Title:
COOLING DEVICE FOR A ROTOR OF AN ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2013/131825
Kind Code:
A3
Abstract:
The invention relates to an electric machine (12) comprising a stator (16), a rotor (18), a shaft (20) which is mechanically connected to the rotor (18), and a cooling device (26) which is arranged in the shaft (20). The shaft (20) has a recess (22) in which the cooling device (26) is arranged, said shaft (20) being designed so as to be rotatable relative to the cooling device (26).
Inventors:
WÖHNER NORBERT (DE)
Application Number:
PCT/EP2013/054195
Publication Date:
September 04, 2014
Filing Date:
March 01, 2013
Export Citation:
Assignee:
SIEMENS AG (DE)
International Classes:
H02K9/20; H02K1/32; H02K9/22
Foreign References:
| JP2007043817A | 2007-02-15 | |||
| JPH08243878A | 1996-09-24 | |||
| JPH0974716A | 1997-03-18 | |||
| US6191511B1 | 2001-02-20 |
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