HEAT EXCHANGER HAVING WAVE PIN PLATE FOR REDUCING EGR GAS PRESSURE DIFFERENCE

Title:

HEAT EXCHANGER HAVING WAVE PIN PLATE FOR REDUCING EGR GAS PRESSURE DIFFERENCE

Document Type and Number:

WIPO Patent Application WO/2015/190635

Kind Code:

A1

Abstract:

Disclosed is a heat exchanger comprising: a heat exchanger body; a gas inlet for introducing exhaust gas into the heat exchanger body; a coolant inlet for introducing a coolant into the heat exchanger body; a gas outlet for discharging the exhaust gas that is cooled by heat exchange with the coolant; and a coolant outlet for discharging the coolant that completes heat exchange, wherein the heat exchanger body comprises: a tube laminated core which is formed by laminating a plurality of gas tubes side by side; a housing which is formed so as to enclose the tube laminated core, except for both ends thereof; and a wave pin plate which integrally includes a plurality of wave pins and is arranged within each of the gas tubes, wherein each of the wave pins includes a variable pitch section adjacent to the position of the gas outlet and a fixed pitch section adjacent to the position of the gas inlet along the longitudinal direction, the pitch of the wave pin within the variable pitch section is always greater than the pitch of the wave pin within the fixed pitch section, and the variable pitch section accounts for 10 to 60% of the total length of the wave pin plate.

Inventors:

CHO YONG KUK (KR)

Application Number:

PCT/KR2014/005432

Publication Date:

December 17, 2015

Filing Date:

June 19, 2014

Export Citation:

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Assignee:

KORENS CO LTD (KR)

International Classes:

F28F13/06; F28F1/10; F28F13/12

Foreign References:

JP2004177061A	2004-06-24
KR100814073B1	2008-03-14
JP2013088078A	2013-05-13
JP2004263616A	2004-09-24
JP2005180268A	2005-07-07

Other References: