Failsafe antiskid control for fluid pressure brake system
    61.
    发明授权
    Failsafe antiskid control for fluid pressure brake system 失效
    用于流体压力制动系统的失效防滑控制

    公开(公告)号:US3866982A

    公开(公告)日:1975-02-18

    申请号:US45524874

    申请日:1974-03-27

    CPC分类号: B60T8/3605

    摘要: A means for operating an inlet modulator valve in an antiskid brake control system via either its normal energizing circuit or via a diode in a parallel circuit that is energized when an outlet modulator valve is operated during a cycle of wheel skid control. This assures operation of the inlet modulator any time the outlet modulator is operated so that inadvertent supply of brake pressure via the inlet modulator is prevented when a malfunction renders the inlet modulator inoperative via its normal energizing circuit at the time the outlet modulator is venting brake pressure, thus safeguarding the system against depletion of supply pressure and consequent loss of braking ability following completion of the wheel skid control cycle.

    摘要翻译: 一种用于在防抱死制动控制系统中通过其正常激励电路或通过并联电路中的二极管来操作入口调节阀的装置,当并联电路在出现调节阀在轮滑动控制的循环期间操作时被激励。 这样就可以在出口调节器工作的任何时间确保入口调制器的操作,从而当故障使得入口调节器在出口调节器通风制动压力时通过其正常通电电路不能正常工作,防止通过入口调制器无意地供应制动压力 ,从而保护系统不会损坏供应压力,从而在轮式滑轨控制周期完成后保证制动能力的丧失。

    Anti-skid control means for air pressure braking systems
    62.
    发明授权
    Anti-skid control means for air pressure braking systems 失效
    用于空压制动系统的防滑控制装置

    公开(公告)号:US3844623A

    公开(公告)日:1974-10-29

    申请号:US33364673

    申请日:1973-02-20

    申请人: PARSONS D PACKER M

    发明人: PACKER M PARSONS D

    摘要: The invention relates to fluid pressure braking systems for vehicles in which air pressure is used to produce the brakeapplying force in brake operating member, and the brake-applying force is reduced in response to the operation of a skid-sensing means to relieve the braking so long as the tendency to skid exists. The invention provides a valve mechanism for insertion in such a system which controls the connection of the brake operating member to the pressure source through a driver''s control valve and to exhaust, the valve mechanism including a first valve which connects the brake operating member selectively to the pressure source or to exhaust, a second valve, on the side of the first valve to which the pressure source is connected, which provides a degree of restriction of air flow to the brake operating member decreasing with increase of pressure on the downstream side of the first valve, and a pilot valve operated by the skid sensing member to control the first valve.

    摘要翻译: 本发明涉及用于车辆的流体压力制动系统,其中使用空气压力来产生制动操作构件中的制动施加力,并且制动器施加力响应于滑动感测装置的操作而减小,以减轻 只要存在滑动的倾向就制动。 本发明提供了一种用于插入这种系统中的阀机构,其通过驾驶员的控制阀控制制动操作构件与压力源的连接并排出,该阀机构包括将制动操作构件选择性地连接到第一阀的第一阀 压力源或排出第二阀,在与压力源连接的第一阀的一侧上,其提供了对制动操作构件的气流的限制程度,随着压力源的下游侧的压力的增加而减小 第一阀和由滑动传感构件操作以控制第一阀的先导阀。

    Valve Unit for Modulating Pressure in a Compressed-Air Brake System

    公开(公告)号:US20180345926A1

    公开(公告)日:2018-12-06

    申请号:US15777849

    申请日:2016-11-07

    申请人: WABCO EUROPE BVBA

    IPC分类号: B60T8/36 F16K7/17 F16K31/126

    摘要: A valve unit for modulating pressure in a compressed-air brake system comprises an inlet valve (6) and an outlet valve (7) configured as diaphragm valves, a brake pressure output (4) configured to be connected to or shut off from a brake pressure input (3) or a vent output (5), two pilot valves (8, 9) configured as 3/2-way solenoid valves, and a respective control chamber (31, 32) adjacent to the diaphragm (17, 18) of the diaphragm valves (6, 7). The diaphragms (17, 18) are each clamped between two housing parts (11, 14; 11′, 14′) via a respective ring bead (22, 23) placed in a housing-side ring groove (20, 21; 20′, 21′). In order to avoid damaging the diaphragms (17, 18), an annular continuous or partially interrupted recess (54) is arranged in the ring groove (20, 21) or immediately adjacent to the ring groove to receive displaced bead material from the diaphragm (17).

    VALVE UNIT FOR MODULATING THE PRESSURE IN A PNEUMATIC BRAKE SYSTEM

    公开(公告)号:US20170253224A1

    公开(公告)日:2017-09-07

    申请号:US15506029

    申请日:2015-08-06

    申请人: WABCO GmbH

    IPC分类号: B60T8/34 B60T8/36

    摘要: A valve unit (1, 1′) for modulating the pressure in a pneumatic brake system, has a brake pressure inlet (3), a brake pressure outlet (4) and a venting outlet (5), a pneumatically controllable main valve (6, 7) and a pilot valve (8, 9), embodied as a solenoid valve and assigned to the main valve (6, 7), which are arranged in a valve housing (2, 2′) subdivided by a plane of division (10), into a main housing (11, 11′) and a housing cover (12). Forfixing the housing cover (12) on the main housing (11, 11′) a bracket element (62.1) is fixed to the main housing (11, 11′) and bears with a largely planar pressure plate (63) generating an elastic prestressing force on a planar outside wall (64) of the housing cover (12) oriented parallel to the plane of division (10) of the valve housing (2, 2′).

    VALVE UNIT FOR MODULATING PRESSURE IN AN AIR-BRAKE SYSTEM

    公开(公告)号:US20170253223A1

    公开(公告)日:2017-09-07

    申请号:US15505458

    申请日:2015-08-06

    申请人: WABCO GmbH

    摘要: The invention concerns a valve unit (1) for modulating pressure in a compressed air braking system, with a brake pressure input (3), a brake pressure output (4), and a purge output (5), an inlet valve (6) configured as a diaphragm valve, an outlet valve (7) configured as a diaphragm valve, and with, for each diaphragm valve (6, 7), respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing (2), which is divided by a division plane (10) that is largely horizontal in the installation position into a base housing (11) and a housing cover (12).For effective sound damping of the compressed air emerging into the environment when the outlet valve (7) is open, the valve unit (1) at the purge output (5) is provided with a silencer (75) which comprises a largely cylindrical silencer housing (76) with an inlet opening (77), a calming chamber (78) arranged radially on the inside, a large outlet opening (79) and a silencer insert (80.1) arranged upstream of the outlet opening (79) inside the silencer housing (76) and made of an air-permeable and sound-deadening material, and which (75) is attached to the base housing (11) with base walls (83, 84) oriented parallel to the division plane (10) between the brake pressure input (3) and the brake pressure output (4).

    VALVE UNIT FOR MODULATING PRESSURE IN AN AIR-BRAKE SYSTEM

    公开(公告)号:US20170217412A1

    公开(公告)日:2017-08-03

    申请号:US15329754

    申请日:2015-08-06

    申请人: WABCO GmbH

    IPC分类号: B60T8/36 B60T13/26

    摘要: A valve unit (1.1, 1.2, 1.3) for modulating pressure in a compressed air braking system has an inlet valve (6) configured as a diaphragm valve, an outlet valve (7) configured as a diaphragm valve, and respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing (2), which is divided by a division plane (10) that is largely horizontal in the installation position into a base housing (11) and a housing cover (12). The precontrol valves (8, 9) are arranged in the housing cover (12) in the longitudinal direction (13), and the housing cover (12) has a centrally arranged magnet module (20) and two air guide modules (23, 24) adjacent to the magnet module (20) in the longitudinal direction (13) and connected via a single connecting element (45) both to each other and to the base housing (11).