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A multi-way flow distribution valve for aero-engine lubricating oil system

A technology of aero-engine and lubricating oil system, which is applied in the direction of engine lubrication, engine components, distribution devices, etc., to achieve the effect of compact structure, simple structure, and solving the problem of bearing cavity flow matching

Active Publication Date: 2022-06-07
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a multi-way flow distribution valve for the lubricating oil system of an aero-engine to solve or alleviate at least one of the problems in the background art

Method used

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  • A multi-way flow distribution valve for aero-engine lubricating oil system
  • A multi-way flow distribution valve for aero-engine lubricating oil system
  • A multi-way flow distribution valve for aero-engine lubricating oil system

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Embodiment Construction

[0054] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.

[0055] like figure 1 As shown, the multi-channel flow distribution valve of the aero-engine lubricating oil system provided by the present application mainly includes a front casing 1 , a rear casing 2 , a valve seat 4 , a main valve 6 , an auxiliary valve 8 and a spring 7 .

[0056] The front housing 1 has a squeeze oil film interface 11 and a first lubricating oil cavity opening. The squeeze oil film interface 11 is used to connect with the squeeze oil film pipeline 30 or the lubricating oil supply pipeline 30, and the first lubricating oil cavity opening is provided with On the side wall of the front housing 1, it is used to connect with the first lubrica...

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Abstract

The present application provides a multi-way flow distribution valve for the lubricating oil system of an aero-engine, which includes: a front casing, which has an extruded oil film interface and a first valve arranged on the wall of the front casing and used to communicate with the first lubricating oil chamber. A lubricating oil chamber opening, the first lubricating oil chamber opening at least includes a first lubricating oil chamber low-state flow channel and a first lubricating oil chamber high-state flow channel arranged along the axial direction of the front housing; The casing has a second lubricating oil chamber interface for connecting with the second lubricating oil chamber; the valve seat is arranged in the cavity formed by the front casing and the rear casing, and the valve flow channel is arranged on it; The main valve and the auxiliary valve that can move relative to the valve seat. The main valve is supported by the valve seat and covers the valve flow channel. A spring is arranged between the valve seat and the auxiliary valve. The main valve flow channel of the lubricating oil chamber interface, and the auxiliary valve has an auxiliary valve flow channel connecting the extrusion oil film interface and the valve flow channel.

Description

technical field [0001] The application belongs to the technical field of valves, and in particular relates to a multi-channel flow distribution valve for an aero-engine lubricating oil system. Background technique [0002] With the continuous development of aero-engines, the application of bearing elastic support and squeeze oil film technology is more and more extensive, and the sealing requirements for the main bearing cavity are more and more stringent. The application of the squeeze oil film requires sufficient oil pressure, and during the engine starting process, due to the low speed of the oil pump, it is difficult to form the oil supply pressure required for the squeeze oil film, so that the bearing loses shock absorption and damping during the starting process, resulting in Blade tip wear affects engine life. [0003] In addition, in the process of engine starting and idle, the oil return circuit oil pump sucks the air-liquid mixture, resulting in insufficient oil r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16N25/02F02C7/06
CPCF16N25/02F02C7/06Y02T50/40
Inventor 荆帅谷俊刘向坤
Owner AECC SHENYANG ENGINE RES INST
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