Hydraulic machine with lubricated rotating spool

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12152586
APP PUB NO 20230313793A1
SERIAL NO

18206304

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A hydraulic machine (1) has a working section (6) and a fluid control section (28). The fluid control section includes a spool (3) that is rotatable in a cylindrical bore (30) about an axis (4). A distributor plate (18) extends intermediate of the control section and the working section. The spool includes an axial recess (10) which is axially bounded by a radially extending annular wall (44). A front face (48) of the annular wall rotates in abutting engagement with a plate face contact area (50) of the distributor plate. Hydraulic fluid flows through at least one groove (52) that extends radially and circumferentially across the abutting areas of the spool and the distributor plate to provide lubrication and heat absorption.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
WHITE DRIVE MOTORS AND STEERING SP Z O O55-040 BIELANY WROCLAWSKIE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mrowczynski, Adam Kobierzyce, PL 1 1

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