Coupling device for connecting an electromagnetic actuator with a component driven thereby

US6289858A · kind A · utility

Assignee

• FEV MOTORENTECHNIK GMBH · DE

Inventors

• Joachim Altdorf · Cologne, DE
• Michael Schebitz · Attendorn, DE
• Ernst-Siegfried Hartmann · Rösrath, DE
• Thomas Schwaderlapp · Dormagen, DE
• Jurgen Wahnschaffe · Bensberg, DE

Key dates

• Filing date: Feb 22, 2000
• Grant date: Sep 18, 2001
• Expiry date: Feb 22, 2020

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 driven component includes first and second electromagnets having respective first and second pole faces oriented toward one another and defining a space therebetween; an armature disposed in the space and movable back and forth between the first and second pole faces; a driving component attached to the armature for moving therewith as a unit; and a resetting spring assembly coupled to the armature and exerting forces opposing movements of the armature caused by electromagnetic forces generated by the electromagnets. The resetting spring assembly is in a relaxed state when the armature is in a mid position between the first and second pole faces. A coupling device connects the driving component with the driven component for effecting a transmission of pushing and pulling forces from the driving component to the driven component to cause displacements of the driven component as a function of displacements of the armature and the driving component. The coupling device includes a length-compensating arrangement between the driving and driven components.