Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A heat exchanger with increased heat transfer capability includes first and second end plates, tubes extending between the first and second end plates and fins disposed between the tubes. The heat exchanger is disposable within and differs in shape from a space defined between first and second walls such that corners of the first end plate abut the first wall and a point of the second end plate abuts the second wall, the first wall diverges from the corners of the first end plate to define a first open region and the second wall diverges from the point of the second end plate to define second open regions. At least one of the first end plate and the second end plates includes enhancements fluidly communicative with the at least one corresponding one of the first open region and the second open regions.

Abstract: An outlet manifold is provided and includes an outlet portion having first and second sides and an inlet portion to which the outlet portion is fluidly coupled. The inlet portion has first and second sides corresponding to the first and second sides of the outlet portion. Each of the first and second sides of the inlet portion includes one or more tubular members connectable with corresponding tube joints and a mixing chamber fluidly interposed between each of the one or more tubular members and the outlet portion.

Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A heat exchanger with increased heat transfer capability is provided. The heat exchanger includes first and second end plates, tubes extending between the first and second end plates and fins disposed between the tubes. The heat exchanger is disposable within and differs in shape from a space defined between first and second walls such that end corners of the first end plate abut the first wall and a point of the second end plate abuts the second wall, the first wall diverges from the end corners of the first end plate to define a first open region and the second wall diverges from the point of the second end plate to define second open regions. At least one of the first end plate and the second end plates includes enhancements fluidly communicative with the at least one corresponding one of the first open region and the second open regions.

Abstract: An outlet manifold is provided and includes an outlet portion having first and second sides and an inlet portion to which the outlet portion is fluidly coupled. The inlet portion has first and second sides corresponding to the first and second sides of the outlet portion. Each of the first and second sides of the inlet portion includes one or more tubular members connectable with corresponding tube joints and a mixing chamber fluidly interposed between each of the one or more tubular members and the outlet portion.

Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A heat exchanger with increased heat transfer capability includes first and second end plates, tubes extending between the first and second end plates and fins disposed between the tubes. The heat exchanger is disposable within and differs in shape from a space defined between first and second walls such that corners of the first end plate abut the first wall and a point of the second end plate abuts the second wall, the first wall diverges from the corners of the first end plate to define a first open region and the second wall diverges from the point of the second end plate to define second open regions. At least one of the first end plate and the second end plates includes enhancements fluidly communicative with the at least one corresponding one of the first open region and the second open regions.

Abstract: An outlet manifold is provided and includes an outlet portion having first and second sides and an inlet portion to which the outlet portion is fluidly coupled. The inlet portion has first and second sides corresponding to the first and second sides of the outlet portion. Each of the first and second sides of the inlet portion includes one or more tubular members connectable with corresponding tube joints and a mixing chamber fluidly interposed between each of the one or more tubular members and the outlet portion.

Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A heat exchanger assembly includes first and second annular ducts, first and second airflow pathways, and heat exchanger. The first airflow pathway is configured to transport a first airflow and is disposed within the first annular duct. The second annular duct is disposed radially outward from the first annular duct. The second airflow pathway is configured to transport a second airflow and is disposed between the first and second annular ducts. The heat exchanger includes inner and outer portions. The inner portion is disposed radially inward of the first annular duct and is fluidly connected to the first airflow pathway. The outer portion is disposed between the first and second annular ducts and is fluidly connected to the second airflow pathway. The heat exchanger is configured to cool a third airflow with both of the first and second airflows from the first and second airflow pathways.

Abstract: An outlet manifold is provided and includes an outlet portion having first and second sides and an inlet portion to which the outlet portion is fluidly coupled. The inlet portion has first and second sides corresponding to the first and second sides of the outlet portion. Each of the first and second sides of the inlet portion includes one or more tubular members connectable with corresponding tube joints and a mixing chamber fluidly interposed between each of the one or more tubular members and the outlet portion.

Abstract: A heat exchanger with increased heat transfer capability is provided. The heat exchanger includes first and second end plates, tubes extending between the first and second end plates and fins disposed between the tubes. The heat exchanger is disposable within and differs in shape from a space defined between first and second walls such that end corners of the first end plate abut the first wall and a point of the second end plate abuts the second wall, the first wall diverges from the end corners of the first end plate to define a first open region and the second wall diverges from the point of the second end plate to define second open regions. At least one of the first end plate and the second end plates includes enhancements fluidly communicative with the at least one corresponding one of the first open region and the second open regions.

Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

Abstract: A heat exchanger assembly includes first and second annular ducts, first and second airflow pathways, and heat exchanger. The first airflow pathway is configured to transport a first airflow and is disposed within the first annular duct. The second annular duct is disposed radially outward from the first annular duct. The second airflow pathway is configured to transport a second airflow and is disposed between the first and second annular ducts. The heat exchanger includes inner and outer portions. The inner portion is disposed radially inward of the first annular duct and is fluidly connected to the first airflow pathway. The outer portion is disposed between the first and second annular ducts and is fluidly connected to the second airflow pathway. The heat exchanger is configured to cool a third airflow with both of the first and second airflows from the first and second airflow pathways.

Abstract: An end cap configured for use with a recirculation heat exchanger of an aircraft environmental control system includes a body having an inlet section adjacent an inlet end, an outlet section adjacent an outlet end, and a transition section fluidly coupling the inlet section and the outlet section. The inlet section includes a generally rounded portion having a radius of about 0.870 inches (2.21 cm) and at least one flange formed at a side of the rounded portion. An exterior of the flange is positioned at a distance of about 1.012 from an origin of the rounded portion.

Abstract: A heat exchanger assembly includes a manifold having a first side plate, a second side plate disposed opposite the first side plate, a first face plate, a second face plate disposed opposite the first face plate, a base plate, and a plurality of cooling elements. The first face plate and the second face plate each extend between the first side plate, the second side plate, and the base plate. The base plate extends between proximal ends of the first side plate, the second side plate, the first face plate, and the second face plate. The plurality of cooling elements extends between the first face plate and the second face plate.

Abstract: A mount configured for use with a recirculation heat exchanger of an aircraft environmental control is provided including a rectangular base having a length of about 14 inches (35.56 cm) and a width of about 6 inches (15.24 cm). A support extends vertically from the base. A top surface of the support is arranged at a 10° angle below a horizontal plane.

Abstract: A recirculation heat exchanger for use in an environmental control system of an aircraft is provided including a rectangular core having a plurality of alternately stacked first fluid layers and second fluid layers. The rectangular core has a width of about 4.750 inches (12.065 cm), and a length of about 10.6 inches (26.924 cm). A first air header is arranged adjacent a first surface of the core and a second air header is arranged adjacent a second, opposite surface of the core. The first and second air header form a portion of a flow path for a first fluid. A first fluid header is arranged adjacent a third surface and a second fluid header is arranged adjacent a fourth surface of the core. The first and second fluid header form a flow path for the second fluid having a multi-pass configuration.