Oil flow positive valve drive mechanism for gasoline engines

Details Oil flow positive valve drive mechanism for gasoline engines Oil flow positive valve drive mechanism for gasoline engines

1974-09-03

1976-06-15

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9013, F01L 902

Patent

active

039630064

ABSTRACT:
This invention provides a valve drive mechanism which positively opens and closes the valves of a gasoline engine at all speeds and provides a flow of cooling oil to the valves. Additionally this mechanism permits control of engine torque by delay of the closing of the engine intake valve and thus reduces the emmissions of oxides of nitrogen. This valve drive mechanism consists of oil pumps driving the valve open and closed via selector valves connecting to a hydraulic valve actuator.

REFERENCES:
patent: 1763154 (1930-06-01), Holzwarth
patent: 2602434 (1952-07-01), Barnaby
patent: 2615438 (1952-10-01), Tucker
patent: 3257999 (1966-06-01), Fiedler
patent: 3612015 (1971-10-01), Hausknecht

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