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. 14, 2020
Filed:
Mar. 31, 2016
Ebm-papst St. Georgen Gmbh & Co. KG, St. Georgen, DE;
Markus Braxmaier, Vs-Schwenningen, DE;
Hassan Ghodsi-Khameneh, Offenburg, DE;
Daniel Hauer, Ortenberg, DE;
Juergen Herr, St. Georgen, DE;
Marc Jeuck, Buehl/Baden, DE;
Gerhard Kuhnert, Vs-Villingen, DE;
Wolfgang Laufer, Aichhalden, DE;
Mario Staiger, Schramberg-Tennenbronn, DE;
ebm-papst St. Georgen GmbH & Co. KG, St. Georgen, DE;
Abstract
The invention relates to a pump device for pumping a liquid having a hydraulics housing (), in which a pump ring (), a pump ring support (), and an eccentric () are accommodated, which eccentric is to be driven by a shaft (), which defines an axial and a radial direction, wherein the pump ring () has a first axial side () and a second axial side (), wherein the hydraulics housing () comprises an annular portion () and a first and a second lateral section (), wherein the two lateral sections () are arranged opposite each other, wherein the pump ring () is arranged, at least in some portions, between the two lateral sections () of the hydraulics housing (), and wherein on the first axial side () and the second axial side (), the profile of the pump ring () in each case follows a contour with an S-formed curve () with a convex section () and a concave section (), wherein the convex section () lies further outwards in a radial direction of the shaft () in comparison with the concave section ().