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. 15, 2013
Filed:
Sep. 08, 2006
Georg Sonnenschein, Eschborn, DE;
Georg Obersteiner, Idstein, DE;
Jurgen Uhlmer, Hosbach, DE;
Achim Possmann, Darmstadt, DE;
Andreas Hettrich, Bruchkobel, DE;
Georg Sonnenschein, Eschborn, DE;
Georg Obersteiner, Idstein, DE;
Jurgen Uhlmer, Hosbach, DE;
Achim Possmann, Darmstadt, DE;
Andreas Hettrich, Bruchkobel, DE;
Abstract
A piston pump for the hydraulic energy supply in a motor vehicle, comprising a piston that is movably arranged in a stepped bore of an accommodating member that is provided with a closure, the piston carries a seat for an elastic sealing element which accommodates the sealing element with axial play, and with radial elastic preload for the purpose of sealing between piston and cylinder. The seat for the sealing element has a structure which generates forces pointing radially towards a piston axis and expanding the sealing element in a radial direction, and that the structure produces an elastic deformation of the sealing element for an increased and dosed sealing contact pressure between piston and cylinder.