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Dustproof air pressure follow-up control valve for aero-engine lubrication system

A technology of aero-engine and lubrication system, which is applied in the direction of engine lubrication, lubricating oil control valve, engine components, etc., to achieve the effect of simple structure, good maintainability and strong interface versatility

Active Publication Date: 2021-04-13
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a dust-proof aeroengine lubrication system air pressure follower control valve to solve or alleviate at least one of the problems in the background art

Method used

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  • Dustproof air pressure follow-up control valve for aero-engine lubrication system
  • Dustproof air pressure follow-up control valve for aero-engine lubrication system
  • Dustproof air pressure follow-up control valve for aero-engine lubrication system

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Embodiment Construction

[0054] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0055] Such as Figure 1 to Figure 5 As shown, the present application provides a dust-proof aeroengine lubrication system air pressure servo control valve 100, which mainly includes a mounting seat 110, a control valve housing 120, a conical valve body 130, a conical valve spring 140, a valve guide Device 150, control valve body 160, control valve spring 170 and dust removal assembly 180.

[0056] The left side of the installation seat 110 has a control chamber inlet, and its upper side has an exhaust port, the control chamber inlet is used to connect with the control chamber structure 220 , and the exhaust port is used to connect with the exhaust pipeline 210 .

[0057] The control valve housing 120 is fi...

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Abstract

The invention provides a dustproof air pressure follow-up control valve for an aero-engine lubrication system. The dustproof air pressure follow-up control valve comprises a mounting base, a control valve shell, a valve guider, a conical valve body, a control valve body and a dust removal assembly, wherein a control chamber inlet and an exhaust port are formed in the mounting base; the control valve shell is fixed relative to the mounting base, and a control air source inlet is formed in the control valve shell; the valve guider is fixed in an accommodating chamber formed by the mounting base and the control valve shell and divides the accommodating chamber into a conical valve chamber and a control valve chamber; the conical valve body and the control valve body are respectively arranged in the conical valve chamber and the control valve chamber, the conical valve body is supported by a conical valve spring, the control valve body is supported by a control valve spring, and the conical valve body is arranged on a guide rod of the control valve body; the dust removal assembly is arranged at the control air source inlet and comprises a dust remover nut connected with the control air source inlet, a dust remover arranged on the control air source nut, a dust remover guide pipe connected with a control air source guide pipe and a dust remover outer cover used for connecting the dust remover guide pipe with the dust remover nut; and a control air source entering the control valve can be filtered through the dust removal assembly.

Description

technical field [0001] The application belongs to the technical field of aero-engines, and in particular relates to a dust-proof aero-engine lubricating system air pressure follow-up control valve. Background technique [0002] With the continuous development of aero-engines, the lubrication ventilation system with a fixed flow path can no longer meet the needs of bearing cavity sealing and lubricating oil supply. It is necessary to adjust the operation status of the lubrication ventilation system according to the engine operation status, and the air pressure follower control valve came into being. The air pressure follow-up control valve is controlled by engine bleed air. Impurities in the air source flow into the valve gap, which can easily cause the valve to be stuck, make the lubrication system work abnormally, and affect the normal operation of the engine. Therefore, the control valve must also have a certain dust-proof ability. At present, there is no dust-proof pneuma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N23/00F16K17/20F02C7/06B01D46/24
CPCF16N23/00F16K17/20F02C7/06B01D46/2403
Inventor 荆帅韩金在刘向坤
Owner AECC SHENYANG ENGINE RES INST
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