Patent · US Active

Wind power generator with internal cooling circuit

US9287747B2 · kind B2 · utility

5Cited by

17References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christoph Balzer · Berlin, DE
Karsten Brach · Berlin, DE
Christian Meyer · Karlsruhe, DE
Axel Möhle · Berlin, DE
Andre Schlawitz · Berlin, DE
Frank Seibicke · Borkheide, DE

Key dates

Filing date	Oct 25, 2010
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Mar 6, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A wind power generator with a closed internal cooling circuit has a stator that is implemented as sheet metal and includes a winding system which forms winding heads at the end faces of the stator. The stator is enclosed by a cooling jacket at least in the region of the laminated core, wherein permanent magnets of a rotor are disposed on a magnet wheel jacket embodied as a hollow shaft. The magnet wheel jacket is connected in a rotationally fixed manner to a shaft or shaft stubs by way of support elements at its end faces, wherein in its interior the hollow shaft has at least one tube whose lateral surface area runs at an equidistant clearance from the magnet wheel jacket. Blowers are mounted at the end faces of the rotor.

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