Fluidically controlled pressure switching valve for a vehicle brake system and vehicle brake system
    43.
    发明授权
    Fluidically controlled pressure switching valve for a vehicle brake system and vehicle brake system 有权
    用于车辆制动系统和车辆制动系统的流体控制压力切换阀

    公开(公告)号:US09108606B2

    公开(公告)日:2015-08-18

    申请号:US13941773

    申请日:2013-07-15

    申请人: Robert Bosch GmbH

    IPC分类号: B60T13/16 B60T15/36

    摘要: The disclosure relates to a fluidically controlled pressure switching valve for a vehicle brake system including a valve chamber, which is arranged in a valve interior and into which an inlet opening and an outlet opening open, and a valve closing body, which is movable in the valve interior and which comprises a piston, defining a first piston surface and a second piston surface, and including a closing element. The valve closing body is movable in accordance with a pressure difference between a pressure acting on the first piston surface and a pressure acting on the second piston surface, against the force of a setting spring arranged in the valve interior, between a closed position, in which a fluid connection between the inlet opening and the outlet opening is interrupted, and an open position, in which the fluid connection between the inlet opening and the outlet opening is open.

    摘要翻译: 本发明涉及一种用于车辆制动系统的流体控制的压力切换阀,其包括设置在阀内部并且入口开口和出口开口打开的阀室,以及阀关闭体,该阀室可在 阀门内部,其包括限定第一活塞表面和第二活塞表面的活塞,并且包括闭合元件。 阀关闭体可以根据作用在第一活塞表面上的压力与作用在第二活塞表面上的压力之间的压差相对于设置在阀内部的调节弹簧的力在可关闭位置之间移动 所述入口开口和所述出口之间的流体连接被中断,以及打开位置,所述入口开口和所述出口之间的流体连接打开。

    PRESSURE CONTROL VALVE WITH INTEGRATED PRESSURE COMPENSATION FUNCTION AND CHECK VALVE FUNCTION
    44.
    发明申请
    PRESSURE CONTROL VALVE WITH INTEGRATED PRESSURE COMPENSATION FUNCTION AND CHECK VALVE FUNCTION 有权
    一体式压力补偿功能和检查阀功能的压力控制阀

    公开(公告)号:US20150224973A1

    公开(公告)日:2015-08-13

    申请号:US14426067

    申请日:2013-09-09

    IPC分类号: B60T15/18 B60T15/02

    摘要: A pneumatic pressure control valve for a brake control system of a rail vehicle having at least three pressure chambers supplied with compressed air and are disposed in a housing of the pressure control valve, a first pressure chamber sealed by a piston and by a valve seat arranged on a tappet, subjected to a braking pressure and fluidically connected to a second pressure chamber via a conduit in the tappet to relieve pressure, a further third pressure chamber supplied with a supply pressure, arranged between the two pressure chambers and the sealing between the third pressure chamber and the second pressure chamber is achieved by a flat membrane arranged in the third pressure chamber and which enables the tappet to be axially displaced, the flat membrane has a circular opening arranged substantially centrally to provide a check function and through which the tappet extends in the axial direction.

    摘要翻译: 一种用于轨道车辆的制动控制系统的气动压力控制阀,其具有至少三个供应有压缩空气的压力室,并设置在压力控制阀的壳体中,第一压力室由活塞密封,并且被阀座排列 在挺杆上经受制动压力并且经由挺杆中的导管流体地连接到第二压力室以释放压力,另外设置在两个压力室之间的供给压力的第三压力室和第三压力室之间的密封 压力室和第二压力室通过布置在第三压力室中的平膜实现,并且使得挺杆能够轴向移位,平膜具有大致中心布置的圆形开口,以提供检查功能,并且挺杆延伸 在轴向上。

    Spring brake modulating relay valve
    47.
    发明申请
    Spring brake modulating relay valve 有权
    弹簧制动调节继电阀

    公开(公告)号:US20040119332A1

    公开(公告)日:2004-06-24

    申请号:US10646349

    申请日:2003-08-22

    IPC分类号: B60T013/00 B60T015/04

    摘要: A combined spring brake modulating relay valve integrates the functions of a relay valve and a modulating valve. The housing includes a valve assembly movable in response to air pressure provided to selected ports in the housing. A relay piston selectively communicates with a control port and a primary brake circuit port. A modulating piston includes surfaces selectively pressurized by the primary brake circuit port and a secondary brake circuit port. This modulates the pressure from the delivery port to thereby selectively apply the associated spring brakes if a failure is detected at the primary brake circuit port. The exhaust member selectively controls communication between the supply and delivery ports as necessary.

    摘要翻译: 组合弹簧制动调节继电器阀集成了继电阀和调节阀的功能。 壳体包括可以响应于提供到壳体中的选定端口的空气压力而移动的阀组件。 继电器活塞选择性地与控制端口和主制动回路端口连通。 调节活塞包括由主制动回路端口选择加压的表面和次级制动回路端口。 如果在主制动回路端口检测到故障,则调节来自输送口的压力,从而选择性地施加相关的弹簧制动器。 排气构件根据需要选择性地控制供料口和输送口之间的连通。

    Relay valve with integral biased double check valve
    48.
    发明授权
    Relay valve with integral biased double check valve 有权
    带积分偏压双止回阀的继电器阀

    公开(公告)号:US06179391B2

    公开(公告)日:2001-01-30

    申请号:US09240805

    申请日:1999-02-01

    IPC分类号: B60T1704

    CPC分类号: B60T15/20 B60T13/261

    摘要: A braking system is able to meet emergency stopping distance requirements associated with a failed rear axle service control line by modifying the service relay valve. The service relay valve incorporates a biased double check valve so that an additional or secondary control line from the foot control valve communicates with the service port of the relay valve. If the primary circuit is operational, a biasing force imposed on the double check valve permits normal operation via the primary service line. On the other hand, if the primary service line is lost, the biasing force is overcome and communication between the secondary service line and the service port of the relay valve is established.

    摘要翻译: 制动系统能够通过修改维修继动阀来满足与故障后桥服务控制线相关联的紧急停止距离要求。 维修继电阀包括一个偏压的双止回阀,使得来自脚踏控制阀的附加或二次控制管路与中继阀的维修口连通。 如果主电路可操作,施加在双止回阀上的偏压力允许通过主要服务线正常操作。 另一方面,如果主要业务线路丢失,则克服偏置力并且建立二级业务线路与中继阀的业务端口之间的通信。

    Brake control apparatus for railway cars

    公开(公告)号:US4202583A

    公开(公告)日:1980-05-13

    申请号:US939651

    申请日:1978-09-05

    申请人: William R. King

    发明人: William R. King

    IPC分类号: B60T8/18 B60T15/20

    摘要: A brake control apparatus for railway cars having sprung and unsprung portions is interposed between a brake pressure supply line and a brake cylinder line. A first chamber is connected to the brake pressure supply line and a second chamber is connected to the brake cylinder line. The chambers are abutted by surfaces having different cross-sectional areas of a diaphragm which is biased. A first valve responsive to positioning of the diaphragm, and a second valve responsive to positioning of a strut in a strut cylinder, effect first and second predetermined relationships between pressure drop in the brake pressure supply line and pressure drop in the brake cylinder line. The strut cylinder, mounted between the sprung and unsprung portions of the railway car, may be adapted to sense partially loaded as well as fully loaded or unloaded conditions.