Apparatuses and methods associated with heat exchanger puck design are disclosed herein. In embodiments, a heat exchanger puck may include a first plate with a cavity that extends into the first plate from a side of the first plate and a second plate. The second plate may be coupled to the side of the first plate, with the cavity located between the first plate and the second plate. The heat exchanger puck may further include a tube of a liquid coolant system located, at least partially, within the cavity, the tube formed to fit the cavity created by the first plate and the second plate. Other embodiments may be described and/or claimed.

The present invention provides manufacturing method of a heat exchanger that, even if the position of a tube opening portion of a tube of a heat exchanger for which tube expansion is conducted, varies depending on the type of a heat exchanger, a mechanism adjusting the stop position of a flare plate as well as any complicated adjusting work therefor are not necessary and a heat exchanger in which flares in the same shape and in constant certain depth are formed at an opening portion of a tube of various kinds of heat exchangers having different total lengths in the longitudinal direction, and a device for a heat exchanger manufacturing method, and an air conditioner and/or outdoor unit thereof equipped with a heat exchanger manufactured using said manufacturing method.

The present invention provides manufacturing method of a heat exchanger that, even if the position of a tube opening portion of a tube of a heat exchanger for which tube expansion is conducted, varies depending on the type of a heat exchanger, a mechanism adjusting the stop position of a flare plate as well as any complicated adjusting work therefor are not necessary and a heat exchanger in which flares in the same shape and in constant certain depth are formed at an opening portion of a tube of various kinds of heat exchangers having different total lengths in the longitudinal direction, and a device for a heat exchanger manufacturing method, and an air conditioner and/or outdoor unit thereof equipped with a heat exchanger manufactured using said manufacturing method.

A vertical bundle air-cooled heat exchanger. In one embodiment, the invention can be a vertical bundle air-cooled condenser comprising: at least one tube bundle assembly comprising: a tube bundle comprising a plurality of finned tubes arranged in a substantially vertical and side-by-side orientation, each of the plurality of finned tubes comprising a cavity; a top header pipe comprising an inlet header cavity operably coupled to a source of steam; a bottom header pipe comprising an outlet header cavity for collecting condensate; top ends of the plurality of finned tubes coupled to the top header pipe and the bottom ends of the plurality of finned tubes coupled to the bottom header pipe; and a shell having an open top end and open bottom end, the at least one tube bundle assembly positioned within the shell.

A heat exchanger includes fins that are arranged in a direction orthogonal to a direction in which air flows and a heat transfer pipe that extends through the fins and that is bonded and fixed to the fins when the heat transfer pipe is radially expanded by a pipe-expanding method. Tall projections and short projections are provided on an inner surface of the heat transfer pipe. The tall projections are arranged in a circumferential direction and extend in an axial direction of the heat transfer pipe. The short projections are arranged between the tall projections and extend in the axial direction. Opposing side surfaces of the tall and short projections after the expansion of the heat transfer pipe are so inclined that when extensions are drawn from the side surfaces, the extensions cross each other in an inner region of the heat transfer pipe.

A heat exchanger includes a plurality of fins spaced apart from each other such that gas flows therebetween, and a plurality of heat transfer tubes extending through the plurality of fins and joined to the plurality of fins by tube expansion. The heat transfer tubes are arranged in five or more columns along a flow direction of the gas and staggered in a row direction intersecting the flow direction of the gas. Each of the plurality of fins is flat and plate-shaped and continuously extends between the heat transfer tubes in the flow direction of the gas. The plurality of heat transfer tubes satisfy relationships of 1.055DDa1.068D and 1.56DaL2.58Da, where D is an unexpanded outside diameter of the heat transfer tubes, Da is an expanded outside diameter thereof, and L is a distance between centers of adjacent two heat transfer tubes.

A method is disclosed for producing a heat exchanger, in particular for a motor vehicle, a method whereby fluid circulation tubes (3) are inserted into through holes in heat exchange fins (4) and the fluid circulation tubes (3) are subjected to expansion in such a way as to expand a contour (22) of the tubes (3) to ensure contact with the fins (4) at the through holes and, additionally, for at least one of the tubes (3), to deform a concave portion (24) of the contour (22) of the tube or tubes (3), in such a way as to correspondingly deform the through holes. A device for implementing the method and an exchanger obtained by the method are also disclosed.

A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fm structures defining a plurality of hot gas flow channels. Each of the plurality of hot gas flow channels extends in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fin structures defining a plurality of hot gas flow channels extending in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

The invention relates to a method for producing a heat exchanger, wherein at least one microchannel, placed within a plate having an upper face and a lower face and precisely arranged between said upper face and lower face is obtained by making a groove on the upper face of the plate, said groove extending between an open extremity facing on the upper face and a blind extremity placed inside the plate, and machining the blind extremity of the groove to create a volume of a suitable size to house a tube inserted in the microchannel, said tube being fixed inside the microchannel by generating an interference between the tube and the microchannel. The invention relates also to a heat exchanger obtained by such method.