High temperature gas valve

Abstract

The invention discloses a high-temperature gas valve, which relates to the technical field of attitude and track control of aerospace vehicles. The attitude of the aircraft can be adjusted to enter a proper flight track through the control of the valve. By applying power to the linear motor in the forward or reverse direction, the moving coil drives the valve stem to move forward and backward, so as to control the movement of the balance ball head on the valve stem in the split cavity to form the left or right chamber. When the left chamber is connected to the high-pressure gas exhaust channel, high-pressure gas enters the exhaust channel from the left chamber and is discharged; when the right chamber is connected to the high-pressure gas channel, high-pressure gas enters from the right chamber through the jet channel working status. The control system can adjust the intake of high-pressure gas according to the flight status of the aircraft, so that the attitude of the aircraft can enter the proper flight track in a short period of time. The invention has the characteristics of small size, fast response and easy control, can meet the maneuverability, flexibility and high-precision requirements of aerospace vehicles, and improves safety guarantee.

Description

High temperature gas valve technical field The invention relates to the technical field of attitude and orbit control of an aerospace vehicle, in particular to a miniature high-temperature gas valve. The high-temperature gas can be controlled by the valve to adjust the attitude of the aircraft to enter a proper flight track. Background technique At present, the high-temperature gas valves used in many types of aerospace vehicles generally adopt the scheme of high-temperature alloy plus electromagnet. When the gas valve is in use, the temperature of the gas passing through the gas valve is very high, about 1000 ℃ ~ 1400 ℃, the adverse effects of high temperature gas must be considered in the design and manufacture. For a long time, the valve body has been made of high-temperature alloy and the use of two electromagnets to control the gas valve has caused problems: the gas valve is large in size and heavy in weight; the response time of the gas valve is long, and the respon...

AI Technical Summary

Problems solved by technology

For a long time, the valve body has been made of high-temperature alloy and the use of two electromagnets to control the gas valve has caused problems: the gas valve is large in size and heavy in weight; the response time of the gas valve is long, and the response time of the electromagnet is generally tens of milliseconds; When the gas enters the valve body, the medicine residue in the gas is easy to remain in the valve body. In severe cases, the valve stem will stop working, causing the gas valve to fail.

These problems have always been difficult to solve

Existing technologies are difficult to meet the maneuverability, flexibility, and higher precision requirements of aerospace vehicles

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