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:
Jan. 09, 2007
Filed:
Nov. 22, 2005
Georg Backert, Mühlhausen, DE;
Michael Dotterweich, Burgebrach, DE;
Matthias Reichel, Obertrubach, DE;
Georg Backert, Mühlhausen, DE;
Michael Dotterweich, Burgebrach, DE;
Matthias Reichel, Obertrubach, DE;
INA-Schaeffler KG, , DE;
Abstract
The invention relates to a cup tappet for an internal combustion engine, having a skirt which has a radial recess, into which an anti-rotation element () is inserted. The anti-rotation element protrudes from the skirt in the radial direction, in order to be accommodated in a corresponding groove of the cylinder head as an anti-rotation safeguard. According to the invention, the anti-rotation element () has an outer contour in longitudinal section with a head () and a stem (). The stem has a reduced dimension compared with the head () and a thickened portion (), and can be clipped into the recess of the skirt of the cup tappet under elastic deformation of the thickened portion (). In this way, an anti-rotation safeguard is possible which can be assembled particularly simply, can be manufactured cheaply and is reliable.