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:
Oct. 03, 1995
Filed:
Jan. 18, 1994
Harald Elendt, Wilhelmsdorf, DE;
Christof Faria, Herzogenaurach, DE;
Gerald Fischer, Hochstadt/Aisch, DE;
Michael Haas, Aurachtal, DE;
Gerhard Maas, Herzogenaurach, DE;
Ina Walzlager Schaeffler KG, , DE;
Abstract
A tappet (1) for a valve operating mechanism for an internal combustion engine comprising a thin-walled jacket (3) guided in a bore (5) of a cylinder head (6) and provided in the cam direction with a circular ring-shaped bottom (4) which surrounds a circular bottom (16) of a concentrically arranged guide sleeve (7) in whose bore (9) a clearance compensation element (10) is arranged for longitudinal displacement, the jacket (3) comprising the circular ring-shaped bottom (4) and the guide sleeve (7) comprising the circular bottom (16) being engageable by cams of differing pitch and relatively displaceable axially with respect to each other and with respect to the bore (5) of the cylinder head (6), and a first, central cam (14) of smaller pitch and at least one cam (15) of larger pitch selectively engaging the circular bottom (16) and the circular ring-shaped bottom (4) respectively, characterized in that means are arranged in the jacket (3) which prevent an axial rotation of the tappet (1) in the bore (5) of the cylinder head (6) and at the same time also prevent an axial rotation of the guide sleeve (7) which is arranged concentrically in the tappet (1) and in whose bore the clearance compensation element (10) is mounted for longitudinal displacement, at least one axially acting pressure spring (22) being arranged between the circular ring-shaped bottom (4) and a radial flange (12) which projects from the guide sleeve (7) and is guided on an inner peripheral surface (13) of the jacket (3).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile