Abstract: An air conditioner for vehicle includes a cooler cooled in a cooling circuit which includes a compressor, a heat exchanger located in the vicinity of the cooler, a thermal storage tank connected with the heat exchanger via a heat transfer passage, a pump provided in said heat transfer passage, a first temperature sensor for detecting the temperature TO in close proximity to of the cooler, a second temperature sensor for detecting the temperature TC of the storage tank, and a third sensor for detecting the temperature TR in the car interior, and a heat transfer type partition wall can be integrally provided between a cooling flowing passage of the cooler and a fluid passage of the heat exchanger. The air conditioner for the vehicle serves to cause said pump to be operated to permit cooling energy to be stored when TC is greater then TO and TR is lower than a set value, and to cause said pump to be operated to permit said cooling energy to be radiated when TR is higher than the set value.

Abstract: A heat exchanger adapted for use as a hot water radiator for a car heater, or the like, in which a plurality of tubes and a plurality of fins secured thereon extend between two fluid tanks. The fluid tanks each comprise an inner and an outer tank element, both made of synthetic resin. The inner tank element is joined via gaskets with the end portions of the tubes extending therethrough, by means of tube-expansion working, while the outer tank element is united with the inner tank element along corresponding opposed peripheral edges thereof arranged in abutting relation. A pair of partition walls are provided in opposed relation between the inner and outer tank elements, which are joined together in an abutting manner directly or via part of the gasket, to provide a fluid tight partition between an inlet chamber and an outlet chamber defined by the partition walls and the tank elements.