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특허 상세정보

Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16H-011/02   
미국특허분류(USC) 474/28 ; 74/867
출원번호 US-0476601 (1990-02-07)
우선권정보 JP-0033147 (1989-02-13); JP-0033150 (1989-02-13); JP-0033151 (1989-02-13); JP-0091072 (1989-04-11)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 92  인용 특허 : 9
초록

A hydraulic control apparatus for a vehicle power transmitting system having a continuously variable transmission having a first and a second shaft, a pair of variable-diameter pulleys provided on the shafts, a belt connecting the pulleys, and two hydraulic actuators for changing diameters of the pulleys. The apparatus includes a directional control valve for supplying a fluid from a pressure line to one of the two actuators while discharging the fluid from the other actuator, a first fluid passage connected to the directional control valve, for primaril...

대표
청구항

A hydraulic control apparatus for a power transmitting system for an automotive vehicle having a continuously variable transmission which has a first and a second shaft, a pair of variable-diameter pulleys provided on the first and second shafts, respectively, a belt connecting the pulleys, and a pair of hydraulic actuators for changing effective diameters of the pulleys, the apparatus including a directional control valve for supplying a working fluid from a pressure line to one of said pair of hydraulic actuators while discharging the working fluid fro...

이 특허에 인용된 특허 (9)

  1. Rattunde Manfred (Bad Homburg DEX). Cone-pulley belt-type transmission. USP1983094403975.
  2. Soga Yoshinobu (Susono JPX) Kouno Katsumi (Susono JPX) Sugaya Masami (Susono JPX) Okawa Susumu (Aichi JPX). Control device for belt-and-pulley type continuously variable transmission for a vehicle. USP1989094867732.
  3. Abo Keiju (Yokosuka JPX) Oshidari Toshikazu (Yokohama JPX). Control system for transmission. USP1990014895552.
  4. Ito Hiroshi (Toyota JPX). Hydraulic apparatus for a continuously variable transmission. USP1986014565110.
  5. Kouno Katsumi (Susono JPX) Okawa Susumu (Aichi JPX) Sugaya Masami (Susono JPX) Soga Yoshinobu (Susono JPX). Hydraulic control system for continuously variable transmission for automotive vehicle. USP1988094772249.
  6. Kouno Katsumi (Susono JPX) Okawa Susumu (Aichi JPX) Sugaya Masami (Susono JPX) Soga Yoshinobu (Susono JPX). Hydraulic control system for continuously variable transmission for automotive vehicle. USP1989084857034.
  7. van Deursen Petrus H. (Deurne NLX) Ludoph Hemmo H. J. (Heeze NLX). Method and apparatus for controlling an infinitely variable transmission. USP1979054152947.
  8. Itoh Hiroshi (Toyota JPX) Hiramatsu Shigeki (Okazaki JPX) Takada Mitsuru (Toyota JPX) Tamura Tadashi (Toyota JPX). Method and apparatus for controlling hydraulically-operated continuously variable transmission of belt-and-pulley type. USP1986124628773.
  9. Ito Hiroshi (Toyota JPX) Hiramatsu Shigeki (Okazaki JPX) Takada Mitsuru (Toyota JPX). Method for controlling an engine installed with continuously variable transmission. USP1986064594916.

이 특허를 인용한 특허 피인용횟수: 92

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