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:
Jul. 02, 2002
Filed:
Nov. 03, 2000
Josef Guentert, Gerlingen, DE;
Hans-Juergen Simon, Bad Liebenzell, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a radial piston pump with a drive shaft supported in a pump housing and preferably with a number of pistons, each in its own cylinder chamber, arranged radially with regard to the drive shaft, and with a plate attached to the ends of these cylinders oriented toward the drive shaft, which plate has a blind hole in its center for receiving the end of the associated piston, wherein on its circumference, the piston has a groove into which a snap ring is inserted in order to fasten a plate retainer to the piston, which holds the plate on the piston, which is characterized in that at the rim of the blind hole in the plate, a cylindrical recess is produced, wherein the diameter of the cylindrical recess is dimensioned so that the play between the snap ring and the circumference of the cylindrical recess is smaller than the depth of the groove.