Piston type pulse detonation engine

A pulse detonation, engine technology, applied in mechanical equipment, intermittent injection devices, etc., to achieve the effect of being conducive to heat dissipation, increasing intake pressure, and enhancing convective heat transfer intensity

Inactive Publication Date: 2019-07-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve a series of problems such as pressure reverse transmission and energy utilization of the self-breathing pulse detonation engine, the present invention proposes a design scheme of a piston type pulse detonation engine

Method used

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  • Piston type pulse detonation engine
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  • Piston type pulse detonation engine

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and the specific implementation process.

[0023] see figure 1 and figure 2 , The detonation combustion device is evenly distributed at equal angles based on the central axis, the transmission mechanism is installed in the detonation device, and the fan assembly is located at the central axis of the entire system, fixed and restrained by the supporting structure. Part of the energy generated by the detonation combustion device generates thrust by propagating downstream, and the other part propagates upstream and acts on the transmission device. The transmission device drives the fan in the fan assembly to rotate at high speed to generate thrust and improve the heat dissipation capacity of the combustion device. The combustion device, transmission mechanism and fan assembly are fixed and restrained, and the fairing plays the role of rectifying and forming the outer cover...

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Abstract

The invention provides a piston type pulse detonation engine. The piston type pulse detonation engine comprises a fairing, a detonation combustion device, a fan assembly, a transmission mechanism anda supporting structure, wherein one part of energy generated by the detonation combustion device is transmitted downstream to form thrust, and the other part of the energy is transmitted upstream to act on a transmission device; the transmission device drives a fan in the fan assembly to rapidly rotate to produce mechanical energy, the energy utilization rate and thrust of a whole engine system are increased, and energy back transmission during detonation combustion is effectively inhibited. The supporting structure achieves the fixing and constraint effects on the detonation combustion device, the fan assembly and the transmission mechanism. The fairing achieves the rectifying and external duct forming effects. Through the piston type pulse detonation engine, a series of problems existingin pressure back transmission, energy utilization and the like of an existing self-priming pulse detonation engine are effectively solved. The piston type pulse detonation engine is suitable for thefield of detonation propulsion.

Description

technical field [0001] The invention relates to the technical field of pulse detonation propulsion, in particular to a piston type pulse detonation engine. Background technique [0002] A Pulse Detonation Engine (PDE) is an engine that uses periodic detonation combustion to generate thrust. Compared with the isobaric combustion of the traditional aviation jet engine, the thermodynamic process of the pulse detonation engine is similar to the isovolumic cycle, which has higher thermal efficiency. Moreover, pulse detonation combustion eliminates complicated rotating mechanisms such as turbines and compressors, so the structural complexity and weight are greatly reduced, and the thrust-to-weight ratio can be greatly improved. Due to these excellent properties and potential advantages, detonation combustion has been researched and discussed by many scholars at home and abroad. [0003] Detonation combustion has great theoretical advantages. However, the application of detonatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K7/02
CPCF02K7/02
Inventor 范玮夏壹斌郑家炜迟烨青赵明皓王之声
Owner NORTHWESTERN POLYTECHNICAL UNIV
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