The invention discloses a gas circuit switch valve for a railway vehicle, which belongs to the technical field of railway vehicle braking, and comprises an upper valve cover, a valve body, a lower valve cover, a valve core assembly and a diaphragm assembly, and is provided with a forward high-pressure gas inlet passage and a reverse low-pressure gas exhaust passage, and a one-way valve a and a one-way valve b are respectively arranged on the two passages; when the air inlet pressure is larger than the high-pressure threshold value set by the valve, the forward air inlet channel is connected, and the automatic anti-running device is inflated to achieve parking relieving. And when the pressure of the air inlet end is reduced to be lower than a low-pressure threshold value set by the valve, the reverse exhaust passage is communicated, and the automatic anti-running device exhausts air to realize parking application. The method is high in safety and reliability; the practicability and the universality are good; and the manufacturing cost and the manufacturing control difficulty are low.
本发明公开了一种铁路车辆用气路开关阀,属于铁路车辆制动技术领域,其包括上阀盖、阀体、下阀盖、阀芯组件和膜片组件,设置有正向高压进气通路和反向低压排气通路,并在两通路上分别设置有单向阀a和单向阀b,当进气压力大于该阀设定的高压门限值后,正向进气通路接通,自动防溜器充气实现驻车缓解;当进气端压力下降到低于该阀设定的低压门限值后,反向排气通路接通,自动防溜器排气实现驻车施加。本发明具有安全性、可靠性高;实用性、通用性好;制造成本、制造控制难度低等优点。
Gas circuit switch valve for railway vehicle
一种铁路车辆用气路开关阀
2024-04-19
Patent
Electronic Resource
Chinese
High-speed switch valve active railway vehicle braking system
European Patent Office | 2021
|European Patent Office | 2018
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