Patent · US Active

Hydraulic valve for an internal combustion engine

US9366161B2 · kind B2 · utility

1Cited by

26References

22Claims

0Family size

Assignee

Hilite Germany GmbH · DE

Inventors

James Anthony Morehead · Mocksville, US
Matthew Bradfield · Whitehall, US
Daniel Stanhope · Nunica, US

Key dates

Filing date	Feb 13, 2014
Grant date	Jun 14, 2016
Priority date	—
Expiry date	Feb 13, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2001/34463
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A hydraulic valve for use with a lockable cam phaser. The hydraulic valve is configured to limit the flow of pressure medium to both the advance and retard chambers, while allowing a locking pin of the cam phaser to drain. The hydraulic valve effectively limits flow during the self-centering operation of the can phaser. This is important for the system function, since it allows the phaser to select a side (i.e., the advance or retard chamber) to bleed off, reducing pressure on that side, which allows the cam phaser to move towards the mid-park (i.e., locking) position.

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