Internal combustion engine

Details Internal combustion engine Internal combustion engine

1974-10-10

1976-11-30

Burns, Wendell E.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 32ST, 123 75B, 123127, 261 23A, F02D 3100

Patent

active

039942686

ABSTRACT:
An internal combustion spark ignition piston engine has a main combustion chamber and an auxiliary combustion chamber connected by a torch opening. A main carburetor supplies a lean mixture to the main combustion chamber and an auxiliary carburetor supplies a rich mixture to the auxiliary combustion chamber. A fixed orifice is provided in the auxiliary carburetor, instead of a movable throttle valve, the orifice being smaller than the torch opening but large enough to allow air flow at subsonic velocities when the engine is operated under idle conditions. A throttle valve in the main carburetor controls the speed of the engine but the fixed orifice limits the amount of rich mixture supplied to the engine. A fuel compensator system is provided for each of the carburetors to control the air-fuel ratio of the mixture produced by each, in response to engine operating conditions, including idling, high power and deceleration.

REFERENCES:
patent: 3124113 (1964-03-01), May et al.
patent: 3548792 (1970-12-01), Palmer
patent: 3549133 (1970-12-01), Frankowski et al.
patent: 3588058 (1971-06-01), Lucas
patent: 3677241 (1972-07-01), Gele et al.
patent: 3761063 (1973-09-01), Shibanatia et al.
patent: 3842810 (1974-10-01), Yagi et al.
patent: 3878826 (1975-04-01), Date et al.
patent: 3884197 (1975-05-01), Miyaki et al.

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