Lubricating oil filter for aeroengine

A technology for using lubricating oil in aero-engines, which is applied in the direction of engine lubrication, engine components, aircraft parts, etc., and can solve problems such as high viscosity of lubricating oil and false alarms

Active Publication Date: 2019-08-30
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an aero-engine lubricating oil filter to solve the problem of false alarms caused by the high viscosity of the lubricating oil that cannot pass through the lubricating oil filter when the aero-engine is started at low temperature

Method used

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  • Lubricating oil filter for aeroengine
  • Lubricating oil filter for aeroengine
  • Lubricating oil filter for aeroengine

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] figure 1 It is a schematic diagram of an aero-engine lubricating oil filter in a preferred embodiment of the present invention; figure 2 is a schematic diagram of a differential pressure signal component and a temperature lockout component in a preferred embodiment of the present invention; image 3 is a schematic diagram of a bimetallic strip in a preferred embodiment of the present invention.

[0027] Such as figure 1 As shown, the aero-engine lubricating oil filter of this embodiment includes a filter assembly for being installed in the lubricating oil filter installation hole on the aero-engine and a sealing assembly for being installed outside the lubricating oil filter installa...

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Abstract

The invention provides a lubricating oil filter for an aeroengine. The lubricating oil filter comprises a filtering assembly for being mounted in a lubricating oil filter mounting hole of the aeroengine and a sealing assembly for being mounted outside the lubricating oil filter mounting hole. The lubricating oil filter mounting hole is partitioned into an oil inlet chamber and an oil outlet chamber by the filtering assembly. The sealing assembly is spaced apart from the filtering assembly to form a bypass oil passage. A bypass assembly and a pressure difference signal assembly are arranged onthe sealing assembly. The bypass assembly utilizes the pressure difference change between the oil inlet chamber and the oil outlet chamber to control the bypass oil passage to be connected and disconnected. The pressure difference signal assembly utilizes the pressure difference change between the oil inlet chamber and the oil outlet chamber to give out an alarm signal for the filtering assembly blockage, and the trigger pressure difference of the pressure difference signal assembly is smaller than the trigger pressure difference of the bypass assembly. A temperature locking assembly is arranged on the pressure difference signal assembly. The temperature locking assembly utilizes the temperature change to control the operation of the pressure difference signal assembly. The temperature locking assembly controls the pressure difference signal assembly to stop working and prevents the pressure difference signal assembly from giving a false alarm when the aeroengine starts at the low temperature.

Description

technical field [0001] The invention relates to the technical field of aero-engine lubricating oil systems, in particular to an aero-engine lubricating oil filter. Background technique [0002] When designing an aero-engine, it is usually necessary to design a lubricating oil system to lubricate the friction surfaces of parts to reduce friction and facilitate heat dissipation. The lubricating oil filter is one of the main accessories of the lubricating oil system. Before the lubricating oil enters the aero-engine, it needs to be filtered through the lubricating oil filter to prevent the mechanical impurities in the lubricating oil from entering the lubricating and cooling oil circuit of the aero-engine. [0003] Usually, the lubricating oil filter also has a bypass oil circuit to prevent the lubricating oil system from being cut off after the lubricating oil filter is clogged, and has an alarm indication function after clogging. When the aero-engine is started at low temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N39/06F16N29/04
CPCF16N29/04F16N39/06F16N2039/007F16N2210/08F16N2260/06
Inventor 周娇君陈为成浪永陈端凤
Owner CHINA HANGFA SOUTH IND CO LTD
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