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Roto-dynamic pump with a backflow recirculator 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F04D-013/12
  • F04D-029/68
출원번호 US-0229295 (1981-01-28)
발명자 / 주소
  • Cooper Paul (Titusville NJ)
출원인 / 주소
  • Ingersoll-Rand Company (Woodcliff Lake NJ 02)
인용정보 피인용 횟수 : 81  인용 특허 : 0

초록

A roto-dynamic pump having recirculating means for preventing pump cavitation surging at low flow rates and at moderate to low values of net positive suction head.

대표청구항

A roto-dynamic pump comprising: (a) a housing having a pump chamber, a leading edge region upstream of the pump chamber, an inlet region upstream of the leading edge region permitting fluid to enter the pump and an outlet region downstream of the pump chamber permitting fluid to discharge from the p

이 특허를 인용한 특허 (81)

  1. Wade, Robert Andrew; Knott, Tim J., Active swirl device for turbocharger compressor.
  2. Kolb Werner (Zweibrcken DEX), Axial blower.
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  4. Chen, Hua; Lei, Vai Man; Gu, Mike; Yao, Catherine; Duan, Jeff, Centrifugal compressor with casing treatment for surge control.
  5. Yang, Mingyang; Martinez-Botas, Ricardo, Centrifugal compressor with inlet duct having swirl generators.
  6. Sirakov, Borislav; Chen, Hua; Deschatrettes, Nicolas; Yin, Junfei; Vrbas, Gary; Thoren, Dennis, Centrifugal compressor with surge control, and associated method.
  7. Jones Anthony C. (San Diego CA) Rodgers Colin (San Diego CA), Compressor shroud air bleed passages.
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  12. Japikse, David, Flow stabilizing device.
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  14. Day, Terence Robert, Fluid pump.
  15. Zha, Gecheng, Fluid systems that include a co-flow jet.
  16. Zha, Gecheng, Fluid systems that include a co-flow jet.
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  18. Cooper, Paul V., Gas-transfer foot.
  19. Cooper, Paul V., Gas-transfer foot.
  20. Cooper, Paul V., Immersion heater for molten metal.
  21. Morel Philippe,FRX ; Geai Philippe,FRX ; David Noel,FRX, Inducer equipment for a pump having large induction capacity.
  22. Cooper, Paul V., Ladle with transfer conduit.
  23. Cooper, Paul V., Ladle with transfer conduit.
  24. Cooper, Paul V., Launder transfer insert and system.
  25. Niskanen Toivo (Hamina FIX), Method and apparatus for pumping high-consistency fiber suspension.
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  27. Cooper, Paul V.; Fontana, Vincent D., Method of transferring molten metal from a vessel.
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  36. Cooper, Paul V.; Fontana, Vincent D., Molten metal transfer vessel and method of construction.
  37. Cooper, Paul V.; Fontana, Vincent D., Molten metal transfer vessel and method of construction.
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  39. Cooper, Paul V.; Fontana, Vincent D., Multi-stage impeller for molten metal.
  40. Cooper,Paul V., Protective coatings for molten metal devices.
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  44. Smith, Donald K.; Besen, Matthew M., Radial flow turbomolecular vacuum pump.
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  48. Cooper, Paul V., Rotary degassers and components therefor.
  49. Cooper, Paul V., Rotary degassers and components therefor.
  50. Cooper, Paul V., Rotary degassers and components therefor.
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  52. Cooper, Paul V., Rotor and rotor shaft for molten metal.
  53. Cooper, Paul V., Rotor with inlet perimeters.
  54. Japikse,David; Baun,Daniel O., Secondary flow control system.
  55. Kirtley, Kevin Richard, Self-aspirated flow control system for centrifugal compressors.
  56. Cooper, Paul V., Shaft and post tensioning device.
  57. Cooper, Paul V., Shaft and post tensioning device.
  58. Meng Sen Y. (Reseda CA), Shrouded inducer pump.
  59. Meng Sen Y. (Reseda CA), Shrouded inducer pump.
  60. Cooper, Paul V., Support post clamps for molten metal pumps.
  61. Cooper, Paul V., Support posts for molten metal pumps.
  62. Cooper, Paul V., System and method for degassing molten metal.
  63. Cooper, Paul V., System and method for degassing molten metal.
  64. Cooper, Paul V., System and method for degassing molten metal.
  65. Cooper, Paul V., System for releasing gas into molten metal.
  66. Cooper, Paul V., System for releasing gas into molten metal.
  67. Cooper, Paul V., Systems and methods for melting scrap metal.
  68. Cooper, Paul V., Tension device graphite component used in molten metal.
  69. Cooper, Paul V., Tension device with internal passage.
  70. Cooper, Paul V., Tensioning device extending beyond component.
  71. Cooper, Paul V., Threaded tensioning device.
  72. Cooper, Paul V., Transfer pump launder system.
  73. Cooper, Paul V.; Fontana, Vincent D., Transfer well system and method for making same.
  74. Cooper, Paul V., Transferring molten metal from one structure to another.
  75. Cooper, Paul V., Transferring molten metal from one structure to another.
  76. Cooper, Paul V., Transferring molten metal using non-gravity assist launder.
  77. Cooper, Paul V., Transferring molten metal using non-gravity assist launder.
  78. Cooper, Paul V., Vessel transfer insert and system.
  79. Cooper, Paul V., Vessel transfer insert and system.
  80. Cooper, Paul V., Vessel transfer insert and system.
  81. Meng Sen Y. (Reseda CA), Vortex proof shrouded inducer.
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