The document discusses various components and systems of internal combustion engines, including:
- The crankshaft, connecting rod, camshaft, spark plug, drivetrain, turbochargers, carburetors, fuel injection systems, engine lubrication systems, rotary engines, two-stroke engines, and experimental five-stroke and six-stroke engines. It provides brief descriptions of how each component or system functions within an engine.
Complete guide to Internal Combustion engines (IC engines)Syed Yaseen
The following presentation is a part of an online course called "A brief overview of IC engine". The presentation contains complete information about IC engines and will be helpful for students of Mechanical and Automobile engineering. The presentation is full of graphics to reduce the efforts of students for imagination and help them to understand the concept as soon as possible.
hi, I am sujon I just completed graduate at International University of Business Agriculture and Technology in Bangladesh Department of Mechanical Engineering
Do you know what is engine, how many types of engines are available now. How conversion of energy takes place from chemical energy to mechanical energy or useful work. Here engine classified according to their combustion, working stroke, arrangement of piston, fuel used for combustion and on the basis of ignition system. 4-stroke petrol engine and 4-stroke diesel engine are described briefly with all 4-strokes which are completed during power conversion process. 2-stroke engine or scooter engine is also described briefly with the complete details of combustion, charge( petrol,diesel ) filling process and how all 4 stroke process(suction, combustion,power stroke, exhaust) completed in 2 stroke engine.
Classification of fuel injectors and nozzleVaibhav Patil
Fuel injectors atomize the fuel into very fine droplets, and increases the surface area of the fuel droplets resulting in better mixing and subsequent combustion Atomization is done by forcing the fuel through a small orifice under high pressure.
Complete guide to Internal Combustion engines (IC engines)Syed Yaseen
The following presentation is a part of an online course called "A brief overview of IC engine". The presentation contains complete information about IC engines and will be helpful for students of Mechanical and Automobile engineering. The presentation is full of graphics to reduce the efforts of students for imagination and help them to understand the concept as soon as possible.
hi, I am sujon I just completed graduate at International University of Business Agriculture and Technology in Bangladesh Department of Mechanical Engineering
Do you know what is engine, how many types of engines are available now. How conversion of energy takes place from chemical energy to mechanical energy or useful work. Here engine classified according to their combustion, working stroke, arrangement of piston, fuel used for combustion and on the basis of ignition system. 4-stroke petrol engine and 4-stroke diesel engine are described briefly with all 4-strokes which are completed during power conversion process. 2-stroke engine or scooter engine is also described briefly with the complete details of combustion, charge( petrol,diesel ) filling process and how all 4 stroke process(suction, combustion,power stroke, exhaust) completed in 2 stroke engine.
Classification of fuel injectors and nozzleVaibhav Patil
Fuel injectors atomize the fuel into very fine droplets, and increases the surface area of the fuel droplets resulting in better mixing and subsequent combustion Atomization is done by forcing the fuel through a small orifice under high pressure.
this is the ppt on 2 stroke and 4 stroke petrol engine. . i made this ppt with the help of dhrumil patel .who is in the L.D. college of engineering in chemical department. . i am very thankful to him for being my great partner. . .thanx dhrumil..
This lengthy (150+ slides), but very comprehensive presentation is designed to help experienced SEOs train those new to the practice over a 2-3 hour, interactive session. It covers the search engine landscape, the SEO process, keyword research, link building and the emergence of social media as a ranking signal.
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• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
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• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
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3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
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3. An Introduction
The internal combustion (IC) engine converts
chemical energy into useful mechanical energy by
burning fuel.
Chemical energy is released when the fuel-air mixture
is ignited by the spark in the combustion chamber.
The gas produced in this reaction rapidly expands
forcing the piston down the cylinder on the power
stroke.
21. •The crankshaft, sometimes casually abbreviated to crank,
is the part of an engine which translates reciprocating linear piston motion into rotation.
•To convert the reciprocating motion into rotation, the crankshaft has
"crank throws" or "crankpins"
22.
23. •In a reciprocating piston engine, the connecting rod
or conrod connects the piston to the crank or
crankshaft.
•The connecting rod was invented sometime
between 1174 and 1200
24.
25. •The camshaft is an apparatus often used in
piston engines to operate poppet valves.
•It consists of a cylindrical rod running the length
of the cylinder bank with a number of oblong lobes
or cams protruding from it, one for each valve.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37. • A spark plug is an electrical device that fits into
the cylinder head of internal combustion engines
and ignites compressed aerosol gasoline by means
of an electric spark.
• Internal combustion engines can be divided into
spark-ignition engines, which require spark plugs
to begin combustion, and compression-ignition engines
(diesel engines), which compress the air and then inject
diesel fuel into the heated compressed air mixture
where it auto-ignites.
38. Spark plug gapping: The centre electrode
(dark rod) is a cylindrical rod, and the top
ground electrode (a hook) has square
edges. When regapping, the hook is raised
or lowered to adjust the gap, often to
0.035 to 0.050 inches.
The main issues with spark plug gaps are:
· Narrow-Gap risk: spark might be too weak/small to ignite fuel;
· Narrow-Gap benefit: plug always fires on each cycle;
· Wide-Gap risk: plug might not fire, or miss at high speeds;
· Wide-Gap benefit: spark is strong for a clean burn.
A properly gapped plug will be wide enough to burn hot, but not so
wide that it skips or misses at high speeds, causing that cylinder to drag,
or the engine to begin to rattle.
39.
40.
41.
42.
43.
44.
45. • The drivetrain is the mechanical path by which the engine
sends power to the wheels (i.e. provides drive).
• The drivetrain includes a gearbox, a power transmission
or transfer system i.e. chain and sprocket or drive shaft,
a differential, axles, CV joints, wheels and tyres and finally
the braking system.
46.
47.
48.
49.
50.
51.
52.
53. Turbochargers are a type of forced induction system which has
its compressor powered by a gas turbine running off the exhaust
gases from the engine.
The purpose of a turbocharger is to increase the mass of air
entering the engine to create more power. The compressor which
drives the turbocharger is powered by a turbine driven by the
engine‘s own exhaust gases.
54.
55.
56.
57.
58.
59.
60.
61. A carburettor is a device that blends air and fuel for an
internal combustion engine. It was invented by Karl Benz
before 1885 , patented in 1886. It is colloquially called a carb
62.
63.
64.
65. Fuel injection is a system for mixing fuel with air in an
internal combustion engine. It has become the primary system
used in automotive engines, having almost completely replaced
carburettors in the late 1980s.
66.
67.
68. TYPICAL EFI (ELECTRONIC FUEL INJECTION) COMPONENTS
• Injectors
• Fuel Pump
• Fuel Pressure Regulator
• ECM - Engine Control Module; includes a digital computer and
circuitry to communicate with sensors and control outputs.
• Wiring Harness
• Various Sensors (Some of the sensors required are listed here.)
o Crank/Cam Position: Hall effect sensor
o Airflow: MAF sensor, sometimes inferred with a MAP sensor
o Exhaust Gas Oxygen: Oxygen sensor, EGO sensor, UEGO sensor
69.
70. An internal combustion engine would not run for even a few
minutes if the moving parts were allowed to make metal-to-
metal contact. The heat generated due to the tremendous
amounts of friction would melt the metals, leading to the
destruction of the engine. To prevent this, all moving parts ride
on a thin film of oil that is pumped between all the moving parts
of the engine.
Once between the moving parts, the oil serves two purposes.
One purpose is to lubricate the bearing surfaces. The other
purpose is to cool the bearings by absorbing the friction-
generated heat. The flow of oil to the moving parts is
accomplished by the engine's internal lubricating system.
71.
72.
73. A Rotary Engine is an internal combustion engine, like the engine
in your car, but it works in a completely different way than the
conventional piston engine.
In a piston engine, the same volume of space (the cylinder)
alternately does four different jobs: intake, compression,
combustion and exhaust.
A rotary engine does these same four jobs, but each one
happens in its own part of the housing. It's kind of like having a
dedicated cylinder for each of the four jobs, with the piston
moving continually from one to the next.
The rotary engine (originally conceived and developed by Dr.
Felix Wankel) is sometimes called a Wankel engine, or Wankel
rotary engine.
83. Engines based on the two-stroke cycle use two strokes (one
up, one down) for every power stroke. Since there are no
dedicated intake or exhaust strokes, alternative methods
must be used to scavenge the cylinders. The most common
method in spark-ignition two-strokes is to use the
downward motion of the piston to pressurize fresh charge
in the crankcase, which is then blown through the cylinder
through ports in the cylinder walls.
84.
85.
86.
87.
88. Engines based on the five-stroke cycle are a variant of the four-
stroke cycle. Normally, the four cycles are intake, compression,
combustion, and exhaust. The fifth cycle added by Delautour is
refrigeration. Engines running on a five-stroke cycle are claimed to
be up to 30% more efficient than equivalent four-stroke engines.
The six stroke engine captures the wasted heat from the four-
stroke Otto cycle and creates steam, which simultaneously cools
the engine while providing a free power stroke. This removes the
need for a cooling system making the engine lighter while giving
40% increased efficiency over the Otto Cycle. Beare Head
Technology combines a four-stroke engine bottom-end with a
ported cylinder which closely resembles that of a two-stroke: thus,
4+2 equals a six-stroke cycle. It has an opposing piston that acts in
unison with auxiliary low pressure reed and rotary valves, which
allows variable compression and a range of tuning options.