Temperature-controlled PCV valve

Details Temperature-controlled PCV valve Temperature-controlled PCV valve

2008-01-08

2008-01-08

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

C251S011000

Reexamination Certificate

active

07316227

ABSTRACT:
A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from an engine crankcase to an intake manifold in a vehicle. The valve also includes a temperature-activated element for moving the flow restrictor in the orifice.

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Prior Art Toyota Motor Sales, U.S.A., Inc. Brochure, “Emission Sub Systems—Positive Crankcase Ventilation System,” pp. 1-5, date unknown.

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