Emission control valve with internal spring

Details Emission control valve with internal spring Emission control valve with internal spring

1988-08-29

1990-03-06

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

13754315, F02M 2506

Patent

active

049056565

ABSTRACT:
A gas flow control valve for engine crankcase emissions includes an enclosure and a hollow valve element which is supported on a rod to permit sliding movements in response to a balance of forces produced by gas pressure and a closing spring located within the hollow control valve element. Vanes straighten gas flow to prevent oscillation and rotation of the valve element.

REFERENCES:
patent: 2809660 (1957-10-01), Becker
patent: 3359960 (1967-12-01), Pittsley
patent: 3659573 (1972-05-01), Bennett
patent: 3661128 (1972-03-01), Eshelman
patent: 3662724 (1972-03-01), Ohar et al.

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