Patent ID: 7025127

Claim:
A surface cooled heat exchanger including: a substantially planar shim plate with spaced apart integral first and second end walls extending laterally therefrom; a separately formed cover plate having a central wall with integral first and second side walls extending from opposite sides of the central wall; the first and second side walls of the cover plate being sealably joined to respective side edges of the shim plate, the first and second end walls being sealably joined to respective ends of the cover plate, the central wall and shim plate being spaced apart with an internal fluid passage being defined therebetween with inlet and outlet openings provided in flow communication with the fluid passage to allow fluid to flow into, through, and out of the fluid passage; and a support wall with a first side abutting against and secured to the shim plate and an opposite facing exposed second side, wherein the end walls are each formed from portions that have been partially cut from the planar shim plate and folded about a fold line to extend substantially perpendicular to the shim plate.