Pressure regulating valve for aircraft engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8578967
APP PUB NO 20100187451A1
SERIAL NO

12361771

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The fluid pressure regulating valve is for use in an aircraft engine. The valve has at least a first fluid inlet, a first fluid outlet and a second fluid outlet. The valve comprises: a valve housing having a first valve spool interior cavity; a first fluid path within the valve housing from the fluid inlet to the first fluid outlet; a second fluid path within the valve housing from the fluid inlet to the second fluid outlet; a first valve spool mounted for reciprocal motion within the first valve spool cavity between a first position and a second position, the first valve spool having a second valve spool interior cavity and being spring-biased to its first position; and a second valve spool mounted for reciprocal motion within the second valve spool cavity between a first position and a second position, the second valve spool being spring-biased to its first position, the second valve spool closing the first fluid path at its second position when the first valve spool is substantially at its first position.

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First Claim

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Patent Owner(s)

  • PRATT & WHITNEY CANADA CORP.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blais, Daniel St-Jean-sur-Richelieu, CA 17 134
Fortier, Stephane Chambly, CA 8 262
Vinski, Johnny Chateauguay, CA 21 123

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