Title:
EGR COOLER
Document Type and Number:
WIPO Patent Application WO/2016/167477
Kind Code:
A1
Abstract:
An EGR cooler according to the present invention comprises: a body cell which cooling water enters and exits; a plurality of gas tubes, formed in a plate-like tubular shape, which are mounted in a vertical stack structure within the body cell and have a gas inlet portion, through which exhaust gas is introduced, on one side in the width direction thereof and a gas outlet portion, through which the exhaust gas introduced through the gas inlet portion is discharged back, on the other side in the width direction thereof; an inlet/outlet flange coupled so as to cover one side of the body cell in which the inlet/outlet of the gas tube is positioned; and a shield cap coupled so as to cover the other side of the body cell, wherein the cross section of the gas outlet portion has a higher height and a narrower width than the cross section of the gas inlet portion, and the interval between neighboring gas inlet portions is broader than the interval between neighboring gas outlet portions. The EGR cooler according to the present invention has the advantages of which an exhaust gas rate in the gas inlet portion increases, whereby an exhaust gas flow within the gas tubes becomes smooth; a greater amount of cooling water flows between neighboring gas inlet portions, whereby it is possible to maintain exhaust gas cooling efficiency at a high level; and eddies do not occur while the cooling water flows between the gas tubes, whereby vibration and noise are reduced.
Inventors:
CHO YONG KUK (KR)
Application Number:
PCT/KR2016/002576
Publication Date:
October 20, 2016
Filing Date:
March 15, 2016
Export Citation:
Assignee:
KORENS CO LTD (KR)
International Classes:
F28D9/00; F28F1/04
Foreign References:
| KR20140026135A | 2014-03-05 | |||
| KR100823654B1 | 2008-04-21 | |||
| JP2011196620A | 2011-10-06 | |||
| JP5203759B2 | 2013-06-05 | |||
| KR20090060815A | 2009-06-15 |
Attorney, Agent or Firm:
KIM, Sun Kee et al. (KR)
김선기 (KR)
김선기 (KR)
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