Patent ID: 6341649
Filing Date: 2002-01-29
Classification: F28D,F28F,Y10S

Abstract:
A plate oil cooler comprising:a plurality of pairs of plates secured together along their perimeter, said plates spaced from each other, thereby defining an oil flow path, said plates including embossed regions formed thereon for providing inlet and outlet ports for oil, top and bottom reinforcement plates positioned on a top and bottom of said plurality of pairs of plates; and an internal center positioned between said plates in thermal contact with said plates and within said oil flow path for transferring heat from the oil within the oil flow path to said plates; an external center positioned between each of said plurality of pairs and in thermal contact with said plates for increasing the heat transfer from said plates to a coolant; said external center comprising a corrugated aluminum sheet having a plurality of fins having first and second planar surfaces joined by a bend, said fins formed thereon such that the flow of coolant is perpendicular to the flow of oil; said external center covering the entire surface of said plates and including holes formed therein to correspond with said embossed regions for providing a uniform internal load on said plates to ensure a bond between said internal center and said plates during a brazing operation.