Patent ID: 7040430

Claim:
A cogeneration vehicle system using a fuel cell car, said cogeneration vehicle system comprising: a vehicle including a fuel cell for generating electric power by using hydrogen as a fuel and a hydrogen supply section for storing the hydrogen fuel; and a mobile unit including a space and equipment to be used by a user, the mobile unit being jointed to the vehicle so as to be capable of traveling while being trailed by and exchanging energy with the vehicle, wherein the mobile unit further includes: a heat storing section for recovering heat produced through the power generation by the fuel cell from the vehicle, heating predetermined water with the recovered heat, and storing the heated predetermined water in a water tank; and an electricity storing section for recovering, from the vehicle, excess electric power which is generated through the power generation by the fuel cell but not needed for running the vehicle, and storing the excess electric power in a storage battery. wherein the energy which is generated by the fuel cell but not used for running the vehicle is stored in the mobile unit, and used by the equipment in the mobile unit, wherein the heat storing section recovers water produced through the power generation by the fuel cell from the vehicle, and uses the water as the predetermined water, and wherein the vehicle further includes a filter for removing dust and hazardous matter, and supplies oxygen extracted from air which has been passed through the filter to the fuel cell.