Pressure-regulator servovalve with reduced leakage rate

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United States of America Patent

PATENT NO 8418722
APP PUB NO 20060021663A1
SERIAL NO

11187999

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a pressure-regulator servo-valve comprising a body having a utilization port, a pressure feed port, and a return port, a distributor spool movably mounted in the body to put the utilization port into communication either with the feed port or with the return port, the spool co-operating with the body to define at least one pilot chamber connected to a nozzle that is arranged to open out into a cavity connected to the return port, a vane extending in the cavity facing the nozzle and being mounted to be moved in controlled manner. According to the invention, the pilot chamber is connected to the utilization port.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SAFRAN AEROSYSTEMS61 RUE PIERRE CURIE 78370 PLAISIR 78370

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grancher, Raymond Lailly en Val, FR 2 7

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