Patent · US Active

Hydraulic valve and cam phaser

US9909463B2 · kind B2 · utility

3Cited by

2References

11Claims

0Family size

Assignee

Hilite Germany GmbH · DE

Inventors

Dietmar Schulze · Kandern, DE
Christian Scheibe · Kassel, DE

Key dates

Filing date	Sep 9, 2015
Grant date	Mar 6, 2018
Priority date	—
Expiry date	Dec 15, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2001/34426
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic valve for a cam phaser, the hydraulic valve including a bushing element, including a longitudinal channel, a pressure medium connection that is arranged at an end of the longitudinal channel, three hydraulic connections that originate from the longitudinal channel, and a pressure balanced hollow piston that is arranged axially moveable within the longitudinal channel, characterized in that the hydraulic valve includes a check valve at the pressure medium connection and a cam phaser including a stator and a rotor that is rotatable relative to the stator between a first end position and a second end position for adjusting a cam shaft of an internal combustion engine and a hydraulic valve for controlling a rotation of the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.