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An Inner Bottom Structure for Improving Gas Temperature Uniformity of Gas Generator

A gas generator and gas temperature technology, which is applied in the direction of machines/engines, jet propulsion devices, rocket engine devices, etc., can solve problems such as poor reliability, unsatisfactory thermal components, and uneven gas temperature

Active Publication Date: 2021-09-14
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the existing gas generator has uneven gas temperature, poor reliability, and cannot meet the requirements of thermal components that have strict requirements on the uniformity of gas temperature, and to provide a method for improving the gas temperature uniformity of the gas generator. Insole structure

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  • An Inner Bottom Structure for Improving Gas Temperature Uniformity of Gas Generator
  • An Inner Bottom Structure for Improving Gas Temperature Uniformity of Gas Generator
  • An Inner Bottom Structure for Improving Gas Temperature Uniformity of Gas Generator

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] An inner bottom structure to improve the gas temperature uniformity of the gas generator, such as Figure 1 to Figure 3 As shown, the inner bottom plate 1 is included, and the inner bottom plate 1 is provided with a plurality of axial through holes 2 in a honeycomb manner. The axial through holes 2 include a hole body segment 21, and connecting ends 22 and The outlet end 23; the length of each axial through hole 2 is 2-5 times the diameter of the hole body section 21, and the length of the axial through hole is long enough to ensure sufficient mixing, so that the axial through holes can be used as a double group The channel for propellant combustion and mixing; the diameter of the connecting end 22 is greater than the diameter of the hole body section 21, and the diameter of the hole body section 21 matches the outer diameter of the gas generator...

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Abstract

The invention relates to a gas generator, in particular to an inner bottom structure for improving the gas temperature uniformity of the gas generator, which is suitable for thermal components (such as the gas generator of an engine) that require high temperature uniformity of the outlet gas. The purpose of the present invention is to solve the technical problems that the existing gas generator has uneven gas temperature, poor reliability, and cannot meet the requirements of thermal components that have strict requirements on gas temperature uniformity, and provides a method for improving the gas temperature uniformity of the gas generator. Insole structure. The inner bottom plate of the structure is evenly provided with a plurality of axial through holes, and the outlet end of each axial through hole adopts a shrinkage structure. When the nozzle of the gas generator injector is installed on the axial through hole, the propellant enters the axial through hole through the nozzle, and the multiple axial through holes of the inner bottom plate provide combustion and mixing space, so that the propellant can be It is fully burned and mixed in the axial through hole, and then ejected after being further forced to be mixed at the outlet end with a smaller diameter.

Description

technical field [0001] The invention relates to a gas generator, in particular to an inner bottom structure for improving the gas temperature uniformity of the gas generator, which is suitable for a thermal component (such as a gas generator of an engine) that requires a high temperature uniformity of the gas outlet. Background technique [0002] The component mixing ratio of the gas generator usually deviates far from the stoichiometric mixing ratio. In order to ensure the reliable ignition, stable combustion and reliable cooling of the gas generator, the partition combustion method is widely used in the design, that is, the gas generator is used in some areas. Combustion is carried out under the condition of proper mixing ratio to form a stable combustion zone, and the rest of the fuel (or oxidant) is injected from the head or body of the gas generator for the second time, and mixed with the generated high-temperature gas to produce a gas that meets the requirements. The g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/62F02K9/52
CPCF02K9/52F02K9/62
Inventor 郭灿琳李晓旭吴海波亓占峰李师阳卢钢银晋瑞
Owner XIAN AEROSPACE PROPULSION INST
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