Engine crankcase vacuum check valve system for internal combusti

Details Engine crankcase vacuum check valve system for internal combusti Engine crankcase vacuum check valve system for internal combusti

1986-09-02

1988-08-02

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123572, F02M 2506

Patent

active

047608331

ABSTRACT:
In a conventional internal combustion engine, an improved mechanism for removing blowby vapors from the crankcase to minimize the build up of sludge, gum, varnish and other contaminates that adversely affect engine performance. The improved mechanism operates in an essentially "sealed system" mode to maintain a usable vacuum force on the crankcase without a need for introducing atmospheric air into the system.

REFERENCES:
patent: 3077871 (1963-02-01), Daigh
patent: 3237617 (1966-03-01), Daigh
patent: 3589347 (1971-06-01), Sawada

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