The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2006
Filed:
Apr. 19, 2004
Günter Feyerl, Alsdorf, DE;
Hans Kemper, Aachen, DE;
Christian Boie, Aachen, DE;
Lukas Wagener, Herzogenrath, DE;
Günter Feyerl, Alsdorf, DE;
Hans Kemper, Aachen, DE;
Christian Boie, Aachen, DE;
Lukas Wagener, Herzogenrath, DE;
FEV Motorentechnik GmbH, Aachen, DE;
Abstract
An electromagnetic actuator for actuating a gas-reversing valve on a piston internal combustion engine includes two electromagnets. Each electromagnet includes a one yoke body presenting a pole face. The pole faces of the two electromagnets face each other at a distance. Each yoke body has two parallel grooves that are open toward the pole face and form a coil window with a coil disposed in the coil window. An armature is arranged to move back and forth between the pole faces counter to the force of at least one restoring spring. The two electromagnets each have a different load profile.