Swash plate type hydraulic drive transmission and hydrostatic type continuously variable transmission
    1.
    发明授权
    Swash plate type hydraulic drive transmission and hydrostatic type continuously variable transmission 失效
    斜盘式液压驱动变速箱和液压式无级变速器

    公开(公告)号:US06698199B2

    公开(公告)日:2004-03-02

    申请号:US10112877

    申请日:2002-04-02

    IPC分类号: F16H3914

    CPC分类号: F16H39/14

    摘要: Distributing valves of a swash plate type hydraulic drive transmission can make a cylinder block smaller and reduce the number of processes and the number of parts. Distributing valves alternately switch, corresponding to the axial reciprocating motion of plungers, communication and cutoff between communication passages communicated to oil chambers opening to the inner surface of cylinder holes and low pressure ports and high pressure ports communicated to a low pressure oil passage and a high pressure oil passage opening to the inner surface of the cylinder holes.

    摘要翻译: 斜盘式液压驱动变速器的分配阀可以使气缸体更小,减少过程数量和零件数量。 分配阀交替切换,对应于柱塞的轴向往复运动,连通通道与连通通道的连通通道与通向缸孔内表面的油室和低压口以及连通至低压油通道的高压口 压力油通道通向气缸孔的内表面。

    Clutch apparatus for a hydrostatic continuously variable transmission and transmission incorporating same
    2.
    发明申请
    Clutch apparatus for a hydrostatic continuously variable transmission and transmission incorporating same 有权
    一种用于静压无级变速器和变速箱的离合器装置

    公开(公告)号:US20050144940A1

    公开(公告)日:2005-07-07

    申请号:US10990356

    申请日:2004-11-16

    CPC分类号: F16H61/14 F16H39/14

    摘要: A hydrostatic continuously variable transmission includes a hydraulic pump and a hydraulic motor, supported by a common support shaft, and hydraulically connectable to each other through a hydraulic circuit including an inside passage and an outside passage. A clutch device includes a valve spool, which is slidably disposed in a hollow internal bore formed in the transmission support shaft. The valve spool is operable to make or interrupt fluid communication between the inside passage and the outside passage, according to the movement thereof. A governor mechanism is mounted to a pump casing of the hydraulic pump, and the governor mechanism generates a governor force corresponding to the rotating speed of a clutch cap, by use of centrifugal force generated by the rotation thereof. The valve spool is effectively moved in the hollow internal bore, using the governor force generated from the governor mechanism, to engage or disengage the clutch.

    摘要翻译: 静液压无级变速器包括由公共支撑轴支撑的液压泵和液压马达,并且通过包括内部通道和外部通道的液压回路彼此液压连接。 离合器装置包括阀芯,其可滑动地设置在形成在变速器支撑轴中的中空内孔中。 阀芯可操作以根据其运动来制造或中断内部通道和外部通道之间的流体连通。 调速机构安装在液压泵的泵壳体上,调速机构利用由其旋转产生的离心力产生与离合器盖的转速对应的调速器。 使用由调速器机构产生的调速器力将阀芯有效地移动到中空内孔中,以使离合器接合或脱离。

    Clutch apparatus for a hydrostatic continuously variable transmission and transmission incorporating same
    3.
    发明授权
    Clutch apparatus for a hydrostatic continuously variable transmission and transmission incorporating same 有权
    一种用于静压无级变速器和变速箱的离合器装置

    公开(公告)号:US07114332B2

    公开(公告)日:2006-10-03

    申请号:US10990356

    申请日:2004-11-16

    IPC分类号: F16D39/00

    CPC分类号: F16H61/14 F16H39/14

    摘要: A hydrostatic continuously variable transmission includes a hydraulic pump and a hydraulic motor, supported by a common support shaft, and hydraulically connectable to each other through a hydraulic circuit including an inside passage and an outside passage. A clutch device includes a valve spool, which is slidably disposed in a hollow internal bore formed in the transmission support shaft. The valve spool is operable to make or interrupt fluid communication between the inside passage and the outside passage, according to the movement thereof. A governor mechanism is mounted to a pump casing of the hydraulic pump, and the governor mechanism generates a governor force corresponding to the rotating speed of a clutch cap, by use of centrifugal force generated by the rotation thereof. The valve spool is effectively moved in the hollow internal bore, using the governor force generated from the governor mechanism, to engage or disengage the clutch.

    摘要翻译: 静液压无级变速器包括由公共支撑轴支撑的液压泵和液压马达,并且通过包括内部通道和外部通道的液压回路彼此液压连接。 离合器装置包括阀芯,其可滑动地设置在形成在变速器支撑轴中的中空内孔中。 阀芯可操作以根据其运动来制造或中断内部通道和外部通道之间的流体连通。 调速机构安装在液压泵的泵壳体上,调速机构利用由其旋转产生的离心力产生与离合器盖的转速对应的调速器。 使用由调速器机构产生的调速器力将阀芯有效地移动到中空内孔中,以使离合器接合或脱离。

    Hydrostatic continuously variable transmission
    4.
    发明授权
    Hydrostatic continuously variable transmission 失效
    静液压无级变速器

    公开(公告)号:US4827721A

    公开(公告)日:1989-05-09

    申请号:US112329

    申请日:1987-10-22

    摘要: In a hydrostatic continuously variable transmission comprising a swashplate type hydraulic pump having a pump swashplate and annularly arranged pump plungers whose suction and discharge strokes are provided by the pump swashplate, a swashplate type hydraulic motor having a motor swashplate and annularly arranged motor plungers whose expansion and shrinkage strokes are provided by the motor swashplate, and a hydraulic closed circuit formed between the hydraulic pump and motor, the middle point of a discharge region of the hydraulic pump is angularly delayed at a given angle in a direction of rotation of the hydraulic pump relative to a tilting axis of the pump swashplate, and/or the middle, point of an expansion region of the hydraulic motor is angularly advanced at a given angle in a direction of rotation of the hydraulic motor relative to a tilting axis of the motor swashplate. Further, a suction region of the hydraulic pump is set at an angle larger than that of a discharge region thereof, and/or a shrinkage region of the hydraulic motor is set at an angle larger than that of an expansion region thereof.

    摘要翻译: 一种液压无级变速器,包括具有泵斜盘的斜盘式液压泵和环形布置的泵柱塞,其抽吸和排出行程由泵斜盘提供;斜盘式液压马达,其具有马达斜盘和环形排列的马达柱塞,其膨胀和 收缩行程由电动斜盘提供,液压泵与电动机之间形成液压闭合回路,液压泵排出区域的中点以液压泵相对转动方向的角度延迟给定角度 和/或液压马达的膨胀区域的中间点在液压马达相对于马达斜盘的倾斜轴的旋转方向上以给定的角度成角度地前进。 此外,液压泵的吸入区域被设定为大于其排出区域的角度,和/或液压马达的收缩区域被设定为大于其膨胀区域的角度。

    Hydraulic non-stage transmission
    7.
    发明授权
    Hydraulic non-stage transmission 失效
    液压非平台传动

    公开(公告)号:US07117672B2

    公开(公告)日:2006-10-10

    申请号:US10792881

    申请日:2004-03-05

    IPC分类号: F16D39/00

    CPC分类号: F16H39/14 F16H47/02

    摘要: A pump and motor distribution valve formed by a hydraulic closed circuit for connection between a pump and a motor. In a hydraulic non-stage transmission CVT including a swash plate plunger type hydraulic pump P and a swash plate plunger type hydraulic motor M connected to each other through a hydraulic closed circuit, a pump swash plate member is driven to rotate. A pump cylinder and a motor cylinder are connected to each other and disposed in a connected state on an output shaft. A motor swash plate, restricted in rotation, is oscillated, and the swash plate angle can be regulated variably. A pump-side spool rotatable as one body with the pump swash plate member and a motor-side spool maintained fixedly are inserted in a valve hole formed in the output shaft to penetrate through the output shaft in the axial direction. A hydraulic closed circuit includes the spools and a plurality of communication oil passages formed in the pump cylinder, the motor cylinder and the output shaft.

    摘要翻译: 泵和电动机分配阀由液压闭合回路形成,用于泵和电动机之间的连接。 在包括通过液压闭合回路相互连接的斜盘式液压泵P和斜盘式液压马达M的液压非级变速器CVT中,泵旋转斜盘构件被驱动旋转。 泵缸和电动机缸体彼此连接并且以连接状态设置在输出轴上。 旋转受限制的电机旋转斜盘振荡,斜盘角度可变。 可旋转地作为一体的泵侧线轴与泵斜盘构件和电动机侧线轴保持固定,插入形成在输出轴上的阀孔中,以沿轴向穿过输出轴。 液压闭合回路包括阀芯和形成在泵缸,电动机缸和输出轴中的多个连通油路。

    Hydrostatic continuously variable transmission
    8.
    发明授权
    Hydrostatic continuously variable transmission 失效
    静液压无级变速器

    公开(公告)号:US07146811B2

    公开(公告)日:2006-12-12

    申请号:US11077954

    申请日:2005-03-11

    IPC分类号: F16H39/14

    CPC分类号: F16H39/14

    摘要: In a hydrostatic continuously variable transmission, a hydraulic pump and a hydraulic motor are connected through a hydraulic closed circuit and the capacity of the hydraulic motor is varied to vary the speed continuously. The transmission has a valve spool in a spool hole made in a transmission output shaft which rotatably holds the hydraulic pump and hydraulic motor; and the transmission output shaft incorporates outer branch oil paths which are connected with an outer passage and open to the spool hole, and an inner branch oil path which is connected with an inner passage and open to the spool hole. A right groove on the outer periphery of the valve spool enables the valve spool to move between a clutch release position in which the outer branch oil paths and the inner branch oil path are connected and a clutch engagement position in which a central land of the valve spool at least covers a high pressure clutch port; and the right groove is connected to the outside through a discharge oil path with an orifice.

    摘要翻译: 在液压无级变速器中,液压泵和液压马达通过液压闭合回路连接,并且液压马达的容量变化以连续地改变速度。 变速器具有在变速器输出轴上制成的滑阀孔中的阀芯,其可旋转地保持液压泵和液压马达; 变速器输出轴结合外部分支油路,其与外部通道连接并且与卷筒孔相通,以及内部分支油路,其与内部通道连接并且与卷轴孔相通。 在阀芯的外周上的右凹槽使得阀芯能够在外分支油路和内分支油路连接的离合器释放位置和离合器接合位置之间移动,在该离合器接合位置中阀的中心区域 阀芯至少覆盖高压离合器端口; 并且右槽通过具有孔口的排出油路连接到外部。

    Hydrostatic continuously variable transmission
    9.
    发明申请
    Hydrostatic continuously variable transmission 失效
    静液压无级变速器

    公开(公告)号:US20050198952A1

    公开(公告)日:2005-09-15

    申请号:US11077954

    申请日:2005-03-11

    IPC分类号: F16H39/14 F16D39/00 B60K41/12

    CPC分类号: F16H39/14

    摘要: In a hydrostatic continuously variable transmission, a hydraulic pump and a hydraulic motor are connected through a hydraulic closed circuit and the capacity of the hydraulic motor is varied to vary the speed continuously. The transmission has a valve spool in a spool hole made in a transmission output shaft which rotatably holds the hydraulic pump and hydraulic motor; and the transmission output shaft incorporates outer branch oil paths which are connected with an outer passage and open to the spool hole, and an inner branch oil path which is connected with an inner passage and open to the spool hole. A right groove on the outer periphery of the valve spool enables the valve spool to move between a clutch release position in which the outer branch oil paths and the inner branch oil path are connected and a clutch engagement position in which a central land of the valve spool at least covers a high pressure clutch port; and the right groove is connected to the outside through a discharge oil path with an orifice.

    摘要翻译: 在液压无级变速器中,液压泵和液压马达通过液压闭合回路连接,并且液压马达的容量变化以连续地改变速度。 变速器具有在变速器输出轴上制成的滑阀孔中的阀芯,其可旋转地保持液压泵和液压马达; 变速器输出轴结合外部分支油路,其与外部通道连接并且与卷筒孔相通,以及内部分支油路,其与内部通道连接并且与卷轴孔相通。 在阀芯的外周上的右凹槽使得阀芯能够在外分支油路和内分支油路连接的离合器释放位置和离合器接合位置之间移动,在该离合器接合位置中阀的中心区域 阀芯至少覆盖高压离合器端口; 并且右槽通过具有孔口的排出油路连接到外部。

    Swash plate type continuously variable transmission
    10.
    发明授权
    Swash plate type continuously variable transmission 失效
    斜盘式无级变速器

    公开(公告)号:US6122914A

    公开(公告)日:2000-09-26

    申请号:US151289

    申请日:1998-09-11

    IPC分类号: F16H39/14 F16D39/00

    CPC分类号: F16H39/14

    摘要: It is intended to provide a swash plate type continuously variable transmission capable of automatically affording a lock-up state in which second distributing valves are stopped at their stroke mid-point to cut off motor ports when a motor swash plate stands upright, even without using any special interlocking mechanism. Second distributing valves for bringing motor ports of motor cylinder bores into communication with a high-pressure oil path and a low-pressure oil path selectively in an alternate manner are arranged in parallel with the axis X of a cylinder block; a valve swash plate for reciprocating the second distributing valves is integrally combined with a motor swash plate on the same slant plane; and the motor ports are formed so as to be controlled selectively by the second distributing valves at respective positions 90.degree. out of phase in the circumferential direction of the cylinder block 4 with respect to the corresponding motor cylinder bores, the second distributing valves being stopped at their stroke mid-points when the motor swash plate stands upright. In a swash plate type hydraulic unit for use as a swash plate type oil-hydraulic pump or motor, it is intended to attain the reduction in radial size of the hydraulic unit while ensuring a sufficient plunger stroke.

    摘要翻译: 旨在提供一种斜盘式无级变速器,其能够自动提供锁定状态,其中当马达斜盘竖立时,第二分配阀在其行程中点停止以切断马达端口,即使不使用 任何特殊的互锁机制。 用于使马达缸孔的马达端口与高压油路连通的第二分配阀和选择性地以交替方式选择的低压油路布置成与气缸体的轴线X平行; 用于使第二分配阀往复运动的阀斜盘与在同一倾斜平面上的马达斜盘一体地组合; 并且电动机端口形成为通过第二分配阀在气缸体4的圆周方向相对于相应的电动机缸孔相位90°的相应位置选择性地进行控制,第二分配阀停止在 他们的冲程中点,当电机斜盘竖立时。 在用作斜盘式油压泵或电动机的斜盘式液压单元中,旨在实现液压单元的径向尺寸的减小,同时确保足够的柱塞行程。