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Aero-engine lubricating oil system multi-way flow distribution valve

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, guaranteed rotor blade tip clearance, good shock absorption and damping

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

[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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  • Aero-engine lubricating oil system multi-way flow distribution valve
  • Aero-engine lubricating oil system multi-way flow distribution valve
  • Aero-engine lubricating oil system multi-way flow distribution valve

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

[0056] The front housing 1 has an extruding oil film interface 11 and an opening of the first lubricating oil chamber. The extruding oil film interface 11 is used to connect with the extruding oil film pipeline 30 or the lubricating oil supply pipeline 30. The opening of the first lubricating oil chamber is set On the side wall of the front housing 1, it is used to communicate with the first lubricating oil chamber. Wherein, the open...

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Abstract

The invention provides an aero-engine lubricating oil system multi-way flow distribution valve. The flow distribution valve comprises a front shell, a rear shell, a valve seat, a main valve and an auxiliary valve, wherein the front shell is provided with an extrusion oil film connector and a first lubricating oil cavity opening formed in the wall of the front shell and used for communicating with the first lubricating oil cavity, the first lubricating oil cavity opening at least comprises a first lubricating oil cavity low-state flow channel and a first lubricating oil cavity high-state flow channel which are arranged in the axis direction of the front shell, the rear shell is fixedly connected with the front shell and provided with a second lubricating oil cavity connector used for communicating with a second lubricating oil cavity, the valve seat is arranged in a containing cavity formed by the front shell and the rear shell, a valve flow channel is arranged on the valve seat, the main valve and the auxiliary valve 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 is provided with a main valve flow channel communicating with the extrusion oil film connector and the second lubricating oil cavity connector, and the auxiliary valve is provided with an auxiliary valve flow channel for communicating the extrusion oil film connector with 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 of an aero-engine lubricating oil system. Background technique [0002] With the continuous development of aero-engines, bearing elastic support and extrusion oil film technology are more and more widely used, and the sealing requirements for the main bearing cavity are becoming more and more stringent. The application of squeezed oil film requires sufficient lubricating oil pressure, but in the process of starting the engine, due to the low speed of the lubricating oil pump, it is difficult to form the lubricating oil supply pressure required to squeeze the 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, during the engine starting and idling process, the oil return pump sucks the gas-liquid mixture, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(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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