Introduction to the internal combustion engine. The vehicle propulsion is usually obtained by means of engines, also known as prime movers, i.e. mechanical devices capable to convert the chemical energy of a fuel into mechanical energy.
This document provides information on diesel propulsion systems and two-stroke diesel engines. It begins with learning objectives about familiarizing students with marine diesel engines. It then describes the operating cycles of internal combustion engines, including the Otto, Diesel, and dual cycles. It explains the four-stroke cycle and two-stroke cycle of compression ignition engines. Details are provided on the intake, compression, power, and exhaust strokes. The timing diagrams of the four-stroke and two-stroke cycles are illustrated. Valve timing and overlapping are also discussed.
The document discusses the working principles of internal combustion engines. It begins by explaining that all IC engines must go through four strokes in a specific order: intake, compression, expansion/power, and exhaust. It then provides detailed descriptions and diagrams of how four-stroke petrol and diesel engines work through each stroke of the cycle. Key aspects covered include the valve timing, combustion processes, and thermodynamic cycles involved. Comparisons are made between two-stroke and four-stroke engines as well.
theoretical valve timing diagram of two stroke engine
theoretical valve timing diagram of four stroke engine
actual valve timing diagram of two stroke diesel engine
actual valve timing diagram of four stroke diesel engine
Thermal ii (ppt on valve timing diagram for four stroke si engine)Taran Singh Saini
This document discusses the valve timing diagram of a four-stroke spark ignition engine. It begins by describing the main components of an S.I. engine and the four strokes of its cycle. It then explains that the valve timing diagram shows the angular opening and closing of the intake and exhaust valves throughout the cycle. Theoretical and actual valve timing diagrams are compared, with the actual diagram accounting for mechanical factors that cause the valves to open and close earlier than theoretically ideal times. Intake and exhaust valve timing are then described in detail for both low and high-speed engines.
This document provides an overview of internal combustion engines. It defines internal and external combustion engines and provides examples of each. The key types of internal combustion engines are described as spark ignition engines (e.g. gasoline engines) and compression ignition engines (e.g. diesel engines). The anatomy and function of major engine components are outlined for both 4-stroke and 2-stroke engines. Differences between gasoline and diesel engines as well as 4-stroke and 2-stroke engines are summarized. Safety precautions for engines are also listed.
An introduction to the workings of a four stroke engine including parts and their processes, the four strokes, compression ratio and displacement, torque and power, DOHC, SOHC and OHV valve set ups, turbochargers and superchargers
This document contains diagrams and explanations of valve and port timing for various engine types. It begins by explaining what engine valve timing is and how the camshaft opens and closes the valves. It then provides diagrams and timing angles in degrees for:
1) A 4-stroke petrol engine valve timing diagram
2) A 4-stroke diesel engine valve timing diagram
3) Port timing diagrams for 2-stroke petrol and diesel engines along with their timing angles.
It concludes by providing more details on the theoretical port timing diagram for a 2-stroke diesel engine.
The document summarizes the main internal combustion engine parts. It describes the cylinder block, cylinder, piston, combustion chamber, inlet and exhaust manifolds, valves, spark plug, connecting rod, crankshaft, piston rings, gudgeon pin, camshaft, cams, flywheel, carburetor, fuel pump, and fuel injector. It explains the purpose and function of each part in 1-3 sentences.
This document provides information on diesel propulsion systems and two-stroke diesel engines. It begins with learning objectives about familiarizing students with marine diesel engines. It then describes the operating cycles of internal combustion engines, including the Otto, Diesel, and dual cycles. It explains the four-stroke cycle and two-stroke cycle of compression ignition engines. Details are provided on the intake, compression, power, and exhaust strokes. The timing diagrams of the four-stroke and two-stroke cycles are illustrated. Valve timing and overlapping are also discussed.
The document discusses the working principles of internal combustion engines. It begins by explaining that all IC engines must go through four strokes in a specific order: intake, compression, expansion/power, and exhaust. It then provides detailed descriptions and diagrams of how four-stroke petrol and diesel engines work through each stroke of the cycle. Key aspects covered include the valve timing, combustion processes, and thermodynamic cycles involved. Comparisons are made between two-stroke and four-stroke engines as well.
theoretical valve timing diagram of two stroke engine
theoretical valve timing diagram of four stroke engine
actual valve timing diagram of two stroke diesel engine
actual valve timing diagram of four stroke diesel engine
Thermal ii (ppt on valve timing diagram for four stroke si engine)Taran Singh Saini
This document discusses the valve timing diagram of a four-stroke spark ignition engine. It begins by describing the main components of an S.I. engine and the four strokes of its cycle. It then explains that the valve timing diagram shows the angular opening and closing of the intake and exhaust valves throughout the cycle. Theoretical and actual valve timing diagrams are compared, with the actual diagram accounting for mechanical factors that cause the valves to open and close earlier than theoretically ideal times. Intake and exhaust valve timing are then described in detail for both low and high-speed engines.
This document provides an overview of internal combustion engines. It defines internal and external combustion engines and provides examples of each. The key types of internal combustion engines are described as spark ignition engines (e.g. gasoline engines) and compression ignition engines (e.g. diesel engines). The anatomy and function of major engine components are outlined for both 4-stroke and 2-stroke engines. Differences between gasoline and diesel engines as well as 4-stroke and 2-stroke engines are summarized. Safety precautions for engines are also listed.
An introduction to the workings of a four stroke engine including parts and their processes, the four strokes, compression ratio and displacement, torque and power, DOHC, SOHC and OHV valve set ups, turbochargers and superchargers
This document contains diagrams and explanations of valve and port timing for various engine types. It begins by explaining what engine valve timing is and how the camshaft opens and closes the valves. It then provides diagrams and timing angles in degrees for:
1) A 4-stroke petrol engine valve timing diagram
2) A 4-stroke diesel engine valve timing diagram
3) Port timing diagrams for 2-stroke petrol and diesel engines along with their timing angles.
It concludes by providing more details on the theoretical port timing diagram for a 2-stroke diesel engine.
The document summarizes the main internal combustion engine parts. It describes the cylinder block, cylinder, piston, combustion chamber, inlet and exhaust manifolds, valves, spark plug, connecting rod, crankshaft, piston rings, gudgeon pin, camshaft, cams, flywheel, carburetor, fuel pump, and fuel injector. It explains the purpose and function of each part in 1-3 sentences.
The document compares 2-stroke and 4-stroke engines across several factors. 4-stroke engines have an intake, compression, power, and exhaust stroke per cycle. They are heavier with valves but have higher efficiency. 2-stroke engines have a power stroke every revolution due to ports, making them lighter but less efficient due to incomplete exhaust scavenging causing pollution. Cooling and lubrication are more critical for 2-stroke engines due to their higher revolutions per minute. Overall, 4-stroke engines are more widely used except for small vehicles due to their better performance and lower fuel consumption.
The document discusses various topics related to computerized engine controls and direct fuel injection systems. It describes the four strokes of a direct fuel injected gasoline engine: intake, compression, combustion, and exhaust. It also mentions functional decomposition of engine communication systems and using direct injection for achieving fuel economy and low emissions.
The document provides an overview of internal combustion engines. It discusses the basic classifications and cycles of internal combustion engines including two-stroke and four-stroke engines. It also covers the workings of spark ignition and compression ignition engines, as well as common engine components and systems such as carburetors and fuel injection systems. Key topics include the Otto, Diesel, and Carnot power cycles; combustion stages; valve timing diagrams; and scavenging, pre-ignition, detonation, lubrication, and emissions control.
Valve timing diagram for - four stroke & two stroke - diesel & petrol engine ...Satish Patel
The document discusses valve timing diagrams for 4-stroke and 2-stroke petrol and diesel engines. It provides details on the opening and closing of intake, exhaust, and transfer ports during each stroke. For 4-stroke engines, it describes the intake, compression, power, and exhaust strokes. The actual valve timings are given for 4-stroke diesel and petrol engines. For 2-stroke engines, it explains the expansion and compression strokes and provides the actual valve timings. Diagrams are included to illustrate the valve timing events during each stage of the engine cycles.
This document provides an overview of internal combustion (IC) engines, including:
- The main types of IC engines are reciprocating and rotary engines, classified by working cycle as Otto or diesel cycle engines, and by strokes as two-stroke or four-stroke engines.
- Four-stroke engines complete their cycle over two revolutions of the crankshaft, with intake, compression, power, and exhaust strokes. In a four-stroke SI engine, an air-fuel mixture is drawn in and compressed before being ignited by a spark plug.
- Four-stroke diesel engines operate at higher compression ratios than gasoline engines, igniting injected fuel without a spark plug due to high compression temperatures.
This document provides an overview of the main parts of a petrol engine and their functions. The key parts include the cylinder, piston, connecting rod, crankshaft, and flywheel. The cylinder contains the combustion gases and guides the piston, while the piston converts the gas pressure into thrust. The connecting rod transmits the piston's motion to the crankshaft, converting the reciprocating motion into rotation.
This slide show accompanies the learner guide "Mechanical Technology Grade 10" by Charles Goodwin, Andre Lategan & Daniel Meyer, published by Future Managers Pty Ltd. For more information visit our website www.futuremanagers.net
Automobile Engineering Engine ScavangingJainam Shah
This document defines scavenging and describes the different types of scavenging processes in two-stroke engines. Scavenging is the process where burnt gases escape the cylinder to make room for fresh fuel-air mixture. It discusses three theoretical scavenging processes: perfect scavenging, perfect mixing, and short circuiting. It also describes three practical scavenging processes used in engines: uniflow, loop, and crossflow scavenging. Uniflow has exhaust at the top and inlet ports at the bottom, with flow in the same direction. Loop scavenging has inlet and exhaust ports on one side with the fresh charge flowing in a loop. Crossflow has the transfer and exhaust ports opposite each other
The document provides information on internal combustion engines, including:
- IC engines convert chemical energy from fuels like gasoline into mechanical work. They are used in vehicles, generators, and other machinery.
- The basic components of IC engines are cylinders, pistons, inlet/exhaust valves. Pistons move between top and bottom dead centers.
- IC engines are classified as either spark-ignition (gasoline) or compression-ignition (diesel) based on how combustion is initiated in the cylinder.
The document then discusses air standard cycles that model idealized versions of engine cycles, including the Otto cycle for gasoline engines and Diesel cycle for diesel engines. It provides analysis of the cycles
The document provides an introduction to internal combustion engines. It discusses the basic differences between internal and external combustion engines and classifications of internal combustion engines based on fuel, cycle of operation, and combustion process. It then describes the basic parts and working principles of 4-stroke petrol and diesel engines as well as 2-stroke petrol engines. Key differences between petrol and diesel engines are also highlighted. The document concludes by defining common terminology used in internal combustion engines.
The document provides an overview of the four stroke internal combustion engine. It discusses the history, working principle, and key parts of a four stroke petrol engine. The four strokes are intake, compression, expansion, and exhaust. Important engine parts discussed include the cylinder block, cylinder head, pistons, valves, crankshaft, camshaft, connecting rod, and spark plug. The crankshaft converts the reciprocating motion of the piston into rotational motion, while the camshaft operates the intake and exhaust valves according to the piston stroke.
The document discusses the operation of 4-stroke and 2-stroke engines. It describes the four strokes of a 4-stroke engine: intake, compression, power, and exhaust. The actual valve timings for 4-stroke diesel and petrol engines are provided. For 2-stroke engines, it explains how the power and compression strokes occur simultaneously, with the intake of fresh air assisted by exhaust gases pushing out through ports. Theoretical and actual valve timings are presented for 2-stroke petrol and diesel engines.
- Two-stroke engines complete the combustion cycle in two strokes of the piston rather than four strokes, as in four-stroke engines. They rely on crankcase compression or a blower to induct fresh air and remove exhaust gases, rather than separate intake and exhaust strokes.
- There are different types of two-stroke engines based on the scavenging method (crankcase or separately scavenged), scavenging process (cross flow, loop, uni-flow), and port timing (symmetrical or unsymmetrical).
- In a crankcase-scavenged engine, the piston helps induct fresh air into the crankcase and transfers it into the cylinder, where it scavenges out exhaust gases
Four stroke engines and Two stroke enginesbhavika chavda
This document describes the four stroke engine cycle. It explains that a four stroke engine completes one thermodynamic cycle over four strokes: the intake stroke, compression stroke, power stroke, and exhaust stroke. It then provides details on the basic components and workings of both spark ignition (gasoline) and compression ignition (diesel) four stroke engines. It explains the events that occur in each stroke of the four stroke cycle for both engine types.
This document provides an overview of the basics of four-stroke engines. It begins with an orientation that outlines the materials to be covered, including the four-stroke cycle and basic components of a four-stroke engine. The presentation then defines a four-stroke engine and other engine types. The basic components of a four-stroke engine are identified and explained. Finally, the four stages of the four-stroke cycle - intake, compression, combustion, and exhaust - are detailed. The document aims to provide learners with foundational knowledge of how four-stroke engines work.
The document discusses various topics related to spark ignition engines, including:
- Air-fuel ratio requirements and how they affect power output and fuel consumption. Carburetor design factors like venturi size and fuel jet size that are used to achieve the proper air-fuel ratio.
- The different stages of combustion in spark ignition engines including normal combustion and abnormal combustion like knocking. Factors that influence knocking like fuel composition, engine speed and temperature.
- Designs of common combustion chambers and their advantages in providing smooth engine operation and high power output.
- An overview of carburetor components and functions including the float chamber, venturi, throttle and choke. Principles of carburetion and vapor
The 4-stroke engine cycle consists of the intake stroke, compression stroke, power/combustion stroke, and exhaust stroke within one revolution of the crankshaft. During the intake stroke, the intake valve opens and the piston travels down to allow an air-fuel mixture into the cylinder. In the compression stroke, both valves are closed and the piston compresses the mixture. The spark plug then ignites the compressed mixture in the power stroke to force the piston down. Finally, in the exhaust stroke the exhaust valve opens and the piston pushes out the exhaust gases. The key components of a 4-stroke engine include the intake and exhaust valves, piston, spark plug, crankshaft, and camshaft.
The document discusses the history and workings of different types of engines. It describes how Nicolaus Otto invented the four-stroke engine in 1876. A four-stroke engine completes one cycle over four strokes and two revolutions of the crankshaft. It also describes how a two-stroke engine, invented in 1878 by Clerk, completes a cycle in one revolution due to the use of ports instead of valves.
The document discusses the basic components and functions of a four-stroke internal combustion engine. It explains that a four-stroke engine converts gasoline into motion through intake, compression, combustion, and exhaust strokes. The key internal parts include the piston, connecting rod, crankshaft, camshaft, valves, spark plug, cylinders, and ports that allow air-fuel intake and exhaust gases out.
The four stroke SI engine involves four strokes - intake, compression, combustion, and exhaust. In the intake stroke, a fuel-air mixture is introduced into the cylinder through the intake valve. In the compression stroke, the fuel-air mixture is compressed. In the combustion stroke, combustion occurs at constant volume, causing the product gases to expand and do work. In the exhaust stroke, the product gases are pushed out through the exhaust valve.
The document provides an introduction to the basic systems of an internal combustion (IC) engine, including:
- Heat engines and the difference between internal and external combustion engines
- IC engine terminology and the four-stroke operating cycle
- Engine construction components like the cylinder block, piston, connecting rod, cylinder head, and flywheel
- Ignition, fuel, lubrication, and cooling systems
- Types of IC engines classified by design, fuel used, number of strokes, ignition method, cylinders, and cooling method
The summary captures the key topics and essential information covered in the document regarding the fundamental components and systems that make up IC engines.
This document provides information about four-stroke and two-stroke engines as well as diesel engines. It discusses the operation and components of each type of engine. For four-stroke engines, it describes the intake, compression, power, and exhaust strokes. For two-stroke engines, it explains the up and down strokes. It also discusses valve timing, fuel mixtures, advantages and limitations of two-stroke engines. For diesel engines, it outlines the compression ignition process, compression ratios, and advantages/disadvantages compared to gas engines.
The document compares 2-stroke and 4-stroke engines across several factors. 4-stroke engines have an intake, compression, power, and exhaust stroke per cycle. They are heavier with valves but have higher efficiency. 2-stroke engines have a power stroke every revolution due to ports, making them lighter but less efficient due to incomplete exhaust scavenging causing pollution. Cooling and lubrication are more critical for 2-stroke engines due to their higher revolutions per minute. Overall, 4-stroke engines are more widely used except for small vehicles due to their better performance and lower fuel consumption.
The document discusses various topics related to computerized engine controls and direct fuel injection systems. It describes the four strokes of a direct fuel injected gasoline engine: intake, compression, combustion, and exhaust. It also mentions functional decomposition of engine communication systems and using direct injection for achieving fuel economy and low emissions.
The document provides an overview of internal combustion engines. It discusses the basic classifications and cycles of internal combustion engines including two-stroke and four-stroke engines. It also covers the workings of spark ignition and compression ignition engines, as well as common engine components and systems such as carburetors and fuel injection systems. Key topics include the Otto, Diesel, and Carnot power cycles; combustion stages; valve timing diagrams; and scavenging, pre-ignition, detonation, lubrication, and emissions control.
Valve timing diagram for - four stroke & two stroke - diesel & petrol engine ...Satish Patel
The document discusses valve timing diagrams for 4-stroke and 2-stroke petrol and diesel engines. It provides details on the opening and closing of intake, exhaust, and transfer ports during each stroke. For 4-stroke engines, it describes the intake, compression, power, and exhaust strokes. The actual valve timings are given for 4-stroke diesel and petrol engines. For 2-stroke engines, it explains the expansion and compression strokes and provides the actual valve timings. Diagrams are included to illustrate the valve timing events during each stage of the engine cycles.
This document provides an overview of internal combustion (IC) engines, including:
- The main types of IC engines are reciprocating and rotary engines, classified by working cycle as Otto or diesel cycle engines, and by strokes as two-stroke or four-stroke engines.
- Four-stroke engines complete their cycle over two revolutions of the crankshaft, with intake, compression, power, and exhaust strokes. In a four-stroke SI engine, an air-fuel mixture is drawn in and compressed before being ignited by a spark plug.
- Four-stroke diesel engines operate at higher compression ratios than gasoline engines, igniting injected fuel without a spark plug due to high compression temperatures.
This document provides an overview of the main parts of a petrol engine and their functions. The key parts include the cylinder, piston, connecting rod, crankshaft, and flywheel. The cylinder contains the combustion gases and guides the piston, while the piston converts the gas pressure into thrust. The connecting rod transmits the piston's motion to the crankshaft, converting the reciprocating motion into rotation.
This slide show accompanies the learner guide "Mechanical Technology Grade 10" by Charles Goodwin, Andre Lategan & Daniel Meyer, published by Future Managers Pty Ltd. For more information visit our website www.futuremanagers.net
Automobile Engineering Engine ScavangingJainam Shah
This document defines scavenging and describes the different types of scavenging processes in two-stroke engines. Scavenging is the process where burnt gases escape the cylinder to make room for fresh fuel-air mixture. It discusses three theoretical scavenging processes: perfect scavenging, perfect mixing, and short circuiting. It also describes three practical scavenging processes used in engines: uniflow, loop, and crossflow scavenging. Uniflow has exhaust at the top and inlet ports at the bottom, with flow in the same direction. Loop scavenging has inlet and exhaust ports on one side with the fresh charge flowing in a loop. Crossflow has the transfer and exhaust ports opposite each other
The document provides information on internal combustion engines, including:
- IC engines convert chemical energy from fuels like gasoline into mechanical work. They are used in vehicles, generators, and other machinery.
- The basic components of IC engines are cylinders, pistons, inlet/exhaust valves. Pistons move between top and bottom dead centers.
- IC engines are classified as either spark-ignition (gasoline) or compression-ignition (diesel) based on how combustion is initiated in the cylinder.
The document then discusses air standard cycles that model idealized versions of engine cycles, including the Otto cycle for gasoline engines and Diesel cycle for diesel engines. It provides analysis of the cycles
The document provides an introduction to internal combustion engines. It discusses the basic differences between internal and external combustion engines and classifications of internal combustion engines based on fuel, cycle of operation, and combustion process. It then describes the basic parts and working principles of 4-stroke petrol and diesel engines as well as 2-stroke petrol engines. Key differences between petrol and diesel engines are also highlighted. The document concludes by defining common terminology used in internal combustion engines.
The document provides an overview of the four stroke internal combustion engine. It discusses the history, working principle, and key parts of a four stroke petrol engine. The four strokes are intake, compression, expansion, and exhaust. Important engine parts discussed include the cylinder block, cylinder head, pistons, valves, crankshaft, camshaft, connecting rod, and spark plug. The crankshaft converts the reciprocating motion of the piston into rotational motion, while the camshaft operates the intake and exhaust valves according to the piston stroke.
The document discusses the operation of 4-stroke and 2-stroke engines. It describes the four strokes of a 4-stroke engine: intake, compression, power, and exhaust. The actual valve timings for 4-stroke diesel and petrol engines are provided. For 2-stroke engines, it explains how the power and compression strokes occur simultaneously, with the intake of fresh air assisted by exhaust gases pushing out through ports. Theoretical and actual valve timings are presented for 2-stroke petrol and diesel engines.
- Two-stroke engines complete the combustion cycle in two strokes of the piston rather than four strokes, as in four-stroke engines. They rely on crankcase compression or a blower to induct fresh air and remove exhaust gases, rather than separate intake and exhaust strokes.
- There are different types of two-stroke engines based on the scavenging method (crankcase or separately scavenged), scavenging process (cross flow, loop, uni-flow), and port timing (symmetrical or unsymmetrical).
- In a crankcase-scavenged engine, the piston helps induct fresh air into the crankcase and transfers it into the cylinder, where it scavenges out exhaust gases
Four stroke engines and Two stroke enginesbhavika chavda
This document describes the four stroke engine cycle. It explains that a four stroke engine completes one thermodynamic cycle over four strokes: the intake stroke, compression stroke, power stroke, and exhaust stroke. It then provides details on the basic components and workings of both spark ignition (gasoline) and compression ignition (diesel) four stroke engines. It explains the events that occur in each stroke of the four stroke cycle for both engine types.
This document provides an overview of the basics of four-stroke engines. It begins with an orientation that outlines the materials to be covered, including the four-stroke cycle and basic components of a four-stroke engine. The presentation then defines a four-stroke engine and other engine types. The basic components of a four-stroke engine are identified and explained. Finally, the four stages of the four-stroke cycle - intake, compression, combustion, and exhaust - are detailed. The document aims to provide learners with foundational knowledge of how four-stroke engines work.
The document discusses various topics related to spark ignition engines, including:
- Air-fuel ratio requirements and how they affect power output and fuel consumption. Carburetor design factors like venturi size and fuel jet size that are used to achieve the proper air-fuel ratio.
- The different stages of combustion in spark ignition engines including normal combustion and abnormal combustion like knocking. Factors that influence knocking like fuel composition, engine speed and temperature.
- Designs of common combustion chambers and their advantages in providing smooth engine operation and high power output.
- An overview of carburetor components and functions including the float chamber, venturi, throttle and choke. Principles of carburetion and vapor
The 4-stroke engine cycle consists of the intake stroke, compression stroke, power/combustion stroke, and exhaust stroke within one revolution of the crankshaft. During the intake stroke, the intake valve opens and the piston travels down to allow an air-fuel mixture into the cylinder. In the compression stroke, both valves are closed and the piston compresses the mixture. The spark plug then ignites the compressed mixture in the power stroke to force the piston down. Finally, in the exhaust stroke the exhaust valve opens and the piston pushes out the exhaust gases. The key components of a 4-stroke engine include the intake and exhaust valves, piston, spark plug, crankshaft, and camshaft.
The document discusses the history and workings of different types of engines. It describes how Nicolaus Otto invented the four-stroke engine in 1876. A four-stroke engine completes one cycle over four strokes and two revolutions of the crankshaft. It also describes how a two-stroke engine, invented in 1878 by Clerk, completes a cycle in one revolution due to the use of ports instead of valves.
The document discusses the basic components and functions of a four-stroke internal combustion engine. It explains that a four-stroke engine converts gasoline into motion through intake, compression, combustion, and exhaust strokes. The key internal parts include the piston, connecting rod, crankshaft, camshaft, valves, spark plug, cylinders, and ports that allow air-fuel intake and exhaust gases out.
The four stroke SI engine involves four strokes - intake, compression, combustion, and exhaust. In the intake stroke, a fuel-air mixture is introduced into the cylinder through the intake valve. In the compression stroke, the fuel-air mixture is compressed. In the combustion stroke, combustion occurs at constant volume, causing the product gases to expand and do work. In the exhaust stroke, the product gases are pushed out through the exhaust valve.
The document provides an introduction to the basic systems of an internal combustion (IC) engine, including:
- Heat engines and the difference between internal and external combustion engines
- IC engine terminology and the four-stroke operating cycle
- Engine construction components like the cylinder block, piston, connecting rod, cylinder head, and flywheel
- Ignition, fuel, lubrication, and cooling systems
- Types of IC engines classified by design, fuel used, number of strokes, ignition method, cylinders, and cooling method
The summary captures the key topics and essential information covered in the document regarding the fundamental components and systems that make up IC engines.
This document provides information about four-stroke and two-stroke engines as well as diesel engines. It discusses the operation and components of each type of engine. For four-stroke engines, it describes the intake, compression, power, and exhaust strokes. For two-stroke engines, it explains the up and down strokes. It also discusses valve timing, fuel mixtures, advantages and limitations of two-stroke engines. For diesel engines, it outlines the compression ignition process, compression ratios, and advantages/disadvantages compared to gas engines.
The document summarizes the major components, working principles, and systems of internal combustion engines. It describes the cylinder head, engine block, and crankcase as key components. It then explains the four stroke cycle of a four stroke engine and the simultaneous combustion and exhaust strokes of a two stroke engine. Finally, it outlines the main engine systems - fuel, cooling, lubrication, transmission, electrical/ignition, and hydraulic - and describes their general functions and operating mechanisms.
The document discusses internal combustion engines. It classifies engines based on their fuel type, number of strokes, ignition method, combustion cycle, number of cylinders, cylinder arrangement, and cooling method. It then describes the key parts of an internal combustion engine, including the cylinder, piston, piston rings, connecting rod, crank and crankshaft, valves, and flywheel. Finally, it explains the four strokes of operation in both a four-stroke petrol engine and four-stroke diesel engine: the intake stroke, compression stroke, power/expansion stroke, and exhaust stroke.
This document provides an overview of different engine types and their basic components. It discusses the four main types of engines - four-stroke gasoline, two-stroke gasoline, diesel, and rotary. The key internal combustion engine components are then described, including cylinders arranged in inline, V, and flat configurations, intake and exhaust valves, valve springs, lifters, camshafts, spark plugs, pistons, cylinder heads, engine blocks, connecting rods, crankshafts, piston rings, and flywheels. The purpose and function of each major engine part is explained concisely.
This document provides an overview of engine design and operation topics that will be covered in Chapter 3, including the four strokes of a four-stroke engine, compression ratio, camshaft and valvetrain components, cylinder bore and stroke, engine classifications, and the major components and functions of engine lubrication, cooling, and other systems. It lists learning objectives and introduces key terms and concepts to set up explanations that will be provided later in the chapter.
The document describes the key components and working principle of a four-stroke spark ignition engine. It discusses the four strokes - intake, compression, power, and exhaust. For each stroke it explains what is happening within the engine cylinder as the piston moves up and down. The document also discusses valve timing diagrams and important engine cycles like the Otto cycle. It provides definitions for terms like valve overlap and lag. Thermodynamic laws related to engine operation like Boyle's law and Charles' law are also summarized.
contains basic knowledge of engine and different parts and system involved like fuel system, lube system, cooling system, combustion process, air system and circulation , working of external components of engine, reason and symptoms of wear of parts and components. This presentation is made to give the explanation of work done or things learnt during training in prestigious Gainwell Caterpillar.
concept of this ppt is ENGINE COMPONENTS AND OPERATION in ic engine...this have brief concept of ic engine component and operation....
ppt made by PRATIK DARJI..
This document summarizes a seminar on engine components and operation. It outlines the objectives of explaining basic engine function and describing key historical developments. It then identifies the five required events for combustion and describes components like the cylinder block, head, valves, pistons, crankshaft, and their functions. Finally, it explains the operation and differences between 2-stroke and 4-stroke cycles for gasoline and diesel engines.
IC engines(2 stroke/4 stroke),Engine terminology and major components,Power transmission drives(belt ,gear ,rope ,chain),Clutch, Brake,CRDI,MPFI& HYBRID
The document discusses different types of engines including four-stroke gasoline, two-stroke gasoline, diesel, and rotary engines. It describes the basic components of internal combustion engines including cylinders, pistons, valves, camshafts, connecting rods, and crankshafts. The document provides details on the configuration of engines such as inline, V-shaped, and flat designs as well as the function of key parts like the cylinder head, engine block, flywheel, and piston rings.
The document discusses different types of engines including four-stroke gasoline, two-stroke gasoline, diesel, and rotary engines. It describes the basic components of internal combustion engines including cylinders, pistons, valves, camshafts, connecting rods, and crankshafts. The document provides details on the configuration of engines such as inline, V-shaped, and flat designs as well as the function of key parts like the cylinder head, engine block, flywheel, and piston rings.
The document discusses the basic parts and operation of a vehicle clutch system. It describes the key components of a clutch including the flywheel, pressure plate, friction disc, and release mechanism. It explains how the clutch couples and decouples the engine from the transmission to allow for gear changes. The document also compares different clutch designs, such as coil spring and diaphragm clutches, and various methods for releasing the clutch, including linkages, cables, and hydraulic cylinders.
The document discusses the parts and functioning of a four-stroke engine. It explains the four strokes of intake, compression, power, and exhaust. The intake stroke draws fuel and air into the cylinder. In the compression stroke, the valves close and piston compresses the fuel-air mixture. The power stroke ignites the mixture, pushing the piston. Finally, in the exhaust stroke, the spent gases are pushed out. It also lists key engine parts like the piston, crankshaft, connecting rod, valves, and spark plug. The document provides steps for measuring and adjusting tappet clearance to regulate the valves.
difination and explaintion of 2 strike vs 4stroke enginees including defination, ragulation types of and examples explation for educations and projects
The document discusses internal combustion engines (ICEs) and their components and operation. It provides:
1) ICEs operate by burning fuel inside the engine, such as petrol and diesel engines, while external combustion engines burn fuel outside the engine, like steam engines.
2) ICEs are commonly used as prime movers to power vehicles like cars, trucks, boats and planes. They are also used in stationary equipment.
3) ICEs have various parts like the cylinder block, cylinder head, valves, pistons, crankshaft and flywheel that work together to convert the chemical energy in fuel into rotational motion.
This document provides information on internal combustion engines, including:
1. It defines internal combustion engines and classifies them based on where combustion occurs, fuel used, thermodynamic cycle, number of strokes, ignition method, cooling method, and more.
2. It describes the basic components of an IC engine like the cylinder block, cylinder head, piston, connecting rod, crankshaft, and camshaft.
3. It explains the four strokes of a typical four-stroke engine cycle and compares it to the two-stroke engine cycle.
Engine, classification of heat engine, classification of IC engine, component of IC engine, four stroke engine and 2- stroke engine, petrol and diesel engine, comparisons, terminology related to engine
Sacred automotive - Is Your Car Need Regular Maintenance?Sacred Automotive
This document discusses the importance of regular vehicle maintenance. It outlines several key areas that should be addressed during maintenance including fluids and filters, lubrication, wear surfaces, batteries and charging systems, and fuses and lights. Regular maintenance is important for safety, reliability, warranty coverage, and resale value. It helps support the various systems in the vehicle and identify issues before they become problems. Sticking to the manufacturer's recommended maintenance schedule is advised.
Important Duties Of An Auto Mechanic - Sacred AutomotiveSacred Automotive
An auto mechanic inspects and repairs engines, brakes, and other parts of vehicles to identify and address problems. Their job is to diagnose issues quickly and accurately in order to provide cost estimates to customers. Auto mechanics typically work in dirty conditions while fixing car parts. Employers prefer applicants with a high school diploma who have taken courses in metal work, mechanics, science, math, and computers. While certification is not required, it can be beneficial. Mechanics also need the proper tools and an experienced staff to effectively service vehicles.
Sacred Automotive | Vehicle Services and Basic Maintenance and Light Repair I...Sacred Automotive
Sacred Automotive explains here about all information on vehicle services and basic Maintenance and Light Repair Information. Every car owner should know this information.
The diesel internal combustion engine differs from the gasoline powered Otto cycle by using highly compressed hot air to ignite the fuel rather than using a spark plug (compression ignition rather than spark ignition). In the diesel engine, only air is initially introduced into the combustion chamber.
EV Charging at MFH Properties by Whitaker JamiesonForth
Whitaker Jamieson, Senior Specialist at Forth, gave this presentation at the Forth Addressing The Challenges of Charging at Multi-Family Housing webinar on June 11, 2024.
What Could Be Behind Your Mercedes Sprinter's Power Loss on Uphill RoadsSprinter Gurus
Unlock the secrets behind your Mercedes Sprinter's uphill power loss with our comprehensive presentation. From fuel filter blockages to turbocharger troubles, we uncover the culprits and empower you to reclaim your vehicle's peak performance. Conquer every ascent with confidence and ensure a thrilling journey every time.
Implementing ELDs or Electronic Logging Devices is slowly but surely becoming the norm in fleet management. Why? Well, integrating ELDs and associated connected vehicle solutions like fleet tracking devices lets businesses and their in-house fleet managers reap several benefits. Check out the post below to learn more.
Ever been troubled by the blinking sign and didn’t know what to do?
Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
Save them for later and save the trouble!
Understanding Catalytic Converter Theft:
What is a Catalytic Converter?: Learn about the function of catalytic converters in vehicles and why they are targeted by thieves.
Why are They Stolen?: Discover the valuable metals inside catalytic converters (such as platinum, palladium, and rhodium) that make them attractive to criminals.
Steps to Prevent Catalytic Converter Theft:
Parking Strategies: Tips on where and how to park your vehicle to reduce the risk of theft, such as parking in well-lit areas or secure garages.
Protective Devices: Overview of various anti-theft devices available, including catalytic converter locks, shields, and alarms.
Etching and Marking: The benefits of etching your vehicle’s VIN on the catalytic converter or using a catalytic converter marking kit to make it traceable and less appealing to thieves.
Surveillance and Monitoring: Recommendations for using security cameras and motion-sensor lights to deter thieves.
Statistics and Insights:
Theft Rates by Borough: Analysis of data to determine which borough in NYC experiences the highest rate of catalytic converter thefts.
Recent Trends: Current trends and patterns in catalytic converter thefts to help you stay aware of emerging hotspots and tactics used by thieves.
Benefits of This Presentation:
Awareness: Increase your awareness about catalytic converter theft and its impact on vehicle owners.
Practical Tips: Gain actionable insights and tips to effectively prevent catalytic converter theft.
Local Insights: Understand the specific risks in different NYC boroughs, helping you take targeted preventive measures.
This presentation aims to equip you with the knowledge and tools needed to protect your vehicle from catalytic converter theft, ensuring you are prepared and proactive in safeguarding your property.
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Expanding Access to Affordable At-Home EV Charging by Vanessa WarheitForth
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2. Objectives
• Explain the principles of internal combustion engine
operation
• Identify internal combustion engine parts by name
• Describe the function of engine parts
3. Introduction
• First chapter of this gave a basic
description of engine operation
• This chapter covers more in-depth
information
• Later chapters cover firing orders, valve
adjustment, oil pressure testing, etc.
4. Basic Engine Operation
Simple reciprocating engine parts
Cylinder and piston
Connecting rod and crankshaft
Spark-ignited internal combustion engine
Fuel must be an easily vaporized liquid or flammable gas
When air-fuel mixture compressed and burned it pushes the
piston down in a cylinder
Turns a crankshaft that powers the vehicle
5. Basic Engine Operation (cont'd.)
• Flywheel
– Bolted to rear of crankshaft
– Weight blends power pulses into one continuous crankshaft output
• Cylinder head
– Has intake valve port for each cylinder
• Allows air and fuel into the cylinder
– Exhaust valve port allows burned gases to flow out and is sealed by a poppet
valve
– Valve is opening controlled by the camshaft
6. Four-Stroke Engine Operation
• Piston travel
– Upper limit is top dead center
– Lower limit is bottom dead center
• Piston strokes
– Intake
– Compression
– Power
– Exhaust
7. Intake Stroke
• Characteristics
– Gasoline will not burn unless mixed with air
• Crankshaft turns and pulls the rod and piston down into the cylinder
• Creates a low-pressure suction
• Atmospheric pressure pushes air-fuel mixture
– Stoichiometric mixture: 15:1 air to fuel ratio
– Air volume: measured at standard temperature and pressure of 25°C at sea level
– Individual cylinder volume
• Engine displacement divided by cylinders
8. Intake Stroke (cont'd.)
• One mole of air is one ounce
– One mole of nitrogen is 28 grams
– One mole of oxygen is 32 grams
• One pound of air takes up 98 gallons
– Slightly less than two 55-gallon drums
• Engine displacement measured in cubic centimeters or liters
– Convert cubic centimeters to inches: divide by 16.4 and then divide
the result by 1728
9. Compression Stroke
• Begins at BDC after intake stroke completes
– Intake valve closes during compression stroke as the
piston moves up in the cylinder
• Compresses air-fuel mixture
– Compressing the air-fuel mixture heats it
• Makes it easier to burn
10. Power Stroke
• Air-fuel mixture becomes flammable as the piston approaches TDC
– Ignition system produces a spark at the spark plug and ignites
the air-fuel mixture
• Air-fuel mixture expands as it burns
– Forces the piston down until it reaches BDC
– Action of the piston turns the crankshaft
• Blowby causes pressure around the crankshaft
11.
12. Exhaust Stroke
• Exhaust valve opens and allows burned gases to escape
– Expanding gases are forced through open valve
• Piston moves up in the cylinder
– Forces remaining gases out
• Exhaust valve closes a few degrees past TDC
• One four-stroke cycle takes two 360-degree crankshaft revolutions
– Intake and exhaust valves open once
– Ignition occurs once
13. Engine Upper End
• Parts of the upper end of the engine
– Cylinder head(s) and valve train
• Valve train
– Includes parts that open and close the valves
– Cam: located either in block or cylinder head
– Rocker arms: mounted on top of cylinder head
– Pushrod engines: cam bearings are pressed into bores in the block
– Overhead cam: cam journals ride in bores in the cylinder head
14.
15. Cylinder Head
• Cylinder head: bolts to the top of the engine block, sealing off the
cylinders
• Valve parts
– Two valves per cylinder in combustion chambers
• Intake valve is the larger
– Several other valve parts
• Intake manifold: bolted to side of a head or between cylinder heads
• Exhaust manifold: bolted to cylinder head
16.
17.
18.
19. Engine Front
• Camshaft: driven by timing gears or sprockets
– Used with a timing chain or belt
• Timing cover: seals against oil leakage
– Keeps elements out of engines with a timing belt
• Vibration damper: minimizes vibrations in the crankshaft and prevents
damage
– Outer and inner ring are separated by thin rubber strip
• Also called harmonic balancer
20.
21. Cylinder Block Assembly (Lower End)
• Cylinder block
– Cast from iron or aluminum
– Crankshaft and bearings are in the crankcase
– Main bearing bores accommodate the crankshaft
– Main bearing caps allow for installation and removal of the
crankshaft
– Cylinder head gasket fits between the head and the deck
22.
23.
24. Short Block and Long Block
• Long block: complete block assembly with entire valve train
• Short block: cylinder block assembly without heads installed
• Crankshaft: converts reciprocating motion to rotating motion
• Connecting rod: shaped like an I-beam
– Large bore connects rod journal
– Rod cap is attached to bottom of the rod
25.
26. Short Block and Long Block (cont'd.)
• Piston skirt: fits to cylinder bore
– Typical piston has three ring grooves above
• Two on top for compression rings
• Bottom for oil control
• Piston pin: installed on connecting rod small end
– Pin bores provide a pivot point for the piston pin
• Piston rings: seal between piston ring grooves and cylinder wall
– Keeps combustion pressure from entering crankcase
27.
28. Short Block and Long Block (cont'd.)
• Oil seals: installed on the front and rear of crankshaft
• Oil pan: stamped sheet metal or plastic that encloses the crankcase
• Flywheel: used with manual transmission
– Weight carries crankshaft beyond BDC
– Ring gear provides a gear drive for the starter
– Provides a surface for the clutch to work upon
• Torque converter and flexplate: replace flywheel in automatic
transmissions
29.
30. Summary
• One four-stroke cycle completes the intake, compression, power, and exhaust
strokes
– Camshaft turns once and crankshaft turns twice during one four-stroke cycle
• Piston motion is changed to rotary motion by the connecting rod and crankshaft
• Flywheel gives momentum to the crankshaft and smoothes impulses between
power strokes
• Camshaft and valve train control the engine’s intake and exhaust flow