The invention relates to an emergency valve which comprises a valve shell, an exhaust channel is formed in the valve shell, a main valve port is provided with a main valve element for controlling the opening section of the main valve port, the main valve element divides the exhaust channel into a high-pressure cavity communicated with a brake pipe, and the high-pressure cavity is communicated with an emergency chamber through a communication channel; the emergency chamber is provided with an exhaust valve capable of achieving communication and disconnection between an inner cavity of the emergency chamber and the atmosphere, a center rod of a piston assembly of the emergency valve is communicated with the exhaust valve when pushing the main valve element to be opened, so that the exhaust channel of the exhaust valve is communicated for exhausting, on the basis that high-pressure gas in the emergency chamber is exhausted into the high-pressure cavity through the communication channel, another discharge channel is provided for the high-pressure gas in the emergency chamber, so that the high-pressure gas in the emergency chamber can be discharged at a higher speed, and the emergency valve can be relieved to the initial state within a short time.
本发明涉及一种紧急阀,包括阀壳,阀壳上开有排风通道、主阀口处设置主阀芯控制主阀口的开段,主阀芯将排风通道隔出与制动管连通的高压腔,且高压腔与紧急室通过连通通道连通;紧急室上配置有可实现其内腔与大气连通和断开的排气阀,紧急阀的鞲鞴组件的中心杆在推动主阀芯打开时导通排气阀,使得排气阀的排气通道导通排气,在紧急室高压气体通过连通通道排至高压腔内的基础上,为紧急室内的高压气体提供另一条排出通道,使得紧急室内的高压气体能够以更快的速度排出,确保紧急阀能够在较短时间内缓解至初始状态。
Emergency valve
一种紧急阀
2021-10-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
EMERGENCY VALVE HAVING EMERGENCY ACCELERATION RELIEVING FUNCTION
Europäisches Patentamt | 2023
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