Hydraulic valve for cam phaser

US9394809B2 · kind B2 · utility

Assignee

• Hilite Germany GmbH · DE

Inventors

• Erik Gruber · Marktheidenfeld, DE
• Michael Oppel · Brück, DE
• Juergen Goll · Collenberg, DE

Key dates

• Filing date: Feb 15, 2015
• Grant date: Jul 19, 2016
• Expiry date: Feb 15, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2001/34426
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A hydraulic valve for a cam phaser including a valve housing with a longitudinal axis and a valve piston that is axially moveable along the longitudinal axis, wherein the valve piston opens and closes a first operating connection of the valve housing and a second operating connection of the valve housing, wherein the first operating connection and the second operating connection are axially offset from one another; and a supply connection of the valve housing which is used for supplying the hydraulic valve with a hydraulic fluid fed by a feed device, wherein the hydraulic valve is configured to be flowed through by the hydraulic fluid on different paths controlled by a flow permeable channel system of the valve piston, and wherein a check valve opening and closing an inflow channel is arranged in the hydraulic valve in the inflow channel of the valve housing.