Fluid pressure regulator

Patent metadata

Field	Value
Publication number	US-2020386335-A1
Application number	US-201916711811-A
Country	US
Kind code	A1
Filing date	Dec 12, 2019
Priority date	Jun 6, 2019
Publication date	Dec 10, 2020
Grant date	—

Abstract

A fluid pressure regulator includes at least one fluid inlet conduit for connection to a pressurised fluid source, an outlet conduit. and an elastically expansible chamber arranged between the at least one fluid inlet conduit and the outlet conduit. The elastically expansible chamber being configured to elastically deform the at least one fluid inlet conduit upon expansion to modify the cross sectional area of the at least one fluid inlet conduit.

First claim

1 . A fluid pressure regulator comprising:
at least one fluid inlet conduit for connection to a pressurised fluid source; an outlet conduit; and an elastically expansible chamber arranged between the at least one fluid inlet conduit and the outlet conduit, the elastically expansible chamber being configured to elastically deform the at least one fluid inlet conduit upon expansion to modify the cross sectional area of the at least one fluid inlet conduit.

2 . The pressure regulator of claim 1 , comprising a plurality of fluid inlet conduits, each deformable by the elastically expansible chamber upon expansion thereof.

3 . The pressure regulator of claim 2 , wherein the fluid inlet conduits are circumferentially symmetrically arranged about a centreline of the outlet conduit.

4 . The pressure regulator of claim 2 , comprising a manifold connecting the fluid inlet conduits.

5 . The pressure regulator of claim 1 , wherein the elastically expansible chamber comprises at least one deforming element on an external surface thereof for engaging a respective fluid inlet conduit.

6 . The pressure regulator of claim 1 , further comprising a housing surrounding the at least one fluid inlet conduit and the outlet conduit.

7 . The pressure regulator of claim 6 , wherein the housing comprises at least one anvil element on an internal surface thereof opposed to the deforming element whereby the fluid inlet conduit is deformed between the deforming element and the anvil element.

8 . The pressure regulator of claim 1 , wherein the expansible chamber comprises a balloon.

9 . The pressure regulator of claim 1 , wherein the expansible chamber comprises a non-expansible portion and at least one expansible portion, wherein each of the at least one expansible portions is configured upon expansion to modify the cross sectional area of a respective one of the at least one fluid inlet conduits.

10 . The pressure regulator of claim 1 , wherein the expansible chamber comprises a flexible material.

11 . The pressure regulator of claim 10 , wherein the expansible chamber is metallic, elastomeric or composite.

12 . The pressure regulator of claim 1 , wherein the pressure regulator is additively manufactured.

13 . An aircraft evacuation system comprising:
an inflatable evacuation slide; the fluid pressure regulator of claim 1 ; and a pressurised fluid source connected to the at least one inlet conduit of the pressure regulator, wherein the system is configured to inflate the evacuation slide using flow from the outlet conduit of the pressure regulator.

14 . The aircraft evacuation system of claim 13 , comprising:
an aspirator wherein the system is configured to inflate the evacuation slide by the flow from the outlet conduit of the pressure regulator inducing a pressure differential in the aspirator to induce air into the evacuation slide.

15 . The aircraft evacuation system of claim 13 , further comprising a plurality of pressurised fluid sources each connected to a respective inlet conduit of the pressure regulator

Assignees

• Goodrich Corp

Inventors

• Murawski Tomasz
• Sapija Dariusz

Classifications

• B64D25/14

  Inflatable escape chutes · CPC title

• F16K15/021

  the valve member being a movable body around which the medium flows when the valve is open (F16K15/025 - F16K15/12 take precedence) · CPC title

• G05D16/0613 Primary

  the deformable sensing element acting as a throttling member · CPC title

• G05D16/0652

  using several membranes without spring · CPC title

• F16K15/202 Primary

  and with flexible valve member · CPC title