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:
Nov. 28, 2017
Filed:
Feb. 01, 2013
Continental Teves Ag & Co. Ohg, Frankfurt, DE;
Stephan Krebs, Eschborn, DE;
Jens Bacher, Frankfurt am Main, DE;
Heinrich Kreh, Florstadt, DE;
Lazar Milisic, Kelkheim/Taunus, DE;
Michael Jürging, Kelkheim, DE;
Marcel Niepenberg, Erzhausen, DE;
Jose Gonzalez, Bad Oeynhausen, DE;
Karlheinz Seitz, Lorsch, DE;
Hans-Michael Koppel, Frankfurt, DE;
Falk Petzold, Frankfurt am Main, DE;
Rolf Fellinger, Dreikirchen, DE;
Stefan Imhof, Oberursel, DE;
Thomas Oeffner, Karben, DE;
Paul Wiebe, Büttelborn, DE;
Manfred Rüffer, Sulzbach, DE;
Continental Teves AG & Co. oHG, Frankfurt, DE;
Abstract
The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.