Valve

Patent metadata

Field	Value
Publication number	US-11560954-B2
Application number	US-202117349392-A
Country	US
Kind code	B2
Filing date	Jun 16, 2021
Priority date	Jun 17, 2020
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A valve for controlling a fluid flow, including a valve housing, which is provided with a first fluid connection, a fluid channel and a second fluid connection, further including a valve member which is pivotally mounted in the fluid channel, and a drive for introducing a movement onto the valve member, the valve member having a rigid carrier and a flexible membrane with a sealing region which is provided for a sealing abutment against a valve seat and which is fixed to the carrier and to the valve housing by a circumferentially formed fastening region, wherein a deformation region of the flexible membrane is located between the sealing region and the fastening region and is arranged between a first deformation plane and a second deformation plane, the first deformation plane and the second deformation plane each being aligned parallel to a pivot axis determined by the pivot pin and delimiting a deformation space, and wherein the pivot pin is accommodated at least partially in the deformation space.

First claim

What is claimed is:

1. A valve for controlling a fluid flow, comprising a valve housing, which is provided with a first fluid connection and with a second fluid connection and with a fluid channel extending between the first fluid connection and the second fluid connection, further comprising a valve member, which is located in the fluid channel and which is pivotally mounted with a pivot pin in the valve housing, and with a drive for introducing a movement onto an upper side of the valve member, the valve member comprising a carrier and a flexible membrane which is fixed by a sealing region to an underside of the carrier, which underside is oriented opposite to the upper side of the carrier and which flexible membrane is connected to the valve housing by a circumferential fastening region, wherein a deformation region of the flexible membrane is formed between the sealing region and the circumferential fastening region of the flexible membrane, wherein the sealing region is provided for a sealing abutment against a valve seat which is located opposite to the underside of the carrier in the fluid channel, wherein the deformation region is arranged between a first deformation plane and a second deformation plane, the first deformation plane and the second deformation plane each being aligned parallel to a pivot axis determined by the pivot pin and delimiting a deformation space, and wherein the pivot pin is accommodated at least partially in the deformation space,
wherein a first fastening plane adjoining an upper side of the circumferential fastening region and a second fastening plane adjoining a lower side of the circumferential fastening region delimit a fastening space, wherein the pivot pin is located in the fastening space or intersects with the fastening space.

2. The valve according to claim 1 , wherein the sealing region of the flexible membrane comprises a sealing section which, in a sealing position of the valve member, is provided for sealing contact with the valve seat formed opposite the underside of the carrier in the fluid channel, wherein the sealing section is supported on a support surface of the carrier and wherein a support plane determined by the support surface of the carrier intersects the pivot pin.

3. The valve according to claim 1 , wherein corner points of a movement space are determined by a first outer edge of the underside of the carrier in the sealing position and by the first outer edge in a release position and by a second outer edge of the underside of the carrier in the sealing position and by the second outer edge in the release position and wherein the pivot pin is located in the movement space or intersects the movement space.

4. A valve for controlling a fluid flow, comprising a valve housing, which is provided with a first fluid connection and with a second fluid connection and with a fluid channel extending between the first fluid connection and the second fluid connection, further comprising a valve member, which is located in the fluid channel and which is pivotally mounted with a pivot pin in the valve housing, and with a drive for introducing a movement onto an upper side of the valve member, the valve member comprising a carrier and a flexible membrane which is fixed by a sealing region to an underside of the carrier, which underside is oriented opposite to the upper side of the carrier and which flexible membrane is connected to the valve housing by a circumferential fastening region, wherein a deformation region of the flexible membrane is formed between the sealing region and the circumferential fastening region of the flexible membrane, wherein the sealing region is provided for a sealing abutment against a valve seat which is located opposite to the underside of the carrier in the fluid channel, wherein the deformation region is arranged between a first deformation plane and a second deformation plane, the first deformation plane and the second deformation plane each being aligned parallel to a pivot axis determined by the pivot pin and delimiting a deformation space, and wherein the pivot pin is accommodated at least partially in the deformation space,
wherein an orifice of the valve seat determines an orifice plane and wherein a straight line which extends from an intersection of a central axis of the orifice with the orifice plane to the pivot axis of the carrier assumes an angle with respect to the orifice plane which angle is smaller than 30 degrees.

5. The valve according to claim 4 , wherein the fluid channel is delimited by a valve housing upper part and by a valve housing lower part and wherein the valve seat and a second valve seat are arranged in the valve housing lower part and wherein a third fluid connection is located between the valve seat and the second valve seat and extends through the valve housing lower part starting from the fluid channel.

6. The valve according to claim 4 , wherein a first sealing section and a second sealing section are formed on the underside of the carrier and are located in a common sealing plane and wherein a protrusion is formed between the first sealing section and the second sealing section, which protrusion projects above the common sealing plane and which defines a protrusion surface, wherein a distance between the protrusion surface and the pivot pin is at least 50 percent of a diameter of the pivot pin.

7. The valve according to claim 1 , wherein the valve seat and a second valve seat are formed in the fluid channel, wherein a first orifice of the valve seat defines a first orifice plane and wherein a second orifice of the second valve seat defines a second orifice plane and wherein an intersection line of the first orifice plane and the second orifice plane is located within a cross section of the pivot pin.

8. The valve according to claim 1 , wherein the carrier comprises at least one recess which extends from the underside of the carrier in the direction of the upper side of the carrier and wherein the flexible membrane comprises a retaining web which is received in the recess and/or wherein the flexible membrane comprises a circumferential sleeve which extends from the underside of the carrier in the direction of the upper side of the carrier.

9. The valve according to claim 1 , wherein the fastening region bears against a lower side region of a valve housing upper part and against an oppositely arranged upper side region of a valve housing lower part and is received between the lower side region and the upper side region in a force-fitting manner or in a force-fitting and form-fitting manner.

10. A valve for controlling a fluid flow, comprising a valve housing, which is provided with a first fluid connection and with a second fluid connection and with a fluid channel extending between the first fluid connection and the second fluid connection, further comprising a valve member, which is located in the fluid channel and which is pivotally mounted with a pivot pin in the valve housing, and with a drive for introducing a movement onto an upper side of the valve member, the valve member comprising a carrier and a flexible membrane which is fixed by a sealing region to an underside of the carrier, which underside is oriented opposite to the upper side of the carrier and which flexible membrane is connected to the valve housing by a circumferential fastening region, wherein a deformation region of the flexible membrane is formed between the sealing region and the circumferential fastening region of the flexible membrane, wherein the sealing region is provided for a sealing abutment against a valve seat which is located opposite to the underside of the carrier in the fluid channel, wherein an orifice of the valve seat determines an orifice plane

Assignees

• Festo Se & Co Kg

Inventors

• Vogt Bernhard
• Schietinger Stefan
• Wunderlich Bengt Erich
• Zadravec Sascho
• Grad Lukas

Classifications

• Y10T137/86847

  Pivoted valve unit · CPC title

• F16K7/16

  the diaphragm being mechanically actuated, e.g. by screw-spindle or cam · CPC title

• F16K11/052

  with pivoted closure members, e.g. butterfly valves · CPC title

• F16K7/17 Primary

  the diaphragm being actuated by fluid pressure · CPC title

• F16K31/10

  with additional mechanism between armature and closure member · CPC title