With the car upside - down, the ball forces the plunger to seat against the guide plate.
当汽车倾倒时，滚珠迫使柱塞落在支承板上。
2
The pump valve has a structure of semi-spheric plunger with guide rod, and its seat and ball are aligned by means of a spring, and it is opened and closed in time.
泵阀件采用带导向杆的半球形柱塞结构，弹簧制动，精确控制阀球与阀座对中，启闭动作及时。
3
The guiding hydraulic cylinder is connected with the main hydraulic cylinder by the communicating pipe. One end of the guideplunger is sheathed in the guide hydraulic cylinder.