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:
Nov. 20, 2001
Filed:
Jun. 17, 1999
Walter Speil, Ingolstadt, DE;
Ina Walzlager Schaeffler oHG, , DE;
Abstract
A tappet (,) with a hydraulic clearance compensation element (,), a positive opening of a one-way valve (,) being effected during a base circle region &agr; of the contacting cam (,) whereby a closing member (,) of the one-way valve (,) is loaded by an adjusting element (,), the adjusting element (,) extends through a bottom (,) of the tappet (,) and cooperates with a groove (,) on the outer peripheral surface (,) of the cam (,), the groove (,) extends over the entire periphery of the cam (,) with the exception of its base circle region so that when the base circle region &agr; comes to be situated opposite the bottom (,), a positive opening of the closing member (,) is effected whereby no undesired relieving of the gas exchange valve actuated by the tappet (,) nor its opening due to a transmission of undesired opening movements from the cam (,) to the clearance compensation element (,) can occur in the base circle region &agr; of the cam (,).