Fuel-air control device

Details Fuel-air control device Fuel-air control device

1977-12-19

1980-01-15

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123124B, 123106, F02M 2506

Patent

active

041833368

ABSTRACT:
The invention concerns a device for controlling the vehicles fuel-air mixture by regulating the air in the ventilation passage leading to the engine air intake from the crankcase. In a vehicle provided with a PCV valve, the device is located in the ventilation passage leading from the crankcase to the engine air intake and the device is downstream of the PCV valve. The device admits outside air to the ventilation passage to lean the gas mixture when the engine is operating at normal highway speeds or under load conditions and shuts off this flow of outside air as when the engine is running at low speeds or idling when the gas mixture need not be leaned.

REFERENCES:
patent: 1813719 (1931-07-01), White
patent: 2035237 (1936-03-01), Kushinsky
patent: 2386340 (1945-10-01), Olson
patent: 2886020 (1959-05-01), Wolfe
patent: 3043286 (1962-07-01), Blomberg
patent: 3787037 (1974-01-01), Motooka
patent: 3923024 (1975-12-01), Dabrio
patent: 4094292 (1978-06-01), Takagi

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