Electromagnetic adjusting type pressure reducing valve

The utility model provides an electromagnetic adjusting type pressure reducing valve. The check valve comprises a valve body, the valve body is provided with an air inlet and an air outlet. A buffer cavity is formed between the air inlet and the air outlet in the valve body; wherein an electromagnetic valve is arranged at the air inlet, a proportional balance valve is arranged at the air outlet, aproportional valve core driven by an electromagnet and a fixed valve seat are arranged in the proportional balance valve, and a valve port section which is correspondingly and linearly changed alongwith the axial displacement of the proportional valve core is formed between the proportional valve core and the valve seat. By additionally arranging the proportional balance valve, stable CNG outputpressure can be guaranteed through electromagnetic force, and automatic adjustment of flow can be achieved by adjusting the magnitude of current. And the combustion efficiency of the engine is greatly improved. The electromagn