This document provides information about a 6-stroke engine, including its components, operation, and comparison to a 4-stroke engine. A 6-stroke engine incorporates two additional strokes into the traditional 4-stroke cycle to improve efficiency. It has higher thermal efficiency and power output than a 4-stroke while reducing fuel consumption and emissions. However, its design is more complex due to additional components needed to facilitate the extra strokes. Overall, the 6-stroke engine concept could fulfill future needs for more eco-friendly engines with lower fuel usage.

1. Name – MD GULAM QUADIR
Roll no – 13H11A0331
Mechanical 4th year section
(A)
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2. Contents
 Introduction
 Types of engines
 Engine Component
 Working of 6 stroke engine
Comparison of 6 stroke with 4 stroke engine
 Advantages and disadvantages
Conclusion
 Reference
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3. Engine is a device which transform one form of energy into another
form.
The six stroke engine “Using water” was developed
By Brush Crower in 2006.
A six stroke engine that it is a mixture of two and four stroke engine.
The six stroke engine is a type of internal combustion engine based
on the four stroke engine , but its additional two stroke make it more
efficient and reduce emission.
Types of six stroke engines
1. Griffin six stroke engine.
2. Bajulaz six stroke engine.
3. Crower six stroke engine.
4. Velozeta six stroke engine.
Six stroke engine
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4. 4
Actual Prototype of SIX Stroke engine

5. ENGINE
IC ENGINE
EC
ENGINE
Types Of Engines
IC – Internal combustion engine
EC – External combustion engine
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6.  The internal combustion is an
engine in which the burning of a
fuel occur in a confined space
called “ IC ENGINE’.
 An external
combustion engine is
heat engine where
an(internal) working
fluid is compressed and
heated by combustion
of an external fuel
through the engine wall
or heat exchanger.
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7. 7
Component of engine

8. 8
Alternators – it is used to convert the mechanical
energy into electrical energy.
Camshaft – it is used to controls the opening and
closing of valves.
Time belt – a belt connected to both camshaft
and crankshaft ensuring that they work in time
with each other.
Sparkplug – it is a component to initiate the
combustion process in spark ignition engine and
is usually located on the cylinder.

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10. Working of six
stroke engine
In first stroke
(suction stroke)
 Intake of pure air in
the cylinder.
 The valve is open.
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11. Second stroke
(compression stroke)
Compression of
pure air in the
heating chamber.
Both valves are
closed
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12. Third stroke
(power stroke)
In this stroke the piston
moves downward and the
power transmitted from
piston to wheel.
Both valves are closed.
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13. Fourth stroke
(exhaust stroke)
Exhaust of the
combustion gases.
The exhaust valve is
open.
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14. Fifth stroke
(secondary power stroke)
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In this stage water is
injected by an Injector in the
form of fine droplets and the
water converted into steam.
Both valves are closed.

15. Sixth stroke
(secondary exhaust stroke)
At this stage water is
injected by an
Injector in the form of
fine droplets.
Exhaust valve open.
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16. Comparison Of Six Stroke
Engine With Four Stroke Engine
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In otto cylce ,there
are two adiabatic
processes
1- Adiabatic
compression
2- Adiabatic
expansion
And
One constant
volume heat
Addition process
and one constant

17. 17t
The dual cycle
consist of the
following operations-
1- Adiabatic
Compression
2- Addition of heat at
constant volume
3- Addition of heat at
constant pressure
4- Adiabatic
expansion
5- ejection of heat at
constant volume
The heat is added partly at constant volume and
partly at constant pressure;
The advantage of which is that more time is
available to fuel for combustion.

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parameters Four stroke engine Six stroke engine
Strokes It consist a 4 strokes . It consist a 6 strokes .
( add 2 additional strokes)
Thermal efficiency Low high
Weight Low High
Fuel consumptions High Low
Power Low High
Example- Car ,buses etc. Motor boat, high cost bikes(ex –Ducati).

19. Advantages of six stroke
engine
 The thermal efficiency reaching 40-50%.
 Reduction in fuel consumption by at least 40%.
 Dramatic reduction in pollution.
 Increased torque and power output.
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20. Disadvantage of
six stroke Engine
 Complex Head Design
 Complex Cam Design For Exhaust
(Due to two exhaust strokes).
 Heavier Engine
(Due to combustion engine).
 Manufacturing of essential part is difficult.
Weight increases.
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21. conclusion
 In a six stroke engine the fuel consumption is
less.
Better fuel economy compared with a conventional
four-stroke design.
Torque is increase by 35% and efficiency increased
by the same.
It reduces the weight and complexity of the
engines head by as much as 50%.
The concept of Six Stroke Engine seems to be
rather eco-friendly and low fuel consuming which
can fulfill the needs of near future.
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22. Reference
1)www.wikipedia.com/wiki/six stroke
2)IC engine books.
3)www.bajulazsa.com
4)www.quora.com
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