Patent ID: 11938782
Assignee: DANA CANADA CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC B  H  F | IPC B  F

Claim 6:
7. The heat exchanger of claim 1, wherein the second plate comprises a shaped plate having a generally flat, planar base surrounded on all sides by a raised peripheral sidewall extending from the base to a planar flange defining a first sealing surface along which the raised peripheral sidewall is sealingly secured to the opposing one of the first plate and the second plate;
wherein the second plate has a plurality of protrusions formed in the flat, planar base thereof, the protrusions having a height which is the same as a height of the planar flange, each said protrusion having a second sealing surface which is co-planar with the first sealing surface of the planar flange;
wherein the second sealing surfaces of the protrusions are in thermal contact with the inner surface of the first plate; and
wherein the protrusions comprise ribs and/or dimples.