Inflation electromagnetic valve for high-pressure helium tank of rocket engine

A rocket engine high-pressure helium bottle inflation electromagnetic valve adopts a pilot-operated type electromagnetic valve structure, and achieves the functions that a downstream gas bottle is inflated by being opened after being powered on and inflation is stopped by being closed after being powered off. A reverse sealing valve is designed at the downstream of the electromagnetic valve, so that one-way inflation of the gas cylinder is realized, and sealing of gas in the gas cylinder is ensured after power failure; main components such as the shell and the valve element of the valve are all made of aluminum alloy materials, detailed design is conducted on the structure, and the whole valve is light. A valve action buffer structure is designed, so that the valve is prevented from being impacted to generate radial deformation during high-pressure action, and action jamming is avoided; the valve element is provided with a replaceable throttling structure, so that the inflation rate of the gas cylinder is con