|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||474/28 ; 74/867|
|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|
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...
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...