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특허 상세정보

Control valve for a torque converter lock-up clutch or the like

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16H-045/02   
미국특허분류(USC) 74/733 ; 137/62566 ; 192/331 ; 192/357
출원번호 US-0589178 (1975-06-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 25  인용 특허 : 0
초록

A control valve pressurizes an outlet conduit when a variable fluid pressure signal rises above a first predetermined level and depressurizes the outlet conduit when the variable signal subsequently drops below a second level that is lower than the first level, the valve further functioning to maintain the outlet conduit unpressurized without regard to the variable fluid pressure signal level in the absence of a second fluid pressure signal. The control valve automatically controls a fluid pressure operated lock-up clutch of a torque converter in a vehic...

대표
청구항

A control valve for pressurizing a fluid-operated device when a variable first fluid pressure signal rises above a first predetermined value, and for subsequently depressurizing said device only after said first fluid pressure signal drops to another predetermined value which is lower than said first value, and which maintains said device unpressurized without regard to said first fluid pressure signal whenever a second fluid pressure signal is absent, comprising: means forming a valve body having a bore therein and having a first fluid pressure signal p...

이 특허를 인용한 특허 피인용횟수: 25

  1. Nishimura Sadanori (Saitama JPX) Maezono Masakazu (Saitama JPX) Ishikawa Keiichi (Saitama JPX). Clutch operation control system for fluid torque converters. USP1986014562905.
  2. Suzuki Tadashi (Yokosuka JPX) Morimoto Yoshiro (Yokosuka JPX) Hamada Hideo (Yokosuka JPX) Suga Masaaki (Yokohama JPX) Futagi Masaaki (Yokosuka JPX). Control method of and system for automatic transmission for automotive vehicle. USP1984094473882.
  3. Morris, Hugh C.. Control system for converter lock-up and simultaneous pressure reduction. USP1984054450941.
  4. Duhaime Michael L. (Detroit MI). Control valve mechanism for a power transmission. USP1981114298105.
  5. Kobayashi Koji (Toyota JPX) Kobayashi Keizo (Anjo JPX). Direct-coupling clutch control system for an automatic transmission. USP1984024431096.
  6. Holbrook Gerald L. (Bloomfield Hills Rochester Hills MI) Benford Howard L. (Bloomfield Hills Clawson MI) Leising Maurice B. (Clawson MI). Fluid actuated switch valve in an automatic transmission. USP1991034996894.
  7. Holbrook Gerald L. (Rochester Hills MI) Benford Howard L. (Bloomfield Hills MI) Leising Maurice B. (Clawson MI). Fluid actuated switch valve in an automatic transmission. USP1990064936166.
  8. Sugano Kazuhiko (Zama JPX). Hydraulic control system for automatic transmission having torque converter with lock-up mechanism. USP1986084607731.
  9. Boston, James; Manning, Eric J.; Nauman, Benjamin D.. Hydraulic system for a torque converter. USP2018059958060.
  10. Sugano, Kazuhiko. Lock-up clutch control valve assembly. USP1985124561528.
  11. Nishikawa Masao (Tokyo JPX) Sakurai Yoshimi (Tanashi JPX) Aoki Takashi (Fujimi JPX) Sato Yoichi (Wako JPX). Lock-up control device for torque converter in automatic transmission for vehicle. USP1987094693347.
  12. Suga Masaaki (Yokohama JPX) Morimoto Yoshiro (Yokosuka JPX) Hamada Hideo (Yokosuka JPX) Futagi Masaaki (Yokosuka JPX) Suzuki Tadashi (Yokosuka JPX). Lock-up control system for a lock-up type automatic transmission of an automotive vehicle having an engine. USP1984074457410.
  13. Suga Masaaki (Yokohama JPX) Morimoto Yoshiro (Yokosuka JPX) Hamada Hideo (Yokosuka JPX). Lock-up control system for lock-up type automatic transmission. USP1984054449618.
  14. Suga, Masaaki; Morimoto, Yoshiro; Hamada, Hideo; Futagi, Masaaki; Suzuki, Tadashi. Lock-up control system for lock-up type automatic transmission. USP1985094539869.
  15. Suga Masaaki (Yokohama JPX). Lock-up type automatic transmission. USP1984024431095.
  16. Neisen, Gerald F.. Marine drive having speed controlled lock-up torque converter. USP1985124558769.
  17. Hofler, Hans; Kurz, Thomas. Method for actuating a clutch of a hydrodynamic torque converter. USP2013088517894.
  18. Hofler, Hans; Kurz, Thomas. Method for controlling a lock-up clutch of a hydrodynamic torque converter. USP2013078491443.
  19. Hofler, Hans; Kurz, Thomas. Method for operating the torque converter lock-up clutch in a power transmission of a mobile machine comprising at least one hydraulically actuated lifting device. USP2013078494735.
  20. Hofler, Hans; Kurz, Thomas. Method for reversing the direction of travel of a vehicle. USP2014058726754.
  21. Hofler, Hans; Kurz, Thomas. Method for the operation of a clutch of a hydrodynamic torque converter. USP2013108550960.
  22. Muller Bruno,DEX ; Homm Manfred,DEX. Pressure medium system. USP2001106296019.
  23. Kobayashi Toshio (Mitaka JPX). System for actuating a clutch for a torque converter. USP1985074529070.
  24. Davis Bill G. (Phoenix AZ). Valve. USP1986104616806.
  25. Ishikawa Kazuo (Aichi JPX). Vehicle automatic power transmission having a lock up clutch. USP1985044512212.