Toroidal continuously variable transmission
    1.
    发明授权
    Toroidal continuously variable transmission 失效
    环形无级变速器

    公开(公告)号:US06332858B1

    公开(公告)日:2001-12-25

    申请号:US09556782

    申请日:2000-04-25

    IPC分类号: F16H1538

    CPC分类号: F16H15/38 F16C19/10

    摘要: A power roller (18C, 18D, 20C, 20D) of a toroidal continuously variable transmission is supported by a pedestal (94) such that it is free to rotate. A first roller bearing (96A) supporting the pedestal (94) in the trunnion (17) against a horizontal load which makes a right angle with an input shaft (16) of the transmission, and a second roller bearing (96B, 96C) supporting the pedestal (94) in the trunnion (17) against a vertical load which makes a right angle with the input shaft (16) of the transmission, are provided between the trunnion (17) and the pedestal (94). These roller bearings (96A), (96B), (96C) permit the pedestal (94) to easily displace parallel to the input shaft (16).

    摘要翻译: 环形无级变速器的动力辊(18C,18D,20C,20D)由基座(94)支撑,使得其可自由旋转。 第一滚柱轴承(96A),其抵靠与变速器的输入轴(16)成直角的水平负载,支撑在所述耳轴(17)中的所述基座(94);以及第二滚柱轴承(96B,96C) 在耳轴(17)和基座(94)之间设置有与耳轴(17)中的与传动装置的输入轴(16)成直角的垂直载荷的基座(94)。 这些滚子轴承(96A),(96B),(96C)允许基座(94)容易地平行于输入轴(16)移动。

    Toroidal continuously variable transmission
    2.
    发明授权
    Toroidal continuously variable transmission 有权
    环形无级变速器

    公开(公告)号:US06475111B2

    公开(公告)日:2002-11-05

    申请号:US09731985

    申请日:2000-12-08

    IPC分类号: F16H1538

    摘要: A power roller (18c) comprises a power roller inner wheel (93) in frictional contact with a input/output disks (18a, 18b), a power roller outer wheel (94) provided in a trunnion (17a), a ball bearing (92) interposed between the power roller inner wheel (93) and the power roller outer wheel (94), and an inner wheel supporting shaft (95) which supports the power roller inner wheel (93) such that it is free to rotate, the shaft having a shaft base part (95b) supported in the trunnion (17a), and arranged so that the radial support rigidity is set high in a gyration axis direction and set low in the direction perpendicular to the trunnion gyration axis (19a) and the power roller rotation axis (15d). When one of the disks is pressed and displaced in the direction of the other disk by the press member, the power roller inner wheel (93) displaces with the ball bearing (92) by the displacement of the one of the disks Therefore, as the radial support rigidity of the inner wheel supporting shaft (95) is different depending on the support direction, a slide function of the power roller (18c) can be provided by a simple structure having a small number of component parts which does not have a slide mechanism.

    摘要翻译: 动力辊(18c)包括与输入/输出盘(18a,18b)摩擦接触的动力辊内轮(93),设置在耳轴(17a)中的动力辊外轮(94),滚珠轴承 插入在动力辊内轮(93)和动力辊外轮(94)之间的内轮支撑轴(95),其支撑动力辊内轮(93),使其自由旋转, 该轴具有支撑在所述耳轴(17a)中的轴基部(95b),并且被配置为使得所述径向支撑刚性在回转轴方向上设定得较高,并且在垂直于所述耳轴回转轴(19a)的方向上设定为低 动力辊旋转轴(15d)。 当其中一个盘通过按压部件沿另一个盘的方向被按压和移位时,动力辊内轮(93)由于一个盘的位移而随着滚珠轴承(92)移位,因此,作为 内轮支撑轴(95)的径向支撑刚性根据支撑方向而不同,动力辊(18c)的滑动功能可以通过具有少量不具有滑块的部件的简单结构来提供 机制。

    Toroidal continuously variable transmission
    3.
    发明申请
    Toroidal continuously variable transmission 失效
    环形无级变速器

    公开(公告)号:US20050079947A1

    公开(公告)日:2005-04-14

    申请号:US10625470

    申请日:2003-07-23

    CPC分类号: F16H61/0021 F16H61/6649

    摘要: In a toroidal continuously variable transmission, a primary oil pump is driven by an engine, whereas a secondary oil pump is driven in response to rotation of a road wheel. A hydraulic servo mechanism is connected to a trunnion to create an offset of the trunnion from a neutral position for a tilting motion of the power roller. Also provided is a hydraulic system that supplies the hydraulic pressure discharged from the secondary pump to the hydraulic servo mechanism to prevent the offset of the trunnion in the trunnion-axis direction, corresponding to an upshift, occurring owing to rotation of the road wheel in a stopped state of the engine. A modulated hydraulic pressure, which is constantly produced by the hydraulic system during operation of the engine, acts to hold the secondary pump at either of an inoperative state and an unloaded condition during the operation of the engine.

    摘要翻译: 在环形无级变速器中,主油泵由发动机驱动,而辅助油泵响应于轮轮的旋转而被驱动。 液压伺服机构连接到耳轴以产生耳轴与中性位置的偏移,用于动力辊的倾斜运动。 还提供了一种液压系统,其将从二次泵排出的液压提供给液压伺服机构,以防止由于在一个或多个的车轮中的旋转而发生的对应于升档的耳轴轴线方向上的耳轴的偏移 停止发动机的状态。 在发动机操作期间由液压系统不断产生的调制液压用于在发动机操作期间将副泵保持在非操作状态和无负载状态。

    Toroidal type continuously variable transmission
    4.
    发明授权
    Toroidal type continuously variable transmission 失效
    环形无级变速器

    公开(公告)号:US07204783B2

    公开(公告)日:2007-04-17

    申请号:US10459442

    申请日:2003-06-12

    IPC分类号: F16H15/38

    CPC分类号: F16H61/6648 F16H61/6649

    摘要: When, with engine kept stopped, driven road wheels are turned, the toroidal type continuously variable transmission is suppressed from shifting toward a higher speed side. That is, when, with the engine kept stopped, the road wheels are turned in a reverse direction due to a traction of a motor vehicle with its front end facing backward, an extra oil pump driven by the road wheels produces an oil pressure which is applied to a hydraulic servo mechanism to keep a speed change ratio at a lower speed side. While, when, with the engine kept stopped, the road wheels are turned in a forward direction due to a traction of the motor vehicle with its front end facing forward, the oil pressure produced by the extra oil pump is not practically used. Under this condition, a biasing spring suppresses a servo piston from moving in a direction to bring about a speed change ratio for the higher speed side.

    摘要翻译: 当发动机保持停止时,驱动的车轮转动,环形无级变速器被抑制为向高速侧移动。 也就是说,当发动机保持停止时,由于机动车辆的前端面向后的牵引力,车轮以相反的方向转动,由车轮驱动的额外的油泵产生油压, 施加到液压伺服机构以保持在较低速度侧的变速比。 当发动机保持停止时,由于机动车辆的前端面向前的牵引力,车轮向前方转动,所以不实际使用由额外的油泵产生的油压。 在这种情况下,偏置弹簧抑制伺服活塞在朝向高速侧的速度变化率的方向上移动。

    Toroidal continuously variable transmission
    5.
    发明授权
    Toroidal continuously variable transmission 失效
    环形无级变速器

    公开(公告)号:US07192380B2

    公开(公告)日:2007-03-20

    申请号:US10625470

    申请日:2003-07-23

    IPC分类号: F16H15/38

    CPC分类号: F16H61/0021 F16H61/6649

    摘要: In a toroidal continuously variable transmission, a primary oil pump is driven by an engine, whereas a secondary oil pump is driven in response to rotation of a road wheel. A hydraulic servo mechanism is connected to a trunnion to create an offset of the trunnion from a neutral position for a tilting motion of the power roller. Also provided is a hydraulic system that supplies the hydraulic pressure discharged from the secondary pump to the hydraulic servo mechanism to prevent the offset of the trunnion in the trunnion-axis direction, corresponding to an upshift, occurring owing to rotation of the road wheel in a stopped state of the engine. A modulated hydraulic pressure, which is constantly produced by the hydraulic system during operation of the engine, acts to hold the secondary pump at either of an inoperative state and an unloaded condition during the operation of the engine.

    摘要翻译: 在环形无级变速器中,主油泵由发动机驱动,而辅助油泵响应于轮轮的旋转而被驱动。 液压伺服机构连接到耳轴以产生耳轴与中性位置的偏移,用于动力辊的倾斜运动。 还提供了一种液压系统,其将从二次泵排出的液压提供给液压伺服机构,以防止由于在一个或多个的车轮中的旋转而发生的对应于升档的耳轴轴线方向上的耳轴的偏移 停止发动机的状态。 在发动机操作期间由液压系统不断产生的调制液压用于在发动机操作期间将副泵保持在非操作状态和无负载状态。

    Speed change control system of toroidal continuously variable transmission
    6.
    发明授权
    Speed change control system of toroidal continuously variable transmission 失效
    环形无级变速器变速控制系统

    公开(公告)号:US06652412B2

    公开(公告)日:2003-11-25

    申请号:US09850135

    申请日:2001-05-08

    IPC分类号: F16H1538

    CPC分类号: F16H61/664 F16H15/38

    摘要: A speed change control system is equipped with a feedback mechanism which feeds back the gyration angle of a power roller and the axial displacement of the power roller, to a speed change control valve (100) via a speed change link (12). The feedback mechanism comprises a cam plate (2) which outputs a feedback amount according to the gyration angle of the power roller, an L-shaped link (7) which outputs a feedback amount according to the axial displacement of the power roller, and a feedback link (3) connected to the cam plate (2) and L-shaped link (7), and connected to the speed change link (12). The feedback gain of the feedback amount according to the axial displacement of the power roller due to the L-shaped link (7), is varied according to the gyration angle of the power roller.

    摘要翻译: 变速控制系统配备有反馈机构,其通过变速连杆(12)将动力辊的回转角度和动力辊的轴向位移反馈到变速控制阀(100)。 反馈机构包括根据动力辊的回转角输出反馈量的凸轮板(2),根据动力辊的轴向位移输出反馈量的L形连杆(7),以及 连接到凸轮板(2)和L形连杆(7)的反馈连杆(3),并连接到变速连杆(12)。 根据动力辊由于L形连杆(7)的轴向位移而产生的反馈量的反馈增益根据动力辊的回转角度而变化。

    Speed change control device for a continuously variable transmission
    7.
    发明授权
    Speed change control device for a continuously variable transmission 有权
    变速控制装置,用于无级变速器

    公开(公告)号:US06645120B1

    公开(公告)日:2003-11-11

    申请号:US10070276

    申请日:2002-03-06

    IPC分类号: F16H6130

    摘要: A speed change control valve (7) houses a spool (8) of comprising a land (83) which can face a supply port (7P) supplying an oil pressure, and lands (84, 85) which can respectively face a pair of drain ports (7D, 7D) formed on either side of the supply port (7P). Output ports (7L, 7H) which allow a first and second oil chamber of an hydraulic cylinder to communicate selectively with the supply port (7P) or the drain ports (7D) according to the displacement of a spool (8), are provided in the speed change control valve (7). In the neutral position of the spool (8), the lands (84, 85) respectively face the drain ports (7D), a width L1 of the land (83) is set to be equal to or greater than a width L1 of the supply port (7P), and a width L3 of the lands (84, 85) is set to a width at which the drain port (7D) can open.

    摘要翻译: 变速控制阀(7)容纳有可以面向供给油压的供给口(7P)的平台(83)的卷轴(8),以及分别面对一对排水管 形成在供给口(7P)两侧的端口(7D,7D)。 提供允许液压缸的第一和第二油室根据阀芯(8)的位移与供给口(7P)或排出口(7D)选择性地连通的输出口(7L,7H) 变速控制阀(7)。 在卷轴(8)的中间位置,平台(84,85)分别面对排水口(7D),平台(83)的宽度L1被设定为等于或大于 供应端口(7P),并且焊盘(84,85)的宽度L3被设定为排出口(7D)可以打开的宽度。

    Friction roller type continuously variable transmission
    8.
    发明授权
    Friction roller type continuously variable transmission 失效
    摩擦辊式无级变速器

    公开(公告)号:US6152849A

    公开(公告)日:2000-11-28

    申请号:US236831

    申请日:1999-01-25

    IPC分类号: F16H15/38

    CPC分类号: F16H15/38 Y10T403/7021

    摘要: A friction roller type continuously variable transmission comprises input and output discs arranged on a common axis; friction rollers each being operatively interposed between the input and output discs to transmit torque therebetween; supporting members each rotatably supporting the friction roller and having a shaft extending therefrom; servo-pistons each including a hollow boss portion which has the shaft of the corresponding supporting member slidably received therein, the hollow boss portion being capable of pushing the corresponding supporting member to pivot the corresponding friction roller to continuously change a speed ratio between the input and output discs; and links each connecting corresponding ends of the supporting members to suppress displacement of each friction roller which would occur when the friction roller is applied with a certain thrust from the input and output discs. Articulated structures are provided each being arranged between the hollow boss portion and the corresponding supporting member to permit a pivotal movement of the supporting member relative to the hollow boss portion. Positioning structures are further provided each effecting a relative rotational positioning between the supporting member and the corresponding hollow boss portion.

    摘要翻译: 摩擦辊式无级变速器包括布置在公共轴线上的输入和输出盘; 摩擦辊各自可操作地插入在输入盘和输出盘之间以在其间传递扭矩; 支撑构件,其各自可旋转地支撑摩擦辊并具有从其延伸的轴; 伺服活塞各自包括具有可滑动地容纳在其中的相应支撑构件的轴的中空凸台部分,中空凸台部分能够推动相应的支撑构件以枢转相应的摩擦辊,以连续地改变输入和 输出光盘; 并且连接每个连接支撑构件的相应端部以抑制当从输入和输出盘以一定推力施加摩擦辊时将发生的每个摩擦辊的位移。 提供铰接结构,每个都布置在中空凸台部分和对应的支撑构件之间,以允许支撑构件相对于中空凸台部分的枢转运动。 进一步设置定位结构,每个都在支撑构件和对应的空心凸台部分之间进行相对旋转定位。

    Toroidal continuously variable transmission
    9.
    发明授权
    Toroidal continuously variable transmission 有权
    环形无级变速器

    公开(公告)号:US07077023B2

    公开(公告)日:2006-07-18

    申请号:US10644959

    申请日:2003-08-21

    IPC分类号: F16H15/38

    摘要: In a toroidal continuously variable transmission, a roller-and-cage bearing assembly is interleaved between a power-roller outer ring and a trunnion power-roller accommodating portion to permit a parallel translation of a power roller in an axial direction of input and output disks. A cage of the roller-and-cage bearing assembly is formed with an oval slotted hole. A disk-shaped member is attached to the trunnion power-roller accommodating portion. The slotted hole and the disk-shaped member are fitted to each other to define a predetermined clearance that limits a displacement of the roller-and-cage bearing assembly in a direction perpendicular to both a rotation axis of the power roller and a trunnion axis to a set displacement.

    摘要翻译: 在环形无级变速器中,辊和保持架轴承组件在动力辊外圈和耳轴动力辊容纳部分之间交错,以允许动力辊沿输入和输出盘的轴向平行平移 。 滚子和保持架轴承组件的保持架形成有椭圆形的开槽孔。 盘形构件附接到耳轴动力辊容纳部分。 开槽孔和圆盘状构件彼此装配以限定预定的间隙,其限制了滚动轴承和保持架轴承组件在与动力辊的旋转轴线和耳轴轴线垂直的方向上的位移, 一定位移。