Patent ID: 7213640
Filing Date: 2007-05-08
Classification: F28D,F28F,H05K

Abstract:
1. A heat exchanger assembly comprising: a tank having a wall having an inner surface and an outer surface and defining an aperture therebetween; a fitting having a first end and a flange spaced apart from the first end by a section that extends through the aperture, said flange abutting the outer surface of the wall, and said first end being disposed within the tank adjacent the inner surface of the wall; said fitting having an internal tunnel extending along an axis thereto from said first end; and a step of material disposed in said tunnel at said first end and axially spaced apart from the flange, whereby said internal tunnel has a first diameter at said first end adjacent the step of material and a second diameter adjacent the flange greater than the first diameter; at least a portion of said step of material being radially and longitudinally displaced relative to said axis into contact with said wall to prevent rotational movement of said fitting in said aperture.