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1. 发明申请

WO1998009084A1 ELECTRICALLY ACTUATED HYDRAULIC POWER CYLINDER 审中-公开
标题翻译：电动液压动力缸
公开(公告)号：WO1998009084A1
公开(公告)日：1998-03-05
申请号：PCT/US1997014178
申请日：1997-08-29
申请人： KELSEY HAYES COMPANY , WEIGERT, Thomas , FERGER, Robert, L. , KINGSTON, Andrew, W. , OLIVERI, Salvatore
发明人： KELSEY HAYES COMPANY
IPC分类号： F15B07/10
CPC分类号： B60T13/745 , F15B7/08 , F15B15/06 , F16D2066/003 , F16D2121/24 , F16D2125/10 , F16D2125/40 , F16D2127/06
摘要： An electrically actuated hydraulic power cylinder (10, 100, 200) for use in a vehicle braking system. The power cylinder includes an electric motor (12, 102, 202), a rotary-to-linear actuator for converting rotary motion of the electric motor to a linear motion, and a hydraulic cylinder. In a preferred embodiment, the rotary-to-linear actuator is a roller screw assembly (14, 104, 204). The roller screw assembly converts rotational motion generated by the motor into axial movement of a piston which is disposed within the hydraulic cylinder. The movement of the piston pressurizes a volume of fluid. The pressurized fluid flows through an outlet port (20) connected to either a single wheel brake cylinder (21) or a plurality of wheel brake cylinders, thereby actuating the associated wheel cylinder. In a specific embodiment of the invention, the roller screw assembly is incorporated into the internal structure of the motor for compactness and weight reduction. Also, the hydraulic cylinder may be integrated into a wheel brake assembly for compactness and weight reduction.
摘要翻译：一种用于车辆制动系统的电动液压动力缸（10,100,200）。动力缸包括电动机（12,102,202），用于将电动机的旋转运动转换为直线运动的旋转线性致动器和液压缸。在优选实施例中，旋转到线性致动器是滚子丝杠组件（14,104,204）。滚子丝杠组件将由马达产生的旋转运动转换成设置在液压缸内的活塞的轴向运动。活塞的运动加压一定体积的流体。加压流体流过连接到单轮制动缸（21）或多个车轮制动缸的出口（20），从而致动相关的轮缸。在本发明的一个具体实施例中，滚子丝杠组件被结合到马达的内部结构中，用于紧凑和重量减轻。此外，液压缸可以集成到车轮制动组件中，用于紧凑和重量减轻。

2. 发明申请

WO1981000599A1 VOLUME COMPENSATION FOR HYDRAULIC CIRCUITS 审中-公开
标题翻译：液压电路体积补偿
公开(公告)号：WO1981000599A1
公开(公告)日：1981-03-05
申请号：PCT/US1979000645
申请日：1979-08-23
申请人： SINDELAR E
IPC分类号： F15B07/10
CPC分类号： F15B7/10
摘要： A hydraulic circuit (32), for example, remotely controls a work element (14) and contains first apparatus (34), such as a master cylinder (42), which passes a fluid signal through a first or second fluid pathway (38, 40) in response to an input signal. Second apparatus (36), such as a slave cylinder (44), delivers an output signal in response to the fluid signal for controlling the work element (14). In such a circuit, temperature variation can cause fluid volume changes which disrupt synchronized operation of, for example, the master and slave cylinders (42, 44). Third apparatus (74) positions the fluid pathways (38, 40) in fluid communication with a tank (28) in the absence of the fluid signal. If the signal passes through one pathway (38, 40), that pathway (38, 40) is blocked from the tank (28) and the other pathway (40, 38) is positioned in communication with the tank (28). Thus, a fluid pathway (38, 40) not pressurized for transmitting a fluid signal receives oil volume compensation for substantially overcoming problems of temperature changes.
摘要翻译：例如，液压回路（32）远程地控制工件（14），并且包含第一装置（34），诸如主缸（42），其将流体信号通过第一或第二流体通路（38， 40）。诸如从动缸（44）的第二装置（36）响应于用于控制工作元件（14）的流体信号输送输出信号。在这样的电路中，温度变化可导致液体体积的变化，这会导致例如主汽缸（42,44）的同步运转。在不存在流体信号的情况下，第三装置（74）将流体路径（38,40）定位成与罐（28）流体连通。如果信号通过一个通路（38,40），则该通道（38,40）被从罐（28）中被阻挡，另一个通路（40,38）被定位成与罐（28）连通。因此，未加压用于传送流体信号的流体通路（38,40）接收油量补偿，以基本克服温度变化的问题。

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