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Method for ejecting an aircraft from an aircraft catapult

A catapult and aircraft technology, applied in the field of aircraft catapults, can solve problems such as high operation and maintenance costs, harsh working environment, complex structure, etc., to avoid high requirements and large losses, reduce operation and maintenance costs, and improve work environmental effects

Inactive Publication Date: 2016-01-20
刘振玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This catapult has the disadvantages of complex structure, harsh working environment, and high operation and maintenance costs

Method used

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  • Method for ejecting an aircraft from an aircraft catapult
  • Method for ejecting an aircraft from an aircraft catapult

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] figure 1 Medium air source air bag 1, ejection cylinder 2, ejection piston 3, deceleration cylinder 4, buffer cylinder 5, conversion air bag 6, compressor 7, atmospheric communication valve 8, communication valve 10, 11, 12, 13, 14, 15 .

[0019] Design parameters: ejection cylinder length 80m and buffer cylinder length 2m, cylinder diameter 450mm, deceleration cylinder length 3m, two sets, piston, connecting rod, shuttle weight 500KG, slider sliding friction coefficient 0.1, aircraft thrust 40000N, air insulation The index is 1.29, and the volume of a single gas storage bag is 110m 3 , pressure 35atm. After simple calculation, the mass of the take-off aircraft is 22500KG.

[0020] The ejection piston is connected with the shuttle by the connecting rod, and then connected with the front landing gear of the aircraft with the tow bar, and the shuttle is fixed by the tow bar. The ejection operator activates the ejection valve, and the high-pressure gas enters the front...

Embodiment 2

[0024] figure 2 Medium air storage bag 1, ejection cylinder 2, ejection piston 3, deceleration cylinder 4, buffer cylinder 5, conversion air bag 6, compressor 7, atmospheric communication valve 8, pressure supplement valve 9, communication valves 10, 11, 12, 13 , 14, 15.

[0025] Design parameters: ejection cylinder length 85m and buffer cylinder length 3m, cylinder diameter 450mm, deceleration cylinder length 3m, a pair of two, piston, connecting rod, shuttle weight 500KG, slider sliding friction coefficient 0.1, aircraft thrust 40000N, air insulation The index is 1.29, and the volume of a single gas storage bag is 110m 3 , the volume of the pressure supplement cylinder is 10m 3 , pressure 35atm. Through simple calculation, the mass of the take-off aircraft is 23600KG, which is 1100KG more than that of Example 1.

[0026] The ejection piston is connected with the shuttle by the connecting rod, and then connected with the front landing gear of the aircraft with the tow ba...

Embodiment 3

[0030] see figure 1 , A heater is installed in the gas storage bag, the temperature is raised from 30°C to 90°C, and the pressure is adjusted to 42atm.

[0031] Design parameters: ejection cylinder length 85m and buffer cylinder length 3m, cylinder diameter 450mm, deceleration cylinder length 3m, a pair of two, piston, connecting rod, shuttle weight 500KG, slider sliding friction coefficient 0.1, aircraft thrust 40000N, air insulation The index is 1.29, and the volume of a single gas storage bag is 110m 3 . Adjust the pressure of the air storage bag to 42atm. After simple calculation, the take-off weight of the aircraft is 30000KG, which is 7500KG higher than that in Example 1.

[0032] Example 3 of the present invention has the effect of implementing the method of adjusting the pressure of the gas storage bag to allow the catapult to adapt to the requirements for ejection and take-off of aircraft of different models and different ammunition loads.

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Abstract

The invention discloses power equipment and a process of an aircraft catapult. Particularly, high-pressure air serves as push power to push a piston in an air cylinder to move at high speed and drives an aircraft to accelerate through a connecting rod to enable the aircraft to reach the flying speed in very short distance (very short time); and in the late course of piston movement, the piston is decelerated by a depressurizing cylinder and stopped, and the piston resets and the power air is reclaimed when the air pressure at the two ends of the piston is equal. The power equipment has the effects of simple structure, good working environment and relatively low operation and maintenance cost; the push force can be kept constant substantially, higher accelerated speed can be ensured, and the bomb load of the arcraft is increased; and the catapult can be applied to different aircrafts and different requirements on catapult-assisted take-off of the aircraft can be met.

Description

technical field [0001] The invention belongs to the field of aircraft catapults. The invention relates to a method for ejecting an aircraft from an aircraft catapult, more specifically, a method that uses high-pressure gas as a driving force to push the piston in the cylinder to move at high speed and drive the aircraft to accelerate through a connecting rod. time) to make the aircraft reach the take-off speed; after the piston moves, it is decelerated and stopped by the decompression cylinder, and returns to its position and recovers the power gas when the air pressure at both ends of the piston is equal. Background technique [0002] my country's first aircraft carrier has entered service. It is a modification of the former Soviet Union's Varyag, which uses a ski jump to take off. Due to the limitation of deck length, this take-off method seriously restricts the take-off weight and take-off frequency of the aircraft. The bomb load and fuel carrying capacity of fighter jet...

Claims

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Application Information

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IPC IPC(8): B64F1/06
Inventor 陶俊徐继红
Owner 刘振玲