Heat exchanger

Patent metadata

Field	Value
Publication number	US-11248854-B2
Application number	US-201916976366-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 9, 2018
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

A heat exchanger comprising: a core comprising first fluid channels, for guiding a first fluid, wherein each of the first fluid channels comprises a plurality of spur conduits interconnecting with at least one of another of the first fluid channels; a manifold for first fluid input comprising an input port which communicates with an input chamber for a first fluid, the chamber branching to form a plurality of first-fluid core-input channels; and a manifold for first fluid output comprising a plurality of first-fluid core-output channels which lead into an output chamber communicating with an output port, wherein each first fluid channel in the core communicates between a respective first-fluid core-input channel and a respective first-fluid core-output channel.

First claim

What is claimed is:

1. A heat exchanger comprising:
a core comprising first fluid channels, for guiding a first fluid, wherein each of the first fluid channels comprises a plurality of spur conduits interconnecting with at least one of another of the first fluid channels;
a manifold for first fluid input comprising an input port which communicates with an input chamber for a first fluid, the chamber branching to form a plurality of first-fluid core-input channels; and
a manifold for first fluid output comprising a plurality of first-fluid core-output channels which lead into an output chamber communicating with an output port,
wherein each first fluid channel in the core communicates between a respective first-fluid core-input channel and a respective first-fluid core-output channel; and
wherein the core further comprises second fluid channels, for guiding a second fluid, wherein each of the second fluid channels comprises a plurality of spur conduits interconnecting with at least one of another of the second fluid channels,
and wherein the heat exchanger further comprises:
a manifold for second fluid input comprising a single input port which communicates with an input chamber for the second fluid, the input chamber branching to form a plurality of second-fluid core-input channels;
a manifold for second fluid output comprising a plurality of second-fluid core-output channels which lead into an output chamber communicating with an output port; and
wherein each second fluid channel communicates between a respective second-fluid core-input channel and a second-fluid core-output channel;
wherein the plurality of spur conduits of the second fluid channels extend through a channel of the first fluid channels; and
wherein each of the plurality of the spur conduits defines an outer wall and a bore for guiding fluid, wherein the outer wall has an elongate cross section, thereby defining a shorter aspect and a longer aspect; and
wherein the outer wall is configured such that the longer aspect is generally aligned with a predetermined fluid flow direction.

2. The heat exchanger according to claim 1 wherein each of the plurality of the spur conduits is inclined to at least one of the fluid channels which it interconnects by between 30 and 60 degrees.

3. The heat exchanger according to claim 1 wherein each of the plurality of spur conduits is inclined to a predetermined flow direction.

4. The heat exchanger according to claim 1 , wherein the outer wall is elliptical.

5. The heat exchanger according to claim 1 wherein the outer wall has an aspect ratio of 4:1 to 1.5:1.

6. The heat exchanger according to claim 5 wherein the outer wall has an aspect ratio of 2.5:1 to 1.5:1.

7. The heat exchanger according to claim 1 wherein the first fluid channels and second fluid channels are interleaved.

8. The heat exchanger according to claim 1 wherein one of the first fluid manifolds and one of the second fluid manifolds are integrated such that channels from the first fluid manifold are interleaved with channels from the second fluid manifold.

9. The heat exchanger according to claim 7 wherein the manifold for first fluid input is integrated with the manifold for second fluid output, the first-fluid core-input channels and the second-fluid core-output channels thereby being interleaved.

10. The heat exchanger according to claim 7 wherein the manifold for first fluid input is integrated with the manifold for second fluid input, the first-fluid core-input channels and the second-fluid core-input channels thereby being interleaved.

Assignees

• Bae Systems Plc

Inventors

• Greiciunas Evaldas

Classifications

• F28F7/02

  Blocks traversed by passages for heat-exchange media {(F28D7/0008 takes precedence)} · CPC title

• F28F3/086 Primary

  having one or more openings therein forming tubular heat-exchange passages · CPC title

• F28F9/02 Primary

  Header boxes; End plates · CPC title

• F28F2250/04

  Communication passages between channels · CPC title