Oil cooler mounting structure and oil cooler mounting method

摘要

An oil cooler mounting structure includes: a heat exchanger tank main body that is made of aluminum and has an oil cooler mounting hole in a wall surface thereof; an oil cooler that is made of aluminum, has an insertion hole for an oil introducing/discharging pipe formed in a seat portion, and is mounted inside the heat exchanger tank with a plurality of projecting pieces erected around the circumference of the insertion hole; a patch that is made of an aluminum-containing brazing filler metal and is arranged on the outer circumference of the projecting pieces of the oil cooler; and the oil introducing/discharging pipe that is inserted into the insertion hole formed in the seat portion of the oil cooler. In such oil cooler mounting structure, the oil cooler is mounted onto the heat exchanger tank main body by having the plurality of projecting pieces of the seat portion projected outside through the oil cooler mounting hole, by setting the patch through the outer circumference of the plurality of projecting pieces of the seat portion, and by bending the plurality of projecting pieces toward the patch.