A method for forming a hybrid heat exchanger is provided. The method includes laser-texturing a metal surface to create a plurality of microstructures and subsequently melt-bonding a plastic component to the plurality of microstructures. During melt-bonding, plastic material penetrates the plurality of microstructures and conforms to the plastic component to the metal surface. After hardening inside the microstructures, the plastic component adheres to the metal surface as a hybrid component. As a result, a fastener or snap connection is not required, and the plastic-metal joint provides a barrier to water, glycol-based fluids, air, and other fluids.

A battery pack comprises one or more cells 30, a flexible duct 50/230 positioned proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50/230 and at least one of the one or more cells 30 and a potting means which at least partially surrounds at least a part of the duct 50/230. A method of manufacturing a battery pack comprises providing one or more cells 30, positioning a flexible duct 50/230 proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50/230 and the at least one of the one or more cells 30, inserting fluid into the duct 50/230 and at least partially surrounding at least a part of the duct 50/230 with a potting means. The potting means may be expandable foam.

The present invention reveals a manufacturing method of a fluororesin bundle having a plurality of fluororesin tube hold by a fixing element as a bundle. The bundle is pre-sealed when the ends of the fluororesin tubes are heated to a status being deformable and mount on the fixing element while being place in a vacuum environment and receive a thermal energy. Immersing the pre-sealed bundle into a heating pool to extend the mounted surface between the fluororesin tubes and the fixing element. Thus, a high quality fluororesin bundle can be done by using the above processes.

A battery pack comprises one or more cells 30, a flexible duct 50 positioned proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50 and at least one of the one or more cells 30 and a potting means which at least partially surrounds at least a part of the duct 50. A method of manufacturing a battery pack comprises providing one or more cells 30, positioning a flexible duct 50 proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 0 and the at least one of the one or more cells 30, inserting fluid into the duct 50 and at least partially surrounding at least a part of the duct 50 with a potting means. The potting means may be expandable foam.

The present invention brings about an increase in the thermal conductivity of an elastomer molded article over a preexisting value. The method according to the present invention is a method that uses at least one of a liquid crystalline polymer and a precursor therefor as a thermal conductivity modifier for an elastomer. That is, the thermal conductivity modifier for an elastomer according to the present invention contains at least one of a liquid crystalline polymer and a precursor therefor. The thermal conductivity modifier may contain only at least one of a liquid crystalline polymer and a precursor therefor or may contain at least one of a liquid crystalline polymer and a precursor therefor along with an additional component. The method and thermal conductivity modifier according to the present invention can bring about an increase in the thermal conductivity of an elastomer molded article over a preexisting value.

A tube bundle-type heat exchanger, to a tube base, and to a method for sealing same. Aspects of the invention relate to a tube base for a tube bundle-type heat exchanger. In particular, the tube base includes a stack of multiple tube base plates with at least one through-opening for receiving a respective tube of the tube bundle-type heat exchanger. The throughopening is sealed by at least one seal ring. Additional aspects relate to a tube bundle-type heat exchanger comprising such a tube base and to a method for sealing a tube bundle-type heat exchanger in particular in the region of the tube base.

The present invention reveals a manufacturing method of a fluororesin bundle having a plurality of fluororesin tube hold by a fixing element as a bundle. The bundle is pre-sealed when the ends of the fluororesin tubes are heated to a status being deformable and mount on the fixing element while being place in a vacuum environment and receive a thermal energy. Immersing the pre-sealed bundle into a heating pool to extend the mounted surface between the fluororesin tubes and the fixing element. Thus, a high quality fluororesin bundle can be done by using the above processes.

A house/building fresh air to air cross flow heat exchanger includes an inner elongate conduit disposed longitudinally within an outer elongate housing thereby defining a first air passageway through the inner conduit and a second air passageway between the inner conduit and the housing. A portion of the inner conduit is constructed with a sorption paper wall/assembly between the passageways. The sorption paper assembly is cylindrical shaped and includes a plurality of longitudinally extending folded pleats thereby increasing the surface area between the exhaust and incoming fresh air passageways. A cylindrical air permeable screen extends longitudinally through and radially supports the sorption paper wall/assembly. The passageways can be connected to a furnace duct using air scoops to thereby forcibly direct air through the passageways. Alternatively, a fan assembly is aligned with the passageways for forcibly directing air therethrough.

A thermoacoustic stack includes an outer wall which is cylindrical and has a length extending between a first end and a second end. An internal wall structure is disposed inside the outer wall. The internal wall structure includes a plurality of spaced adjacent wall surfaces extending along the length of the outer wall to provide open flow passages between the spaced adjacent wall surfaces. A first cross member extends across the outer wall at the first end and is connected to the outer wall and the internal wall structure at the first end.

A house/building fresh air to air cross flow heat exchanger includes an inner elongate conduit disposed longitudinally within an outer elongate housing thereby defining a first air passageway through the inner conduit and a second air passageway between the inner conduit and the housing. A portion of the inner conduit is constructed with a sorption paper wall/assembly between the passageways. The sorption paper assembly is cylindrical shaped and includes a plurality of longitudinally extending folded pleats thereby increasing the surface area between the exhaust and incoming fresh air passageways. A cylindrical air permeable screen extends longitudinally through and radially supports the sorption paper wall/assembly. The passageways can be connected to a furnace duct using air scoops to thereby forcibly direct air through the passageways. Alternatively, a fan assembly is aligned with the passageways for forcibly directing air therethrough.