Patent · US Active

Internal gear pump for a hydraulic vehicle brake system and method for producing the internal gear pump

US9890781B2 · kind B2 · utility

1Cited by

3References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Joachim Schmid · Lompoc, US
Klaus Meyer · Ditzingen, DE
Julius Nemzov · Eßlingen, DE
Karl-Heinz Hach · Schwieberdingen, DE

Key dates

Filing date	Feb 2, 2016
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Aug 13, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2/084
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An internal gear pump for a hydraulic vehicle brake system includes a pump shaft, a pinion, a ring gear, a first axial plate, and a second axial plate. The pinion is disposed on the pump shaft, is configured to rotate conjointly therewith, and is arranged eccentrically within the ring gear so as to mesh therewith. The first and second axial plates are adjacent to the pinion and the ring gear. A toothing on at least one of the ring gear and the pinion is configured such that an axial width of a root of a respective tooth is greater than an axial width of a crest of the respective tooth. A corresponding method relates to producing such an internal gear pump.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.