Six stroke-engine-presenation-by vijay b r
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Transcript of Six stroke-engine-presenation-by vijay b r
SIX STROKE ENGINESIX STROKE ENGINE
PREPARED BY:-PREPARED BY:-VIJAY B.RVIJAY B.R
NANDI INSTITUTE OF TECHNOLOGY NANDI INSTITUTE OF TECHNOLOGY AND MANAGEMENT SCIENCESAND MANAGEMENT SCIENCES
1AU11ME0201AU11ME020B.E(Mechanical Engineering)B.E(Mechanical Engineering)
CONTENTS
Introduction How six stroke engine works Working principle Gallery Video Comparison of six stroke engine with four stroke
engine Graphs Advantages and disadvantages applications Conclusion references
Introduction
Malcolm beare built an innovative hybrid design of the I C engine, by combining a two stroke with a four stroke engine.
The Beare Head is a new type of four stroke engine head design known as the “Beare Head”.
The Beare Head uses a piston and ports very much like a two stroke engine to replace the over head valve system that is found in four stroke engines today. The four stroke block, pistons and crankshaft remain unaltered. This combination of two stroke and four stroke technology has given the engine its name – the “six stroke engine” (2 + 4 = 6).
process involved in the engine
•1st stroke (suction stroke)•2nd stroke (compression stroke)•3rd stroke (1st power stroke)•4th stroke (exhaust stroke)•5th stroke (2nd power stroke)•6th stroke (2nd exhaust stroke)
1 INTAKE VALVE2 HEATING CHAMBER VALVE3 COMBUSTION CHAMBER VALVE4 EXHAUST VALVE5 CYLINDER6 COMBUSTION CHAMBER 7 AIR HEATING CHAMBER VALVE8 WALL OF COMBUSTION CHAMBER9 FUEL INJECTERHEATING PLUG
WORKING PRINCIPLE
1st STROKE Intake of pure air in the
cylinder (suction stroke)
2nd STROKE Compression of pure air
in heating chamber (compression stroke)
3rd STROKE
Release the combustion gases in the cylinder (1st power stroke)
4th STROKE
Recompression of pure air in the combustion (exhaust stroke)
5th STROKE
Release of pure air into the cylinder (2nd power stroke)
6th STROKE
Exhaust of combustion gases (2nd exhaust stroke)
SIX STOKE ENGINE
6 stroke used in DUCATI
Comparison Of Six Stroke Engine With Four Stroke Engine
Advantages
1) Thermal efficiency reaching 50%.
2) Fuel consumption reduced by more than 40%.
3) Reduction of chemical, noise, thermal pollution, Less friction –so, less
ware and tear.
4) Cost is economical compare to 4 stroke engine.
5) optimal fuel combustion at every engine speed so Overall efficiency is
higher.
Advantages
7) Due to more air intake, the cooling system is improved.
8) It does not require basic modification to the existing engine, all
technological and production methods remain unaltered.
9) Less inertia due to lightness of moving parts.
10) Multifuels (diesel, L.P.G, petrol & Methanol-petrol mixture etc.)
Dis advantages
Engine size increases due to many number of cylinders & additional
components.
Break power & indicated power per cycle per cylinder is
comparatively lesser.
Applications
Perfectly suitable for Motorboats.
Motor –pumps ,stationary engines & generators, in
agriculture and industry field.
Heavy goods, automobiles & farm vehicles.
Many more applications may also be envisaged.
Conclusion
In a six stroke engine the energy absorption is less because of slower acceleration of reciprocating parts.
In the Beare design, per single cylinder, the number of parts is 15 compared to a four stroke of approx, 40 to 50 parts. Also, to reduce manufacturing costs is less
Increased torque and power output. The bottom piston is a standard design and the Beare Head bolts
directly onto the engine block.
Better fuel economy and cleaner burning longer service intervals and considerably reduced tooling costs when compared with a conventional fourstroke design.
For normal sixstroke car engine mileage for 45 liter is 100km.
In four stroke engine for every 2 complete rotation of crank shaft fuel ignition takes place, but in sixstroke fuel ignition takes place for every 3 complete rotation of crank shaft.
References
American Griffin Engine". Smokstak.com. 20140207., linked photos and period diagrams British Stationary Engines. p. 83. surviving Griffin engine returns home to Bath museum". Culture24.org.uk. April 15, 2007. Retrieved 20140207. "The Bajulaz Cycle: a TwoChamber Internal Combustion Engine with Increased Thermal Efficiency". SAE Technical Paper Series (Feb., 1986,): 1–10. No. 860534. "A brilliant sixstroke from techies". 14 February 2007. Archived from the original on 22 February 2013. Retrieved 8 May [email protected]. "A new Engine generation is born KottmannMotorTeam SixStrokeEngine. Sechstaktmotor.de. Retrieved 20140131.
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