Fluid control valve

Patent metadata

Field	Value
Publication number	US-10559837-B2
Application number	US-201515121086-A
Country	US
Kind code	B2
Filing date	Jan 26, 2015
Priority date	Mar 7, 2014
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

A fluid control valve is connected to a wet gas flow passage in order to control a flow of a wet gas, and includes an introduction passage for introducing the wet gas into the fluid control valve, a filter including mesh for removing foreign matter contained in the wet gas flowing through the introduction passage, a discharge passage that includes a valve port disposed above the introduction passage and discharges the wet gas that has passed through the filter from the fluid control valve through the valve port, and a valve portion that opens and closes the valve port using a valve body. In this fluid control valve, the filter is disposed in a lowermost portion of the introduction passage.

First claim

The invention claimed is:

1. A fluid control valve connected to a wet gas flow passage in order to control a flow of wet gas, comprising:
an introduction passage for introducing the wet gas into the fluid control valve;
a filter that is formed in a tubular shape and has a hole in a tubular side face thereof such that water is suctioned up over the tubular side face;
a guiding passage disposed above the filter provided to extend upward from an upper portion of the filter;
a valve port disposed above the introduction passage and constituted by an upper portion open end of the guiding passage;
a discharge passage that discharges the wet gas that has passed through the filter from the fluid control valve through the valve port; and
a valve portion that opens and closes the valve port using a valve body,
wherein the filter is configured to be disposed in a lowermost point of the introduction passage.

2. The fluid control valve as defined in claim 1 , wherein the introduction passage is formed to incline downward toward the lowermost point.

3. The fluid control valve as defined in claim 1 , wherein the fluid control valve is a purge valve for discharging anode off-gas serving as a wet gas discharged from a fuel cell to an exterior of a fuel cell system.

4. A fuel cell system comprising:
the fluid control valve according to claim 3 ,
wherein the fuel cell system further comprising:
an anode gas discharge passage serving as the wet gas flow passage through which the anode off-gas discharged from the fuel cell flows; and
a buffer portion for storing the anode off-gas discharged from the fuel cell,
wherein the fuel cell system is a dead end anode fuel cell system, in which the anode off-gas discharged into the anode gas discharge passage is pushed into the buffer portion.

5. The fuel cell system according to claim 4 , wherein the introduction passage of the fluid control valve includes two ports through which the wet gas is introduced into the introduction passage,
wherein one of the two ports is connected to the anode gas discharge passage, and
wherein another of the two ports is connected to the buffer portion.

Assignees

• Nissan Motor
• Kk saginomiya seisakusho

Inventors

• Usami Takatada
• Takeda Tsuyoshi
• Okawara Ichiro

Classifications

• F16K31/0672

  the valve member being a diaphragm · CPC title

• H01M2250/20

  Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M2008/1095

  Fuel cells with polymeric electrolytes · CPC title

• H01M8/04089

  of gaseous reactants · CPC title

• H01M8/04231 Primary

  Purging of the reactants · CPC title