Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2007-11-21
2009-08-04
Waks, Joseph (Department: 2834)
Prime-mover dynamo plants
Electric control
Fluid-current motors
C290S055000
Reexamination Certificate
active
07569943
ABSTRACT:
A variable speed wind turbine utilizes a hydraulic transmission including a hydraulic pump coupled to a rotor and a hydraulic motor coupled to an induction generator to produce variable frequency power that is converted to grid frequency power by electronic controls.
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Kimpel Richard D.
Kovach Joesph A.
Lindner Norman C.
Nicol Bradley E.
Parker-Hannifin Corporation
Waks Joseph
Whitman Daniel J.
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