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.

Date of Patent:
Mar. 27, 2001

Filed:

Jul. 30, 1999
Applicant:
Inventors:

Dieter Maisch, Riederich, DE;

Dieter Tischer, Wendlingen, DE;

Alfred Trzmiel, Gratenbery, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 9/04 ;
U.S. Cl.
CPC ...
F01L 9/04 ;
Abstract

A damping device for an electromagnetic valve control of an internal combustion engine has a pressure chamber, a hydraulic supply line communicating with a first pressure chamber and supplying the pressure chamber with a hydraulic medium. A damping piston is positioned at one side of the pressure chamber and is moveable relative to the pressure chamber. A moveable mass acts on the damping piston. When the damping piston is moved in a first direction by the moveable mass from a rest position into the first pressure chamber, the hydraulic medium is initially displaced from the pressure chamber into the hydraulic supply line until the hydraulic supply line is closed off by the damping piston and a hydraulic pressure is generated in the pressure chamber to create a force acting counter to the movement of the moveable mass.


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