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Soldered aluminum heat exchanger

A technology of heat exchangers and brazing, applied in heat exchange equipment, welding media, manufacturing tools, etc., to achieve high production and reduce fuel consumption

Inactive Publication Date: 2012-09-12
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, a disadvantage in the production of existing aluminum heat exchangers from aluminum tubes with a zinc-containing protective coating on the inside is that internal brazing is no longer possible

Method used

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  • Soldered aluminum heat exchanger
  • Soldered aluminum heat exchanger
  • Soldered aluminum heat exchanger

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0033] FIG. 1 schematically shows a four-layer structure for forming a tube 1 of a brazed aluminum heat exchanger.

[0034] The tube 1 consists of a core material 2 and a protective coating 3 containing aluminum inside the core material 2 . Furthermore, an inner solder coating 4 is provided on the protective coating 3 and an outer solder coating 5 is provided on the outer side 6 facing away from the coolant side of the tube 1 .

[0035] Figure 2 shows the schematically illustrated geometry of the first tube in cross-section. The tube 7 is designed here as a welded concave tube. The indentation 8 can be formed manually or mechanically and forms a groove-like depression 9 in the tube 7 which essentially serves to increase rigidity.

[0036] Figure 3 shows the schematically illustrated geometry of the second tube in cross-section. The tube 10 is designed here as a brazed female tube. The indentation 11 can be formed manually or mechanically and forms a groove-like depression ...

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PUM

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Abstract

The invention relates to a soldered aluminum heat exchanger, having tubes made of a core material through which tubes a coolant flows, and said tubes being connected to at least one header by means of an inner soldered joint; having a protective plating on the inner face of the core material comprising aluminum and using four-layer technology; having an inner solder plating on the protective plating; and having an outer solder plating on the outer face of the tube facing away from the coolant face.

Description

technical field [0001] The present invention relates to a brazed aluminum heat exchanger. Background technique [0002] Tubes are the components used to make brazed aluminum heat exchangers. Tubes can be welded, folded and then brazed or extruded. [0003] DE 102005059717 A1 discloses a device for exchanging heat between an acid-containing gas and a heat exchange medium, the device having at least one flow channel for the acid-containing gas, which channel is essentially made of aluminum and / or an aluminum alloy . [0004] DE 1677069B relates to a method of manufacturing with two aluminum plates and a device for carrying out the method. [0005] DE 60200818T2 relates to a method for producing a heat exchanger comprising tubes made of an alloy, each having a layer thermally sprayed with Zn constructed on the corresponding surface and using a powdered In the case of solder, a brazing layer made of an aluminum alloy is constructed on a thermally sprayed Zn layer, the compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F19/06F28F21/08B23K1/00B23K35/02
CPCB23K1/0012B23K35/0238B23K35/286F28F19/06F28F21/084F28F21/089B23K2101/14B23K2103/10
Inventor 马蒂亚斯·特劳伯贝恩德·格吕嫩瓦尔德安德烈亚斯·艾勒曼马蒂亚斯·科尔代利耶马蒂亚斯·蒂尔佩
Owner BEHR GMBH & CO KG