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Spiral-flow type water-ramjet engine

A water ramming and engine technology, applied in the direction of machines/engines, mechanical equipment, gas turbine devices, etc., can solve the problems of poor fuel supply performance, poor combustion stability, etc., to achieve increased speed, good combustion stability, and improved combustion efficiency Effect

Inactive Publication Date: 2016-03-02
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor fuel supply performance and poor combustion stabilization effect of traditional water ramjet engines, and to provide a new swirl water ramjet engine with fuel supply system and combustion stabilization device

Method used

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  • Spiral-flow type water-ramjet engine
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  • Spiral-flow type water-ramjet engine

Examples

Experimental program
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Effect test

Embodiment

[0032] The swirling water ramjet engine is used for experimental research, the swirling blade angle is 60°, the incoming flow velocity of water is 20m / s, 40m / s, 80m / s, and the inlet velocity of magnesium powder is 15m / s, 30m / s, 60m / s. Measure the outlet flow velocity of the swirl ramjet and calculate the specific impulse, and the experimental results are as follows:

[0033] Table 1 Experimental results

[0034]

[0035] As can be seen from Table 1, the swirl type water ramjet engine of the present invention is at inlet water velocity 80m / s, and the burnout rate when magnesium powder inflow velocity is 60m / s is 98.3%, and gas outlet velocity is 697m / s, specific impulse 5019N. s / kg, which has a strong advantage in modern naval operations.

[0036] In the present invention, the fuel gas flow generates a tangential velocity under the guidance of the swirling blades to form a flow direction vortex, and the flow direction vortex induces a direction vortex to form a superimpos...

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Abstract

The invention discloses a spiral-flow type water-ramjet engine, and belongs to the technical field of fuel supplying systems and stabilization of combustion. The engine comprises a magnesium powder storing tank, a stirring bar, a pump, a combustion chamber inlet structure, a combustion chamber and a spraying pipe, wherein a nozzle, a fuel inlet, a central shaft and spiral-flow blades are arranged on the combustion chamber inlet structure; the magnesium powder storing tank, the pump and the combustion chamber are correspondingly fixed to a torpedo body; the stirring bar is positioned in the magnesium powder storing tank; one end of the combustion chamber is provided with the combustion chamber inlet structure while the other end of the combustion chamber is provided with the spraying pipe. According to the spiral-flow type water-ramjet engine, the speed and flow rate of magnesium powder can be adjusted; a spiral-flow device is additionally arranged to improve the combustion efficiency of the magnesium powder, so that the sailing speed can be improved and the sailing range can be increased. The spiral-flow type water-ramjet engine can achieve the purposes of improving the torpedo sailing speed and increasing the torpedo sailing range.

Description

technical field [0001] The invention discloses a novel torpedo water ramjet engine, which belongs to the technical fields of fuel supply system and stable combustion. Background technique [0002] At present, there are serious differences between my country and certain countries on issues such as island ownership and coastal demarcation. Therefore, the development of efficient and advanced combat weapon torpedo is imminent. Contents of the invention [0003] The purpose of the present invention is to solve the problems of poor fuel supply performance and poor combustion stabilization effect of traditional water ramjet engines, and provide a new swirl water ramjet engine with fuel supply system and combustion stabilization device. It includes a magnesium powder storage tank, a stirring rod, a pump, an inlet structure of a combustion chamber, a combustion chamber and a spray pipe, and the inlet structure of the combustion chamber is provided with a nozzle, a fuel inlet, a c...

Claims

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Application Information

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IPC IPC(8): F02K7/00F02C3/26
Inventor 刘立静李志强
Owner BEIHANG UNIV
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