Method for fabricating flattened tube finned heat exchanger

A method is disclosed for assembling a flattened tube multiple tube bank heat exchanger that includes a first tube bank and a second tube bank, each bank including a plurality tube segments extending longitudinally in spaced parallel relationship. A spacer clip is installed on a longitudinally extending edge of each heat exchange tube segment arrayed in a first layer of tube segments. A plurality of heat exchange tube segments are arrayed in a second layer in engagement with the spacer clips installed on the tube segments of the first layer.

METHOD FOR FABRICATING FLATTENED TUBE FINNED HEAT EXCHANGER

A method is disclosed for assembling a flattened tube multiple tube bank heat exchanger that includes a first tube bank and a second tube bank, each bank including a plurality tube segments extending longitudinally in spaced parallel relationship. A spacer clip is installed on a longitudinally extending edge of each heat exchange tube segment arrayed in a first layer of tube segments. A plurality of heat exchange tube segments are arrayed in a second layer in engagement with the spacer clips installed on the tube segments of the first layer. 1. A method for assembling a flattened tube heat exchanger having a first tube bank and a second tube bank , the method comprising:arraying a plurality of flattened heat exchange tube segments in parallel spaced relationship in a first layer;installing at least one spacer clip on a longitudinally extending edge of each heat exchange tube segment of the plurality of flattened heat exchange tube segments in the first layer; andarraying a plurality of flattened heat exchange segments in parallel spaced relationship in a second layer and disposing each heat exchange tube segment in the second layer in alignment with a respective one of the heat exchange tube segments in the first layer and in engagement with the at least one spacer clip installed on the respective one of the heat exchange tube segments in the first layer.2. The method as set forth in wherein said spacer clip has a body having a first edge having an inwardly extending groove having a depth and a width claim 1 , and installing at least one spacer clip comprises receiving the longitudinally extending edge of a heat exchange tube exchange tube segment in the first layer into said groove in the first edge.3. The method as set forth in wherein disposing each heat exchange tube segment in the second layer in engagement with the at least one spacer clip comprises disposing each heat exchange tube segment in the second layer in abutting relationship with a second edge of the ...

Flattened Tube Finned Heat Exchanger And Fabrication Method

A multiple tube bank heat exchanger includes a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. A continuous folded fin extends between the first and second flattened tube segments of both of said first tube bank and said second tube bank. 1. A heat exchanger for transferring heat between a first fluid and a second fluid comprising:at least a first heat exchanger slab and a second heat exchanger slab;the first heat exchanger slab including a first manifold, a second manifold spaced from the first manifold, and a first tube bank extending between the first manifold and the second manifold and including a plurality of tube segments extending longitudinally in spaced relationship, each tube segment defining an internal flow passage for the first fluid;the second heat exchanger slab including a first manifold, a second manifold spaced from the first manifold, and a second tube bank extending between the first manifold and the second manifold and including a plurality of tube segments extending longitudinally in spaced relationship, each tube segment defining an internal flow passage for the first fluid, said second heat exchanger slab being disposed in generally parallel alignment with said first heat exchanger slab, the first manifold of said first heat exchanger slab and the first manifold of said second heat exchanger slab juxtaposed in spaced relationship at a first side of said heat exchanger, and the second manifold of said second heat exchanger slab and the second manifold of said first heat exchanger slab at a second side of said heat exchanger; anda plurality of folded fins ...

FLATTENED TUBE FINNED HEAT EXCHANGER AND FABRICATION METHOD

A multiple tube bank heat exchanger includes a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. A continuous folded fin extends between the first and second flattened tube segments of both of said first tube bank and said second tube bank. 1. A heat exchanger for transferring heat between a fluid to be cooled and a cooling fluid comprising:a first heat exchanger slab including a first manifold, a second manifold spaced from the first manifold, and a first tube bank extending between the first manifold and the second manifold and including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship and defining a flow passage for the fluid to be cooled; anda second heat exchanger slab including a first manifold, a second manifold spaced from the first manifold, and a second tube bank extending between the first manifold and the second manifold and including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship and defining a flow passage for the fluid to be cooled, said second heat exchanger slab disposed downstream of said first heat exchanger slab, the second manifold of said second heat exchanger slab being connected in fluid flow communication with the second manifold of said first heat exchanger slab; the first manifold of said second heat exchanger slab defines an inlet header for receiving the fluid to be cooled and distributing the fluid to be cooled amongst the flattened tube segments of the second tube bank;', 'the second manifold of said second heat exchanger slab defines an intermediate header for ...

Tube structures for heat exchanger

A heat exchanger includes a plurality of fins and a plurality of tubes passing a fluid therethrough, extending through the plurality of fins and radially expanded into an interference fit therewith. At least one tube of the plurality of tubes includes an outer diameter, an inner diameter, and a plurality of ridges extending from the inner diameter inwardly into an interior of the tube. A tube internal surface area per unit of length of the tube multiplied by the ratio of the outer diameter and tube wall thickness is equal to or greater than about 30.0.

Flattened tube finned heat exchanger and fabrication method

Tube structures for heat exchanger

A heat exchanger includes a plurality of fins and a plurality of tubes passing a fluid therethrough, extending through the plurality of fins and radially expanded into an interference fit therewith. At least one tube of the plurality of tubes includes an outer diameter, an inner diameter, and a plurality of ridges extending from the inner diameter inwardly into an interior of the tube. A tube internal surface area per unit of length of the tube multiplied by the ratio of the outer diameter and tube wall thickness is equal to or greater than about 30.0.

Flattened tube finned heat exchanger and fabrication method

A multiple tube bank heat exchanger includes a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. A continuous folded fin extends between the first and second flattened tube segments of both of said first tube bank and said second tube bank.

Flattened tube finned heat exchanger and fabrication method

A multiple tube bank heat exchanger includes a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. A continuous folded fin extends between the first and second flattened tube segments of both of said first tube bank and said second tube bank.