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Heat exchange device

A heat exchanger and fluid technology, applied in heat exchange equipment, installation, heat exchangers, etc., can solve the problems of manufacturing complexity, performance reduction, misalignment of fluid inlet direction and fluid outflow direction, etc.

Active Publication Date: 2017-07-21
BORGWARNER EMISSIONS SYST SPAIN S L U
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat exchanger solves the problems identified above by providing an efficient and compact device that can be easily manufactured, and which allows misalignment of the direction of fluid entry with the direction of fluid exit, which is not required for the heat exchanger. Very restrictive conditions that necessarily involve further manufacturing complexity or necessarily degrade performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 2

[0113] Embodiment 2 is the heat exchanger according to Embodiment 1, wherein the path of the directrix D-D':

[0114] - including the main longitudinal section X-X',

[0115] - or the directrix D-D' is an S-shaped path.

Embodiment approach 3

[0116] Embodiment 3 is the heat exchanger according to embodiment 2, wherein one or both ends 2.1 of the tubes 2 have sides 2.3, 2.4 shown as curved arcs, one of the sides 2.3, 2.4 The radius of the directrix DD' is larger than that of the other side, the path of the directrix DD' includes the main longitudinal section XX' and additionally includes curved sections at the inlet and outlet of the end 2.1 of the tube.

Embodiment approach 4

[0117] Embodiment 4 is the heat exchanger according to embodiment 3, wherein the two ends 2.1 of the tubes 2 have sides 2.3, 2.4 in bends contained in the main surfaces of the flat tubes 2 in the A 90° transition is established between the main longitudinal section XX' of the path of the directrix DD' and the curved sections at the inlet and outlet so that the direction of entry and exit of the first fluid are parallel .

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Abstract

The present invention relates to a heat exchange device suitable for cooling recirculated exhaust gases in an EGR (Exhaust Gas Recirculation) system. The invention is characterized by a configuration that allows incorporating the heat exchanger in very small spaces and with the recirculated exhaust gas inlets and outlets not necessarily being aligned. It is also characterized by an inner configuration based on the stack of flat tubes configured by means of die-cut and stamped sheets configuring a complex path of the fluid to be cooled. According to embodiments, the invention is incorporated in a cavity of the engine block of an internal combustion engine with fluid communication with the liquid coolant. The present invention has an impact on protecting the environment.

Description

technical field [0001] The invention relates to a heat exchange device suitable for cooling recirculated exhaust gas in an EGR (Exhaust Gas Recirculation) system. [0002] The invention is characterized by a configuration that allows the integration of the heat exchanger in a very small space and that the inlet and outlet of the recirculated exhaust gas do not need to be aligned. [0003] The invention is also characterized in that it is based on the internal configuration of the stack of flat tubes, which are configured by means of die-cutting and stamping of plates into complexly structured paths for the fluid to be cooled. [0004] According to an embodiment, the invention is incorporated in a cavity of an engine block of an internal combustion engine in fluid communication with a liquid coolant. [0005] The invention has an impact on environmental protection. Background technique [0006] One of the technical fields that has undergone the most intensive development is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/31
CPCF28F2280/06F28F9/001F28F9/002F28F9/0265F28F9/22F28D7/06F28D9/0037F28F1/025F28F1/04F28F2255/10F28F2009/226F28F2250/06F02M26/30F02M26/32F02M26/28F28D1/03F28D2021/008F28D7/0066F28D21/0003F28F9/02
Inventor 钗安·钗斯·埃米达多明格斯哈维尔·诺沃曼努埃尔·洛伦佐冈萨雷斯亚历杭德罗·瓦尔加斯
Owner BORGWARNER EMISSIONS SYST SPAIN S L U