Patent · US Expired

Device for driving a coolant pump

US7475764B2 · kind B2 · utility

8Cited by

9References

10Claims

0Family size

Assignee

BEHR GMBH & CO. KG · DE

Inventors

Gerold Schultheiss · Pforzheim, DE
Peter Ambros · Leutershausen, DE
Rolf Muller · St. Georgen, DE
Rudolf Stoklossa · Meisenheim, DE

Key dates

Filing date	Jul 4, 2003
Grant date	Jan 13, 2009
Priority date	—
Expiry date	Nov 7, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01P7/164
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a device for driving a coolant pump (2) for the coolant circuit of an internal combustion engine in a motor vehicle comprising a drive train that encompasses a drive wheel (7), a viscous coupling (11), and a drive shaft (3). The inventive driving device is provided with a second coupling (15) which is embodied as a clutch and can be connected to the drive train parallel to the viscous coupling (11), resulting in increased redundancy and two-step rev control.

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