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421 条记录 (耗时 0.019 秒)

    Balanced servomotor valve
    31.
    发明授权
    Balanced servomotor valve 失效
    平衡伺服电机阀

    公开(公告)号：US3972191A

    公开(公告)日：1976-08-03

    申请号：US603430

    申请日：1975-08-11

    申请人： Frederick G. Grabb

    发明人： Frederick G. Grabb

    IPC分类号： B60T13/56 ,  B60T11/224 ,  B60T13/565 ,  F15B7/00

    CPC分类号： B60T13/565 ,  B60T11/224

    摘要： In a servomotor having a first diameter piston concentric to a second diameter piston for supplying a braking system with a first pressurizing force and a second pressurizing force in response to an operator input. A transfer valve has a first face and a second face which are located on opposite sides of a radial bore in the second piston to receive a first pressurizing force. The transfer valve has an axial passageway therethrough which communicates relief or reservoir pressure to the first and second faces of the transfer valve to provide a balance pressure force on the same. A spring holds the second face of the transfer valve against a seat to prevent communication of the first pressurizing force into the relief chamber. When a predetermined first pressurizing force is obtained, the actuator in response to an operator will overcome the spring and move the second face away from the seat to allow the first pressurizing force associated with the first piston to be proportionally communicated into the relief chamber. As the first pressurizing force is communicated into the relief chamber, the output from the servomotor is transferred to the second piston to provide an additional operational or second pressurizing force to activate the wheel brakes of the vehicle.

    摘要翻译： 在具有与第二直径活塞同心的第一直径活塞的伺服电动机中，用于响应于操作员输入向第一加压力和第二加压力供应制动系统。 转换阀具有位于第二活塞中的径向孔的相对侧上以接收第一加压力的第一面和第二面。 转换阀具有穿过其的轴向通道，其将释放或储存器压力与转移阀的第一和第二表面连通，以在其上提供平衡压力。 弹簧将转移阀的第二面抵靠在座上，以防止第一加压力进入释放室。 当获得预定的第一加压力时，响应于操作者的致动器将克服弹簧并将第二面移离座，以允许与第一活塞相关联的第一加压力成比例地连通到释放室中。 当第一加压力传递到释放室中时，来自伺服电动机的输出被传递到第二活塞，以提供额外的操作或第二加压力来启动车辆的车轮制动器。

    Anti-cup cutting master cylinder
    32.
    发明授权
    Anti-cup cutting master cylinder 失效
    反杯切割主缸

    公开(公告)号：US3955371A

    公开(公告)日：1976-05-11

    申请号：US524962

    申请日：1974-11-18

    申请人： Richard C. Bueler

    发明人： Richard C. Bueler

    IPC分类号： B60T11/224 ,  F15B7/00

    CPC分类号： B60T11/224

    摘要： A master cylinder having a secondary piston for absorbing rapid initial pressure increases in proportion to the stroke of the primary piston. The master cylinder includes a housing having a first cylinder formed therein. A first piston is movable within the first cylinder. A second cylinder is formed in the first piston. A second piston is movable within the second cylinder.

    摘要翻译： 具有用于吸收快速初始压力的次级活塞的主缸与主活塞的行程成比例地增加。 主缸包括其中形成有第一气缸的壳体。 第一活塞可在第一气缸内移动。 在第一活塞中形成第二圆筒。 第二活塞可在第二气缸内移动。

    Master cylinder
    33.
    发明授权
    Master cylinder 失效
    主缸

    公开(公告)号：US3938333A

    公开(公告)日：1976-02-17

    申请号：US548356

    申请日：1975-02-10

    申请人： Thomas P. Mathues

    发明人： Thomas P. Mathues

    IPC分类号： B60T11/20 ,  B60T11/224 ,  B60T17/22 ,  B60T11/08

    CPC分类号： B60T17/226 ,  B60T11/20 ,  B60T11/224

    摘要： A dual master cylinder has a secondary piston which when actuated pressurizes fluid in two secondary chamber sections with one chamber section increasing pressure at a faster rate than the other as the piston is stroked. The piston has passage means therein interconnecting the two chamber sections, a proportioning valve mechanism in the passage means acting to proportion fluid pressure from the one chamber section to the other chamber section after a predetermined pressure differential exists in the two chamber sections. A shuttle piston also mounted in the secondary piston is responsive to pressure generated in the one secondary chamber section and in the primary pressurizing chamber between the primary and secondary master cylinder pistons. If a pressure loss is suffered in the primary pressurizing chamber during master cylinder actuation, the shuttle piston moves to render the proportioning valve mechanism inoperative and permit substantially unrestricted pressure flow from the one secondary chamber section to the other secondary chamber section and thence to the fluid brake circuit connected thereto. The shuttle piston also has suitable cams which actuate a cam follower arrangement mounted on the secondary piston which in turn actuates a warning switch mechanism when the shuttle piston is moved in either direction because of a pressure loss in one of the two chambers to which it is pressure connected. The primary pressurizing chamber has an outlet in which a metering valve mechanism is provided, the pressurized fluid then passing to another fluid brake circuit. A modified embodiment of the invention uses a proportioner piston between a single secondary pressurizing chamber and an outlet chamber, with one end of the shuttle piston also functioning to define the small diameter portion of the proportioner mechanism.

    摘要翻译： 双主缸具有次级活塞，当致动器在两个次级室部分中加压流体时，一个腔室部分在活塞被抚摸时以比另一个室部分更快的速度增加压力。 活塞在其中连接有两个室部分的通道装置，在两个室部分中存在预定的压力差之后，通道装置中的比例阀机构用于使从一个室部分到另一个室部分的流体压力成比例。 还安装在次级活塞中的梭式活塞响应于一次二级室部分和初级和次级主缸活塞之间的主加压室中产生的压力。 如果在主缸致动期间在初级加压室中遭受压力损失，则梭式活塞移动以使比例阀机构不起作用并且允许基本上无限制的压力从一个二级室部分到另一个二级室部分流动， 制动电路与其连接。 往复活塞还具有合适的凸轮，该凸轮致动安装在次级活塞上的凸轮从动装置，该凸轮随动装置随后在往复运动活塞沿任一方向移动时致动警告开关机构，因为两个腔室中的一个中的压力损失 压力连接。 主加压室具有出口，其中设有计量阀机构，加压流体然后通过另一流体制动回路。 本发明的改进的实施例使用在单个二次加压室和出口室之间的比例活塞，梭梭活塞的一端还用于限定比例器机构的小直径部分。

    Multiple stage master cylinder
    34.
    发明授权
    Multiple stage master cylinder 失效
    多级主缸

    公开(公告)号：US3844121A

    公开(公告)日：1974-10-29

    申请号：US33342373

    申请日：1973-02-16

    申请人： EATON CORP

    发明人： GRIESENBROCK K

    IPC分类号： B60T11/10 ,  B60T11/224 ,  F16D67/02

    CPC分类号： B60T11/103 ,  B60T11/224

    摘要： A master cylinder for a vehicle brake incorporating separate filling and braking pressure stages, the filling stage employing a relatively large diameter piston with short pedal stroke and the braking stage employing a relatively smaller diameter piston with a relatively longer stroke. A clutching stage operable during the filling stage provides single pedal clutch and brake actuation for inching operations. One embodiment provides integral braking, filling and clutching stages with mechanical actuation of the filling stage, while an alternative embodiment provides a separate filling stage with hydraulic actuation.

    摘要翻译： 用于车辆制动器的主缸，其包括单独的填充和制动压力级，填充阶段采用具有短踏板冲程的相对较大直径的活塞，以及采用具有较长行程的相对较小直径的活塞的制动级。 在充填阶段可操作的离合台提供用于微动作用的单踏板离合器和制动器致动。 一个实施例提供了具有机械致动填充台的整体制动，填充和离合阶段，而替代实施例提供具有液压致动的单独的填充阶段。

    Hydraulic linear amplifier apparatus for power brake structures
    35.
    发明授权
    Hydraulic linear amplifier apparatus for power brake structures 失效
    液压线性放大器装置用于动力制动结构

    公开(公告)号：US3630027A

    公开(公告)日：1971-12-28

    申请号：US3630027D

    申请日：1969-08-18

    申请人： ANDREW A LAMBERT

    发明人： LAMBERT ANDREW A

    IPC分类号： B60T11/224 ,  B60T13/12 ,  F15B7/00 ,  F16K31/12

    CPC分类号： B60T13/12 ,  B60T11/224

    摘要： This invention is hydraulic linear amplifier apparatus operable through fluid or direct mechanical linkage structures to provide an increased hydraulic force for application against brakeshoe structures from a given available actuator force. More particularly, this invention is a hydraulic linear amplifier apparatus having a primary assembly operable through fluid pressure to actuate a secondary amplifier assembly through cooperating with control valve assemblies to progressively achieve an increased fluid force applied to operate the brakeshoe drum members.