DRIVING PRESSURE ADJUSTING VALVE DEVICE FOR FUEL CELL SYSTEM

• US 20190326617A1
• Filed: 09/27/2018
• Published: 10/24/2019
• Est. Priority Date: 04/18/2018
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: PARK, Jeong Hee, LEE, Byeong Seung, HA, Kyoung Ku, KIM, Hyunyoo
• Granted Patent: US 10,873,095 B2
• Time in Patent Office: Days
• CPC Class Codes: F16K 1/2014 Shaping of the valve member
• CPC Class Codes: F16K 1/205 the sealing being arranged on the valve member
• CPC Class Codes: F16K 1/32 Details details of more general applicability F16K25/00 - F16K51/00
• CPC Class Codes: F16K 25/00 Details relating to contact between valve members and seats movement of valve members other than for opening and closing F16K29/00
• CPC Class Codes: F16K 47/045 and the closure member being rotatable
• CPC Class Codes: H01M 8/04089 of gaseous reactants
• CPC Class Codes: H01M 8/04097 with recycling of the reactants H01M8/04119, H01M8/04104 take precedence
• CPC Class Codes: H01M 8/04104 Regulation of differential pressures
• CPC Class Codes: H01M 8/04141 by water containing exhaust gases
• CPC Class Codes: H01M 8/04761 of fuel cell exhausts
• CPC Class Codes: H01M 8/04783 Pressure differences, e.g. between anode and cathode
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A valve device includes: a valve housing having a valve passage connected with an air flow passage; a valve disk rotatably disposed inside the valve housing through a valve driver and changing air flow cross-section of the valve passage; and a porous member installed at the valve disk and positioned in an open section between the valve disk and the valve passage.

Claims

1. A valve device, comprising:

a valve housing having a valve passage connected with an air flow passage of an exhaust system;

a valve disk rotatably disposed to be spaced apart from the valve passage inside the valve housing through a valve driver and adjusting an air flow cross-section of the valve passage; and

a porous member attached to the valve disk and disposed in an open section between the valve disk and the valve passage.

2. The valve device of claim 1, wherein:

the exhaust system releases an air exhausted from a humidifier of a fuel cell system to atmosphere.

3. The valve device of claim 2, wherein:

the valve device changes the air flow cross-section of the valve passage through the valve disk and adjusts a pressure of a fuel cell stack of the fuel cell system.

4. The valve device of claim 1, wherein:

the valve disk is tilted around a valve shaft, which is connected with the valve driver, has a flap disk shape and changes the air flow cross-section of the valve passage.

5. The valve device of claim 1, wherein:

the porous member is attached to one surface of the valve disk corresponding to an opening end of the valve passage.

6. The valve device of claim 1, wherein:

the porous member includes a mesh foam having a predetermined porosity.

7. The valve device of claim 1, wherein:

the valve disk includes open sections, each of which having a different area from each other with respect to the valve passage, and

the porous member has a porosity in an open section having a smallest area among the open sections different from porosities of the remaining opening sections.

8. The valve device of claim 7, wherein:

the porous member has a porosity of being getting smaller as an area of each of the open sections becomes larger.

9. A valve device, comprising:

a valve housing having a valve passage connected with an air flow passage;

a valve disk rotatably installed at the valve housing through a valve driver and changing air flow cross-section of the valve passage;

a porous member installed at the valve disk and positioned in an open section between the valve disk and the valve passage; and

a mesh plate installed at the valve passage and supporting the porous member,

wherein the porous member is provided to be compressed and restored by rotation of the valve disk between the valve disk and the mesh plate.

10. The valve device of claim 9, wherein:

the porous member is compressed by the valve disk in a state of being supported by the mesh plate, and a porosity changes according to a degree of compression.

11. A valve device, comprising:

a valve housing provided with a valve passage connected with an air flow passage of an exhaust system;

a valve disk rotatably disposed inside the valve housing through a valve driver and adjusting an air flow cross-section of the valve passage;

a mesh plate installed at the valve passage and supporting the porous member; and

a porous member attached to one side of the mesh plate corresponding to the valve disk and disposed in an open section between the valve disk and the valve passage,

wherein the valve disk compresses and restores the porous member by rotation of the valve disk between the valve disk and the mesh plate.

12. The valve device of claim 11, wherein:

the porous member is compressed by the valve disk in a state of being supported by the valve disk, and a porosity changes according to a degree of compression.

13. The valve device of claim 9 or claim 11, wherein:

the porous member includes a mesh foam.

14. The valve device of claim 11, wherein:

the porous member includes a mesh foam.