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US 2017/0108279 A1Published application
Heat exchanger with multiple flow tubes for fluid circulation
OwnerFrederick Mark WEBBinventor
Life of this patent
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Abstract
A heat exchanger having a primary flow path arranged to contain a first heat exchanging medium. A secondary flow path arranged to contain a secondary heat exchanging medium, wherein the primary flow path surrounds the secondary flow path for exchanging heat between the two paths.
Claims6
A method of forming a heat exchanger tube, comprising:
- by way of an extrusion process, forming a length of micro-channel tube comprising a plurality of flow channels defined therein and which are each operable to carry a first heat exchanging medium, the extrusion process further resulting in a plurality of outwardly extending projections being formed on an outer upper face of the micro-channel tube and wherein the extrusion process also results in outer lower and side faces of the micro-channel tube having a substantially planar profile;
- and
- helically winding the length of micro-channel tube such that, in use, the one or more projections on the upper face are operable as fins for allowing a second heat exchanging medium passing there over to exchange heat with the first heat exchanging medium passing through the plurality of helically wound flow channels.
A heat exchanger tube formed from a method comprising:
- by way of an extrusion process, forming a length of micro-channel tube comprising a plurality of flow channels defined therein and which are each operable to carry a first heat exchanging medium, the extrusion process further resulting in a plurality of outwardly extending projections being formed on an upper face of the micro-channel tube and wherein the extrusion process also results in outer lower and side faces of the micro-channel having a planar profile;
- and
- helically winding the length of micro-channel tube such that, in use, the one or more projections are operable as fins for allowing a second heat exchanging medium passing there over to exchange heat with the first heat exchanging medium passing through the plurality of helically wound flow channels.
A heat exchanger tube formed from a method comprising:
- by way of an extrusion process, forming a length of micro-channel tube comprising a plurality of flow channels defined therein and which are each operable to carry a first heat exchanging medium, the extrusion process further resulting in a plurality of outwardly extending projections being formed solely on an upper face of the micro-channel tube;
- and
- helically winding the length of micro-channel tube such that, in use, the one or more projections are operable as fins for allowing a second heat exchanging medium passing there over to exchange heat with the first heat exchanging medium passing through the plurality of helically wound flow channels.
Dependencies are inferred from the claim text.