A Side Exhaust Pulse Detonation Engine

A pulse detonation engine technology, applied in the field of aero-engines, can solve the problems of long exhaust time, low detonation frequency, airflow blockage, etc., and achieve the effects of rapid response, increased detonation frequency and simple structure

Active Publication Date: 2018-03-06
上海洲跃生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defects of air flow blockage, long exhaust time and low knock frequency in the traditional pulse detonation engine tail nozzle exhaust method, and to provide a side exhaust that can exhaust at multiple points at the same time The gas pulse detonation engine can significantly shorten the exhaust time, greatly increase the detonation frequency, and thus greatly increase the engine thrust

Method used

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  • A Side Exhaust Pulse Detonation Engine
  • A Side Exhaust Pulse Detonation Engine
  • A Side Exhaust Pulse Detonation Engine

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Embodiment Construction

[0026] Below in conjunction with embodiment the present invention is described in further detail.

[0027] Such as Figure 1~6 As shown, the pulse detonation engine with side exhaust is mainly composed of the following parts: nose cone 1, detonation tube 2, side intake valve 3, side exhaust valve 4, main fuel nozzle 5, detonation fuel nozzle 6 and igniter 7. The engine equipped with the external duct 8 also includes an air inlet 801, an annular cavity 802 and a tail nozzle 802; both ends of the detonation tube 2 are closed, and the front end cover is a flat end cover, which acts as a thrust wall. The rear end cover is a hemispherical end cover. The detonation tube 2 is divided into a main detonation chamber 201 and an initiation chamber 203 by a sieve plate 202. The main detonation chamber 201 is in front and the detonation chamber 203 is in the rear; There are grooves, and the grooves are evenly distributed along the circumference; the number of grooves is determined accordi...

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Abstract

The invention discloses a side-exhausting pulse detonation engine. The pulse detonation engine is at least composed of a head cone, a detonation pipe, lateral air inlet valves, lateral air exhaust valves, main fuel nozzles, detonation fuel nozzles and an igniter, wherein the two ends of the detonation pipe are sealed, and the detonation pipe is divided into a main detonation chamber at the front part and a blasting chamber at the rear part by a sieve plate; the blasting chamber comprises a mouse cage component; the lateral air inlet valves and the lateral air exhaust valves are alternately arranged on the pipe wall of the detonation pipe in the axial direction; the main fuel nozzles and the detonation fuel nozzles are distributed on the pipe inner wall of the detonation pipe in the axial direction; when the engine works, multiple main fuel nozzles spray atomized fuels into the main detonation chamber, at the same time the detonation fuel nozzles spray gasified detonation fuels into the blasting chamber; the igniter detonates the explosive gas mixture in the blasting chamber and then detonates the mist-shape mixture in the main detonation chamber, and generated shock waves generate main thrust on a thrust wall; the explosive gas products are ejected backwards from the multiple lateral air exhaust valves to generate further thrust; an outer duct can be additionally arranged outside the detonation pipe, so that the resistance generated in high-speed flight is reduced.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a side-exhaust pulse detonation engine. Background technique [0002] Pulse Detonation Engine (PDE) is a new concept engine with detonation wave as the main thrust. When the engine is working, the fuel burns in the detonation chamber of the engine in a violent detonation manner, which generates High temperature and pressure (pressure can be as high as 100 atmospheres, temperature can reach 2000°C), and the detonation wave (shock wave) generated at the same time propagates at supersonic speed (kilometers per second) and acts on the thrust wall of the engine to generate thrust , when the high-temperature and high-pressure combustion products are jetted out of the engine at high speed, additional thrust is generated; because the detonation combustion is intermittent pulse combustion, the engine is an unsteady propulsion system. Compared with the traditional propulsion system, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K7/02F02K7/06
CPCF02K7/02F02K7/06
Inventor 李春洲
Owner 上海洲跃生物科技有限公司
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