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A

PAPER PRESENTATIONON

SIX STROKE ENGINE

BY

:

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INTRODUCTION:

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HISTORY:

http://en.wikipedia.org/wiki/Dick,_Kerr_&_Co.http://en.wikipedia.org/wiki/Otto_cyclehttp://en.wikipedia.org/wiki/Bath,_Somersethttp://en.wikipedia.org/wiki/Dick,_Kerr_&_Co.http://en.wikipedia.org/wiki/Otto_cyclehttp://en.wikipedia.org/wiki/Bath,_Somerset

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Recent Development in Six

Stroke Engine:

The currently notable designs in this class are the

Bajulaz engineby the Bajulaz S.A. company of

Switzerland, at 1989

Crower six-stroke engine, invented by Bruce Crower

of the U.S. at 2004

Velozeta Six-stroke enginebuilt by the College ofEngineering, at Trivandrum in India, at 2006

http://en.wikipedia.org/w/index.php?title=Bajulaz_engine&action=edit&redlink=1http://en.wikipedia.org/wiki/Crower_six_strokehttp://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Velozeta_Six-stroke_engine&action=edit&redlink=1http://en.wikipedia.org/wiki/Crower_six_strokehttp://en.wikipedia.org/wiki/Crower_six_strokehttp://en.wikipedia.org/wiki/Crower_six_strokehttp://en.wikipedia.org/w/index.php?title=Bajulaz_engine&action=edit&redlink=1http://en.wikipedia.org/wiki/Crower_six_stroke

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1) Intake valve

2) Heating chamber valve3) Combustion chamber valve

4) Exhaust valve

5) Cylinder

6) Combustion chamber

7) Air heating chamber

8) Wall of combustion chamber

9) Fuel injector10) Heating plug

11) Piston

12) Crankshaft

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SIX STROKE ENGINE EXPLANATION:

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During 3rdand 4thstroke the temperature of the pure compressed

air in the heating chamber is raised sharply by heat exchange from

combustion chamber.

3rdstroke: power stroke (work) .Releaseof combustion gases in the cylinder.

Valve(3) is open.

4th stroke: exhaust of the combustiongases.

Valve (4) is open.

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5thstroke: Power stroke(work)

Release of pure gas in the cylinder.6thstroke: Recompression of pure intothe combustion chamber.

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CROWERS SIX STROKE ENGINEIn a six-stroke engine

developed in the U.S.by Bruce Crower, fresh

water is injected into thecylinder after the exhauststroke, and is quickly turnedto superheated steam,which causes the water to

expand to 1600 times itsvolume and forces thepiston down for anadditional stroke.

http://en.wikipedia.org/w/index.php?title=Bruce_Crower&action=edit&redlink=1http://en.wikipedia.org/wiki/Steamhttp://en.wikipedia.org/wiki/Steamhttp://en.wikipedia.org/w/index.php?title=Bruce_Crower&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Bruce_Crower&action=edit&redlink=1http://en.wikipedia.org/w/index.php?title=Bruce_Crower&action=edit&redlink=1

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VELOZETA SIX STROKE ENGINE: The first four strokes are

the same as a four strokeinternal combustion

engine . After the exhauststroke, instead of air/fuelmixture ( as in case ofpetrol engines) fresh air issucked into the cylinderfrom the air filter, andwhich is removed duringthe sixth stroke.

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Comparison of P-V Diagram of four stroke and

six stroke engine :

Graph 1: Otto cycle

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Graph 2:Dual cycle

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ADVANTAGES: Thermal efficiency reaching 50%. (30% for the actual

internal combustion engines)

Fuel consumption reduced by more than 40%.

Reduction of chemical, noise and thermal pollution.

Two expansions (work) through six strokes.

Direct injection and optimal fuel combustion at everyengine speed.

Multiple fuel, etc...

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FUTURE SCOPE:

Motorboats (inboard and outboard engines) mightoffer a big outlet for this type of engine.

It tends to imagine us the 18tn wheeler truck with lightweight radiator

Using non-fossil fuels of vegetable origin, naturalgases and others, in motor-pumps, generator sets,

stationary engines, etc....intended for agriculture andindustry.

Many more applications may also be envisaged.

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CONCLUSION:

Billions of explosion engines are runningworldwide at this time, and this era is not about to end.It is commercially obvious that the big market is for

automobile, heavy goods, construction-site and farmvehicles.When six stroke engine is going to used in

automobile sector it will lead to a revolution in the

history of automotive industry. This is a priority for thesix-stroke engine

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