Patent ID: 8240358

Claim:
A heat exchange apparatus comprising: a first housing section; a second housing section; a first cross-flow fluid passageway disposed at least partially within the first housing section and defined by an internal surface of the first housing section and including a first inlet and a first outlet; a second cross-flow fluid passageway disposed at least partially within the second housing section and including a second inlet and a second outlet; an interior fluid passageway defined by at least one tube disposed at least partially within the first housing section and at least partially within the second housing section, extending at least partially through the first passageway and at least partially through the second passageway, and including at least a third inlet and a third outlet; and means for reducing transmission of shear stress from the first housing section to the second housing section, the means for reducing transmission of shear stress being disposed between the first housing section and the second housing section, wherein the at least one tube passes through the means for reducing transmission of shear stress, wherein the means for reducing transmission of shear stress includes a vent fluidly connecting an area internal to the means for reducing transmission of shear stress with an area external to the means for reducing transmission of shear stress.