Patent · US Active

Control valve for a device changing the control times of an internal combustion engine

US7533695B2 · kind B2 · utility

19Cited by

8References

7Claims

0Family size

Assignee

Ina Schaeffler KG · DE

Inventors

Andreas Strauss · Forchheim, DE
Andreas Rohr · Idar-Oberstein, DE
Jens Hoppe · Erlangen, DE

Key dates

Filing date	May 12, 2005
Grant date	May 19, 2009
Priority date	—
Expiry date	Dec 27, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86702
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A control valve for a device for changing the control times of an internal combustion engine, having a substantially hollow-cylindrical valve housing, a control piston which is arranged within the valve housing and can be displaced axially, a pressure medium connection, two operating connections, and at least one tank connection. The operating connections, the pressure medium connection and the tank connection are formed as radial connections. It is possible for the operating connections to be connected to the pressure medium connection and the tank connection by axial displacement of the control piston within the valve housing. The operating connections are arranged adjacently.

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