Bhagawan Upreti presented on the six stroke engine. The six stroke engine adds two additional strokes to the traditional four stroke engine cycle to improve efficiency and reduce emissions. It captures waste heat from the four stroke cycle to power an additional exhaust and power stroke. This increases efficiency by 40% over a four stroke engine. Modifications are made to the crankshaft, camshaft, valves and timing to accommodate the extra strokes. While advantages include reduced fuel consumption and emissions, challenges include withstanding thermal stresses and needing separate water tanks for injection. Further development is ongoing to address issues and commercialize six stroke engine technology.
A six stroke engine describes a number of different approaches in the internal combustion engine to capture the waste heat from the four stroke Otto cycle and use it to power an additional power and exhaust stroke of the piston.
Detailed description of Six Stroke Engine with its advantages and disadvantages. It shows the various modifications required to develop a six stroke engine and its feasibility too.
A six stroke engine describes a number of different approaches in the internal combustion engine to capture the waste heat from the four stroke Otto cycle and use it to power an additional power and exhaust stroke of the piston.
Detailed description of Six Stroke Engine with its advantages and disadvantages. It shows the various modifications required to develop a six stroke engine and its feasibility too.
six-stroke engines may be great in improving efficiency, fuel consumption, etc but they may limit the range of a vehicle fitted with them. The range of distance in which a vehicle can cover one tank full of fuel is tank capacity*fuel economy.
difination and explaintion of 2 strike vs 4stroke enginees including defination, ragulation types of and examples explation for educations and projects
A brief explanation of both two stroke engine and four stroke engine with appropriate figures. It can also submitted to professor at the time of submission.
The diesel engine was invented during the industrial revolution by a German engineer. Rudolf Diesel grew up in France but then left for England during the Franco-German war. ... By studying thermodynamics, Diesel found he could make a smaller, internal combustion engine that would convert all heat into work.
One of the most difficult challenges in engine technology today is the urgent need to increase engine thermal efficiency. In the first approach, the engine captures the heat lost from the four-stroke Otto cycle or Diesel cycle and uses it to power an additional power and exhaust stroke of the piston in the same cylinder. The pistons in this type of six-stroke engine go up and down six times for each injection of fuel. Fresh water is injected into the cylinder after the exhaust stroke and is quickly turned to superheated steam, which causes the water to expand to 1400-1600 times its volume and forces the piston down for an additional stroke.
A cooling system also serves to maximize volumetric charge efficiency by reducing the temperature of the charge during intake. This design also claims to reduce fuel consumption by 35%-40%.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
2. OBJECTIVE OF PRESENTATION
• To provide the concept of principle and working of six stroke
engine.
• To show the advantages of six stroke engine over the
conventional four stroke engine with the help of curves.
3. INTRODUCTION
• A six stroke engine derived its name from the fact that it is a
mixture of two and four stroke engine
• The term six stroke engine describes two different approaches in
the internal combustion engine, developed since the early 1990s,
to improve its efficiency and reduce emissions. In the first
approach, the engine captures the waste heat from the four
stroke Otto cycle or Diesel cycle and uses it to get an additional
power and exhaust stroke of the piston in the same cylinder. The
second approach replaces the valve mechanism of a
conventional engine and also it increases the compression ratio.
4. HISTORY AND TYPES
• Its concept was developed in 1880s.However the rapid
research commenced only after 1990s.
• During this,the developed engines are
• A. Single piston designs
• Griffin six-stroke engine
• Bajulaz six-stroke engine
• Velozeta six-stroke engine
5. • B. Opposed piston designs
• Beare Head
• M4+2
• Piston charger engine
•
6. WORKING PRINCIPLE
• It captures the waste heat from the four stroke Otto or dual
cycle and use it to power an additional power and exhaust
stroke of the piston.
• Designs either use steam or air as the working fluid for the
additional power stroke.
• The additional stroke cools the engine and giving 40%
increased efficiency over the four stroke engine.
8. • 1st stroke (suction stroke):
Inlet valve opens, air fuel mixture enters the cylinder.
Piston moves from TDC to BDC.
• 2nd stroke (compression stroke) :
Piston moves from BDC to TDC.
Both the inlet valve and exhaust valve are closed and
The air-fuel mixture is compressed.
9. • 3rd stroke (1st power stroke) :
Power is obtained from the engine by igniting the
compressed air-fuel mixture.
Both valves remain closed.
Piston moves from TDC to BDC.
• 4th stroke (exhaust stroke) :
The exhaust valve opens to remove the burned gases.
Piston moves from BDC to TDC.
10. • 5th stroke (2nd power stroke):
Exhaust valve opens, air inlet valve opens.
Fresh air from the air inlet valve enters the cylinder through the
secondary air induction system.
Piston moves from TDC to BDC.
Fresh water is injected directly into the hot combustion
chamber through the engine's fuel injector pump.
Water is quickly turned to superheated steam.
Water expands to 1600 times its volume and forces the piston down
for an additional Power stroke.
11. • 6th stroke (2nd exhaust stroke) :
The air exhaust valve remains open.
The steam exhaust is passed to the condenser through exhaust
valve.
Piston moves from BDC to TDC.
Hence six stroke cycle is completed.
12. ENGINE PARTS MODIFIED
Crankshaft to camshaft sprockets ratio.
• Crankshaft has 1080 degrees of rotation for 360 degree rotation of the
camshaft per cycle.
• Hence their corresponding sprockets are having teeth in the ratio 3:1.
• In the four stroke engine the teeth of the sprockets of the camshaft and
the Crankshaft was in 2:1 ratio.
• The 34 teeth sprocket of camshaft was replaced by a 42 teeth sprocket.
The camshaft sprockets were also replaced from 17 teeth to 14 teeth to
convert the four stroke engine into six stroke engine.
13. Cam lobes
• The 360 degrees of the cam has been divided into 60
degrees among the six strokes.
• The valve provided at the exhaust has to be kept open
during the fourth, fifth and the sixth stroke. The cam has
been made double lobed in order to avoid the hitting of the
exhaust valve with the piston head.
• The profiles of the exhaust and the inlet cams have been
shown in the figure
14. Valve timing diagram
• The inlet valve opening (IVO) is 0° at TDC, same as that of the
four stroke engine.
• Inlet valve closes (IVC) at 25° after BDC, same as that of the four
stroke engine. Exhaust valve opens (EVO) 0° at BDC, which in the
original engine was 25° before BDC.
• Reduction of 25° advanced opening of exhaust valve extract
maximum work per cycle.
• Exhaust valve closes 10 degree before TDC in order to prevent the
loss of air fuel mixture through the exhaust valve.
17. ADVANTAGES
• There is 40% reduction in fuel consumption.
• Higher overall efficiency and less emission of exhaust gas.
• Extracts work from heat that is ordinarily lost through the
cooling system of a conventional engine.
• The weight and power loss of conventional cooling system parts can
be eliminated.
• Torque increases about 23 and 9 % in otto and dual cycle.
18. PROBLEMS AND LIMITATIONS
• Injecting relatively cold water into a hot metal piston can damage it
over time from thermal expansion and contraction.
• Separate water tank would have significant weight and space
penalties.
• Cold climate anti-freezing measures would be needed in the water
reservoir.
19. FUTURE SCOPE
• Increased efficiency and low fuel requirement can lead to its
extensive use.
• Further studies in new model development is being carried out.
• The automotive industry may soon be revolutionized by a new six-
stroke design which adds a second power stroke, resulting in much
more efficiency with less amount of pollution.
20. CONCLUSION
• Six stroke engines are the technology for the future in vehicles.
• From the above given data it is clear that six stroke engines are
better compared to two stroke and four stroke engines.
• The project is well patented and is undergoing heavy research
works.
• Six stroke engines with all the desired qualities of a two stroke
and four stroke engines will be hitting the market soon.