Supplemental air valve for internal combustion engine

Details Supplemental air valve for internal combustion engine Supplemental air valve for internal combustion engine

1986-08-25

1987-12-29

Cuchlinski, Jr., William A.

Internal-combustion engines

Charge forming device

Auxiliary air or oxygen added to combustible mixture

137480, F02M12304

Patent

active

047153512

ABSTRACT:
An air metering valve or supplemental air valve connectable in the PCV system of an internal combustion engine having a shiftable valving member which regulates the quantity of supplemental air introduced into the PCV return. The valve spool is spring biased to the open position by a calibration spring. Pressure chambers are formed on opposite side of the actuating piston and connectable to engine vacuum sources. As the degree of vacuum varies in the vacuum sources, the valve spool shifts between an open and closed position. The valve may also be used to provide supplemental ambient combustion air under vacuum control independent of the PCV system.

REFERENCES:
patent: 3494339 (1970-02-01), Fernandez et al.
patent: 3809035 (1974-05-01), Winton
patent: 3946710 (1976-03-01), Albano et al.
patent: 3967605 (1976-07-01), Dolfi, Sr.
patent: 4210113 (1980-07-01), Heffernan

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