Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.
The results show that shape of the air cell, properties of the material, volume of the appended gas chamber and diameter of the throttle hole are main factors affecting the dynamics of air springs.
结果表明，空气弹簧气囊外形及材料特性、附加气室容积和节流孔直径是影响空气弹簧性能的主要因素。
3
High delivery lift and high backpressure required in fuel throttle valve test were obtained through higher rotation speed of the main pump.