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1. 发明授权

US5305863A Clutch assembly for an automatic mechanical transmission 失效
标题翻译：用于自动机械传动的离合器组件
公开(公告)号：US5305863A
公开(公告)日：1994-04-26
申请号：US998901
申请日：1992-12-30
申请人： Douglas C. Gooch , Lloyd A. Waling , John S. Steurer , Paul R. Peterson
发明人： Douglas C. Gooch , Lloyd A. Waling , John S. Steurer , Paul R. Peterson
IPC分类号： F16D43/24 , F16D25/0638 , F16D25/12 , F16D43/284 , F16H45/00 , F16H45/02 , F16H57/04 , F16H61/14 , F16H63/30 , F16D13/74 , F16D25/063
CPC分类号： F16H57/04 , F16D25/0638 , F16D43/284 , F16H45/00 , F16H61/142 , F16H2045/005 , F16H2045/0278 , F16H2045/0284 , F16H45/02
摘要： A lubrication system for an automatic transmission clutch assembly having a drive and driven rotary member rotatable by a common axis with a clutch element therebetween for connecting and disconnecting the members. The drive member has an internal passageway formed therein for feeding the lubricant to the clutch member. The passageway has a section which is radially spaced from the axis of rotation and as a seat formed therein for cooperating with the rotationally speed sensitive valve oriented in the first passageway. Below first rotational speed, the lubricant pressure maintains the valve against the seat restricting the flow of lubricant to the clutch element. When the driven member is rotated above the first rotational speed. Centrifugal force biases the valve off the seat, allowing lubricant to be supplied to the clutch element. Preferably, a second lubrication passageway is provided having a seat in an internal valve which selectively supplies a lubricant to the clutch element at a second higher rotational speed. In order to further reduce disengaged clutch drag at idle, a speed sensitive piston retract spring is provided to increase piston travel at low engine speeds while maintaining minimum travel at off idle operation.
摘要翻译：一种用于自动变速器离合器组件的润滑系统，其具有通过公共轴可旋转的驱动旋转构件和从动旋转构件，其间具有用于连接和断开构件的离合器元件。驱动构件具有形成在其中的内部通道，用于将润滑剂供给到离合器构件。通道具有与旋转轴线径向隔开的部分和形成在其中的座，用于与在第一通道中定向的旋转速度敏感阀配合。在第一旋转速度以下，润滑剂压力将阀保持在座椅上，限制润滑剂流向离合器元件。当从动构件旋转高于第一转速时。离心力将阀偏离座椅，允许将润滑剂供应到离合器元件。优选地，提供第二润滑通道，其具有位于内部阀中的阀座，其以第二较高转速选择性地向离合器元件供应润滑剂。为了进一步减少怠速时的脱离离合器牵引力，提供速度敏感的活塞回缩弹簧，以在低发动机转速下增加活塞行程，同时保持关闭空转操作时的最小行程。

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