No external part is required by the device for reversing the cylinder, and the high-speed back-and-forth motion can be achieved, so that an object can move fast.
本装置不用任何 外部件对气缸进行换向，就能达到高速往返运动，能使物体快速移动。
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Hence, the ME engine features fully integrated control of all functions like the governor, start and reversing, fuel, exhaust and starting valves, as well as cylinder oil feeding.
TYB series waterflood pressure regulating systems consist of two cylinder four chamber pump body, electro hydraulic reversing valve, control fluid circuit and control current circuit.