Patent ID: 7718289
Filing Date: 2010-05-18
Classification: H01M,Y02E

Abstract:
1. A fuel cell system comprising: a fuel cell body; an air supply system supplying air to the fuel cell body; an air flow rate control system controlling a flow rate of the air and being arranged in a flow path through which the air is supplied, an opening degree of the flow path being variable to control a flow rate of the air; and a droplet removal structure that includes the air flow rate control system with a controller and a control valve for removing droplets adhered to the air flow rate control system, the controller being configured to control an opening degree of the control valve to be at a droplet removal opening degree, smaller than a fully opening degree, to increase a speed with which the air flows for a variable time interval determined in dependence upon at least one of detected conditions of a temperature of an atmospheric air outside the fuel cell system and a humidity inside the fuel cell system, when a given condition is established at a stop of or after the stop of the fuel cell system, and to allow the air to flow at the droplet removal opening degree to cause the droplets adhered to the air flow rate control system to be blown off.