PURPOSE: To provide a sufficient agitation of heat exchanging medium and enable an efficiency of heat exchanging operation to be improved by a method whrein a longitudinal cylindrical header having communication holes is arranged between both ends of the adjoining tube elements and a heat exchanging medium accumulation chamber is arranged between both ends.
CONSTITUTION: When a heat exchanger is used as a car cooler evaporator, coolant is guided from an inlet pipe 6 into the tank chamber at one end of the lower tank T2, ascended in a group of the heat exchanging medium passages 1a of a plurality of tube elements 1 at the end part of the core, thereafter reversed in the upper tank T1 and descended down in the group of the next stage of heat exchanging passages and further reversed again in the lower tank T2, lifted up in the group of the next passages and then fed out of the unit from the outlet pipe 7. The coolant enters the accumulation chamber 5 in the header member 4 when reversed, and sufficiently agitated and supplied to the next stage of group of the heat exchanging medium passage, so that an over-heated gas component of the coolant and wet gas component are not partially balanced in each of the tube elements 1 and thus an entire superior heat exchanging operation can be realized and an efficiency of heat exchaning operation can be improved.
SUZUKI KATSUHISA
HOSHINO RYOICHI
SASAKI HIRONAKA
Next Patent: COMPOSITE MATERIAL FOR VEHICLES