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Device for cooling heat-sensitive control members of a pneumatic or electropneumatic valve, and valve equipped with such a cooling device

A technology for controlling components and cooling equipment, applied in valve heating/cooling devices, heat exchange equipment, lighting and heating equipment, etc., which can solve problems such as high exhaust air temperature and incompatibility of electromechanical control components

Active Publication Date: 2021-07-23
LIEBHERR AEROSPACE TOULOUSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Discharge air is hot and sometimes incompatible with the valve's electromechanical control components
[0010] Also, moving control components into cooler areas of the aircraft is known to create the same disadvantages as air relief valves

Method used

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  • Device for cooling heat-sensitive control members of a pneumatic or electropneumatic valve, and valve equipped with such a cooling device
  • Device for cooling heat-sensitive control members of a pneumatic or electropneumatic valve, and valve equipped with such a cooling device
  • Device for cooling heat-sensitive control members of a pneumatic or electropneumatic valve, and valve equipped with such a cooling device

Examples

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Embodiment Construction

[0054] For purposes of illustration and clarity, the drawings have not strictly adhered to scale or proportion. Throughout the following detailed description with reference to the accompanying drawings, unless otherwise specified, each element of a cooling device is described as an arrangement when it is equipped with a valve according to an embodiment of the present invention.

[0055] Furthermore, throughout the drawings, identical, similar or similar elements are denoted with the same reference numerals.

[0056] figure 1 Schematically shows an air relief system according to one embodiment of the invention, intended to supply air conditioning components for the passenger cabin of an aircraft and comprising valves.

[0057] figure 1 The system comprises a propulsion engine 10 of an aircraft comprising an air bleed port 11 connected by a conduit 12 to an air bleed valve 20 according to an embodiment of the invention, which is better known by the acronym The acronym PRV (Pr...

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Abstract

The invention relates to a device (30) for cooling heat-sensitive control members (29) of a pneumatic or electropneumatic valve (20), comprising a containment casing (31) designed to contain said control members (29); a fresh air inlet (32) in said containment casing (31); an air outlet (33) of said containment casing, provided with a ventilation air tube (34) that comprises: an air acceleration column (35) which puts into fluidic communication said containment casing (31) and the air outlet (33); a primary supply (37) for supplying the acceleration column (35) with primary air; a secondary supply (38) for supplying the acceleration column (35) with secondary air, provided in said containment casing (31) such that the primary air can drive and accelerate the secondary air in the direction of the air outlet so as to produce forced air ventilation in said containment casing (31) between the air inlet (32) and the air outlet (33).

Description

technical field [0001] The invention relates to a pneumatic or electropneumatic valve and to a device for cooling a control member of the valve. The invention relates more particularly to a valve intended to be placed in the environment of a propulsion engine of an aircraft, such as a discharge valve or an air bleed valve of an air compressor. Background technique [0002] An air relief valve on an aircraft's propulsion engine can relieve high-pressure air intended, for example, to supply the aircraft's cabin's Environmental Control System, better known by the acronym ECS. [0003] Such valves are usually placed in the engine environment, ie in the engine compartment or next to the engine, on the air discharge hose. [0004] During aircraft flight, this environment is subject to high temperatures that can reach nearly 500°C. [0005] It is therefore necessary to provide means for cooling the control components of these relief valves. In fact, the high temperatures prevail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/14F02C6/06F02C9/18F16K49/00F04F5/20
CPCF01D17/148F02C6/06F02C9/18F04F5/20F05D2260/221F05D2260/601F05D2260/608F16K49/005F04F5/52Y02T50/60Y02T50/50F28F13/06
Inventor 弗雷德里克·布里斯蒂尔史蒂芬·福克
Owner LIEBHERR AEROSPACE TOULOUSE