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:
Dec. 12, 2006
Filed:
Dec. 03, 2004
Markus Duesmann, Stolberg, DE;
Markus Duesmann, Stolberg, DE;
Fev Motorentechnik GmbH, Aachen, DE;
Abstract
The invention relates to a mechanical valve play compensation element for a valve drive on a piston combustion engine, comprising a first pressure part () which is axially displaceable in relation to a second pressure part () and which is fixed in such a way that it can turn about the axis of displacement; a torsion spring element () which acts between the first pressure part () and the second pressure part () and is axially flexible at least to a certain extent; and at least one helical surface () on the first pressure part (), to which a corresponding helical surface () on the second pressure part () is allocated, these forming a pair of helical surfaces (). The surfaces of the helical surface pair () are configured as a rough surface and are pressed against each other by the torsion spring element ().