6 Stroke Petrol Engine

Topics: Internal combustion engine, Diesel engine, Combustion Pages: 4 (1135 words) Published: March 2, 2011
The majority of the actual internal combustion engines, operating on different cycles have one common feature, combustion occurring in the cylinder after each compression, resulting in gas expansion that acts directly on the piston (work) and limited to 180 degrees of crankshaft angle. According to its mechanical design, the six-stroke engine with external and internal combustion and double flow is similar to the actual internal reciprocating combustion engine. However, it differentiates itself entirely, due to its thermodynamic cycle and a modified cylinder head with two supplementary chambers: a combustion and an air heating chamber, both independent from the cylinder. Combustion, does not occur within the cylinder but in the supplementary combustion chamber, doesnot act immediately on the piston, and it's duration is independent from the 180 degrees of crankshaft rotation that occurs during the expansion of the combustion gases (work). The combustion chamber is totally enclosed within the air-heating chamber. By heat exchange through the glowing combustion chamber walls, air pressure in the heating chamber increases and generate power for an a supplementary work stroke. Several advantages result from this, one very important being the increase in thermal efficiency. In the contemporary internal combustion engine, the necessary cooling of the combustion chamber walls generate important calorific losses. The six-stroke engine has the following 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 every engine speed.  
    •    Multiple fuel, etc....
Cars equipped with the six-stroke engine will have fuel...
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