Fluid flow control valve equipped with a conical flap and system comprising such valve

Patent metadata

Field	Value
Publication number	US-11236831-B2
Application number	US-202016786161-A
Country	US
Kind code	B2
Filing date	Feb 10, 2020
Priority date	Feb 8, 2019
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A valve for controlling a fluid flow includes a valve body, a shutter component configured to be able to transition from an open position allowing the circulation of fluid, to a closed position preventing the circulation of fluid. The component is characterized in that it includes a fixed conical support integral with the valve body, a conjugate conical flap rotationally movable relative to the fixed support, and fluid passage apertures respectively arranged in the conical flap and in the fixed support, and an actuator of the shutter component adapted to be able to control the position of the shutter component.

First claim

The invention claimed is:

1. A valve for controlling a fluid flow comprising:
a valve body comprising a fluid inlet, a fluid outlet, a fluid circulation channel, which extends in a direction, called axial direction, between said fluid inlet and said fluid outlet,
a shutter component arranged in said fluid circulation channel and configured to be able to transition from an open position allowing fluid to circulate in said circulation channel between the fluid inlet and the fluid outlet or vice versa, to a closed position preventing fluid from circulating in the circulation channel between the fluid inlet and the fluid outlet or vice versa,
an actuator of said shutter component adapted to be able to control the position of said shutter component in said fluid circulation channel characterized in that said shutter component comprises:
a fixed conical support integral with the valve body and having a tip oriented towards said fluid inlet of said valve body,
a conjugate conical flap rotationally movable relative to the fixed support and having a tip oriented towards said fluid inlet of said valve body,
at least one fluid passage aperture arranged in said conical flap and at least one conjugate fluid passage aperture arranged in said fixed support so as to allow fluid to circulate through said shutter component when said apertures are opposite one another and defining said open position,
a gasket seal axially arranged between said conical flap and said fixed conical support, and
means for spontaneous axial movement of the conical flap against the fixed support, which means comprise at least one spring configured to allow the conical flap to be kept away from the fixed support when said shutter component is in said open position or in an intermediate position and to be compressed when said shutter component is in said closed position, so as to allow axial movement of said flap that compresses said gasket seal.

2. The fluid flow control valve according to claim 1 , characterized in that said conical flap and said fixed support each respectively comprise an odd number of evenly distributed fluid passage apertures.

3. The fluid flow control valve according to claim 1 , characterized in that it further has at least one axis of symmetry that extends along the axial direction from said tip of the fixed support and an angle α defining an incline of said apertures of the conical flap and of the support fastened relative to said axis of symmetry of the valve, said angle α being less than or equal to 30°.

4. The fluid flow control valve according to claim 1 , characterized in that said actuator comprises contactless actuation means of said shutter component.

5. The fluid flow control valve according to claim 4 , characterized in that said contactless actuation means of said shutter component comprise electromagnetic means or magnetic means housed outside the fluid circulation channel.

6. The fluid flow control valve according to claim 5 , characterized in that said electromagnetic means comprise at least one stator winding and said conical flap comprises permanent magnets.

7. The fluid flow control valve according to claim 5 , characterized in that said magnetic means comprise an electric motor mounted on a magnetic ring provided with magnets and said conical flap comprises magnets.

8. An air-conditioning system for an air or rail transport vehicle, the system comprising:
an air-conditioner; and,
an air control valve controlling passage of air in the air-conditioner, the valve comprising:
a valve body comprising a fluid inlet, a fluid outlet, a fluid circulation channel, which extends in a direction, called axial direction, between said fluid inlet and said fluid outlet,
a shutter component arranged in said fluid circulation channel and configured to be able to transition from an open position allowing fluid to circulate in said circulation channel between the fluid inlet and the fluid outlet or vice versa, to a closed position preventing fluid from circulating in the circulation channel between the fluid inlet and the fluid outlet or vice versa,
an actuator of said shutter component adapted to be able to control the position of said shutter component in said fluid circulation channel characterized in that said shutter component comprises:
a fixed conical support integral with the valve body and having a tip oriented towards said fluid inlet of said valve body,
a conjugate conical flap rotationally movable relative to the fixed support and having a tip oriented towards said fluid inlet of said valve body,
at least one fluid passage aperture arranged in said conical flap and at least one conjugate fluid passage aperture arranged in said fixed support so as to allow fluid to circulate through said shutter component when said apertures are opposite one another and defining said open position,
a gasket seal axially arranged between said conical flap and said fixed conical support, and
means for spontaneous axial movement of the conical flap against the fixed support, which means comprise at least one spring configured to allow the conical flap to be kept away from the fixed support when said shutter component is in said open position or in an intermediate position and to be compressed when said shutter component is in said closed position, so as to allow axial movement of said flap that compresses said gasket seal.

9. An air or rail transport vehicle comprising
at least one propulsion engine, a cabin and at least one air-conditioning system for said cabin, characterized in that the air-conditioning system for the cabin comprises an air control valve comprising:
a valve body comprising a fluid inlet, a fluid outlet, a fluid circulation channel, which extends in a direction, called axial direction, between said fluid inlet and said fluid outlet,
a shutter component arranged in said fluid circulation channel and configured to be able to transition from an open position allowing fluid to circulate in said circulation channel between the fluid inlet and the fluid outlet or vice versa, to a closed position preventing fluid from circulating in the circulation channel between the fluid inlet and the fluid outlet or vice versa,
an actuator of said shutter component adapted to be able to control the position of said shutter component in said fluid circulation channel characterized in that said shutter component comprises:
a fixed conical support integral with the valve body and having a tip oriented towards said fluid inlet of said valve body,
a conjugate conical flap rotationally movable relative to the fixed support and having a tip oriented towards said fluid inlet of said valve body,
at least one fluid passage aperture arranged in said conical flap and at least one conjugate fluid passage aperture arranged in said fixed support so as to allow fluid to circulate through said shutter component when said apertures are opposite one another and defining said open position,
a gasket seal axially arranged between said conical flap and said fixed conical support, and
means for spontaneous axial movement of the conical flap against the fixed support, which means comprise at least one spring configured to allow the conical flap to be kept away from the fixed support when said shutter component is in said open position or in an intermediate position and to be compressed when said shutter component is in said closed position, so as to allow axial movement of said flap that compresses said gasket seal.

Assignees

• Liebherr Aerospace Toulouse Sas

Inventors

• Lafond Eric
• Arnaud Adrien
• Wojcieszonak Rémi

Classifications

• B64D2013/0603

  Environmental Control Systems · CPC title

• B64D13/00

  Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space · CPC title

• F16K3/34 Primary

  Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve · CPC title

• B64D13/06

  the air being conditioned (pressurising B64D13/02) · CPC title

• F16K3/22 Primary

  with sealing faces shaped as surfaces of solids of revolution (F16K13/02 takes precedence; with resilient valve members F16K3/28) · CPC title