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. 25, 2022
Filed:
Feb. 01, 2018
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Norbert Geyer, Hochstadt, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A roller tappet, in particular for a high-pressure fuel pump, is provided that is guided in the direction of the longitudinal axis thereof in a housing receptacle and is driven translatably in the longitudinal direction by cams of a camshaft. The roller tappet has a tappet body. This tappet body has a tappet skirt, a pump piston contact point (), and a rotatably mounted roller (), by which the roller tappet is supported on the camshaft. The tappet body has a guide cylinder (), which is mounted in the housing receptacle and on which the roller () is supported, and a cup-shaped sleeve () having the pump piston contact point (), which cup-shaped sleeve is supported in the guide cylinder () by a radial ring (). A cylindrical constriction () is formed in the guide cylinder () in the region of the radial ring support.