Patent · US Active

Gerotor pump and method of making pressure equalization in a gerotor pump

US11428221B2 · kind B2 · utility

1Cited by

5References

6Claims

0Family size

Assignee

Hanon Systems Bad Homburg GmbH · DE

Inventors

Tilo Schaefer · Bad Sobernheim, DE
Uwe Becker · Stuttgart, DE
Bernd Denfeld · Bad Homburg vor der Höhe, DE

Key dates

Filing date	Sep 13, 2019
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Jan 2, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C29/047
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A gerotor pump having an inner rotor and an outer rotor, which is also the rotor of an electric drive, having a housing and a flange which closes the housing with the motor compartment, the rotor being arranged on a shaft and sealing against the flange at a gap, wherein, in addition to the gap, there is at least one device with which at least a partial pressure compensation takes place between the suction region of the gerotor pump and the motor compartment of the gerotor pump.

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