Temperature-controlled PCV valve

Details Temperature-controlled PCV valve Temperature-controlled PCV valve

2006-03-28

2006-03-28

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

C137S468000, C137S907000

Reexamination Certificate

active

07017564

ABSTRACT:
A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from a crankcase to an intake manifold in a vehicle. The valve also includes a wax motor 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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