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Hydraulic circuit for turning excavator

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F16D-031/02
출원번호 US-0254514 (1999-03-04)
우선권정보 JPX, 19960919, 8-247883
국제출원번호 PCT/JP97/03288 (1997-09-18)
§371/§102 date 19990304 (19990304)
국제공개번호 WO-9812391 (1998-03-26)
발명자 / 주소
  • Kondo Masami,JPX
출원인 / 주소
  • Yanmar Diesel Engine Co., Ltd., JPX
대리인 / 주소
    Sterne, Kessler, Goldstein & Fox P.L.L.C.
인용정보 피인용 횟수 : 30  인용 특허 : 10

초록

A hydraulic circuit which, when applied to a turning excavator having hydraulic actuators for the working arms and the turning excavator body supplied with pressure oil from three pumps, can increase the operation speed of the booms and arms without providing a separate hydraulic pump to improve the

대표청구항

[ What is claimed is:] [1.]1. A hydraulic circuit system for a turning excavator, comprising:a first hydraulic pump and a second hydraulic pump, wherein one of said first and second hydraulic pumps is fluidly connected to a first hydraulic circuit that supplies pressure oil for driving a boom; andat

이 특허에 인용된 특허 (10)

  1. Williamson William A. (Niles MI), Composite hydraulic system.
  2. Takashima Akira (Sakai JPX), Hydraulic circuit for a backhoe.
  3. Shimoie Shizuo (Saikai JPX), Hydraulic circuit for backhoe.
  4. Arii Kazuyoshi (Osaka JPX) Kumatani Masaru (Osaka JPX), Hydraulic circuit with a switchover valve for switching between a high and a low-pressure relief.
  5. Reid Brian John,GB2 ; Livraghi Isidoro,ITX, Hydraulic control system.
  6. Morizur Jean Y. H. (Compiegne FRX) Yeou Victor (Meau FRX), Hydraulic loading shovels.
  7. Hunger Walter (Otto-Nagler-Strasse 13 87 Wuerzburg DEX), Hydraulically-operated support device for semitrailers.
  8. Symmank William D. (Schofield WI), Multi-engine multi-pump hydraulic summating system.
  9. Bianchetta Donald L. (Coal City IL), Three-circuit fluid system having controlled fluid combining.
  10. Johnson Howard L. (Joliet IL), Three-pump - three-circuit fluid system of a work vehicle having controlled fluid-combining means.

이 특허를 인용한 특허 (30)

  1. Knussman, Michael L., Closed-loop hydraulic system having energy recovery.
  2. Kuehn, Jeffrey L.; Edler, Brad A.; Peterson, Jeremy T.; Verkuilen, Michael T., Closed-loop hydraulic system having force modulation.
  3. Edler, Brad A.; Kuehn, Jeffrey L.; Peterson, Jeremy T.; Verkuilen, Michael T., Closed-loop hydraulic system having priority-based sharing.
  4. Knussman, Michael L.; Opdenbosch, Patrick; Dierking, Joshua, Closed-loop hydraulic system having regeneration configuration.
  5. Saotome, Yoshimi, Construction machine.
  6. Saotome, Yoshimi, Construction machine with hydraulic circuit.
  7. Zhang, Jiao; Ma, Pengfei; Shang, Tonglin; Wen, Gang Victor; Nelson, Bryan Edward; Chen, Dayao, Electro-hydraulic system for recovering and reusing potential energy.
  8. Ma, Pengfei; Shang, Tonglin; Zhang, Jiao; Chen, Dayao; Wen, Gang Victor, Energy recovery system for hydraulic machine.
  9. Wen, Gang Victor; Ma, Pengfei; Zhang, Jiao; Shang, Tonglin, Energy recovery system having integrated boom/swing circuits.
  10. Kojima, Masanari; Nakamura, Masayuki; Terao, Takeshi, Fluid pressure control device for power shovel.
  11. Koo, Bon Seok, Hydraulic circuit for construction machine.
  12. Knussman, Michael L., Hydraulic system.
  13. Knussman, Michael L.; Edler, Brad A.; Opdenbosch, Patrick, Hydraulic system.
  14. Knussman, Michael L.; Edler, Brad A.; Opdenbosch, Patrick, Hydraulic system.
  15. Ikeda, Toshimichi; Lee, Yang Koo, Hydraulic system for construction equipment.
  16. Jeon,Man Suk, Hydraulic system for heavy equipment option apparatus.
  17. Opdenbosch, Patrick, Hydraulic system having flow combining capabilities.
  18. Opdenbosch, Patrick; Knussman, Michael L.; Dierking, Joshua, Meterless hydraulic system having displacement control valve.
  19. Opdenbosch, Patrick; Tognetti, Lawrence J.; Hillman, Bryan J., Meterless hydraulic system having flow sharing and combining functionality.
  20. Opdenbosch, Patrick; Tognetti, Lawrence J.; Hillman, Bryan J., Meterless hydraulic system having flow sharing and combining functionality.
  21. Opdenbosch, Patrick; Tognetti, Lawrence J.; Hillman, Bryan J., Meterless hydraulic system having flow sharing and combining functionality.
  22. Opdenbosch, Patrick; Tognetti, Lawrence J.; Hillman, Bryan J., Meterless hydraulic system having flow sharing and combining functionality.
  23. Opdenbosch, Patrick; Knussman, Michael L.; Dierking, Joshua, Meterless hydraulic system having load-holding bypass.
  24. Opdenbosch, Patrick, Meterless hydraulic system having multi-actuator circuit.
  25. Opdenbosch, Patrick, Meterless hydraulic system having multi-actuator circuit.
  26. Opdenbosch, Patrick, Meterless hydraulic system having pump protection.
  27. Opdenbosch, Patrick; Knussman, Michael L.; Dierking, Joshua, Meterless hydraulic system having restricted primary makeup.
  28. Heemskerk, Edwinus; Hupp, Wolfgang, Valve subassembly having at least two pump lines for a pump.
  29. Yoshida, Nobuyoshi; Inagaki, Ikuo, Working machine control system.
  30. Yoshida, Nobuyoshi; Inagaki, Ikuo, Working machine control system.
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