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US 2026/0194307 A1Published application
Heat exchanger
AssigneeBAE SYSTEMS plc
InventorJeremy Henry Owston
Life of this patent
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AssigneeBAE SYSTEMS plc
InventorJeremy Henry Owston
Estimating the term…
The present invention relates to shell and tube heat exchangers, specifically to compact heat exchangers without the need for a tube sheet. There is provided a shell and tube heat exchanger having an outer shell and a series of heat exchange tubes located therein, said shell comprising a shell side fluid inlet and a shell side fluid outlet for transfer of a first fluid, said tubes, capable in use of permitting flow of a second fluid, said tubes comprising a first end and second end, wherein said tubes are arranged such that they are touching, forming a hypocycloidal enclosure gap, which provides a path for the transfer of said first fluid, wherein said tubes comprise a first region of reduced diameter located proximate to said shell side fluid inlet nozzle and second region of reduced diameter located proximate shell side fluid outlet nozzle, to allow said first fluid to form a flow path through said hypocycloidial enclosure gap.
A shell and tube heat exchanger having an outer shell and a series of heat exchange tubes located therein, said shell comprising a shell side fluid inlet and a shell side fluid outlet for transfer of a first fluid, wherein said tubes are capable in use of permitting flow of a second fluid therethrough, said tubes comprising a first end and second end, wherein said tubes are arranged such that they are touching, forming a hypocycloidal enclosure gap therebetween, said hypocycloidal enclosure gap provides a path for the transfer of said first fluid, wherein said tubes comprise a first region of reduced diameter located proximate to said shell side fluid inlet and second region of reduced diameter located proximate to said shell side fluid outlet, to allow said first fluid to form a flow path through said hypocycloidal enclosure gap.
A shell and tube heat exchanger having an outer shell and a series of heat exchange tubes located therein, said shell comprising a shell side fluid inlet and a shell side fluid outlet for transfer of a first fluid, wherein said tubes are capable in use of permitting flow of a second fluid therethrough, said tubes comprising a first end and second end, wherein said tubes are arranged such that they are touching, forming a hypocycloidal enclosure gap therebetween, said hypocycloidal enclosure gap provides a path for the transfer of said first fluid, wherein said tubes comprise a first region of reduced diameter located proximate to said shell side fluid inlet and second region of reduced diameter located proximate to said shell side fluid outlet, to allow said first fluid to form a flow path through said hypocycloidal enclosure gap, wherein the first end and second end of said tubes are secured at their open ends through a tube sheet, and wherein the first end and/or second end of said tubes comprise a cross section shape which is tessellating
A shell and tube heat exchanger having an outer shell and a series of heat exchange tubes located therein, said shell comprising a shell side fluid inlet and a shell side fluid outlet for transfer of a first fluid, wherein said tubes are capable in use of permitting flow of a second fluid therethrough, said tubes comprising a first end and second end, wherein said tubes are arranged such that they are touching, forming a hypocycloidal enclosure gap therebetween, said hypocycloidal enclosure gap provides a path for the transfer of said first fluid, wherein said tubes comprise a first region of reduced diameter located proximate to said shell side fluid inlet and second region of reduced diameter located proximate to said shell side fluid outlet, to allow said first fluid to form a flow path through said hypocycloidal enclosure gap, wherein the first end and second end of said tubes are secured at their open ends through a tube sheet, wherein the first end and/or second end of said tubes comprise a cross section shape which is tessellating, wherein the cross section shape is a hexagon, and wherein the transition from the tube to said tessellating tube end comprises a back-brazed joint.
Dependencies are inferred from the claim text.