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Multichannel tubes with deformable webs

A technology of multi-channel tube and partition, applied in the field of multi-channel tube

Active Publication Date: 2013-03-06
JOHNSON CONTROLS TYCO IP HLDG LLP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multiple independent flow channels within the multi-channel tube can make this assembly using cones or other expansion tools problematic

Method used

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  • Multichannel tubes with deformable webs
  • Multichannel tubes with deformable webs
  • Multichannel tubes with deformable webs

Examples

Experimental program
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Embodiment Construction

[0022] The present invention is directed to multi-channel tubes that are expandable for assembly in plate-fin heat exchangers. These multi-channel tubes each include a number of generally parallel flow paths extending along the length of the multi-channel tube. These flow paths are separated from each other by deformable partition walls designed to deform upon pressurization of the multi-channel tube. As used herein, the term "deformable partition" includes partitions that are designed so that the shape, geometry, width and / or height of the partition changes in response to a change in pressure. These deformable partition walls are inclined in the same direction along the width of the multi-channel tube, thereby forming a substantially parallelogram-shaped flow path. The edges of the multichannel tube may be chamfered to inhibit deflection of the sidewalls during hydraulic expansion. In certain embodiments, the chamfered edges may be designed to form curved and generally symm...

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Abstract

The present disclosure is directed to multichannel tubes that can be expanded to assemble the multichannel tubes within plate fin heat exchangers. The multichannel tubes each include several generally parallel flow paths, which are separated from one another by deformable webs slanted in a common direction across a width of the multichannel tubes. The webs may deform upon expansion of the tubes with a high pressure fluid. During expansion, the webs may stretch, shift positions, and / or change shape to allow the outer dimensions of the tube to increase. The multichannel tubes may be designed to expand to fill openings of plate fins, creating an interference fit between the multichannel tubes and the plate fins.

Description

technical field [0001] The present invention relates generally to multichannel tubes with deformable partition walls, and more particularly to multichannel tubes that can be used in plate-fin heat exchangers. Background technique [0002] Heat exchangers are used in heating, ventilation, air conditioning and refrigeration (HVAC&R) systems. Multi-channel heat exchangers generally include multi-channel tubes for flowing refrigerant through the heat exchanger. Each multichannel tube can contain several independent flow channels. When a fluid such as refrigerant flows through the flow channels, the fluid can exchange heat with an external fluid such as air flowing between the multi-channel tubes. Multi-channel tubes can be used in heat exchangers for small tonnage systems such as residential systems, or in large tonnage systems such as industrial chiller systems. Furthermore, multichannel tubes can also be used in other heating and / or cooling devices, such as radiators. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/02F28F1/32B21D53/08B23P15/26
CPCB23P15/26F28F2255/02F28F1/32F28F1/022F28D1/05383F28F2275/125F28F1/025F28D2021/0068B21D53/08Y10T29/4935
Inventor J·A·马特三世J·L·塔克
Owner JOHNSON CONTROLS TYCO IP HLDG LLP