Hydraulic valve and cam phaser

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9739182
APP PUB NO 20160230611A1
SERIAL NO

14833065

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Importance

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Abstract

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A hydraulic valve for a cam phaser including a pressure balanced hollow piston that is arranged axially movable, wherein the hollow piston at its end oriented towards the pressure medium connection includes a first piston section with a first small outer diameter, and adjacent to the first piston section a second piston section with a second large outer diameter, and a third piston section with a third medium outer diameter, wherein the hollow piston includes a respective pressure surface for pressure compensation at the first piston section and at the third piston section which are respectively loadable with an axial force that is oriented away from the pressure medium connection when the hollow piston is loaded with pressure, wherein a resultant force of the axial forces impacts the hollow piston, and another pressure surface is provided at the second piston section of the hollow piston.

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Patent Owner(s)

  • HILITE GERMANY GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schulze, Dietmar Muenzenberg, DE 57 157

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