A gas rocket engine and design method for unmanned aerial vehicles

A rocket engine and unmanned aerial vehicle technology, applied in the direction of machines/engines, design optimization/simulation, jet propulsion devices, etc., can solve the problems that solid rocket motors cannot be reused, difficult to realize, and high technical requirements, and achieve high acceleration, The launch platform is short and economical
CN113550841BActive Publication Date: 2022-04-12PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Publication Date
2022-04-12

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Abstract

The invention discloses a gas rocket engine for unmanned aerial vehicles and a design method thereof, which comprises an air intake section, a steady flow chamber and a tail nozzle arranged coaxially along the airflow direction; The high-pressure gas cylinders are connected; the tail nozzle includes a contraction section and an expansion section; the contraction section includes a large contraction arc and a small contraction arc. In the present invention, the gas rocket engine is used as the power propulsion device for the unmanned aerial vehicle to take off, which can realize a larger impulse, and can generate a larger thrust in a shorter time, so that the unmanned aerial vehicle can obtain a larger acceleration, so that the launch platform It is short and small, and can meet the requirements of 10-20m / s take-off speed in a short period of time for high-weight UAVs of 100-300kg. In addition, the gas rocket engine uses high-pressure air as the propellant, and high-pressure air can be obtained through a portable air compressor, so the source of propellant is sufficient and economical and environmentally friendly.
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Description

technical field

[0001] The invention relates to the field of gas rocket engine design, in particular to a gas rocket engine and a design method for unmanned aerial vehicles. Background technique

[0002] With the advancement of science and technology, UAV technology is becoming more and more mature, and the demand and scale of UAV use are also increasing. UAVs are also appearing more and more frequently in areas such as emergency rescue and disaster relief, aerial reconnaissance, and unmanned operations. The diversification of demand has also led to the diversification of UAV models, especially fixed-wing UAVs, which can have a long cruise capability and a large carrying capacity, and are favored by people.

[0003] Fixed-wing UAVs have high environmental requirements when taking off, especially requiring a suitable length of the runway. When the fixed-wing UAV takes off only by its own power unit, it may require a longer runway to reach the take-off speed due to the small...

Claims

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