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公开(公告)号：US20050079947A1
公开(公告)日：2005-04-14
申请号：US10625470
申请日：2003-07-23
IPC分类号： F16H15/38 , F16H61/00 , F16H61/16 , F16H61/662 , F16H61/30
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。
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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。
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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。
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公开(公告)号：US06231473B1
公开(公告)日：2001-05-15
申请号：US09382666
申请日：1999-08-25
IPC分类号： F16H1310
CPC分类号： F16H15/38
摘要： A preloading mechanism (16) of a toroidal continuously variable transmission applies a predetermined preload to disks (1a, 1b, 2a, 2b) by belleville springs (9a, 9b). The input disk (1b) displaces in such a compressing direction of the belleville spring (9a) as the speed ratio increases. The displacement of the input disk (1b) is limited by a spacer (50), so the clearance (S) of the belleville springs (9a, 9b) is never zero and a large force is prevented from acting on the belleville springs (9a, 9b).
摘要翻译： 环形无级变速器的预加载机构（16）通过百叶窗弹簧（9a，9b）向盘（1a，1b，2a，2b）施加预定的预载荷。 当速比增加时，输入盘（1b）在贝氏弹簧（9a）的压缩方向上移位。 输入盘（1b）的位移受到间隔件（50）的限制，所以贝氏弹簧（9a，9b）的间隙（S）永远不会为零，并且防止大的力作用在贝氏弹簧（9a）上 ，9b）。
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5.发明授权公开(公告)号：US06527666B1
公开(公告)日：2003-03-04
申请号：US09669736
申请日：2000-09-26
IPC分类号： F16H1538
CPC分类号： F16H15/38 , F16H57/049
摘要： A toroidal type continuously variable transmission includes trunnions (4) formed with shoulder portions (40) which oppose an upper link (5) and a lower link (6), and projections (50) on the links (5, 6) which can slide on the shoulder portions (40) when the links (5, 6) perform swinging movement. Along with forming the trunnions (4) in single units by forging, step portions (4B) are arranged between the shoulder portions (40) and sloping portions (45) of the offset portions (4A). Planar portions (40A) are formed in the shoulder portions (40) which can slide on the projections (50) by cutting or grinding so that their radiuses R from the rotation axes (4C) up to the end portions of the step portions (4B) are set in advance.
摘要翻译： 环形无级变速器包括形成有与上连杆（5）和下连杆（6）相对的肩部（40）的枢轴（4）和能够滑动的连杆（5,6）上的突起（50） 当链节（5,6）进行摆动时，在肩部（40）上。 随着通过锻造在单个单元中形成耳轴（4），台阶部分（4B）布置在偏移部分（4A）的肩部（40）和倾斜部分（45）之间。 平面部分（40A）形成在肩部（40）中，其可以通过切割或研磨在凸起（50）上滑动，使得它们的半径R从旋转轴线（4C）直到台阶部分（4B）的端部 ）预先设置。
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6.发明授权公开(公告)号：US06413187B1
公开(公告)日：2002-07-02
申请号：US09669740
申请日：2000-09-26
IPC分类号： F16H1538
CPC分类号： F16H15/38
摘要： In a toroidal type continuously variable transmission, shoulder portions are formed on a trunnion which opposes an upper link or a lower link, and projecting portions are formed on the links which slidably contact the shoulder portions when the links execute swinging movement. The end portions of the projecting portions which slidably contact the shoulder portions are formed with arcuate faces.
摘要翻译： 在环形无级变速器中，肩部形成在与上连杆或下连杆相对的耳轴上，并且当连杆执行摆动时，突出部分形成在可滑动地接触肩部的连杆上。 与肩部可滑动接触的突出部分的端部形成有弓形面。
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