Electromagnetic actuator for operating a cylinder valve of an internal combustion engine

US6502534B2 · kind B2 · utility

Assignee

• FEV MOTORENTECHNIK GMBH · DE

Inventors

• Gunter Feyerl · Alsdorf, DE
• Michael Schebitz · Attendorn, DE
• Hans-Peter Schmitt · Neckargemünd, DE
• Lutz Fischer · Bonn, DE

Key dates

• Filing date: Apr 16, 2001
• Grant date: Jan 7, 2003
• Expiry date: Apr 16, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L9/20
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An electromagnetic actuator for operating a cylinder valve in an internal combustion engine includes first and second housings secured to one another. Each housing has a cavity and a through bore extending therefrom. First and second electromagnets are disposed in the cavity of the respective housings. Each electromagnet has a yoke, a coil and a pole face. The pole faces are oriented toward and spaced from one another, and a reciprocating armature is disposed between the pole faces. A spring which urges the armature away from the first electromagnet has an end oriented away from the armature. A support cap is axially insertable in the through bore of the first electromagnet and includes a cap base having an inner face supporting the spring end. A locking arrangement secures the support cap to the housing and has a component axially insertable in the through bore with the support cap.