Engine positive crankcase ventilation valve assembly

Details Engine positive crankcase ventilation valve assembly Engine positive crankcase ventilation valve assembly

1976-06-18

1977-11-01

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119EE, F02M 2506, F02F 900

Patent

active

040560856

ABSTRACT:
An automotive type internal combustion engine has a positive crankcase ventilation (PCV) valve metering the flow of engine blow-by gases and fumes from the engine crankcase to the intake manifold, the valve having a sonic flow passage providing flow over the entire part throttle operating range of the vehicle to provide a precise flow and predictable calibration of the flow.

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patent: 2407178 (1940-09-01), Roos
patent: 2423592 (1947-07-01), Foster
patent: 2639701 (1953-05-01), Bales
patent: 2829629 (1958-04-01), Badertscher et al.
patent: 2853986 (1958-09-01), Kolbe
patent: 3111138 (1963-11-01), Humphreys
patent: 3308798 (1967-03-01), Snider
patent: 3581721 (1971-06-01), Horiuchi
patent: 3645242 (1972-02-01), Horiuchi
patent: 3646925 (1972-03-01), Eshelman
patent: 3730160 (1963-05-01), Hughes
patent: 3753304 (1973-08-01), Hughes
patent: 3778038 (1973-12-01), Eversole et al.
patent: 3868936 (1975-03-01), Rivere

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