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Air bleed valve and compressor air bleeding control system with same, and aero-engine

A technology of bleed valve and compressor, which is applied in the direction of machine/engine, pump control, gas turbine device, etc. It can solve the problems of large space for oil pressure control pipeline layout, shape interference, and inability to meet the needs of electronic control of the engine.

Active Publication Date: 2020-10-27
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a deflation valve, a compressor deflation system using the same, and an aero-engine, so as to solve the problem that the current oil pressure-controlled deflation valve cannot meet the electronic control requirements of the engine and the layout of the oil pressure control pipeline. Too much space and technical problems of shape interference with other components

Method used

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  • Air bleed valve and compressor air bleeding control system with same, and aero-engine
  • Air bleed valve and compressor air bleeding control system with same, and aero-engine
  • Air bleed valve and compressor air bleeding control system with same, and aero-engine

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Embodiment Construction

[0039] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0040] like Figure 3 to Figure 5 As shown, the first embodiment of the present invention provides a deflation valve, which is used to be installed on the air collection chamber of any stage of the compressor for deflation, and the deflation valve includes an electromagnet assembly 1, an upper casing 2 , base 3, valve 4, guide sleeve 6, steel ball 7, ejector rod 8, iron core spring 9 and valve spring 10, the base 3 is fixedly installed on the gas collection chamber of the compressor, specifically, the base 3 There are 8 installation holes on the top, and it is fixed on the installation side of the air collection chamber valve by 8 screws. The upper casing 2 is fixedly mounted on the base 3 by screws, the valve 4 is installed between the base 3 and the upper casin...

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Abstract

The invention discloses an air bleed valve and a compressor air bleeding control system with the same, and an aero-engine. According to the air bleed valve, air in an air collecting chamber of a compressor is adopted as a control medium, 8 oil pressure control pipelines of an original air bleed structure are eliminated, the miniaturization design of an engine is advantageously achieved, the overall structure is compact, the shape of the air bleed valve cannot interface with other parts of an aircraft, installation and use are convenient, in addition, the valve can be controlled to be opened orclosed by controlling an electromagnet assembly to be powered-on and powered-off through an electronic controller, and the electronic control function is achieved, so that air bleeding of the compressor is more flexible, and the electronization control requirements of the engine can be well met.

Description

technical field [0001] The present invention relates to the technical field of compressor deflation, in particular to a deflation valve, and also to a compressor deflation control system using the above deflation valve, and in particular to a compressor deflation control system using the above compressor Air bleed control system for aeroengines. Background technique [0002] Aeroengines are mainly composed of compressors, combustion chambers, turbines and other components. At a certain speed, when the air flow decreases to a certain value, the compressor may experience surge. Compressor surge is an unstable working state of the engine, which causes vibration of the blades and the entire engine, and may cause damage to the compressor and the engine. Therefore, when the engine is working, surge is not allowed. Practice has proved that for a multi-stage axial flow compressor with a boost ratio of less than 10, releasing air from the middle stage of the compressor is a simple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/18F04D27/02
CPCF02C9/18F04D27/0269
Inventor 盛柏林李琼曾维高吉新余恺关醒雯吴学深
Owner CHINA HANGFA SOUTH IND CO LTD
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