HEATED PCV VALVE AND HOSE ASSEMBLIES

WIPO Patent Application WO2003021087

A9

A PCV valve assembly including (12) housing having a fluid inlet (14) and outlet. (16) A poppet valve (24) is disposed in the housing (12) between the fluid inlet (14) and outlet (16) and is moveable in an axial direction between a plurality of positions. A heating element (20) having a positive temperature coefficient material is supported in the housing in proximity to at least a portion of the valve for automatically heating the valve in response to a given voltage. The material produces a first heat in response to a first temperature and the given voltage. That is, the positive temperature coefficient material automatically regulates the flow of current and the temperature produced without the need of a theffilostat in response to the same voltage. A hose may also be used defining an air passageway and having a length is connected between the fluid outlet and an intake manifold respectively at first and second connections. The hose has a heating element arranged substantially along the length for applying heat to the bare passageway. In this manner, air entering the intake manifold in proximity to the throttle blade is heated to maintain a higher temperature to prevent blade icing.

PRIEMER DONALD LAVERN (US)
GRAICHEN BRIAN (US)
WADE TIM (US)
HENIGE NEIL P (US)
KARGULA CHRISTOPHER (US)
VAUGHAN RICHARD J (US)
WHITE TOM (US)

PCT/US2002/027697

April 29, 2004

August 29, 2002

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COOPER TECHNOLOGY SERVICES LLC (US)
PRIEMER DONALD LAVERN (US)
GRAICHEN BRIAN (US)
WADE TIM (US)
HENIGE NEIL P (US)
KARGULA CHRISTOPHER (US)
VAUGHAN RICHARD J (US)
WHITE TOM (US)

F01M13/00; F01M13/04; (IPC1-7): F01M13/04

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