Two-stage type pulley block catapult of carrier-based aircraft

Abstract

Disclosed is a two-stage type pulley block catapult of a carrier-based aircraft. According to the catapult, pistons (2) and first-stage pulleys (5) are pushed by high-pressure gas to enable first-stage ropes (4) to pull second-stage pulleys (25) and enable second-stage ropes (6) on the second-stage pulleys (25) to pull catapulting sliding shuttles (39) to achieve accelerated catapulting of the carrier-based aircraft. The speed of a self-running part of a pulley block during acceleration is 1/4 of that of the catapulted carrier-based aircraft, the mass acceleration energy consumption of the self-running part per kilogram is just 1/16 of that of the catapulted carrier-based aircraft per kilogram, and the ropes at the acceleration sections do not have mass acceleration energy consumption. After catapulting is completed, energy storage winches (53) are driven by power of an aircraft carrier to pull the catapulting sliding shuttles (39) back to catapulting starting points (42), at this time, the high-pressure gas is pressed by the pistons (2) back into high-pressure air storage cylinders (7) to complete catapulting energy storage, and the carrier-based aircraft is catapulted again. Thehigh-pressure gas is recycled, and the work doing efficiency is improved multiple times compared with that of a steam catapult for catapulting through one-time use of high-pressure high-heat non-expanding gas. The catapult is simple in structure, convenient to use and safe.

Description

technical field [0001] A high-pressure gas is used to push the piston (2) in the cylinder (1) to generate power, and then the two-stage pulley block converts the large thrust and short stroke of the piston (2) into an ejection force with small thrust and long stroke. The power ejection device adapted to the uniform acceleration ejection work of the carrier-based aircraft, uses this technology to accelerate the ejection of the carrier-based aircraft. Background technique [0002] It can be seen on the Internet: the steam catapult C-13 is an aircraft carrier-based aircraft catapult used by the US military. Its disadvantages are as follows: because the steam cylinder is too long, the dowel rod will sink in the middle if it is too long, and the quality is too heavy, so the ejection work cannot be carried out or the efficiency is extremely low. Therefore, a large long slit was made on the cylinder from the beginning to the end, and the force of the piston was transmitted from th...

AI Technical Summary

Problems solved by technology

Due to the inevitable heat dissipation of high-pressure and high-heat steam, it is necessary to replenish heat energy regularly, and a lot of fresh water will be wasted during ejection

Electromagnetic catapults output a large amount of electric current in a very short time to supersaturate the wires and electronic components, generating a lot of heat, requiring troublesome cooling equipment, large engines and power storage equipment, ejection and buffer rails. The length is about 200m, occupying a large space

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