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    Sequentially actuated servomotor with a pressure differential limiter
    1.
    发明授权
    Sequentially actuated servomotor with a pressure differential limiter 失效
    具有压差限制器的顺序驱动伺服电机

    公开(公告)号：US3921501A

    公开(公告)日：1975-11-25

    申请号：US50299574

    申请日：1974-09-03

    Applicant: BENDIX CORP

    Inventor： ROSBACK RICHARD H

    IPC: B60T13/56 ,  B60T13/57 ,  F15B9/10

    CPC classification number: B60T13/57

    Abstract: A servomotor having a movable wall responsive to a pressure differential sequentially developed between vacuum and air at atmospheric pressure and vacuum and air above atmospheric pressure for supplying a brake actuator with an input force to operate a braking system. A series of poppet valves responsive to the movement of a plunger will control the sequential development of the pressure differential. A relief valve located in the wall will place an upper limit on the development of the pressure differential to assure that the input force that is created will not harm the braking system.

    Abstract translation: 一种伺服电动机，其具有响应于在大气压下的真空和空气之间顺序显影的压差的可移动壁，以及高于大气压力的真空和空气，以向制动致动器提供用于操作制动系统的输入力。 响应于柱塞运动的一系列提升阀将控制压力差的顺序发展。 位于墙壁上的安全阀将对压力差的发展产生上限，以确保所产生的输入力不会损害制动系统。

    Push rod bearing and seal means
    6.
    发明授权
    Push rod bearing and seal means 失效
    推杆轴承和密封装置

    公开(公告)号：US3893379A

    公开(公告)日：1975-07-08

    申请号：US44745974

    申请日：1974-03-01

    Applicant: BENDIX CORP

    Inventor： CRIPE MAXWELL L ,  ROSBACK RICHARD H

    IPC: B60T13/56 ,  B60T13/565 ,  F16J15/18 ,  F01B19/00 ,  F16J3/00

    CPC classification number: B60T13/565

    Abstract: A bearing and seal combination for use in pressurizing section of a servomotor which supplies hydraulic fluid under pressure to a braking system. The bearing and seal combination will align and permit a push rod to move a piston in response to a pressure differential being created across a movable wall. The bearing and seal combination will prevent air from being communicated into the pressurizing section during a first condition and fluid under pressure from escaping from the pressurizing chamber during a second condition.

    Abstract translation: 用于在压力下向制动系统供应液压流体的伺服电机的加压段中的轴承和密封组合。 轴承和密封组合将对准和允许推杆响应于在可移动壁上产生的压差而移动活塞。 轴承和密封组合将在第一状态期间防止空气与加压部分连通，并且在第二状态期间压力下的流体从加压室逸出。

    Poppet valve
    7.
    发明授权
    Poppet valve 失效
    POPPET阀

    公开(公告)号：US3572376A

    公开(公告)日：1971-03-23

    申请号：US3572376D

    申请日：1968-07-31

    Applicant: BENDIX CORP

    Inventor： PFEIFER GUNTHER ,  ROSBACK RICHARD H

    IPC: F16K1/42 ,  B60T13/24 ,  B60T13/57 ,  F16K15/18 ,  F16K17/04

    CPC classification number: B60T13/245 ,  Y10T137/7841 ,  Y10T137/7895 ,  Y10T137/86976

    Abstract: A POPPET VALVE FOR A SERVOMOTOR IS A POWER BRAKING SYSTEM. THE VALVE STEM OF THE POPPET VALVE HAS A SMALL DIAMETER WHICH LOOSELY EXTENDS THROUGH AN OPENING IN THE HOUSING CONNECTING THE CONTROL CHAMBER WITH THE ATMOSPHERIC CHAMBER. A DISC-SHAPED REINFORCED MEMBER HAS A CENTRAL OPENING LOOSELY SURROUNDING THE VALVE STEM. A PERIPHERAL SKIRT ENCLOSES A RUBBER MATERIAL ATTACHED TO THE INNER AND OUTER SURFACES OF THE REINFORCING MEMBER. A CAP MEMBER ATTACHED TO THE VALVE STEM PERMITS A SPRING OPERATIVELY CONNECTED TO A FLANGE SECTION OF THE STEM TO SEAT THE CAP MEMBER ON THE REINFORCING MEMBER WHILE THE REINFORCING MEMBER IS SEATED ON THE OPENING IN THE HOUSING. UPON APPLICATION AND RELEASE OF THE BRAKES, THE VALVE STEM WILL CORRESPONDINGLY MOVE THE REINFORCING MEMBER WITH THE RUBBER-LIKE SURFACES AWAY FROM THE OPENINGS TO PERMIT COMMUNICATION OF ATMOSPHERIC PRESSURE TO THE CONTROL CHAMBER WHERE A CONDUIT CARRIES THIS PRESSURE TO A POWER CHAMBER WHICH OPERATES THE SERVOMOTOR. AFTER THE REINFORCING MEMBER HAS BEEN UNSEATED, THE PERIPHERAL SKIRT WILL PROVIDE A BEARING SURFACE TO GUIDE THE INNER SURFACE INTO SEATING ALIGNMENT WITH THE OPENING IN THE HOUSING WHILE THE CENTRAL OPENING IN THE REINFORCING MEMBER WILL PERMIT LATERAL MOVEMENT WITH RESPECT TO THE VALVE STEM TO ASSURE SEATING OF THE CAP MEMBER.

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