Fuel-air control device

Details Fuel-air control device Fuel-air control device

1979-08-29

1981-12-15

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123572, 123587, F02M 2506

Patent

active

043053696

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 creates a vacuum less than 8 PSI in the ventilation passage.

REFERENCES:
patent: 3809035 (1974-05-01), Winton
patent: 3923024 (1975-12-01), Dabrio
patent: 4183336 (1980-01-01), Norman

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