Internal combustion engine having multiple expansion and compres

Details Internal combustion engine having multiple expansion and compres Internal combustion engine having multiple expansion and compres

1989-12-07

1991-12-17

Wolfe, Willis R.

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

Fluid motor means is expansible chamber type with movable...

123 70R, 123560, 60620, F02B 3306

Patent

active

050725890

ABSTRACT:
A staged two-stroke internal combustion engine with reciprocating pistons wherein the cycle comprises a first compression of fresh air possibly followed by a cooling, a second compression of air or of mixture or the injection of fuel (Diesel version), a first expansion producing a useful work, a second expansion also producing a useful work and the exhaust of the combustible gases followed by the scavenging of the remaining gases by fresh air, the engine preferably including an odd number greater than or equal to three cylinders and allowing to increase the power output efficiency and the power-to-swept volume ratio with respect to the four-stroke internal combustion engine.

REFERENCES:
patent: 1325810 (1919-12-01), Sperry
patent: 1347087 (1920-07-01), Gernandt

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