Valve, Valve Controller, and Fuel Cell System

Abstract

Provided are a valve being able to adjust a flow rate of fluid out of a tank with a high accuracy, a valve controller, and a fuel cell system. The valve is configured to adjust the flow rate of fluid to the secondary side. The valve is disposed on the tank so that the secondary side is a discharge side for fluid from inside the tank. The valve is configured to adjust the flow rate of fluid from the tank by a duty control.

1 . An injector for adjusting a flow rate of hydrogen gas to a secondary side, wherein the injector is disposed on a mouthpiece portion of a tank so that the secondary side is a discharge side for the hydrogen gas from inside the tank, and the flow rate of the hydrogen gas from the tank to a fuel cell is configured to be adjustable by a duty control, and
 wherein the axis line of the injector is parallel to the axis line of the tank.   
   
   
       2 . The injector according to  claim 1 , comprising a flow rate adjusting mechanism for adjusting the flow rate by the duty control,
 wherein the flow rate adjusting mechanism is configured to block a discharge of the hydrogen gas from the tank.   
   
   
       3 . The injector according to  claim 2 , wherein the flow rate adjusting mechanism comprises a valve body, a valve seat that comes into contact/breaks contact with the valve body, and a solenoid for urging the valve body in directions in which the valve body comes into contact/breaks contact with the valve seat. 
   
   
       4 . The injector according to  claim 3 , wherein the valve seat has an opening at a center thereof, and
 wherein an area of the opening is changed depending on a position of the valve body.   
   
   
       5 . The injector according to  claim 3 , wherein the duty control is performed by changing a duty ratio of pulse-like excitation current supplied to the solenoid. 
   
   
       6 . The injector according to  claim 3 , wherein the flow rate adjusting mechanism is configured to apply a pressure in the tank to the valve body in a direction in which the valve body comes into contact with the valve seat. 
   
   
       8 . (canceled) 
   
   
       9 . The injector according to  claim 1 , wherein a main stop valve independent of the injector is disposed on the tank, and
 wherein the main stop valve is located on a primary side of the injector.   
   
   
       10 . The injector according to  claim 9 , wherein the main stop valve is located in the tank. 
   
   
       11 . A valve controller for controlling the injector according to  claim 1  by the duty control. 
   
   
       12 . A fuel cell system comprising:
 the injector according to  claim 1 ;   the tank; and   a fuel cell supplied with oxidant gas and hydrogen gas.   
   
   
       13 . A fuel cell system comprising:
 the injector according to  claim 1 ;   a tank storing the hydrogen gas;   a fuel cell supplied with the hydrogen gas from the tank; and   a main stop valve disposed on the tank so that the main stop valve is located at a primary side of the injector,   wherein the main stop valve is closed at a time of stopping of operation of the fuel cell system.