Hydraulic pump port plate with variable area metering notch

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United States of America Patent

PATENT NO 10227964
APP PUB NO 20170058876A1
SERIAL NO

14839128

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Abstract

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A port plate for a swashplate type axial piston pump is described herein. The port plate includes an inlet port, a discharge port, and a first metering notch in fluidic communication via a first passage with a metering notch area adjustment valve configured to adjust the effective area of the metering notch. The first metering notch is disposed at a leading edge of one of the inlet port or the discharge port.

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR INC100 NE ADAMS STREET PEORIA IL 61629-9510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Hongliu Naperville, US 29 299
Graf, Kevin J Chillicothe, US 5 46
Sun, Kaimei Peoria, US 2 4

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