[Problem] To provide a water heating apparatus which has a inverse combustion type burner installed within a case for a heat exchanger so as to cause heat to be transferred from an outer peripheral flange of the burner to the heat exchanger case. [Solution] This water heating apparatus is provided with: a fan for supplying combustion air; a chamber case which is connected to the fan and which has set therein a chamber where an air-fuel mixture is formed; a inverse combustion type burner for combusting the air-fuel mixture supplied from the chamber; a heat exchanger in which combustion gas generated by the burner is introduced into a case where water is heated; and sealing member which is installed between a peripheral flange of the chamber case and a peripheral flange of the case, wherein the burner is set inside the case, and an outer peripheral flange of the burner is anchored to an inner wall surface of the case.

The invention relates to a method for manufacturing a heat exchanger of the brazed plate and fin type, including: stacking, with spacing, a set of plates parallel to each other and in a longitudinal direction so as to define, between said plates, a plurality of passages adapted for the flow, in the longitudinal direction, of a first fluid to be brought into a heat exchange relationship with at least one second fluid, said plates being demarcated by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction.

The invention relates to a method for manufacturing a heat exchanger including stacking a set of plates parallel to one another and to a longitudinal direction so as to define a plurality of passages suitable for the flow in the longitudinal direction of a first fluid to be brought into a heat-exchange relationship with at least a second fluid, said plates being delimited by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction, and forming at least one of the plates by superposing at least a first flat product and a second flat product on top of one another, having at least one groove that extends parallel to the plates and leads towards the outside of the stack through at least one opening in a lateral or longitudinal edge.

The invention relates to a method for manufacturing a brazed plate type heat exchanger comprising the following steps: a) stacking, with a clearance, a plurality of plates parallel to each other so as to define, between said plates, a plurality of passages suitable for the flow of at least one fluid, said passages being delimited by peripheral edges and at least one passage comprising at least one zone to be supported emerging towards the outside of the passage through at least one opening of a peripheral edge; b) arranging at least one support member in the zone to be supported; c) brazing the stack of plates comprising the support member; and d) removing the support member from the zone to be supported through the opening. According to the invention, the support member is deformable and, in step d), a traction force is exerted on the support member so as to cause a deformation in at least one part of the support member and a translation movement of the support member towards the outside of the passage.

A strip intended for the manufacture of brazed heat exchangers, having a core made of an alloy with the composition (weight %):

Si: 0.10-0.30%, preferably 0.15-0.25%
Fe<0.25%, preferably 0.1-0.2%
Cu: 0.85-1.1%, preferably 0.9-1.0%
Mn: 1.2-1.7%, preferably 1.2-1.4%
Mg: 0.1-0.3%, preferably 0.1-0.21%
Zn<0.1%
Ti 0.05-0.20%, preferably 0.06-0.15%, more preferably 0.06-0.1%
optionally up to 0.15% of Bi and/or Y
other elements <0.05% each and <0.15% in total,
remainder aluminium.

In an application method of a solid brazing material, while being rotated, the solid brazing material is brought into contact with an aluminum plate material, thereby applying the solid brazing material to the aluminum plate material.

A brazing, monolayer, aluminum-alloy material has a chemical composition composed of Si: 1.5 mass % or more and 3.5 mass % or less, Fe: 0.05 mass % or more and 2.00 mass % or less, Mn: 0.1 mass % or more and 2.0 mass % or less, Mg: 0.005 mass % or more and 0.500 mass % or less, and Bi: 0.010 mass % or more and 0.500 mass % or less, the remainder being Al and unavoidable impurities; and has a metallographic structure in which Mg—Bi-series compounds are dispersed in an Al matrix. The surface-area ratio of the above-mentioned Mg—Bi-series compounds in any arbitrary cross section is 0.05% or more.

Disclosed is a microchannel heat exchanger comprising a primary core including a first header and a second header and a secondary core including a first auxiliary header and a second auxiliary header, further comprising a first header interconnect extending between the first header and the first auxiliary header and having a first interconnect fluid passage extending therethrough; and a second header interconnect extending between the second auxiliary header and the second header and having a second interconnect fluid passage extending therethrough.

A heating, ventilation, and/or air conditioning (HVAC) packaged unit includes a first refrigerant circuit component configured to change a temperature or a pressure of a refrigerant flowing through the first refrigerant circuit component and a second refrigerant circuit component configured to change a temperature or a pressure of the refrigerant flowing through the second refrigerant circuit component. The first and the second refrigerant circuit components are within a common refrigerant circuit that is disposed within a common support structure. The HVAC packaged unit also includes an interconnection conduit having a length formed from aluminum, a first end segment coupled to a first end of the length, and a second end segment coupled to a second end of the length. The first end segment and the second end segment are each formed from copper, and the interconnection conduit extends between the first refrigerant circuit component and the second refrigerant circuit component.

The invention relates to a method for manufacturing a heat exchanger including stacking a set of plates parallel to one another and to a longitudinal direction so as to define a plurality of passages suitable for the flow in the longitudinal direction of a first fluid to be brought into a heat-exchange relationship with at least a second fluid, said plates being delimited by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction, and forming at least one of the plates by superposing at least a first flat product and a second flat product on top of one another, having at least one groove that extends parallel to the plates and leads towards the outside of the stack through at least one opening in a lateral or longitudinal edge.