F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
170/28, 322/34,
F03D 7/04 (2006.01) F03D 7/02 (2006.01) F03D 9/00 (2006.01) F03D 9/02 (2006.01) F03D 11/02 (2006.01)
Patent
CA 1193514
ABSTRACT A wind machine turns a shaft to activate a multistage positive dis- placement pump having intake and discharge valves respectively coupled to intake and discharge fluid lines in a recirculating hydraulic system. A controller regulates the operative positions of the intake valves, discharge valves or separate idling arrangement to remove selected stages from effective pumping while at the same time fluid passes into and from the selected stages. The stages can be of different capacities and selected groups or all of them may be periodically idled by a common or individual idling arrangement. A constrict- ing valve is located in the common discharge line from all stages and can be additionally located in each discharge line from each stage. Automatic control of torque on the wind rotor shaft by the idling and constricting means permits the rotor to start to rotate, continue to rotate at a speed for maximum efficiency conversion of the wind power into hydraulic power over any desired range of wind speeds, rotate as limited to any specified maximum rates rotation during high wind speeds, and to stop and lock if the wind speed becomes excessive. The hydraulic system can parallel-connect a number of wind machines to drive a single turbine installation to produce useful power.
429711
Parkins William E.
Smart & Biggar
LandOfFree
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