Automatic transmission
    1.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US5579883A

    公开(公告)日:1996-12-03

    申请号:US437314

    申请日:1995-05-09

    摘要: First and second hydraulic servo units operate respective frictional engagement elements in a transmission and each includes first and second cylinders, each having a side wall portion interposed between the two frictional engagement elements. The first cylinder has first outer and inner cylinder portions and the first hydraulic servo unit further includes a first piston having inner and outer cylindrical surfaces slidably supported by the first outer and first inner cylinder portions of the first cylinder for reciprocating axial motion into and out of engagement with one frictional engagement element. First return springs are arranged radially inward of the one frictional engagement element for returning the first piston. The second cylinder includes second outer and inner cylinder portions and the second hydraulic servo unit further includes a second piston having a larger diameter portion and a smaller diameter portion, slidably supported by the inner cylindrical surfaces of the second outer cylinder portion and the first inner cylinder portion, for reciprocating axial motion into and out of engagement with the second frictional engagement element. Second return springs are arranged around the inner circumference of the one frictional engagement element for returning the second piston.

    摘要翻译: 第一和第二液压伺服单元在变速器中操作相应的摩擦接合元件,并且每个包括第一和第二缸,每个具有插入在两个摩擦接合元件之间的侧壁部分。 第一气缸具有第一外筒部和内筒部,第一液压伺服单元还包括第一活塞,其具有由第一气缸的第一外筒体部和第一内筒部可滑动地支撑的内筒体和外筒体, 与一个摩擦接合元件接合。 第一复位弹簧布置在一个摩擦接合元件的径向内侧,用于使第一活塞返回。 第二气缸包括第二外筒部分和第二内筒部分,第二液压伺服单元还包括具有较大直径部分和较小直径部分的第二活塞,其可滑动地由第二外筒部分和第一内筒部分的内圆柱表面支撑 部分,用于往复运动的轴向运动进入和离开与第二摩擦接合元件的接合。 第二复位弹簧布置在一个摩擦接合元件的内圆周周围,用于使第二活塞返回。

    Shift mechanism for automatic transmission with lubricating means for
one-way clutch
    2.
    发明授权
    Shift mechanism for automatic transmission with lubricating means for one-way clutch 失效
    用于单向离合器润滑装置的自动变速器换档机构

    公开(公告)号:US5591099A

    公开(公告)日:1997-01-07

    申请号:US442419

    申请日:1995-05-16

    摘要: A shift mechanism for an automatic transmission includes a frictional engagement element arranged between the case of the automatic transmission and one element of a planetary gear unit and a hydraulic servo unit for engaging the frictional engagement element. A one-way clutch is connected to that same one element of the planetary gear unit for selectively locking it to the case. The one-way clutch is axially spaced from the frictional engagement element with the hydraulic servo unit therebetween. Further, the one-way clutch has its outer race connected to the case and its inner race connected to the aforementioned element of the planetary gear unit through a connection member axially extending along the inner circumferential side of the hydraulic servo unit. The inner race is formed with a radial lubricating oil passage in fluid communication with an oil passage in a transmission shaft.

    摘要翻译: 用于自动变速器的变速机构包括设置在自动变速器的壳体和行星齿轮单元的一个元件之间的摩擦接合元件和用于接合摩擦接合元件的液压伺服单元。 单向离合器连接到行星齿轮单元的同一个元件,用于选择性地将其锁定到壳体。 单向离合器与摩擦接合元件轴向间隔开,其间具有液压伺服单元。 此外,单向离合器的外圈与外壳连接,其内圈通过沿着液压伺服单元的内周侧轴向延伸的连接构件连接到行星齿轮单元的上述元件。 内圈形成有与传动轴中的油路流体连通的径向润滑油通道。

    Five-speed automatic transmission
    3.
    发明授权
    Five-speed automatic transmission 失效
    五速自动变速箱

    公开(公告)号:US5254053A

    公开(公告)日:1993-10-19

    申请号:US964631

    申请日:1992-10-23

    IPC分类号: F16H3/62 F16H3/44 F16H3/66

    CPC分类号: F16H3/66 F16H2200/0047

    摘要: A five-speed automatic transmission includes a main transmission and an over-drive transmission of a front disposition type. The main transmission includes three sets of planetary gears, a clutch for engaging and disengaging speed-change elements of the planetary gear sets, and a brake for fixing and releasing the speed change elements, and provides for four forward speed ranges and one reverse speed range. In the over-drive transmission of a front disposition type, a speed change element of an over-drive planetary gear set connected to an input element of the main transmission is adapted to be engaged, disengaged and fixed for achieving either a directly coupled stage or an over-drive stage. The over-drive transmission releases the direct coupling for reverse driving operation. One of the clutches of the main transmission for achieving the directly coupled stage and one of the brakes for achieving the low speed stage are engageable in the reverse driving operation.

    摘要翻译: 五速自动变速器包括主变速器和前部配置型的过驱动变速器。 主变速器包括三组行星齿轮,用于接合和分离行星齿轮组的变速元件的离合器和用于固定和释放变速元件的制动器,并且提供四个前进速度范围和一个倒档速度范围 。 在前部配置型的过驱动传动中,连接到主变速器的输入元件的过驱动行星齿轮组的变速元件适于接合,分离和固定,以实现直接耦合的级或 过驱动阶段。 过驱动传动释放用于反向驱动操作的直接联接。 用于实现直接耦合级的主变速器的离合器之一和用于实现低速级的制动器之一可接合于反向驱动操作。

    Automatic transmission
    4.
    发明授权
    Automatic transmission 有权
    自动变速器

    公开(公告)号:US06679804B2

    公开(公告)日:2004-01-20

    申请号:US10058303

    申请日:2002-01-30

    IPC分类号: F16H362

    摘要: A multi-stage automatic transmission using a reduction planetary gear and a planetary gear set in which the respective thrust forces generated thereat are supported by a low bearing load or a low case load. The automatic transmission is provided with a reduction planetary gear, coupled to an input shaft to fix a reaction force element so as to output a reduction rotation to an output element, and a planetary gear set, that outputs a speed shift rotation upon input of the subsequent reduction rotation. During at least first gear driving, there is provided a force transmission route in which thrust forces generated at one element of the reduction planetary gear and one element of the planetary gear set, respectively, are transmitted. In that route, a torsion direction of the helical teeth of the respective elements are set such that a direction of a thrust force of the element and a direction of the thrust force of the other element are different from each other during first gear driving.

    摘要翻译: 使用减速行星齿轮和行星齿轮组的多级自动变速器,其中在其上产生的各个推力由低轴承负载或小负载负载。 自动变速器设置有减速行星齿轮,联接到输入轴以固定反作用力元件以将减速旋转输出到输出元件;以及行星齿轮组,其在输入时输出速度换档旋转 随后的减速旋转。 在至少第一齿轮传动期间,设置有力传递路径,其中分别在所述还原行星齿轮的一个元件处产生的推力和所述行星齿轮组的一个元件产生的推力。 在该路径中,各元件的螺旋齿的扭转方向被设定为使得元件的推力方向和另一元件的推力方向在第一档位驱动期间彼此不同。

    Automatic transmission for vehicles
    5.
    发明授权
    Automatic transmission for vehicles 失效
    汽车自动变速器

    公开(公告)号:US5735376A

    公开(公告)日:1998-04-07

    申请号:US621033

    申请日:1996-03-22

    摘要: A vehicular automatic transmission, for establishing a plurality of forward gear stages, includes: a transmission case; an input shaft; a transmission mechanism connected to the input shaft and including a plurality of transmission elements; an output shaft connected to the transmission mechanism; a clutch drivably connecting any one of the input shaft and the transmission elements individually; and a hydraulic servo for applying the clutch responsive to an oil pressure. The transmission case encloses the transmission mechanism, the clutch and the hydraulic servo, and includes axial end walls, on one of which is formed a stationary cylinder for the hydraulic servo. A piston is slidably mounted in the cylinder and together with the cylinder, defines an oil chamber for receipt of the actuating oil pressure. A bearing is arranged between the piston and the clutch for transmitting the thrust force from the piston to the clutch, while allowing relative rotation between the piston and the clutch. The clutch includes a hub with an outer cylindrical surface splined to a friction plate assembly and a rim radially spaced from the hub with the friction plate assembly splined to its inner cylindrical surface. The input shaft is connected to the hub whereas one of the transmission elements is connected to the rim.

    摘要翻译: 一种用于建立多个前进档位的车辆自动变速器,包括:变速箱; 输入轴; 连接到所述输入轴并且包括多个传动元件的传动机构; 连接到传动机构的输出轴; 分别驱动地连接输入轴和传动元件中的任一个的离合器; 以及用于响应于油压而施加离合器的液压伺服机构。 传动箱包围传动机构,离合器和液压伺服机构,并且包括轴向端壁,其中一个壁形成液压伺服机构的静止气缸。 活塞可滑动地安装在气缸中并与气缸一起形成用于接收致动油压力的油室。 在活塞和离合器之间布置有用于将推力从活塞传递到离合器的轴承,同时允许活塞和离合器之间的相对旋转。 离合器包括具有花键连接到摩擦板组件的外圆柱形表面的轮毂和与轮毂径向间隔开的边缘,摩擦板组件花键连接到其内圆柱形表面。 输入轴连接到轮毂,而其中一个传动元件连接到轮辋。

    Automatic transmission
    6.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US5470284A

    公开(公告)日:1995-11-28

    申请号:US269059

    申请日:1994-06-30

    摘要: An automatic transmission for five forward speeds equipped with a main transmission mechanism and an auxiliary transmission mechanism. The auxiliary transmission mechanism includes a multi-disc clutch and a hydraulic servo therefor arranged in a first planetary gear set. The first planetary gear set includes a first ring gear connected to an output unit of the main transmission mechanism and a first carrier connected to an output shaft and further to a first sun gear through a multi-disc clutch and a hydraulic servo for the former. The hydraulic servo for the multi-disc clutch is connected to an integral casing through a band brake and is arranged around the outer circumference of the hydraulic servo for the multi-disc clutch. A second planetary gear set is arranged on the hydraulic servo for the multi-disc clutch and includes a second ring gear connected to the output shaft, a second carrier connected to the integral casing through a multi-disc brake and a second sun gear connected to the first sun gear through the cylinder of a hydraulic servo for the multi-disc clutch. The rear casing forms part of the cylinder of the hydraulic servo for the multi-disc brake. The auxiliary transmission mechanism has a compact three-speed construction to provide five forward speeds in cooperation with the main transmission mechanism. The five-speed automatic transmission can be easily modified merely by removing the second planetary gear set and the brake for the 1st speed to provide a four-speed transmission at a reasonable cost due to the sharing of parts in common.

    摘要翻译: 一种具有主传动机构和辅助传​​动机构的五个前进速度的自动变速器。 辅助传动机构包括设置在第一行星齿轮组中的多片离合器和液压伺服机构。 第一行星齿轮组包括连接到主传动机构的输出单元的第一环形齿轮和连接到输出轴的第一行星架以及通过多片离合器的第一太阳齿轮和用于前者的液压伺服机构。 用于多片式离合器的液压伺服机构通过带式制动器连接到整体式壳体,并且围绕用于多片式离合器的液压伺服机构的外周布置。 第二行星齿轮组布置在用于多片离合器的液压伺服上,并且包括连接到输出轴的第二齿圈,通过多盘式制动器连接到整体式壳体的第二行星架和连接到 第一个太阳齿轮通过用于多片离合器的液压伺服机构的气缸。 后壳体形成用于多盘式制动器的液压伺服机构的气缸的一部分。 辅助传动机构具有紧凑的三速结构,与主传动机构配合提供五个前进速度。 五速自动变速器可以通过拆卸第二行星齿轮组和第一速度的制动器而容易地改变,由于共用共同的部件,以合理的成本提供四速变速器。

    Automatic transmission
    7.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US08100809B2

    公开(公告)日:2012-01-24

    申请号:US11658912

    申请日:2005-11-29

    IPC分类号: F16H3/44 F16H57/04

    摘要: A first element of a duplex planetary gear set is selectively coupled to an input shaft via a third clutch, or is selectively fixed via a first brake. A second element is selectively coupled, via a second clutch, to an intermediate shaft that is directly coupled to a speed-increasing element of a simplex planetary gear set which increases the rotational speed of the input shaft, or is selectively fixed via a second brake. A third element is directly coupled to an output shaft. A fourth element is selectively coupled to the input shaft via a first clutch. Therefore, by increasing the speed of the rotation of the input shaft by the simplex planetary gear set and transferring it to the duplex planetary gear set, it is possible to reduce the torques on individual components of an automatic transmission and therefore to reduce the sizes of the individual components and the capacities of the individual friction engagement elements.

    摘要翻译: 双工行星齿轮组的第一元件通过第三离合器选择性地联接到输入轴,或者经由第一制动器选择性地固定。 第二元件通过第二离合器被选择性地联接到直接联接到增加输入轴的转速的单工行星齿轮组的增速元件的中间轴,或者经由第二制动器选择性地固定 。 第三元件直接耦合到输出轴。 第四元件通过第一离合器选择性地联接到输入轴。 因此,通过增加单面行星齿轮组的输入轴的旋转速度并将其传送到双工行星齿轮组,可以减少自动变速器的各部件的转矩,因此能够减小 各个部件和各个摩擦接合元件的容量。

    Hydraulic servo unit for vehicular power transmission system
    9.
    发明授权
    Hydraulic servo unit for vehicular power transmission system 失效
    液压伺服单元,用于车辆动力传动系统

    公开(公告)号:US5908096A

    公开(公告)日:1999-06-01

    申请号:US771140

    申请日:1996-12-20

    摘要: A hydraulic servo unit for a vehicular power transmission system having a helical gear, including a clutch for connecting predetermined rotary elements to each other and a hydraulic servo for applying the clutch, the hydraulic servo including a cylinder, a piston fitted in the cylinder, a push member abutting against the piston through a bearing for transmitting the push force of the piston to the clutch, and a return spring for the piston, one of the rotary elements including a reaction member opposed to the push member for transmitting the push force of the piston to a case, and the cylinder is a stationary cylinder formed in the case. Further, the return spring is arranged between the push member and the reaction member and is loaded to apply a load higher than the thrust force of the helical gear, as acting upon the reaction member.

    摘要翻译: 一种用于车辆动力传动系统的液压伺服单元,其具有斜齿轮,包括用于将预定旋转元件彼此连接的离合器和用于施加离合器的液压伺服机构,所述液压伺服系统包括气缸,安装在气缸中的活塞, 推动构件通过用于将活塞的推力传递到离合器的轴承抵靠活塞,以及用于活塞的复位弹簧,其中一个旋转元件包括与推动构件相对的反作用构件,用于传递 活塞到壳体,并且气缸是形成在壳体中的静止气缸。 此外,复位弹簧布置在推动构件和反作用构件之间,并且被加载以施加高于作用在反作用构件上的螺旋齿轮的推力的载荷。

    Automatic transmission for vehicle with reverse gear brake
    10.
    发明授权
    Automatic transmission for vehicle with reverse gear brake 失效
    自动变速箱车辆倒档制动

    公开(公告)号:US5890988A

    公开(公告)日:1999-04-06

    申请号:US771136

    申请日:1996-12-20

    摘要: An automatic transmission for a vehicle with a reverse gear brake that includes a case. A predetermined rotational element, having gear teeth and an axis, is disposed within the case. The predetermined rotational element only operates as a rotational element when achieving a reverse gear mode. A brake has a gear member. The gear member is attached to the case so that it cannot rotate relative to the case, but is movable along the axis of the predetermined rotational element so that it can be engaged and disengaged with the teeth of the predetermined rotational element. The predetermined rotational element is fixed to the case so that it cannot rotate relative to the case when the gear teeth engage the gear member.

    摘要翻译: 一种具有倒车齿轮制动器的车辆的自动变速器,其包括壳体。 具有齿轮齿和轴线的预定旋转元件设置在壳体内。 当实现倒车档模式时,预定的旋转元件仅作为旋转元件操作。 制动器具有齿轮构件。 齿轮构件附接到壳体,使得其不能相对于壳体旋转,而是可以沿着预定旋转元件的轴线移动,使得其可以与预定旋转元件的齿接合和分离。 预定的旋转元件被固定到壳体上,使得当齿轮与齿轮构件接合时,它不能相对于壳体旋转。