The electric pneumatic relay valve with the multi-stage output function is composed of an upper end cover, a spring pressing plate, a valve element assembly, a valve body assembly, a valve rod assembly, a piston assembly, an elastic diaphragm plate, an electromagnetic valve and a bottom cover assembly, a gas circulation channel and a movable cavity are formed in a valve body, and the gas circulation channel comprises a gas inlet channel and an exhaust channel; the movable cavity is connected with the air inlet channel, the electromagnetic valve and the exhaust channel, the movable cavity is divided into a total air pressure cavity, a brake pressure cavity, a feedback pressure cavity, a first pre-control pressure cavity, a second pre-control pressure cavity, a third pre-control pressure cavity and a fourth pre-control pressure cavity, and the brake pressure cavity and the feedback pressure cavity are connected through a throttling bolt. According to the first pre-control pressure and the second pre-control output pressure, the multi-stage pressure can be output after the second pre-control pressure is processed, and the first pre-control pressure and the processed second pre-control pressure can be output after being increased.
本发明的一种具有多级输出功能的电空中继阀,由上端盖、弹簧压板、阀芯组件、阀体组件、阀杆组件、活塞组件、弹性膜板、电磁阀和底盖组件组成,阀体中设置有气体流通的通道和活动腔,气体流通的通道包括进气通道和排气通道,活动腔与进气通道、电磁阀和排气通道相连接,活动腔分隔成总风压力腔、制动压力腔、反馈压力腔、第一预控压力腔、第二预控压力腔、第三预控压力腔、第四预控压力腔,制动压力腔和反馈压力腔通过节流栓进行连接。本发明能够单独根据第一预控压力和第二预控输出压力,能够对第二预控压力进行处理后输出多级压力,能够对第一预控压力及处理后的第二预控压力取大进行输出。
Electric pneumatic relay valve with multi-stage output function
一种具有多级输出功能的电空中继阀
2022-08-09
Patent
Electronic Resource
Chinese