发明名称 |
Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission |
摘要 |
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 primarily supplying the fluid from the pressure line to a driving side actuator of the two actuators which is provided on a driving one of the first and second shafts, a second fluid passage connected to the directional control valve, for primarily supplying the fluid from the pressure line to a driven side actuator of the hydraulic actuators, and a flow restrictor for restricting a flow of the fluid through the first fluid passage so that a fluid flow resistance of the first fluid passage is higher than a fluid flow resistance of the second fluid passage.
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申请公布号 |
US5006093(A) |
申请公布日期 |
1991.04.09 |
申请号 |
US19900476601 |
申请日期 |
1990.02.07 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
ITOH, HIROSHI;SUGAYA, MASAMI;SOGA, YOSHINOBU;MORISAWA, KUNIO;HABUCHI, RYOJI;KOUNO, KATSUMI;HATTORI, YUJI |
分类号 |
F16H61/662 |
主分类号 |
F16H61/662 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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