Patent · US Expired

Electric machine with stator cooling teeth

US7518271B2 · kind B2 · utility

3Cited by

2References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Horst Braun · Stuttgart, DE
Thomas Berger · Ditzingen, DE
Eugen Hellekes · Stuttgart, DE
Robert E. Goldschmidt · Needham, US

Key dates

Filing date	Oct 7, 2004
Grant date	Apr 14, 2009
Priority date	—
Expiry date	Nov 27, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/207
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical machine, in particular a rotary current generator for motor vehicles, is proposed which has a housing (13) in which a stator (16) is retained, such that a coolant can flow around the outside of the stator (16) from one of its axial face ends (57) to a circumferential region of the stator (16), defining a flow cross section of the flow course through the stator (16) and the housing (13). The flow course is defined toward the stator by outer stator teeth (62) located on the outer circumference of the stator (16).

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