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:
Sep. 02, 2008
Filed:
May. 16, 2003
Applicants:
Alexander S. Harvey, Edmonton, CA;
David Mcconnell, Edmonton, CA;
Inventors:
Alexander S. Harvey, Edmonton, CA;
David McConnell, Edmonton, CA;
Assignee:
MHL Global Corporation Inc., Edmonton, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 11/02 (2006.01); F03D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wind turbine includes a closed loop hydrostatic transmission. The rotor is directly coupled to a low-speed high torque hydraulic motor, which is pressure-reversible to act as a pump. A variable displacement, pressure compensated hydrostatic transmission receives the hydraulic fluid output and drives a generator. The hydrostatic transmission and the generator may be compactly located in the nacelle of wind turbine tower.