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Corrugated fin with louvers for a heat exchanger

A technology of heat exchangers and shutters, applied in the direction of heat exchange equipment, heat exchanger types, indirect heat exchangers, etc., can solve problems such as load loss and load loss increase

Inactive Publication Date: 2009-06-10
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of thermal performance is achieved by disturbing the air flow a lot, and at the same time causing the air flow to accelerate, which causes a lot of load loss.
[0016] So in short, known solutions, even if in some cases they improve the heat exchange performance, in any case they lead to a substantial increase in load losses

Method used

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  • Corrugated fin with louvers for a heat exchanger
  • Corrugated fin with louvers for a heat exchanger
  • Corrugated fin with louvers for a heat exchanger

Examples

Experimental program
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Embodiment Construction

[0046] Referring first to Figure 1, there is shown a portion of a corrugated interlayer 10 according to the invention, which interlayer is disposed between two parallel tubes 12 which belong to a tube bundle of a heat exchanger. The tube 12 is a "flat tube". The corrugated sandwich 10 is formed from a single sheet of metal, usually an aluminum alloy, and the sandwich includes a set of flat walls 14, which are joined by folds 16 extending in parallel in a given direction (perpendicular to the plane of the drawing) between the flat walls. Connect two by two so as to form alternating ripples.

[0047] The pleats 16 are joined to the large surfaces 18 of the tubes 12 by welding to form a heat exchanger bundle. The bundle is formed from a plurality of tubes 12 and a plurality of corrugated interlayers, each of which is placed between two tubes at the front and rear of the bundle by known methods.

[0048]The interlayer 14 has a vertical axis A which is parallel to the axial direc...

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PUM

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Abstract

The present invention relates to a corrugated fin with louvers for a heat exchanger, the fin comprises flat walls (14) connected in pair by parallel creases (16), each wall has a plurality of louvers (24). A plane (P) of the wall (14) and each louver (24) form an evolutive inclination angle from a value (alpha) in a region of the small side (30) until another value (beta) in a region of the small side (32) for conferring a twist shape to the louver. The inclination angle has a top angle (S) along the long side (26) of the louver, thus the louver is approximately twist shape. The invention is mainly used for heat exchanger of automobiles.

Description

technical field [0001] The present invention relates to heat exchangers, mainly for automobiles. [0002] In particular, the present invention relates to a corrugated interlayer for heat exchangers, which interlayer is formed from a metal sheet and comprises a band of flat walls connected two by two by pleats extending parallel between them so that Forming alternating corrugations, each wall of which has a limited height between two successive pleats, each wall has a plurality of louvers formed by cutting and forming sheet metal, these louvers have two louvers extending along the height of the wall Cut the long side as well as the two short sides that are attached to the flat faces of the wall. [0003] These corrugated interlayers, also called corrugated vanes, are used in the manufacture of heat exchangers. The interlayers are therefore arranged between the individual pipes of a tube bundle and are connected to these pipes, usually by welding the respective folds of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/12F28D1/053
CPCF28F1/128F28F2215/04
Inventor 赫维莱恩·罗比多弗吉尼·文森特艾蒂尼·查丁克劳德·贝索姆比斯
Owner VALEO SYST THERMIQUES