Fuel cell system

Patent metadata

Field	Value
Publication number	US-10193168-B2
Application number	US-201715704558-A
Country	US
Kind code	B2
Filing date	Sep 14, 2017
Priority date	Jun 2, 2011
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A fuel cell system that generates electric power by supplying anode gas and cathode gas to a fuel cell includes a control valve adapted to control the pressure of the anode gas to be supplied to the fuel cell; a buffer unit adapted to store the anode-off gas to be discharged from the fuel cell; a pulsation operation unit adapted to control the control valve in order to periodically increase and decrease the pressure of the anode gas at a specific width of the pulsation; and a pulsation width correcting unit adapted to correct the width of the pulsation on the basis of the temperature of the buffer unit.

First claim

The invention claimed is:

1. A fuel cell system that generates electric power by supplying anode gas and cathode gas to a fuel cell, comprising:
a control valve adapted to control a pressure of the anode gas to be supplied to the fuel cell;
a buffer unit adapted to store an anode-off gas to be discharged from the fuel cell; and
a controller programmed to:
control the control valve in order to periodically increase and decrease the pressure of the anode gas at a specific width of a pulsation; and
correct the width of the pulsation based on a temperature of an upstream buffer volume comprising an anode gas flow passage from the control valve to the fuel cell.

Assignees

• Nissan Motor

Inventors

• Nishimura Hidetaka
• Ichikawa Yasushi

Classifications

• H01M8/04843 Primary

  of fuel cell exhausts · CPC title

• H01M8/04388

  of anode reactants at the inlet or inside the fuel cell · CPC title

• H01M2008/1095

  Fuel cells with polymeric electrolytes · CPC title

• H01M8/04753

  of fuel cell reactants · CPC title

• H01M8/04104 Primary

  Regulation of differential pressures · CPC title