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:
Jan. 04, 2005
Filed:
Jun. 07, 2000
Alexander Von Gaisberg, Beilstein, DE;
Dirk Strubel, Stuttgart, DE;
Alexander Von Gaisberg, Beilstein, DE;
Dirk Strubel, Stuttgart, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
An electromagnetic actuator includes two electromagnets spaced apart from one another, an armature that is movable back and forth by magnetic force between the electromagnets against the force of two respectively counteracting springs, and setting means for adjusting the actuator to have a low energy requirement. To this end, the springs are pre-stressed such that the same energy is stored in both springs in connection with a maximum compression of the springs corresponding to the maximum stroke travel distance of the armature. The actuator is useful for actuating a valve to control the gas exchange in an internal combustion machine.