Patent ID: 9543598
Date: 2017-01-10
CPC Classifications: B60L,B62J,B62K,H01M,Y02E,Y02T

Claim:
1. A fuel cell-powered motorcycle, comprising: a vehicle body; an electric motor for driving a driving wheel, an air-cooled fuel cell for supplying electric power to the electric motor and a hydrogen tank for storing a fuel gas supplied to the fuel cell, respectively housed in the vehicle body, the fuel cell having an exhaust gas face and including an exhaust port after the exhaust gas face; a suction fan for forcively supplying air as a reactant and a coolant to the fuel cell and discharging exhaust gas from the fuel cell, the suction fan being disposed between the exhaust gas face and the exhaust port, respectively, of the fuel cell; and an exhaust duct for receiving the exhaust gas supplied via the suction fan and discharging the exhaust gas from the fuel cell out of a rear end of the vehicle body, the exhaust duct having an inlet communicatively connected to the exhaust port of the fuel cell; wherein the motorcycle further includes an in-body hydrogen sensor for detecting hydrogen leaked out of the hydrogen tank, the fuel cell, and a pipe connecting between, and valves attached to, the hydrogen tank and the fuel cell in a region in the vehicle body and outside the exhaust duct, and an in-duct hydrogen sensor for detecting hydrogen in the exhaust duct; said in-duct hydrogen sensor is disposed at a relatively high position in the exhaust duct where the exhaust gas from the fuel cell has been fully mixed to allow the detection of a hydrogen concentration therein; and said in-duct hydrogen sensor is disposed on an inner ceiling surface of the exhaust duct at a position which is higher than an exit of the fuel cell and close to an exit of the exhaust duct.