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. 31, 2023
Filed:
Nov. 22, 2018
Nidec Gpm Gmbh, Auengrund ot Merbelsrod, DE;
Andreas Blechschmidt, Zella-Mehlis, DE;
NIDEC GPM GmbH, Auengrund ot Merbelsrod, DE;
Abstract
A toothing for a gerotor pump comprises a plurality of outer teeth () at a gerotor inner element () and a plurality of inner teeth () greater by one at a gerotor outer element (), wherein a centre (M) of the gerotor inner element () is offset from a centre (M) of the gerotor outer element () by an eccentricity (e), the outer teeth () thereby meshing with the inner teeth (). A contour of the outer teeth () at the gerotor inner element () is essentially defined by a curve of a single ellipse from a tooth tip () continuously via tooth flanks () to a transition radius () towards a tooth space or a tooth root (); wherein the principal axis of the ellipse is arranged radially to the gerotor inner element () and the centre of the ellipse determines a radius (R) at the gerotor inner element () which corresponds to the maximum meshing depth of the gerotor outer element () between the outer teeth () at the meshing.