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公开(公告)号：US4922715A
公开(公告)日：1990-05-08
申请号：US130791
申请日：1987-12-09
CPC分类号： F16H61/4183 , F16H61/40 , F16H61/4165
摘要： A hydraulically operated continuously variable transmission includes a hydraulic pump coupled to an input shaft, a hydraulic motor coupled to an output shaft, a closed hydraulic circuit interconnecting the hydraulic pump and the hydraulic motor, and a control valve coupled to an inlet of the hydraulic pump and openable for discharging working oil from the hydraulic pump when the pressure of oil in the inlet of the hydraulic pump is below a prescribed pressure level. The transmission also includes a hydraulically hermetic chamber defined between the pump and motor cylinders and accommodating therein the pump swash plate and the pump plungers, and oil discharge means disposed in the motor cylinder for discharging oil from the hydraulically hermetic chamber when the pressure of oil in the hydraulically hermetic chamber is below a prescribed pressure level.
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公开(公告)号：US4893548A
公开(公告)日：1990-01-16
申请号：US132192
申请日：1987-12-14
摘要： A hydraulically operated, swash-plate apparatus such as a hydraulically operated continuously variable transmission includes a cylinder block rotatably supported in a case and having a plurality of axial cylinders arranged in an annular pattern, plungers received respectively in the cylinders, and a swash plate supported in the case and slidably held against the free ends of the plungers through a shoe therebetween. The plungers are movable into and out of the respective cylinders by a stroke determined by the angle of inclination of the swash plate. The shoe having a body and a sliding surface disposed thereon and slidably held against the swash plate and made of a material having a coefficient of thermal expansion different from that of the body of the shoe. The sliding surface becomes convex at a temperature upon operation of the apparatus.
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3.发明授权Clutch disk of C/C composite for a wet friction clutch, and process for producing the same 失效用于湿摩擦离合器的C / C复合离合器盘及其制造方法
公开(公告)号：US5975270A
公开(公告)日：1999-11-02
申请号：US48952
申请日：1998-03-26
申请人： Toshio Tokune , Tetsuo Naraki , Eiichiro Kawahara , Mitsumasa Furumoto , Tsukasa Takahashi , Takao Nakagawa , Mihoko Yamashita
发明人： Toshio Tokune , Tetsuo Naraki , Eiichiro Kawahara , Mitsumasa Furumoto , Tsukasa Takahashi , Takao Nakagawa , Mihoko Yamashita
CPC分类号： F16D69/023 , F16D13/64 , F16D13/648 , Y10T428/249986
摘要： A clutch disk made of a C/C composite for a wet multi-plate clutch is comprised of a disk body, and a pair of friction layers integral with and on opposite sides of the disk body for sliding contact with clutch plates. A relationship of V.sub.2 >V.sub.1 is established between the porosity V.sub.1 of the disk body and the porosity V.sub.2 of the friction layer, and the porosity V.sub.2 of the friction layer 4 is set in a range of 20%.ltoreq.V.sub.2 .ltoreq.60%, which provides a clutch disk with sufficient strength and excellent sliding characteristics.
摘要翻译： 由用于湿式多板式离合器的C / C复合材料制成的离合器盘包括盘体，以及一对摩擦层，该摩擦层与盘体的与离合器片滑动接触的相对侧并与之相对。 在盘体的孔隙率V1和摩擦层的孔隙率V2之间建立V2> V1的关系，摩擦层4的孔隙率V2设定在20％的范围内。 ％，其提供具有足够强度和优异滑动特性的离合器盘。
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公开(公告)号：US5381724A
公开(公告)日：1995-01-17
申请号：US52819
申请日：1993-05-12
CPC分类号： F01B3/0041 , F04B1/126
摘要： A swash-plate, plunger-type hydraulic pressure apparatus, which may operate as a hydraulic pump or motor, includes a cylinder block, an annular array of plungers slidably held in the cylinder block, a swash plate, a plurality of shoes angularly movably coupled respectively to the ends of the plungers, and a retainer plate mounted adjacent the swash plate and holding the shoes in slidable contact with the sliding surface. The shoes have respective annular grooves defined in the outer cylindrical surfaces thereof. The retainer plate has a plurality of shoe holding holes defined therein and a like plurality of cutout openings extending from the holes. The shoe holding holes communicate with one of outer and inner circumferential edges of the retainer plate through the cutout openings, respectively. The cutout openings have a width slightly larger than the outside diameter of the annular grooves, whereby the annular grooves can be inserted into the shoe holding holes, respectively, through the cutout openings.
摘要翻译： 可以作为液压泵或电动机操作的斜盘式柱塞型液压装置包括气缸体，可滑动地保持在气缸体中的环形阵列的柱塞，斜盘，多个可角度可移动地连接 分别连接到柱塞的端部，以及保持板，其安装在斜盘附近并且保持滑块与滑动表面滑动接触。 鞋子具有限定在其外圆柱形表面中的各自的环形槽。 保持板具有限定在其中的多个鞋保持孔和从孔延伸的类似的多个切口。 鞋保持孔分别通过切口开孔与保持板的外周边缘和内周边缘之一连通。 切口开口的宽度略大于环形槽的外径，由此环形槽可以分别通过切口开口插入到鞋保持孔中。
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公开(公告)号：US4864823A
公开(公告)日：1989-09-12
申请号：US130750
申请日：1987-12-09
IPC分类号： F16H61/40 , F16H61/4139
CPC分类号： F16H61/423 , F16H61/40 , F16H61/4052 , F16H61/421
摘要： A hydraulically operated continuously variable transmission includes a hydraulic pump coupled to an input shaft, a hydraulic motor coupled to an output shaft, a closed hydraulic circuit interconnecting the hydraulic pump and the hydraulic motor, a hydraulic actuator for actuating a controlled member in the closed hydraulic circuit, an auxiliary pump connectable to the closed hydraulic circuit and the hydraulic actuator, a supply oil passage for supplying oil discharged from the auxiliary pump to the hydraulic actuator, and a control valve coupled between the supply oil passage, the closed hydraulic circuit, and an oil tank. The control valve comprises a hydraulic chamber communicating with the supply oil passage, a spring, and a spool disposed between the hydraulic chamber and the spring. The spool is movable, until the pressure of oil in the hydraulic chamber and the force of the spring are balanced, successively from a first position in which the supply oil passage and the closed hydraulic circuit are disconnected and the supply oil passage and the oil tank are disconnected, to a second position in which the supply oil passage and the closed hydraulic circuit are connected, to a third position in which the supply oil passage and the oil tank are connected, in response to an increase in the pressure of oil in the hydraulic chamber.
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6.发明授权Torque fluctuation absorber between a flywheel and a stepless hydraulic transmission 失效飞轮与无级变速器之间的扭矩波动吸收器
公开(公告)号：US4646520A
公开(公告)日：1987-03-03
申请号：US716906
申请日：1985-03-28
摘要： In a hydraulic transmission comprising: an input shaft connected to a flywheel of a crankshaft of an engine through a rotary container of a centrifugal oil filter; and an oil supply pump adapted to be driven by the input shaft, wherein the rotary container has its inside communicating at one side with a discharge port of the supply pump and at the other with a transmission oil circuit, a shock absorbing system characterized: in that a torque absorbing member is interposed between the rotary container connected to the input shaft and a thrust plate fitted rotatably on the outer circumference of the container, the torque absorbing member being adapted to be deformed in response to the relative rotations of the two; and in that the thrust plate is connected the flywheel.
摘要翻译： 一种液压变速器，包括：输入轴，其通过离心式油过滤器的旋转容器连接到发动机曲轴的飞轮; 以及适于由所述输入轴驱动的供油泵，其中所述旋转容器的内部在一侧与所述供应泵的排出口连通，并且在另一侧与传动油回路相连，所述减震系统的特征在于： 扭矩吸收构件设置在连接到输入轴的旋转容器和可旋转地装配在容器的外周上的止推板之间，扭矩吸收构件适于响应于两者的相对旋转而变形; 并且推力板连接在飞轮上。
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公开(公告)号：US5072587A
公开(公告)日：1991-12-17
申请号：US394215
申请日：1989-08-15
IPC分类号： F16H61/40 , F16H61/4139
CPC分类号： F16H61/423 , F16H61/40 , F16H61/4052 , F16H61/421
摘要： A hydraulically operated continuously variable transmission includes a hydraulic pump coupled to an input shaft, a hydraulic motor coupled to an output shaft, a closed hydraulic circuit interconnecting the hydraulic pump and the hydraulic motor, a hydraulic actuator for actuating a controlled member in the closed hydraulic circuit, an auxiliary pump connectable to the closed hydraulic circuit and the hydraulic actuator, a supply oil passage for supplying oil discharged from the auxiliary pump to the hydraulic actuator, and a control valve coupled between the supply oil passage, the closed hydraulic circuit, and an oil tank. The control valve comprises a hydraulic chamber communicating with the supply oil passage, a spring, and a spool disposed between the hydraulic chamber and the spring. The spool is movable, until the pressure of oil in the hydraulic chamber and the force of the spring are balanced, successively from a first position in which the supply oil passage and the closed hydraulic circuit are disconnected and the supply oil passage and the oil tank are disconnected, to a second position in which the supply oil passage and the closed hydraulic circuit are connected, to a third position in which the supply oil passage and the oil tank are connected, in response to an increase in the pressure of oil in the hydraulic chamber.
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公开(公告)号：US4939900A
公开(公告)日：1990-07-10
申请号：US122891
申请日：1987-11-19
IPC分类号： F16H39/14 , F16H61/40 , F16H61/4104 , F16H61/4139 , F16H61/4165
CPC分类号： F16H61/4104 , F16H39/14 , F16H47/02
摘要： A hydraulic motor and a hydraulic pump are interconnected by a closed hydraulic circuit. A lubricating chamber is defined around the sliding surfaces of the swash plate and the plungers of at least one of the hydraulic pump and the hydraulic motor. A shuttle valve has two input ports connected to respective oil passages, the shuttle valve being shiftable to connect the one of the oil passages which is of lower oil pressure to the output port of the shuttle valve when the differential pressure between the oil passages is relatively large. A first relief valve is opened to communicate the output port to the lubricating chamber when the oil pressure in the output port exceeds a first pressure level. A second relief valve connected between the first relief valve and the lubricating chamber is opened when the oil pressure between the first relief valve and the lubricating chamber exceeds a second pressure level lower than the first pressure level.
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公开(公告)号：US4838024A
公开(公告)日：1989-06-13
申请号：US122775
申请日：1987-11-19
IPC分类号： F16H39/14
CPC分类号： F16H39/14 , F16H61/4139 , F16H61/4165
摘要： A hydraulic motor and a hydraulic pump are interconnected by a closed hydraulic circuit. A lubricating chamber is defined around the sliding surfaces of the swash plate and the plungers of at least one of the hydraulic pump and the hydraulic motor. A hydraulically hermetic chamber is defined in surrounding relations to at least one of the hydraulic pump and the hydraulic motor. The hydraulically hermetic chamber is connected to a replenshing pump by a relief valve which is openable at a pressure level. A pressure control valve is disposed in a discharge passageway of the hydraulically hermetic chamber and openable at a first pressure level lower than the pressure level for the relief valve. In another embodiment, a second pressure control valve is connected to a junction between the first pressure control valve and the lubricating chamber and openable at a second pressure level lower than the second pressure level.
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公开(公告)号：US4944154A
公开(公告)日：1990-07-31
申请号：US130418
申请日：1987-12-09
IPC分类号： F16H61/40 , F16H61/4165
CPC分类号： F16H61/4165 , F16H61/40 , F16H61/4139 , F16H61/423
摘要： A hydraulically operated continuously variable transmission includes a hydraulic motor coupled to an output shaft and having a motor swash plate and a motor cylinder supporting an annular array of slidable motor plungers held in slidable contact with the motor swash plate, a distribution member integral with the motor cylinder, a hydraulic pump coupled to an input shaft in sliding contact with the distribution member and having a pump swash plate movable with the motor cylinder and a pump cylinder supporting an annular array of slidable pump plungers held in slidable contact with the pump swash plate, a closed hydraulic circuit interconnecting the hydraulic pump and the hydraulic motor, the pump cylinder being coaxially surrounded by the motor cylinder with a hydraulically hermetic chamber defined therebetween, and a replenishing pump operatively coupled to the input shaft and connected to the closed hydraulic circuit through a replenishing oil passage. The replenishing oil passage partly extends in the distribution member, and the distribution member has an oil passage defined therein and interconnecting the replenishing oil passage and the hydraulically hermetic chamber. A relief valve is disposed in the oil passage in the distribution chamber, the relief valve being openable when the pressure of oil in the replenishing oil passage exceeds a prescribed level.
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