Patent · US Active

Cooling device for an electric machine arrangement

US8803379B2 · kind B2 · utility

2Cited by

9References

9Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Stephan Hennings · Leonberg, DE
Jonas Hohenstein · Ludwigsburg, DE
Jochen Schmid · Welzheim, DE
Christian Wendl · Ditzingen, DE

Key dates

Filing date	Oct 27, 2010
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Jul 3, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/203
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A cooling device (1) is provided for an electric machine arrangement (M) that has two electric machines (m1, m2). The cooling device (1) has cooling ducts that run helically around the electric machine arrangement (M). Two openings (7, 9) are arranged at one end (11) of the cooling device (1) and permit an entry and exit of a stream of cooling medium. As a result, the cooling device (1) is particular effective with respect to temperature distribution.

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