The action principle is as follows : When the valve body at around 2 pm between iron block, the spring plunger 12 13 stretch under left movements, the plunger cavity volume have increased LV cavity.
英
美
- 其动作原理如下:当泵阀体处于前后两挡铁之间时,柱塞12在弹簧13的弹力作用下向左运动,使柱塞腔的容积增大产生低压腔。