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:
Feb. 13, 2018
Filed:
Jul. 10, 2013
Applicant:
Liebherr-components Biberach Gmbh, Biberach an der Riss, DE;
Inventors:
Anton Gaile, Leutkirch, DE;
Anton Staimer, Babenhausen, DE;
Oliver Wennheller, Leutkirch, DE;
Hans-Peter Lavergne, Trunkelsberg, DE;
Assignee:
Liebherr-Components Biberach GmbH, Biberach an der Riss, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01); F15B 15/26 (2006.01); F15B 1/02 (2006.01); F15B 15/18 (2006.01); F03D 80/80 (2016.01); F03D 9/25 (2016.01);
U.S. Cl.
CPC ...
F03D 7/0224 (2013.01); F03D 9/25 (2016.05); F03D 80/88 (2016.05); F15B 1/022 (2013.01); F15B 15/18 (2013.01); F15B 15/261 (2013.01); F05B 2210/11 (2013.01); F05B 2270/604 (2013.01); F15B 2015/268 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/212 (2013.01); F15B 2211/3051 (2013.01); F15B 2211/411 (2013.01); F15B 2211/41554 (2013.01); F15B 2211/41563 (2013.01); F15B 2211/426 (2013.01); F15B 2211/7053 (2013.01); F15B 2211/7054 (2013.01); F15B 2211/8752 (2013.01); Y02E 10/721 (2013.01); Y02E 10/723 (2013.01);
Abstract
The invention relates to a wind energy system with at least one pitch adjustment system for adjusting the pitch of at least one rotor blade of the wind energy system, wherein the pitch adjustment system comprises at least one electrohydraulic drive that comprises an unregulated electromotor rotating in one direction of rotation for generating pressure.