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1. 发明授权

US07040474B2 Bonded clutch piston 有权
标题翻译：接合离合器活塞
公开(公告)号：US07040474B2
公开(公告)日：2006-05-09
申请号：US10813516
申请日：2004-03-30
申请人： David Pedersen , Todd Michael Gaulin , Paul T. Hagenow
发明人： David Pedersen , Todd Michael Gaulin , Paul T. Hagenow
IPC分类号： F16D25/638
CPC分类号： F16D25/0638
摘要： A clutch assembly is provided including a first member and a second member rotatable relative to the first member. A clutch pack is provided for frictionally engaging the first and second members. A piston chamber is provided adjacent to the clutch pack, and a piston is disposed in the piston chamber and operable for applying axial pressure to the clutch pack. The piston includes first, second, and third seal portions integrally molded in place on the piston and engaging the piston chamber at spaced locations. The integrally molded first, second, and third seal portions reduce the number of components necessary for properly sealing the piston chamber and reduce the amount of labor required for assembly.
摘要翻译：提供一种离合器组件，包括第一构件和相对于第一构件可旋转的第二构件。提供了用于摩擦地接合第一和第二构件的离合器组件。活塞室邻近离合器组件设置，并且活塞设置在活塞室中并可操作以向离合器组件施加轴向压力。该活塞包括在活塞上一体模制在适当位置的第一，第二和第三密封部分，并且在间隔开的位置处与活塞室接合。整体模制的第一，第二和第三密封部分减少了适当密封活塞室所需的部件数量，并减少了组装所需的劳动量。

2. 发明授权

US07296507B2 Piston for automatic transmission 失效
标题翻译：活塞自动变速器
公开(公告)号：US07296507B2
公开(公告)日：2007-11-20
申请号：US11367353
申请日：2006-03-06
申请人： Hirofumi Onishi , Yuji Yasuda
发明人： Hirofumi Onishi , Yuji Yasuda
IPC分类号： F16D25/638 , F16D25/00
CPC分类号： F16D25/0638 , F16D2048/0212 , F16H63/3026
摘要： A piston for an automatic transmission, wherein a first piston member forming a cylindrical portion of the piston has a plurality of axial cutouts and a circumferential groove formed in one axial end portion thereof, and a second piston member forming a bottom portion of the piston has a plurality of radially extending engaging jaws fitted in the plurality of axial cutouts, while a retainer ring is fitted in the circumferential groove and held in abutting contact with the engaging jaws fitted in the axial cutouts, whereby the first and second piston members are fixed to each other. At least one of the engaging jaws of the second piston member cooperates with the retainer ring to form a gap therebetween, which prevents a stress concentration on portions of the circumferential groove adjacent to the axial cutouts, upon an axial movement of the piston, so that the required thickness of the retainer ring can be reduced, leading to size reduction of the piston.
摘要翻译：一种用于自动变速器的活塞，其中形成所述活塞的圆柱形部分的第一活塞构件具有多个轴向切口和形成在其一个轴向端部中的周向槽，并且形成所述活塞的底部的第二活塞构件具有多个径向延伸的接合爪安装在多个轴向切口中，同时保持环装配在周向凹槽中并保持与装配在轴向切口中的接合爪邻接接触，由此第一和第二活塞构件固定到彼此。第二活塞构件的接合爪中的至少一个与保持环配合以在它们之间形成间隙，这防止在活塞的轴向移动时周向槽的邻近轴向切口的部分上的应力集中，使得可以减小保持环所需的厚度，从而导致活塞的尺寸减小。

3. 发明授权

US07104380B2 Dual area piston for transmission clutch and sequential control therefor 有权
标题翻译：双面活塞用于传动离合器和顺序控制
公开(公告)号：US07104380B2
公开(公告)日：2006-09-12
申请号：US10942071
申请日：2004-09-15
申请人： Brian Bishop , Pete Bezjak , Karl Jungbluth
发明人： Brian Bishop , Pete Bezjak , Karl Jungbluth
IPC分类号： F16D25/638 , F16D25/12
CPC分类号： F16D25/0638 , F16D48/02 , F16D2048/0212
摘要： A system for actuating a clutch that alternately driveably connects and disconnects components, includes a clutch having a piston that includes a first apply area and a second apply area, a fluid pressure source, a source of variable control pressure, and a control coupled with the fluid pressure source and operative in response to the control pressure to engage the clutch initially by increasing pressure steadily at the first apply area up to a first magnitude followed by a rapid increase in pressure at the first apply area and the second apply area above the first magnitude to a second magnitude.
摘要翻译：用于致动交替驱动地连接和断开部件的离合器的系统包括具有活塞的离合器，该活塞包括第一施加区域和第二施加区域，流体压力源，可变控制压力源和与流体压力源并且响应于控制压力而起作用，起初通过在第一施加区域处稳定地增加压力直到第一量级，然后在第一施加区域和第一施加区域上方的第二施加区域的第一应用区域上的压力快速增加，大小到第二大。

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