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Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F15B-011/024
  • F15B-011/00
  • E02F-009/22
출원번호 US-0535505 (2006-09-27)
등록번호 US-7487707 (2009-02-10)
발명자 / 주소
  • Pfaff,Joseph L.
  • Stephenson,Dwight B.
출원인 / 주소
  • Husco International, Inc.
대리인 / 주소
    Quarles & Brady LLP
인용정보 피인용 횟수 : 27  인용 특허 : 13

초록

A hydraulic circuit controls flow of fluid between first and second ports of a hydraulic actuator, such as a cylinder/piston arrangement and each of a supply conduit and a tank return conduit. The hydraulic circuit operates in standard powered operating modes as well as powered and unpowered regener

대표청구항

What is claimed is: 1. A hydraulic circuit for controlling flow of fluid between a hydraulic actuator, that has a first port and a second port, and each of a supply conduit and a tank return conduit, said hydraulic circuit comprising: a spool valve having an inlet connected to the supply conduit, a

이 특허에 인용된 특허 (13)

  1. Saotome Yoshimi (Takasago JPX) Kuchiki Kiyotsuna (Kakogawa JPX) Katada Tsuyoshi (Kakogawa JPX), Apparatus for suppressing quaky movements of mobile cranes.
  2. Post, Timothy A., Electrically operated hydraulic actuator with force feedback position sensing.
  3. Shimada, Yoshiyuki, Fluid pressure circuit.
  4. Schexnayder Lawrence F. (Joliet IL), Fluid regeneration circuit.
  5. Shimada Yoshiyuki,JPX, Hydraulic circuit.
  6. Layne Michael C. ; Wilke Raud A. ; Pedersen Leif ; Paik Michael J., Hydraulic control valve system with split pressure compensator.
  7. Saotome Yoshimi (Takasago JPX) Kuchiki Kiyotsuna (Kakogawa JPX) Hayashi Norihiko (Kakogawa JPX), Mechanism for suppressing displacement of travelling crane.
  8. Yang, Xiaolong; Paik, Michael J.; Pfaff, Joseph L., Pilot operated control valve having a poppet with integral pressure compensating mechanism.
  9. Wilke Raud A. (Brookfield WI), Post pressure compensated unitary hydraulic valve.
  10. Wilke Raud A. (Dousman WI) Hamkins Eric P. (Waukesha WI) Layne Michael C. (Waterford WI) Pedersen Leif (Waukesha WI) Russell Lynn A. (Eagle WI), Pressure compensating hydraulic control system.
  11. Wilke Raud A., Pressure compensating hydraulic control valve system.
  12. A'Hearn, Michael Anthony; Mather, Daniel J.; Rangamani Srikrishnan; Tolappa, Srikrishnan Tirumalai Kumara, Pressure-compensated hydraulic circuit with regeneration.
  13. Anderson Gerald C. (Oconomowoc WI) Frank Kenneth F. (West Bend WI), Three-way proportional valve.

이 특허를 인용한 특허 (27)

  1. Biwersi, Sascha Alexander; Hettiger, Marcus; Specks, Marcus Simon; Stoenner, Christoph; Pfeiffer, Marcus Karl; Lautner, Erik, Control apparatus.
  2. Russell, Lynn A.; Olsen, James E.; Clark, Michael J., Control valve assembly with a workport pressure regulating device.
  3. Chaika, Darin J., Electro-hydraulic interactive double feedback loop.
  4. Zhang, Jiao; Ma, Pengfei; Shang, Tonglin; Wen, Gang Victor; Nelson, Bryan Edward; Chen, Dayao, Electro-hydraulic system for recovering and reusing potential energy.
  5. Barber, Dennis Ray, Electrohydraulic valve having dual-action right-angle pilot actuator.
  6. Ma, Pengfei; Shang, Tonglin; Zhang, Jiao; Chen, Dayao; Wen, Gang Victor, Energy recovery system for hydraulic machine.
  7. Zhang, Jiao; Chen, Dayao; Ma, Pengfei; Shang, Tonglin; Tognetti, Lawrence J.; Kuehn, Jeffrey L., Energy recovery system having accumulator and variable relief.
  8. Wen, Gang Victor; Ma, Pengfei; Zhang, Jiao; Shang, Tonglin, Energy recovery system having integrated boom/swing circuits.
  9. Oguma, Shota; Ueda, Koji, Hydraulic circuit for construction machine.
  10. Kauss, Wolfgang; Desbois-Renaudin, Matthieu, Hydraulic control system.
  11. Cesur, Rustu; Zhang, Jiao; Shang, Tonglin; Hillman, Bryan J.; Spring, Peter; Tognetti, Lawrence J.; Ma, Pengfei, Hydraulic control system having electronic flow limiting.
  12. Ma, Pengfei; Zhang, Jiao; Shang, Tonglin; Spring, Peter; Chen, Dayao; Syed, Salik A.; Ferraz, Jr., John; Peterson, Randal N., Hydraulic control system having energy recovery kit.
  13. Peterson, Randal N.; Egelja, Aleksandar M.; Cesur, Rustu, Hydraulic control system having over-pressure protection.
  14. Cesur, Rustu; Tognetti, Lawrence J.; Ma, Pengfei; Zhang, Jiao; Shang, Tonglin, Hydraulic control system having swing energy recovery.
  15. Ma, Pengfei; Zhang, Jiao; Chen, Dayao; Shang, Tonglin, Hydraulic control system having swing energy recovery.
  16. Hillman, Bryan J.; Zhang, Jiao; Tognetti, Lawrence C.; Spring, Peter; Cesur, Rustu; Shang, Tonglin, Hydraulic control system having swing motor energy recovery.
  17. Zhang, Jiao; Shang, Tonglin; Spring, Peter; Ma, Pengfei; Peterson, Randal N., Hydraulic control system having swing motor energy recovery.
  18. Zhang, Jiao; Shang, Tonglin; Spring, Peter; Ma, Pengfei; Peterson, Randal N.; Cesur, Rustu, Hydraulic control system having swing motor energy recovery.
  19. Zhang, Jiao; Tognetti, Lawrence J.; Ma, Pengfei; Chen, Dayao; Ferraz, Jr., John; Yoshino, Tetsuya, Hydraulic control system having swing motor energy recovery.
  20. Zhang, Jiao; Ma, Pengfei; Shang, Tonglin; Cesur, Rustu; Hillman, Bryan J.; Spring, Peter; Tognetti, Lawrence J.; Peterson, Randal N.; Chen, Dayao, Hydraulic control system having swing motor recovery.
  21. Shang, Tonglin; Cesur, Rustu; Hillman, Bryan J.; Zhang, Jiao, Hydraulic control system having swing oscillation dampening.
  22. Greenwood, Jason; Rades, Matthew J.; Kelpin, Susan, Hydraulic valve assembly with tank return flow compensation.
  23. Carlin, Jerry Faye; Ireton, Robin Francis; Gehlhoff, Wade Leo; Pedersen, Leif, Load energy assist and horsepower management system.
  24. Ramler, Matthew J; Jones, Robb A., Regenerative hydraulic circuit for dump truck bin lift cylinder.
  25. O'Neill, William N; Jackson, Michael Thomas, System and method for controlling a work implement of a machine.
  26. Greenwood, Jason; Rades, Matthew J.; Schedgick, David J., Valve control valve circuit for operating a single acting hydraulic cylinder.
  27. Harsia, Jarmo; Stegemann, Patrick, Variable load sense open center hybrid system.
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