Rotary piston engines

Details Rotary piston engines Rotary piston engines

1975-01-16

1976-08-24

Croyle, Carlton R.

Internal-combustion engines

Combined devices

Generating plants

F02B 5310

Patent

active

039760367

ABSTRACT:
A rotary piston type internal combustion engine comprising a casing which includes a rotor housing having cavity defined by a trochoidal inner peripheral wall having a major and a minor axes, and a pair of side housings sealingly secured to the opposite sides of the rotor housing, a substantially polygonal rotor disposed in said cavity for rotation with apices in sliding contact with the inner peripheral wall of the rotor housing to define working chambers of variable volume with the trochoidal inner peripheral wall of the casing, said casing having an air intake port and an exhaust port, a primary combustion chamber disposed outside the cavity in the casing, a communication passage connecting the primary combustion chamber with the cavity in the casing, a fuel injection nozzle provided in said primary combustion chamber, and an ignition plug provided in said primary combustion chamber, said primary combustion chamber having a volume which is 35 to 65 percent of the sum of volume of the primary combustion chamber and that of one of the working chambers in the most compressed position, said communication passage opening to the casing cavity at a position between 15.degree. before and 30.degree. after the minor axis of the rotor housing, said fuel nozzle being adapted to provide air-fuel mixture having air-fuel ratio of 10 to 16 in the primary combustion chamber and overall air-fuel ratio of 19 to 46 in the primary combustion chamber and the working chamber communicating therewith.

REFERENCES:
patent: 2113711 (1938-04-01), Ricardo
patent: 2379190 (1945-06-01), Sanders
patent: 3391677 (1968-07-01), Hejj
patent: 3508530 (1970-04-01), Clawson
patent: 3861361 (1975-01-01), Klomp et al.

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