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公开(公告)号：US10654461B2
公开(公告)日：2020-05-19
申请号：US15833420
申请日：2017-12-06
摘要： A brake distributor valve for a Russian railway vehicle includes a body defining a brake pipe passageway configured to be in fluid communication with a brake pipe, a reservoir passageway configured to be in fluid communication with a reservoir, and a reference pressure passageway configured to be in fluid communication with a reference pressure source. The brake distributor valve includes a service accelerated release valve having a valve member with a first position where the brake pipe passageway is isolated from the reservoir passageway and a second position where the brake pipe passageway is in fluid communication with the reservoir passageway. The valve member is configured to supply pressure from the reservoir passageway to the brake pipe passageway during a brake release event, where the valve member is actuated between the first and second positions based on a pressure within the reference pressure passageway.
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公开(公告)号：US10449940B2
公开(公告)日：2019-10-22
申请号：US15754432
申请日：2016-09-02
申请人： VHIT S.p.A.
发明人： Leonardo Cadeddu
IPC分类号： B60T13/14 , B60T7/12 , B60T13/24 , B60T13/38 , B60T15/38 , B60T15/42 , B60T17/04 , B60T17/22 , F15B7/08 , F16K31/122
摘要： A pre-filling device for a braking system. The pre-filling device includes a pre-filling channel, a pre-filling pressure being inside the channel when the braking system is in a rest and hydro-boost position, and a mechanical valve configured to be opened following a transition from the rest and hydro-boost position to a working position of the braking system; and a hydraulic valve cooperating with the mechanical valve setting the pre-filling pressure inside the channel. The hydraulic valve includes in a first area, facing the mechanical valve, a hole communicating with the channel, and in a second area, hydraulically isolated from the first area, a preloaded resilient element in a chamber held at atmospheric pressure. The hydraulic valve is configured to be connected or not to be connected, by a reciprocating movement inside the channel, to a hydro-booster device and to keep a predetermined pre-filling pressure upon varying of the hydro-boost pressure.
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公开(公告)号：US20190176791A1
公开(公告)日：2019-06-13
申请号：US16202750
申请日：2018-11-28
摘要： A quick service limiting valve includes a housing defining an interior chamber, a brake pipe passageway, and a brake cylinder passageway, a valve member received within the interior chamber of the housing, with the valve member including a body, a first seal, a second seal, and a valve spring. The body of the valve member defines a valve passageway, with the valve member having a first position where the valve passageway allows fluid communication between the brake pipe passageway and the brake cylinder passageway and a second position where the brake pipe passageway is isolated from the brake cylinder passageway. The valve further includes a follower assembly received within the interior chamber of the housing, with the follower assembly including a body, a first check valve, a second check valve, a diaphragm, and a follower spring.
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公开(公告)号：US20180257627A1
公开(公告)日：2018-09-13
申请号：US15452044
申请日：2017-03-07
发明人： Daniel Brushwood
CPC分类号： B60T15/42 , B60T13/268 , B60T13/665 , B60T15/024
摘要： A control valve includes a diaphragm with a flow path with a predetermined cross-section from a brake pipe to a first side of the diaphragm and another flow path having another predetermined cross-section from a second side of the diaphragm to atmosphere. A dump valve prevents flow from the brake pipe to atmosphere. A method for operating a control valve includes supplying brake pipe air to a first side of a diaphragm through a flow path having a predetermined cross-section and permitting or preventing reference air flow to atmosphere through another flow path having another predetermined cross-section. The method further includes supplying reference air to a dump valve that prevents brake pipe air flow to atmosphere.
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公开(公告)号：US09555790B2
公开(公告)日：2017-01-31
申请号：US14402317
申请日：2013-05-24
申请人： WABTEC HOLDING CORP.
IPC分类号： F16K11/065 , B60T15/02 , B60T15/42
CPC分类号： B60T15/021 , B60T15/42
摘要： A main piston bushing for a service valve portion of a brake control valve includes a cylindrical sidewall defining a central passageway extending longitudinally through the main piston bushing, the central passageway being surrounded by an internal surface of the cylindrical sidewall. The central passageway is configured to receive the main piston assembly of the service valve portion. The internal surface of the cylindrical sidewall includes a first ramp and a second ramp defined therein, the first ramp and the second ramp being configured to engage a portion of the main piston assembly of the service valve portion to restrain movement of the main piston assembly.
摘要翻译： 用于制动控制阀的维修阀部分的主活塞衬套包括圆柱形侧壁，其限定纵向延伸穿过主活塞衬套的中心通道，中心通道被圆柱形侧壁的内表面包围。 中心通道构造成接纳维修阀部分的主活塞组件。 圆柱形侧壁的内表面包括第一斜面和限定在其中的第二斜面，第一斜面和第二斜面构造成接合维修阀部分的主活塞组件的一部分以限制主活塞组件的运动。
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公开(公告)号：US5480218C1
公开(公告)日：2001-05-01
申请号：US30679094
申请日：1994-09-15
发明人： HART JAMES E , SICH GARY M
CPC分类号： B60T17/04 , B60T15/42 , B60T17/043 , B60T17/228 , F16L39/00 , Y10T137/87153
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公开(公告)号：US6095495A
公开(公告)日：2000-08-01
申请号：US313384
申请日：1999-05-18
CPC分类号： B60T15/42 , B60T17/043
摘要： A conversion or extension kit to be used with standard valves using standard elements to provide access to a manual valve at the side of the pipe bracket. The valve mounted to the pipe bracket includes a stem connected to the valve element and having a key. A handle has an opening for mating with a key. An extension shaft is provided having a first end for mating with the key of the stem and having a second end for mating with the opening of the handle. An additional bracket or handle bracket is provided and mounted to the control valve directly or via the manual valve. The extension shaft is pivotally mounted to the handle bracket.
摘要翻译： 与标准阀门一起使用的转换或扩展套件，使用标准元件可以访问管道支架侧面的手动阀门。 安装到管支架的阀包括连接到阀元件并具有钥匙的杆。 手柄具有用于与钥匙配合的开口。 提供延伸轴，其具有用于与杆的键配合的第一端，并具有用于与手柄的开口配合的第二端。 提供了一个附加的支架或手柄支架，并直接或通过手动阀安装到控制阀上。 延伸轴枢转地安装到手柄支架上。
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公开(公告)号：US5988766A
公开(公告)日：1999-11-23
申请号：US888199
申请日：1997-07-03
CPC分类号： B60T13/665 , B60T15/42 , B60T17/04
摘要： An adaptor for connecting brake pipe, brake cylinder, emergency and auxiliary reservoir ports on a standard pipe bracket to an electropneumatic control valve. The adaptor also includes threaded post to mount the electropneumatic valve to the adaptor and fastener apertures to receive fasteners to mount the adaptor to the pipe bracket.
摘要翻译： 用于将标准管支架上的制动管，制动缸，紧急和辅助油箱端口连接到电动气动控制阀的适配器。 适配器还包括螺纹柱，以将电动气动阀安装到适配器和紧固件孔以接收紧固件以将适配器安装到管支架。
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公开(公告)号：US5695258A
公开(公告)日：1997-12-09
申请号：US598117
申请日：1996-02-07
申请人： Jeffrey D. Reid , Edward W. Gaughan
发明人： Jeffrey D. Reid , Edward W. Gaughan
CPC分类号： F16L39/00 , B60T15/42 , B60T17/04 , B60T17/043 , B60T17/228
摘要： A portable, single-car test unit for a railway freight brake control valve for manually executing pressure manipulations to evaluate the operating conditions of the control valve. The pipe bracket portion is connected to a brake pipe, an auxiliary reservoir, an emergency reservoir, a brake cylinder retaining valve and a brake cylinder each being connected to a respective fluid passageway. The test unit accesses the fluid passageways at access ports, respectively connected to each passageway. Valves are utilized in the test unit to manipulate the pressure in the fluid passageways and pressure gauges measure fluid pressure in the passageways. An operator records each pressure measurement and calculates and stores the differences between selected pairs of the pressure measurements as well as elapsed time data for the measurements.
摘要翻译： 一种用于铁路货运制动控制阀的便携式单车测试单元，用于手动执行压力操作以评估控制阀的操作条件。 管支架部分连接到制动管，辅助储存器，紧急储存器，制动缸保持阀和制动缸，每个连接到相应的流体通道。 测试单元访问分别连接到每个通道的进入端口处的流体通道。 在测试单元中使用阀来操纵流体通道中的压力，压力计测量通道中的流体压力。 操作员记录每个压力测量值，并计算并存储选定的压力测量对之间的差异以及测量的经过时间数据。
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公开(公告)号：US5501513A
公开(公告)日：1996-03-26
申请号：US340856
申请日：1994-11-15
申请人： Robert Gayfer
发明人： Robert Gayfer
CPC分类号： B60T15/42
摘要： An emergency vent valve including a piston responsive to the differential pressure between the brake pipe and a control volume to open a vent valve to vent the brake pipe to atmosphere and includes an exhaust valve responsive to the differential pressure between brake pipe and control volume to connect the control volume to atmosphere through a service check and when the vent valve is opened through a second blow-down choke of a lesser rate which limits the exhausting of the control chamber. A choke valve connected to the piston connects the blow-down choke in series with the service choke when the vent valve becomes fully open.
摘要翻译： 一种紧急排气阀，包括响应于制动管和控制容积之间的压差的活塞，以打开排气阀以将制动管排放到大气中，并且包括响应于制动管和控制体积之间的压差连接的排气阀 通过维修检查对大气进行控制，并且当排气阀通过限制控制室排气的较低速率的第二吹风扼流圈打开时。 连接到活塞的节流阀在排气阀完全打开时将排气阀与排气阀串联连接。
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