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Cast Stainless Steel Thruster Housing

Cast Stainless Steel Thruster Housing
Propulsion (booster) is generally used to provide power to improve speed. In aerospace, marine, automotive and other fields have a wide range of applications. It produces thrust by rotating blades or jet (water).
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Introduction of Cast Stainless Steel Thruster Housing:

Propulsion (booster) is generally used to provide power to improve speed. In aerospace, marine, automotive and other fields have a wide range of applications. It produces thrust by rotating blades or jet (water).

In a broad sense, it can refer to all thrusters that use thrust vector technology. In the narrow sense, it generally refers to thrusters that use thrust vector technology on an aircraft. In short, thrust vector technology is the technique of obtaining additional steering torque by deflecting the direction of the jet of the engine. We know that the thrust acting on the aircraft is a size, direction of the amount, this amount is called vector. However, on a typical airplane, the thrust is forward and the direction of the aircraft can not be changed. Therefore, in order to emphasize the variable direction of thrust in this technology, we call it thrust vector technology.

Without the use of thrust vector technology, the jet of the engine coincides with the axis of the aircraft and the resulting thrust is also along the axis. In this case, the thrust of the engine is only used to overcome the resistance encountered by the aircraft and provide aircraft acceleration Motivation.

The use of thrust vector technology aircraft, it is through the nozzle deflection, the use of engine-generated thrust to obtain excess control torque, to achieve the attitude control of the aircraft. Its outstanding feature is that the control torque is closely related to the engine, regardless of the attitude of the aircraft itself. Therefore, it is possible to ensure that the maneuvering of the aircraft is controlled by the additional steering torque provided by the thrust vector when the aircraft is maneuvering at a low speed or a high degree of attack and the control surface is almost ineffective. Fourth-generation fighter aircraft require the aircraft to have stalling maneuverability, that maneuvering ability at high angles of attack. Thrust vector technology just to provide this capability is to achieve the fourth generation of fighter tactics and technical requirements of the inevitable choice.

Common aircraft flight angle of attack is relatively small, in this state of the aircraft's wings and tail are able to generate sufficient lift to ensure the normal flight of the aircraft. When the aircraft angle of attack gradually increased, the aircraft's tail will be plunged into the wing's low wake, causing the tail stall, the aircraft into the tail rotation and crash. This time, even if the engine is working properly, it is impossible to keep the aircraft in balance in the air.

However, when the aircraft used the thrust vector, the engine nozzle deflected up and down, resulting in the thrust no longer passing through the center of gravity of the aircraft, resulting in a pitch moment around the center of gravity of the aircraft. At this moment, the thrust exerted the same effect as the control plane of the aircraft. Because the thrust is only related to the engine, even if the angle of attack of the aircraft exceeds the angle of attack, the thrust can still provide torque to trim the aircraft. As long as the wing can generate sufficient lift, the aircraft can continue to fly in the air . Moreover, it is also found through experiment that after the thrust deflection, not only the thrust force can generate direct projection lift, but also the induced lift force can be induced by the toroidal force to increase the total lifting force.

Equipped with thrust vector technology fighter with stalling maneuver ability, has a great advantage in the air, the United States equipped with a thrust vector technology X-31 validator and the F-18 did a simulated air combat, the results of the X-31 to 1 : 32 record far ahead of the F-18.

The use of thrust vector technology not only greatly enhance the flexibility of the aircraft, but also with unprecedented take-off and landing capability, this is because the use of thrust vectorial aircraft and the thrust lift force in the direction of lift components are helpful to reduce the aircraft Ground and ground speed, shortening the aircraft's roll distance. In addition, as the thrust vector nozzle is easy to achieve thrust reversal, the braking force of the aircraft after landing is also significantly increased, so the landing slip distance is more shortened.

If the engine nozzle is not only up and down deflection, but also left and right deflection, then the thrust can not only provide the aircraft pitch torque, but also to provide yaw torque, which is a full-vector aircraft.

The use of thrust vector technology improves the control efficiency of the aircraft so that the aerodynamic control surfaces of the aircraft, such as the tail and the tail, can be greatly reduced, so that the weight of the aircraft can be reduced. In addition, the vertical tail and the corner of the rear reflector is therefore reduced, the aircraft's stealth performance has also been improved.

Thrust vector technology is a comprehensive technology that includes thrust steering nozzle technology and aircraft fuselage / propulsion / control system integration technology. Thrust vector technology development and research require cutting-edge aviation science and technology, reflecting the comprehensive national strength of a country, the world only the United States and Russia have mastered this technology, F-22 and Su-37 is the two countries equipped with this advanced technology The representative of the models.

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