Induction and exhaust apparatus for piston machines

Details Induction and exhaust apparatus for piston machines Induction and exhaust apparatus for piston machines

1976-03-05

1977-08-16

Cohen, Irwin C.

Motors: expansible chamber type

Cyclically operable

Relatively movable inlet and exhaust valves

91450, 123 53R, 123 80R, 123190A, 13762521, F01L 3302, F15B 1304

Patent

active

040418375

ABSTRACT:
The four strokes of a piston in an internal combustion engine are sequentially controlled by two rotary valves, each including a housing and a triangularly shaped rotor mounted in the housing for epitrochoidal movement. The rotor defines three chambers in the housing and a duct connects respective ports in the housing of each valve to the working chamber of an engine cylinder. The engine drive shaft is so synchronized with the rotary movement of the rotors that, for each complete stroke, one chamber in the housings is in communication with the cylinder chamber through the duct, while the intake and exhaust ports in the housing of the first valve are selectively in and out of communication with the one chamber. A surface of the rotors is exposed to gases coming from the cylinder chamber during the power stroke so that these gases contribute to the rotary movement of the rotors.

REFERENCES:
patent: 973800 (1910-10-01), McKinnon
patent: 2183024 (1939-12-01), Large
patent: 2907349 (1959-10-01), White
patent: 3382849 (1968-05-01), Chaude
patent: 3405692 (1968-10-01), Paschke
patent: 3875967 (1975-04-01), DEFries
patent: 3893483 (1975-07-01), Ackerman
patent: 3896781 (1975-07-01), Smith
patent: 3945364 (1976-03-01), Cook

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