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Crimp items with crimped corners

A technology for articles and corners, applied in the field of motor vehicle equipment, can solve problems such as sealing loss

Active Publication Date: 2021-11-30
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detachment tends to propagate along the fins juxtaposed with the corners in question, causing release of the fins and ultimately loss of CAC seal at these interfaces

Method used

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  • Crimp items with crimped corners
  • Crimp items with crimped corners
  • Crimp items with crimped corners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Refer below Figures 1 to 7 The crimping article according to the present invention is described.

[0035] The crimping article 1 comprises a cover 2 , a crimping flange 3 and optionally a container 4 .

[0036] The cover 2 (generally comprising side walls and surfaces) has corners 21 . The corner 21 generally has two side walls 25 (which in particular form part of two adjacent side walls of the cover 2 ) and a surface 22 (which in particular form part of the surface of the cover 2 ). Seen from above (ie in a direction perpendicular to the surface of the corner 21 ), the two side walls 25 of the corner 21 form an angle of less than 180°. The corners can be rounded or chamfered, i.e. seen from above, the transition between the two walls is an arc of circle preferably with a radius of 4±2 mm (forming the perimeter 23 of the corner) or preferably with a length of 4 mm. ±2mm chamfer. The cover 2 is preferably made of plastic or metal, for example aluminum or steel.

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PUM

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Abstract

The invention relates to a crimping article comprising: a cover (2) with corners; a crimping flange (3) having at least one corner piece before crimping, the shape of which matches the shape of the corners of the cover ; and wherein a part of the corner part of the crimping flange (3) is crimped to the surface of the corner of the cover (2). The invention also relates to a heat exchanger (1) comprising such a crimped article. The invention also relates to a charge air cooler and an exhaust gas recirculation system comprising such a heat exchanger (1).

Description

technical field [0001] The present invention relates to the technical field of motor vehicle equipment, in particular to equipment supplying air to a motor vehicle engine, and more particularly to an engine whose air supply comes from a compressor or a turbocompressor. Background technique [0002] The air supply obtained from the compressor or turbo compressor is also called "charge air". [0003] In order to increase the charge air density of a turbocompression engine, it is known to cool the charge air discharged from the compressor by means of a heat exchanger, also known as a charge air cooler (abbreviated CAC). [0004] CACs typically include heat exchange bundles. The heat exchange bundle comprises a stack of plates or tubes which alternately form channels for the circulation of charge air to be cooled and channels for the circulation of coolant, in particular engine coolant. The heat exchange between the plates or tubes and the charge air takes place partly through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02B65D77/20
CPCF28D2021/0082F28F9/0224F28F2275/122
Inventor S.德韦德克斯L.奥迪拉德D.奥内蒂C.达西尔瓦P.达西尔瓦
Owner VALEO SYST THERMIQUES