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. 28, 2002
Filed:
Feb. 09, 2001
Alexander von Gaisberg, Fellbach, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a device for operating a gas exchange valve with a hydraulic play compensating element of an internal combustion engine, which device includes an electromagnetic actuator having spaced valve opening and valve closing magnets between which an armature is movably supported for operating the gas exchange valve and wherein the valve is biased in a valve closing direction by a valve closing spring and in a valve opening direction by a valve opening spring which together form a valve oscillation structure having an equilibrium position in which the armature which is operatively connected to the valve is essentially disposed centrally between the magnets, the opening spring has a steeper spring force characteristic line and a lower pre-stress value than the closing spring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile