Pressure-equalizing ventilation device of autonomously ventilated supercavitation aircraft

Abstract

The invention discloses a pressure-equalizing ventilation device of an autonomously ventilated supercavitation aircraft. The pressure-equalizing ventilation device comprises a ventilation hole, a pressure-equalizing chamber, a conical ventilation sliding block, a ventilation valve and a high-pressure gas cylinder; the pressure-equalizing chamber is located between the ventilation hole and the conical ventilation sliding block and serves as an independent cavity, so that high-pressure gas sprayed out of the high-pressure gas cylinder can evenly enter the ventilation hole; small round holes arearranged in the circle of the conical ventilation sliding block; the conical ventilation sliding block can slide in the cavity of the conical section; and when the supercavitation aircraft is launched, the supercavitation aircraft slides in the direction of the ventilation valve under the inertia effect, the ventilation valve can be opened when a ventilation valve element is impacted by the conical ventilation sliding block, and high-pressure gas release is achieved. According to the pressure-equalizing ventilation device of the autonomously ventilated supercavitation aircraft provided by theinvention, the interior of the ventilation supercavitation aircraft is modified, the conical ventilation sliding block and the ventilation valve are installed in front of the high-pressure gas cylinder, and the pressure-equalizing chamber is installed between the ventilation hole and the conical ventilation sliding block, so that timely, autonomous and uniform ventilation process is achieved, andthe stability of cavity flow patterns of the ventilation supercavitation aircraft in the navigation process is improved.

Description

technical field [0001] The invention relates to the field of ventilation supercavitation, in particular to a self-ventilating supercavitation aircraft pressure equalization ventilation device. Background technique [0002] The supercavitation technology avoids the direct contact between the wall of the aircraft and the surrounding water medium by wrapping the aircraft in the cavitation, thereby greatly reducing the navigation resistance of the supercavitation aircraft and improving the speed and combat effectiveness of underwater weapons. Therefore, the research on supercavitation vehicles has important strategic significance and military application value. [0003] Artificial ventilation is an important means for cavitation formation and shape regulation of supercavitating aircraft. The stable control of supercavitating aircraft is inseparable from the regulation of cavitation flow pattern. The formation and development of cavitation are related to the ventilation rate. Qu...

AI Technical Summary

Problems solved by technology

[0004] At present, the free-flying supercavitation aircraft cannot obtain air source from the outside world to form supercavitation, so it must independently carry high-pressure gas cylinders for ventilation. At present, there are high-pressure gas cylinders for ventilation. When the aircraft is launched, the ventilation source needs to be timely and autonomous after the aircraft is launched. The problem of opening, and the problem of uneven pressure of the high-pressure gas coming out of the high-pressure gas cylinder

[0005] Based on the above reasons, how to solve the problem of high-pressure gas cylinders not being able to ventilate autonomously and uneven ventilation in the field of supercavitation ventilation is an imminent matter.

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