United States Patent  [ii] Patent Number: 4,498,017
Parkins  Date of Patent: Feb. 5, 1985
 GENERATING POWER FROM WIND
 Inventor: William E. Parkins, 20120 Wells Dr., Woodland Hills, Calif. 91364
 Appl. No.: 487,099
 Filed: Apr. 21, 1983
Related U.S. Application Data
 Continuation-in-part of Ser. No. 450,462, Dec. 16, 1982, , which is a continuation-in-part of Ser. No. 385,330, Jun. 4, 1982.
 Int. CI.-1 F03D 17/02; F03D 49/02;
 U.S. CI 290/44; 290/55;
417/35; 416/44 A
 Field of Search 290/44, 55; 322/35;
417/1, 35, 324, 429; 416/44 A
 References Cited
U.S. PATENT DOCUMENTS
1,001,176 2/1911 Snee .
1.010,591 12/1911 Clements .
1,366,844 1/1921 Snee, Jr. .
3,269,121 8/1966 Bening .
3,952,723 4/1976 Browning .
4,013,702 6/1977 Burnett et al. .
4,149,092 4/1979 Cros .
4,274,010 6/1981 Lawson-Tancred .
4,280,061 7/1981 Lawson-Tancred .
Primary Examiner—J. V. Truhe
Assistant Examiner—Shelley Wade
Attorney, Agent, or Firm—Lyon & Lyon
A wind machine turns a shaft to activate a multi-stage positive displacement pump having intake and discharge means respectively coupled to intake and discharge fluid lines in a recirculating hydraulic system. Control means regulates the operative positions of the intake means, discharge means or separate idling means 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 means. Constricting means 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 constructing 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.
30 Claims, 9 Drawing Figures