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31. 发明授权

US4676349A Fluid pressure control system having a pressure cutback device 失效
标题翻译：具有压力调节装置的流体压力控制系统
公开(公告)号：US4676349A
公开(公告)日：1987-06-30
申请号：US836930
申请日：1986-03-06
申请人： Alan R. Coutant
发明人： Alan R. Coutant
IPC分类号： B60W10/00 , B60W10/10 , F16D48/02 , F16H61/02 , F16H61/06 , F16H61/08 , F16H61/30 , F16H63/00 , F16H63/02 , F16H63/24 , F16H63/30 , F16D25/11 , F16D25/00
CPC分类号： F16H61/065 , F16D48/02 , F16D48/0206 , F16D2048/0221 , F16D2500/1045 , F16D2500/3024 , F16D2500/3166 , F16D2500/50239 , F16D2500/7041 , F16H61/0272 , Y10T74/19251
摘要： A fluid pressure control system including a modulating pressure relief valve is normally needed in a power transmission having clutches that require smooth engagement. It is also desirable in many systems to maintain a difference in fluid pressure levels between the fluid in different selected clutches, such as speed range and directional clutches, during initial engagement. This arrangement ensures that the selected directional clutch engages only after the selected speed range clutch engages so that only the selected directional clutch absorbs the inertial load. In order to conserve horsepower, reduce fluid leakage, and thereby improve system efficiency and component reliability, it is also desirable to reduce the fluid pressure levels in the system once the selected clutches are fully engaged. The present fluid pressure control system provides a pressure cutback device which efficiently reduces the fluid pressures in the system to minimal but adequate levels soon after complete engagement of the selected clutches.
摘要翻译：在具有需要平滑接合的离合器的动力传动装置中，通常需要包括调节压力释放阀的流体压力控制系统。在许多系统中，还希望在初始接合期间保持不同选定离合器中的流体（例如速度范围和方向离合器）之间的流体压力水平的差异。这种布置确保所选择的方向离合器仅在所选择的速度范围离合器接合之后接合，使得只有所选择的方向离合器吸收惯性负载。为了节省马力，减少流体泄漏，从而提高系统效率和部件可靠性，一旦所选择的离合器完全接合，还希望降低系统中的流体压力水平。本流体压力控制系统提供了一种压力切断装置，其在所选择的离合器完全接合之后不久即可有效地将系统中的流体压力降低到最小但足够的水平。

32. 发明授权

US4423644A Multi-speed planetary differential 失效
标题翻译：多速行星差速器
公开(公告)号：US4423644A
公开(公告)日：1984-01-03
申请号：US248743
申请日：1981-04-01
申请人： Alan R. Coutant
发明人： Alan R. Coutant
IPC分类号： F16H3/62 , F16H3/66 , F16H37/04 , F16H37/08 , F16H1/38
CPC分类号： F16H3/62 , F16H3/66 , F16H37/04 , F16H37/0813 , F16H2200/201 , F16H2200/2097 , Y10T74/19084
摘要： A multi-speed planetary differential (10) for a vehicle or the like is disclosed which has first and second interconnected planetary gear sets (12,14) with first and second output members (18,20) individually connected to first ones of the elements (26,28,30,34,36,38) of the respective planetary gear sets (12,14). Second ones of the elements (26,28,30,34,36,38) of the planetary gear sets (12,14) are interconnected, and the remaining third one of the elements (34,36,38) of the second planetary gear set (14) is held stationary. Advantageously, planetary means (22) are provided for driving an input member (16) connected to the remaining third one of the elements (26,28,30) of the first planetary gear set (12) at either of two speeds. The planetary means (22) includes a third planetary gear set (46) compactly disposed on a common axis (24) with the first and second planetary gear sets (12,14), and the differential (10) continually drives the output members (18,20) at equal torque levels in each speed.
摘要翻译：公开了一种用于车辆等的多速行星差速器（10），其具有第一和第二相互连接的行星齿轮组（12,14），其中第一和第二输出构件（18,20）分别连接到元件的第一个（26,148,30,34,36,38）。行星齿轮组（12,14）的第二个元件（26,28,30,34,36,38）相互连接，而第二行星齿轮组件的剩余的第三个元件（34,36,38）齿轮组（14）保持静止。有利地，行星装置（22）被设置用于以两种速度中的任一种驱动连接到第一行星齿轮组（12）的其余第三个元件（26,28,30）的输入构件（16）。行星装置（22）包括紧密地设置在具有第一和第二行星齿轮组（12,14）的公共轴线（24）上的第三行星齿轮组（46），差速器（10）连续地驱动输出构件 18,20）在每个速度下以相等的扭矩水平。

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