The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2015
Filed:
Nov. 17, 2010
Applicant:
Tobias Roesmann, Dortmund, DE;
Inventor:
Tobias Roesmann, Dortmund, DE;
Assignee:
MOOG UNNA GMBH, Unna, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/00 (2006.01); F01D 7/00 (2006.01); H02K 23/64 (2006.01); F03D 7/02 (2006.01); F03D 9/00 (2006.01); H02K 19/10 (2006.01); H02P 4/00 (2006.01); H02P 25/02 (2006.01); H02K 7/18 (2006.01);
U.S. Cl.
CPC ...
H02K 23/64 (2013.01); F03D 7/0224 (2013.01); F03D 9/003 (2013.01); H02K 19/10 (2013.01); H02P 4/00 (2013.01); H02P 25/021 (2013.01); H02K 7/1838 (2013.01); H02K 2213/09 (2013.01); Y02E 10/721 (2013.01); Y02E 10/723 (2013.01);
Abstract
A pitch drive device for a wind power or hydroelectric power station having a synchronous motor and a motor operation switchover unit for switching between a normal operation and emergency operation modes. To do so, the synchronous motor is operable in normal operation with three-phase AC and in emergency operation with DC. A method for operating a pitch drive device of this type is also disclosed.