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Gas pressure reducer with electrically-powered master system

A technology of pressure reducer and main system, which is applied in the direction of electric fluid pressure control, fluid pressure control without auxiliary power, fluid pressure control, etc. It can solve the major problems of operation continuity and restrict the operation of gas pressure reducers.

Inactive Publication Date: 2016-10-12
ZODIAC AEROTECHNICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the event of an electrical failure, a problem arises as the main system is electric
In fact, the shutdown of the main system due to electrical failure can limit the operation of the entire gas pressure reducer, and even the operation of the entire gas delivery system including the gas pressure reducer
such operational failures are unacceptable for some uses of the system, especially for aircraft, where continuity of operation is a major concern

Method used

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  • Gas pressure reducer with electrically-powered master system
  • Gas pressure reducer with electrically-powered master system
  • Gas pressure reducer with electrically-powered master system

Examples

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Embodiment Construction

[0034] The labels below are for Figure 1a and Figure 1b is generic and has the following meanings:

[0035] 100 integral gas pressure reducer

[0036] A-A Longitudinal axis of the gas pressure reducer

[0037] 1 Housing of the gas pressure reducer

[0038] High pressure gas inlet for 1HP gas reducer

[0039] Low pressure gas outlet for 1LP gas reducer

[0040] 2 moving elements

[0041] 3 Biasing element, possibly consisting of a spring

[0042] 3a Lower end of biasing element

[0043] 3b Upper end of biasing element

[0044] 4 diaphragm

[0045] 5 valves

[0046] 11 Filters, e.g. sintered filters

[0047] The housing 1 as well as the moving element 2 can each be multi-part, especially with respect to processing issues and assembly of the entire gas pressure reducer.

[0048]The pressure value at the gas inlet 1HP can initially be about 200 bar and the value at the gas outlet 1LP is between the external ambient pressure and 10 bar. In general, the pressure at th...

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PUM

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Abstract

A gas pressure reducer (100) comprises a mobile element (2) arranged for driving a pressure regulating valve (5) according to a pressure force, a biasing element (3) for pushing the mobile element toward a rest position, and an electrically-powered master system which acts on the biasing element for varying a return force of said biasing element. The master system allows varying a reference pressure value for the regulation of the pressure existing at a low pressure gas outlet (1 LP). When the master system is no longer electrically supplied, the mobile element (2) is driven by the pressure force with respect to a last value of the return force existing just before electrical supply of said master system has stopped.

Description

technical field [0001] The present invention relates to a gas pressure reducer, also known as a gas regulator, which includes an electric main system. Background technique [0002] A gas pressure reducer known prior to the present invention usually consisted only of: [0003] - high pressure gas inlet, [0004] - low pressure gas outlet, [0005] - a gas flow path connecting the high-pressure gas inlet to the low-pressure gas outlet and including the valve, [0006] - a moving element arranged to actuate a valve to allow, restrict or terminate gas flow in the gas flow path depending on the position of the moving element, and [0007] - A biasing element arranged to push the moving element towards the rest position in dependence on a return force exerted by the biasing element on the moving element. [0008] The moving element comprises a surface portion which is sensitive to the pressure present at the low-pressure gas outlet, thereby generating pressure. In operation, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B7/14A62B9/02G05D16/20G05D16/06
CPCA62B9/02G05D16/0663G05D16/2086A62B7/14A62B18/02A62B18/10
Inventor 马西厄·弗罗马盖
Owner ZODIAC AEROTECHNICS