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Mechanical valve capable of switching air source in self-adaptive mode

An adaptive switching, mechanical technology, applied in the field of valve, to achieve the effect of improving life and reliability

Pending Publication Date: 2022-03-22
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 mechanical valve for adaptively switching gas sources to solve or alleviate at least one of the above problems

Method used

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  • Mechanical valve capable of switching air source in self-adaptive mode
  • Mechanical valve capable of switching air source in self-adaptive mode
  • Mechanical valve capable of switching air source in self-adaptive mode

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Embodiment Construction

[0036] 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.

[0037] In order to solve the problem in the prior art that the engine high-pressure air is high-temperature and high-pressure when the engine is in a high state, and the use of external air with low bleed air pressure as the engine bleed air is likely to cause lubricating oil leakage in the bearing cavity, this application proposes a Adaptive switching origin of mechanical valves.

[0038] Such as Figure 1 to Figure 3 As shown, the mechanical valve provided in this application includes a housing 11 , a valve core 12 , a spring 13 and an end cap 14 .

[0039] Wherein, the casing 11 has a cavity, and the high-pressure air inlet 111 and the low-pressure air inlet 113 are adjacently connected to the cavity on ...

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Abstract

The invention provides a self-adaptive air source switching mechanical valve which comprises a shell, the shell is provided with a containing cavity, a high-pressure air inlet and a low-pressure air inlet which are communicated with the containing cavity and are adjacent to each other are formed in the shell, and an air outlet which is communicated with the containing cavity is formed in the side, opposite to the high-pressure air inlet and the low-pressure air inlet, of the shell. A high-pressure control port is formed in the side, close to the high-pressure air inlet, of the containing cavity, and first pressure gas is connected into the high-pressure air inlet and the high-pressure control port through pipelines. The valve element is installed in the containing cavity and can slide, and the middle of the valve element is provided with a circulation part through which gas can flow; the cover plate is arranged on one side of the non-high-pressure control port of the shell, the cover plate is provided with a low-pressure control port, and the low-pressure gas inlet and the low-pressure control port are connected into second pressure gas through pipelines; and the spring is arranged between the valve core and the cover plate. According to the valve, the bearing cavity can be sealed, and the bearing can be cooled.

Description

technical field [0001] The application belongs to the technical field of valves, in particular to a mechanical valve for adaptively switching gas sources. Background technique [0002] When the engine is working, it needs to bleed air from the engine to seal or cool the engine. However, with the different working conditions of the engine, the pressure and temperature of the airflow introduced also change. If a certain place of bleed air is always used, this kind of bleed air cannot meet the increasing demand of the engine. For example, if fan-level bleed air is used, the pressure of the engine cannot meet the sealing requirements when the engine is in a low state. High pressure and temperature are too high to meet cooling needs. Therefore, only using a single air source as the engine bleed air cannot meet the needs of the engine's full work. Contents of the invention [0003] The purpose of the present application is to provide a mechanical valve for adaptively switchin...

Claims

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Application Information

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IPC IPC(8): F02D9/02F01P11/00
CPCF02D9/02F01P11/00
Inventor 左斌辉赵迎群胡兴龙苏壮李国权
Owner AECC SHENYANG ENGINE RES INST
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