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Flow channel for a heat exchanger and heat exchanger with the same

A technology of heat exchanger and flow channel, applied in the field of heat exchanger

Active Publication Date: 2006-12-06
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat transfer capability needs to be improved

Method used

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  • Flow channel for a heat exchanger and heat exchanger with the same
  • Flow channel for a heat exchanger and heat exchanger with the same
  • Flow channel for a heat exchanger and heat exchanger with the same

Examples

Experimental program
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Embodiment Construction

[0030] Figure 1 shows a simplified diagram of a flow channel 1, which is a rectangular tube with a rectangular inlet cross-section 2, two flat sides F1, F2 opposite each other and two narrow sides S1, S2. Flow channel 1 is passed through by a medium such as exhaust gas in the direction indicated by arrow P. Vortex generators 3 a , 3 b , 4 a , 4 b arranged in a V-shaped direction are arranged on the lower flat side F2 , which increase the turbulence of the fluid by generating vortices and at the same time prevent the formation of carbon deposits in the exhaust gas flow. This figure corresponds to the prior art described at the beginning of this description. According to the prior art, the vortex generators 3 a , 3 b and 4 a , 4 b arranged in pairs in each case in a V-shape and widening in the direction of flow in the shape of a diffuser are also referred to as finlets.

[0031] FIG. 2a shows a cross-section through a flow channel 1 formed by flat tubes, where pairs of small f...

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Abstract

The invention relates to a flow channel of a heat exchanger with two parallel heat transfer areas (F1, F2) that are arranged at a distance corresponding to a channel height H. Each heat transfer area (F1, F2) is provided with a structure that is formed by a plurality of structural elements which are placed next to each other in rows running perpendicular to the direction of flow P and extend into the flow channel. Each structural element has a width B, a length L, a height h, a flow-off angle alpha, and an overlap while being provided with a longitudinal axis.

Description

technical field [0001] The invention relates to a flow channel of a heat exchanger through which a medium can flow in one flow direction. Furthermore, the invention also relates to a heat exchanger with the aforementioned flow channel. Background technique [0002] The flow channels in the heat exchanger are passed through by a first medium, such as exhaust gas or liquid coolant, and separate the first medium from the second medium, and the first medium transfers heat to the second medium. Such a flow channel can be a tube with a circular cross section, a rectangular tube, a flat tube or also a double-piece formed by connecting two plates or plates at the edges. In most cases, the media in the heat exchange are different, for example, the hot exhaust gas containing carbon black particles flows in the tube, while the exhaust gas tube is circulated by a liquid coolant on the outside, so that in the tube Different heat transfer occurs on the inside and outside. Therefore, it...

Claims

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Application Information

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IPC IPC(8): F28F13/12F28F1/40F28F3/04
CPCF28F13/12F28D21/0003F28F3/04F28F13/02F28F1/40
Inventor 彼得·格斯克斯赖纳·卢茨乌尔里希·毛赫尔马丁·申德勒米夏埃尔·施密特
Owner BEHR GMBH & CO KG
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