Patent ID: 7845392
Filing Date: 2010-12-07
Classification: F28D

Abstract:
1. A heat exchanger assembly for cooling three cooling fluids, the heat exchanger comprising: a vehicle air conditioning unit; a vehicle fuel cell; a vehicle drive motor; a first heat exchanger comprising a first heat radiating area arranged to receive a flow of a first cooling fluid flowing through the vehicle air conditioning unit and to radiate heat therefrom; and a second heat exchanger comprising a second heat radiating area arranged to receive a flow of a second cooling fluid flowing through the vehicle fuel cell and to radiate heat therefrom, and a third heat radiating area arranged to receive a flow of a third cooling fluid flowing through the vehicle drive motor and to radiate heat therefrom, the second and third cooling fluids being disposed parallel to the respective second and third heat radiating areas, and the second and third heat radiating areas being disposed rearward of the first heat radiating area, a difference in temperature between the first cooling fluid entering the first heat radiating area and exiting the first heat radiating area is greater than a difference in temperature between the second cooling fluid entering the second heat radiating area and exiting the second heat radiating area and greater than a difference in temperature between the third cooling fluid entering the third heat radiating area and exiting the third heat radiating area, and a temperature of the second cooling fluid flowing through the second heat radiating area is higher than a temperature of the third cooling fluid flowing through the third heat radiating area, and the second heat radiating area being disposed on an upstream side of a flow direction of the first cooling fluid in the first heat radiating area, and the third heat radiating area being located on a downstream side of the flow direction of the first cooling fluid in the first heat radiating area.