Stage combustion rotary engine

Details Stage combustion rotary engine Stage combustion rotary engine

1995-08-14

1997-01-28

Koczo, Michael

Internal-combustion engines

Rotary

With transfer means intermediate single compression volume...

418258, F02B 5300

Patent

active

055969631

ABSTRACT:
An engine having one stage of combustion between a rotary compressor and a rotary motor, and another stage of combustion within the motor, includes compressor and motor vane rotors that rotate in respective housing portions on a common drive shaft; first and second transfer passages fluid connected between respective exhaust ports of the compressor and intake ports of the motor, first and second combustion chambers being formed within the respective transfer passages, the combustion chambers being periodically sequentially pressurized by gas flow from the compressor exhaust ports. First and third cam-actuated poppet valves in the first and second transfer passages prevent upstream gas flow from the respective combustion chambers into the compressor. Second and fourth cam-actuated poppet valves in the first and second transfer passages prevent upstream gas flow from the motor into the respective combustion chambers. An alternating sequence of gas flow in the transfer passages and combustion in the combustion chambers is supportable by operation of the first and second valves and of the third and fourth valves in complementary half-revolutions of the first and second rotors, combustion occurring during expansion of gas from the combustion chamber into the expansion chamber, wherein the output shaft is powered by combustion in the combustion chambers and further by combustion in the expansion chamber.

REFERENCES:
patent: 680478 (1901-08-01), English et al.
patent: 939751 (1909-11-01), Schulz
patent: 1385619 (1921-07-01), Henry
patent: 1864406 (1932-06-01), Christ

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