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Device for testing performance of injector

A testing device and injector technology, applied in jet propulsion device, rocket engine device, machine/engine, etc., can solve problems such as lack of injector performance, improve medium atomization effect, meet measurement requirements and measurement accuracy high effect

Active Publication Date: 2016-11-09
XIAN AEROSPACE PROPULSION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing lack of matching special liquid testing device for injector performance

Method used

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  • Device for testing performance of injector
  • Device for testing performance of injector
  • Device for testing performance of injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation.

[0050] figure 1Shown is a schematic structural diagram of the injector of the present invention. The injector includes a housing, a plurality of nozzles 73 and an inner bottom 74. The plurality of nozzles 73 are located in the middle of the housing, and the injector is divided into upper and lower parts. The upper part The main fuel road ring cavity, the lower part is the main fuel road outlet cavity, the outer periphery of the lower end near the bottom is provided with a plurality of fuel road inlets 77, the outer periphery of the inner bottom 74 is provided with a spiral groove 75 leading from the bottom of the inner bottom to the top, and the inner bottom There are multiple tangential holes for cooling passages at the bottom of the tank, and the inner bottom is inlaid on the inner wall of the lower shell. The liquid entering fr...

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Abstract

The invention provides a device for testing the performance of an injector. The device comprises a water inlet collector (1), multiple water inlet pipelines (2), an upper cover (3), a water inlet cavity (4), a lower cover (5) and a liquid collector (6). Inlets of the multiple water inlet pipelines are connected with an outlet of the water inlet collector. Outlets of the multiple water inlet pipelines lead to the water inlet cavity. The water inlet cavity (4) is formed around an inlet of a main fuel way at the lower end of the injector, and the upper cover is matched with the water inlet cavity to lead water into the inlet of the main fuel way. The liquid collector (6) is located in an outlet cavity of the injector and used for collecting flow of the main fuel way. The lower cover is located below the water inlet cavity and is matched with the water inlet cavity to achieve collection and measurement of the flow of a cooling way. By means of the device for testing the performance of the injector, due to the structural design of the device, it is ensured that water flows into a runner and flows out of the runner according to requirements, the flow of the runner is ensured, it is ensured that a test can be conducted smoothly, product test data are obtained, a basis is provided for model study, and therefore the medium atomization effect and the combustion stability of an engine are improved.

Description

technical field [0001] The invention relates to an injector performance testing device, which is applied in the injector liquid flow test of a thrust chamber. Background technique [0002] In the development process of the thrust chamber, it is necessary to conduct a water test on the injector of the combustion component to obtain its performance parameters and verify whether the product design meets the technical requirements. The liquid test needs to measure the nozzle pressure drop, total pressure drop and cooling ring flow rate of the injector main fuel circuit at the rated flow rate; observe whether the tangential hole of the cooling ring circuit is blocked at a given small flow rate and whether the jet flow is uniform. There is a lack of matching special liquid testing device for the performance of the injector at present. Contents of the invention [0003] In order to meet the water test requirements of the injector of the combustion assembly, the invention provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/96
CPCF02K9/96
Inventor 徐亚丽冯蒲萍段茂强
Owner XIAN AEROSPACE PROPULSION INST
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