FUEL CELL SYSTEM

• Main Authors: NENDAI SHINJI, YABUTANI MOTOHIKO
• Format: Patent
• Language: English
• Published: 26.07.2012
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A fuel cell system includes an evaporating portion, a reforming portion forming an anode fluid, a fuel cell generating an electric power, a tank, a water supply passage connecting the tank and the evaporating portion and allowing water in the tank to be supplied to the evaporating portion, a water supply source provided at the water supply passage to transmit the water in the tank to the evaporating portion, a stepping motor driving the water supply source, and a control portion driving the stepping motor to transmit the water in the tank to the evaporating portion. The control portion performs a harmful vibration restraining process to change a resonance frequency of the stepping motor by changing the number of steps per rotation of the stepping motor based on a volume of the water transmitted to the evaporating portion per time unit.