25-08-2017, 09:32 PM
6 STROKE PETROL ENGINE
6 stroke engine.ppt (Size: 2.79 MB / Downloads: 47)
Introduction
Nikolaus August Otto first designed what is known as the Otto engine or simply the 4 stroke internal combustion engine. Conversion of heat energy liberated by the combustion of the fuel into mechanical energy which rotated the crankshaft was the basic principle of this engine. The 4 stroke engine worked on the principle of the Otto cycle .The 4 stroke engine comprises of the intake stroke, compression stroke, power stroke and finally the exhaust stroke. Fuel was injected in the intake stroke and power from the fuel was derived in the 3rd stroke.
Crower six stroke engine.
In a six-stroke engine patented in the U.S. by Bruce Crower, after the exhaust stroke, fresh water is injected into the cylinder, and is quickly turned to superheated steam, which causes the water to expand to 1600 times its volume and forces the piston down for an additional stroke.
This design also claims to reduce fuel consumption by 40%.
Crower's six stroke engine features:-
· No cooling system required
· Improves a typical engine’s fuel consumption
· Requires a supply of distilled water to act as the medium for the second power stroke.
Beare Head Six Stroke engine.
This engine simply replaces the conventional Four Stroke Engines Cylinder Head. The manufacturers Four Stroke bottom end remains unchanged
The net result is:
Power/torque increases of 35%.
Simpler and less expensive manufacturing and tooling
Reduction of cylinder head reciprocating parts
Lower maintenance costs due to less wearing parts
2nd stroke
The inlet valve closes and the heating chamber valve opens. The piston moves upwards due to cranking forcing the pure air into heating chamber. The air at this stage is converted to high pressure.