Denso Corporation

Haruhiko Kato

Kunio Okamoto

Kiyoshi Kawaguchi

Toshiyuki Kawai

Tomonori Imamura

Tadayoshi Terao

Masanori Uehara

Naoto Hotta

A fuel cell system includes a heat-generation amount detection device for detecting a heat generation amount in a fuel cell, and an evaporation amount controller for controlling an evaporation amount of water in the fuel cell based on the detected heat generation amount. The heat generation amount is detected based on an output electric power of the fuel cell, an output current thereof or a temperature thereof. The evaporation amount of water in the fuel cell is controlled by adjusting at least one humidification amount of hydrogen and oxygen to be supplied to the fuel cell, or by adjusting at least one flow amount of hydrogen and oxygen to be supplied to the fuel cell.

Water control for a fuel cell system

A fuel cell system includes a fuel cell (FC stack), an inflow passage valve provided in a hydrogen inflow passage through which hydrogen is supplied to the FC stack, and a discharge passage valve provided in a hydrogen discharge passage through which hydrogen containing gas is discharged from the FC stack as exhaust gas. In the fuel cell, hydrogen is supplied to the FC stack intermittently in accordance with an amount of hydrogen consumed in the FC stack, by controlling opening and closing of the inflow passage valve and the hydrogen discharge valve.

Fuel cell system including fuel cell for generating electric energy by chemical reaction between hydrogen and oxygen

Growing community of inventors

Anjo, Japan

Haruhiko Kato