Patent · US Active

Electrohydraulic valve controller

US8726860B2 · kind B2 · utility

0Cited by

1References

5Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Andreas Kufner · Erlangen, DE
Michael Berger · Erlangen, DE
Calin Petru Itoafa · Hochstädt, DE

Key dates

Filing date	Jun 1, 2011
Grant date	May 20, 2014
Priority date	—
Expiry date	Nov 1, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L9/14
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electrohydraulic valve controller for variable actuation of a gas exchange valve of an internal combustion engine. The electrohydraulic valve controller has a first hydraulic valve and, for the purpose of providing an emergency running capability, a second hydraulic valve.

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