Gas flow regulator, reducing valve, valve and bottle fitted with such a regulator

Patent metadata

Field	Value
Publication number	US-2016258540-A1
Application number	US-201415030277-A
Country	US
Kind code	A1
Filing date	Sep 5, 2014
Priority date	Oct 18, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

A flow regulator comprising a body housing a gas duct comprising an upstream end configured to be connected to a gas source and a downstream end comprising an outlet connector and configured to be connected to a gas user with a regulated flow rate, the gas duct comprising a selective fluid flow regulation component for the gas circulating between the upstream and downstream end depending on the position of the control component with respect to the body, wherein the control component comprises a peripheral wall delimiting a central hollow volume and in that the outlet connector is situated within the central cavity.

First claim

1 .- 15 . (canceled)

16 . A gas flow regulator comprising a body comprising a gas duct comprising an upstream end configured to be connected to a source of gas and a downstream end comprising an outlet connector and configured to be connected to a user of the gas with a regulated flow rate, the gas duct also comprising a flow regulator for selective regulation of the flow of the gas flowing between the upstream end and the downstream end, the flow regulator comprising a manual control member configured to be movable relative to the body and cooperating with the flow regulator to control the flow rate of gas, with the flow rate indicated by the position of the manual control member relative to the body, wherein the manual control member comprises a grasping peripheral wall delimiting a central hollow volume open toward the exterior of the regulator and wherein the outlet connector is situated in and opens into the central hollow volume, the hollow volume being delimited by a wall of the manual control member forming a protective enclosure around the outlet connector and spaced from the latter.

17 . The flow regulator of claim 16 , wherein the manual control member further comprises a portion of tubular, frustoconical or ring general shape and wherein the outlet connector is situated in the central portion of said tubular, frustoconical or ring shape.

18 . The flow regulator of claim 16 , wherein the manual control member and the outlet connector are concentrically disposed.

19 . The flow regulator of claim 16 , wherein the outlet connector has an oblong shape extending along a longitudinal axis and wherein, in a direction parallel to the longitudinal axis of the outlet connector, the terminal end of the outlet connector is situated at the level of or set back from the terminal end of the manual control member.

20 . The flow regulator of claim 16 , wherein the manual control member is movable in rotation on the body about a rotation axis.

21 . The flow regulator of claim 16 , wherein the manual control member is movable in rotation on the body about an axis of rotation and of symmetry passing through the central hollow volume and wherein the outlet connector is fixed relative to the body and is situated on the rotation axis of the manual control member.

22 . The flow regulator of claim 16 , wherein the flow regulator comprises a plate including sets of calibrated holes, with respective different diameters corresponding to particular different gas flow rates, the manual control member configured to select a particular set of the calibrated holes on the path of the gas determined by the position of the manual control member relative to the body.

23 . The flow regulator of claim 22 , wherein the flow regulator is configured to be movable relative to the body and constrained to move with the manual control member, the body comprising a passage a first end of which communicates with the downstream end of the gas duct and the second end of which communicates with the set of calibrated holes on a first face of the flow regulator, the set of calibrated holes configured to turn between the upstream end and the downstream end of the gas duct.

24 . The flow regulator of claim 23 , wherein the manual control member is configured to be movable in rotation relative to the body and in that the flow regulator is constrained to rotate with the manual control member.

25 . The flow regulator of claim 22 , wherein the flow regulator is fixed relative to the body and in that the manual control member is movable relative to the flow regulator and comprises a passage a first end of which communicates with the downstream end of the gas duct and the second end of which is able to communicate in a sealed manner with each of the set of calibrated holes on a first face of the flow regulator.

26 . A pressure reducing valve configured to be connected to a source of gas under pressure, the reducing valve comprising a body accommodating a gas circuit having an upstream end including an inlet connector configured to be connected selectively to a source of pressure such as an outlet connector of a gas valve and a downstream end including an outlet connector configured to be connected to a user of the gas at reduced pressure, the gas circuit comprising a pressure reducing valve configured to reduce the pressure of the gas circulating in the gas circuit to a particular fixed or adjustable pressure, wherein the pressure reducing valve comprises a flow regulator as claimed in claim 16 , wherein the outlet connector of the flow regulator comprises an outlet connector of the pressure reducing valve.

27 . A valve for a pressurized gas bottle comprising a valve body comprising a mounting end configured to be connected to an orifice of a gas bottle, an internal circuit for drawing off the fluid comprising a first end opening at the level of the mounting end and a second end opening at the level of an outlet connector situated on the valve body, wherein the valve comprises a flow regulator as claimed in claim 16 , wherein the outlet connector of the flow regulator constitutes an outlet connector of the valve.

28 . The valve of claim 27 , wherein the flow regulator comprises a plate including sets calibrated holes with different diameters corresponding to respective particular different gas flow rates, the manual control member selecting a particular calibrated hole on the path of the gas in the gas drawing off circuit as claimed in the position of the manual control member relative to the body of the valve.

29 . The valve of claim 28 , wherein the manual control member and the flow regulator are movable together relative to the body of the valve, the body of the flow regulator includes a passage a first end of which communicates with the drawing off circuit in the outlet connector and the other end of which communicates with the calibrated holes on a first face of the flow regulator, the set of calibrated holes being configured in turn on the drawing off circuit as claimed in the respective positions of the manual control member relative to the body of the valve.

30 . A pressurized fluid bottle including the valve of claim 27 .

Assignees

• Air Liquide

Inventors

• Germani Damien
• Rudnianyn Philippe
• Graviere Vincent
• Trevisan Adrien

Classifications

• F16K3/32 Primary

  Means for additional adjustment of the rate of flow · CPC title

• F16K3/08

  with circular plates rotatable around their centres · CPC title

• F17C2223/036

  Very high pressure (>80 bar) · CPC title

• F17C2205/0323

  Valves · CPC title

• F17C13/04

  Arrangement or mounting of valves (valves per se F16K {; snap-coupling of nipples F16L37/00}) · CPC title