Abstract: A heat exchanger is provided with a parallel array of heat exchange tubes and mounting plate assemblies on opposed ends of the tubes for achieving communication from one tube to the next. The mounting plate assembly includes a fitting plate stamped to define short discontinuous channels. A seal plate is registered with the fitting plate and includes apertures, such that a pair of apertures register with each channel. The heat exchange tubes extend through the apertures of the seal plate to provide communication with a channel formed in the fitting plate. A sealant surrounds portions of the tubes adjacent the apertures in the seal plate.

Abstract: A heat exchanger is provided with a parallel array of heat exchange tubes and mounting plate assemblies on opposed ends of the tubes for achieving communication from one tube to the next. The mounting plate assembly includes an outer fitting plate stamped to define short discontinuous channels. An inner fitting plate is registered with the outer fitting plate and includes apertures, such that a pair of apertures register with each channel. A seal plate is registered with the inner fitting plate and further includes apertures registered with the apertures in the inner fitting plate. The heat exchange tubes can be inserted through the registered apertures of the seal plate and the inner fitting plate to provide communication with a channel formed in the outer fitting plate. A sealant is then injected between the inner fitting plate and the seal plate for sealing the interface between the tubes and the mounting plate assembly.