(WO9804013-A1)      The vehicle has a cooling system which may be a secondary system. A gaseous cooling medium passes through the cooling system. The fuel cells can be arranged so that the cooling medium is passed around the system wholly or partially by the ram pressure of the wind due to the vehicle's motion.    A further source of pressure e.g. a fan, can be used in addition to the ram pressure to force the coolant through the system. A liquid primary coolant can be cooled by a secondary coolant and regenerated after heating in a primary cooling system.    ADVANTAGE -   Enables mobile fuel cell power supply with cooling system to be fitted with less additional wt. than customary for this technology, whilst providing comparable power.    (DE19629084-C2)      The vehicle has a cooling system which may be a secondary system. A gaseous cooling medium passes through the cooling system. The fuel cells can be arranged so that the cooling medium is passed around the system wholly or partially by the ram pressure of the wind due to the vehicle's motion.    A further source of pressure e.g. a fan, can be used in addition to the ram pressure to force the coolant through the system. A liquid primary coolant can be cooled by a secondary coolant and regenerated after heating in a primary cooling system.    ADVANTAGE -   Enables mobile fuel cell power supply with cooling system to be fitted with less additional wt. than customary for this technology, whilst providing comparable power.    (EP913010-A1)      The vehicle has a cooling system which may be a secondary system. A gaseous cooling medium passes through the cooling system. The fuel cells can be arranged so that the cooling medium is passed around the system wholly or partially by the ram pressure of the wind due to the vehicle's motion.    A further source of pressure e.g. a fan, can be used in addition to the ram pressure to force the coolant through the system. A liquid primary coolant can be cooled by a secondary coolant and regenerated after heating in a primary cooling system.    ADVANTAGE -   Enables mobile fuel cell power supply with cooling system to be fitted with less additional wt. than customary for this technology, whilst providing comparable power.    (JP2000514745-W)      The vehicle has a cooling system which may be a secondary system. A gaseous cooling medium passes through the cooling system. The fuel cells can be arranged so that the cooling medium is passed around the system wholly or partially by the ram pressure of the wind due to the vehicle's motion.    A further source of pressure e.g. a fan, can be used in addition to the ram pressure to force the coolant through the system. A liquid primary coolant can be cooled by a secondary coolant and regenerated after heating in a primary cooling system.    ADVANTAGE -   Enables mobile fuel cell power supply with cooling system to be fitted with less additional wt. than customary for this technology, whilst providing comparable power.