Apparatus for regulating the operation of an adjusting device

US6158404A · kind A · utility

Assignee

• Aft Atlas Fahrzeugtechnik GmbH · DE

Inventors

• Dirk Neubauer · Altena, DE
• Dirk Heintzen · Hagen, DE
• Helmut Schilly · Bergneustadt, DE
• Harald Schmitz · Weinheim, DE

Key dates

• Filing date: Feb 17, 1998
• Grant date: Dec 12, 2000
• Expiry date: Feb 17, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2102
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The phase of a camshaft in an internal combustion engine can be changed by the piston rod of a double-acting hydraulic cylinder and piston unit which is controlled by a valve having a spool movable axially by an electromagnet which is adapted to be influenced by a plurality of signals including those from the engine electronics.