Device for providing air and rich combustion fuel gas and engine of deice

Abstract

The invention discloses a device for providing air and rich combustion fuel gas. The device comprises a supercharger, a turbine assembly, an air conveying pipeline, a fuel gas generator and a mixer; the turbine assembly is arranged at the rear end of the supercharger; one end of the air conveying pipeline is connected with the supercharger, and the other end of the air conveying pipeline is connected with the mixer; the air conveying pipeline is used for conveying air; the fuel gas generator is connected with the turbine assembly and is used for conveying the rich combustion fuel gas; and themixer is arranged on the rear portion of the turbine assembly and communicates with the turbine assembly. The invention further provides an air turbine rocket engine. Due to the device, the air and the rich combustion fuel gas can be mixed uniformly, and the combustion efficiency of an engine combustion chamber is improved to a very large extent.

Description

technical field [0001] The invention belongs to the technical field of aerospace combined engines, and relates to a device for supplying air and fuel-rich gas and its engine, in particular to a device for supplying air and fuel-rich gas to an air turbine rocket engine and its engine. Background technique [0002] In recent years, the near space, as the airspace between satellites and aircraft, has been paid more and more attention by relevant countries. The atmosphere in this space is thin and cannot meet the working requirements of the air-breathing engine. In order to solve the problem that the atmosphere in the adjacent space is thin and cannot meet the working requirements of the air-breathing engine, and to make better use of this space, it is necessary to design an engine that not only Can work in the troposphere can also work in the stratosphere. The concept of combined engine gradually emerged in front of people. Because of this space, only combined engines can ful...

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Problems solved by technology

During the working process of the air turbine rocket engine, when the gas generator drives the turbine, an additional bending moment will be applied to the transmission shaft between the turbine and the compressor, which seriously affects the life of the transmission shaft and bearings; the gas generator drives the turbine, and the compressor compresses air. The generated fuel-rich gas and the air transported through the pipeline are prone to uneven mixing when mixed in the mixer, which seriously affects the combustion efficiency of the subsequent two airflows in the combustion chamber, which in turn affects the ability of the engine to generate thrust

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