Title:
EXHAUST GAS HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2013/094149
Kind Code:
A1
Abstract:
An EGR cooler (1) comprises: a heat exchange core (3) having tubes (7) and a first coolant conduit (33); an upstream gas tank (6) and a downstream gas tank (8), which are respectively provided on the upstream side and the downstream side so as to connect to the inside of the tubes (7); a coolant tank (2) for forming the first coolant conduit (33) and forming a second coolant conduit (202) around the upstream gas tank (6), the second coolant conduit (202) connecting to the first coolant conduit (33); a double tube (5) having a gas conduit (53) which is formed within the inner tube (50) and which connects to the inside of the upstream gas tank (6), and having a coolant conduit (52) which is formed between the inner tube (50) and the outer tube (51) and which connects to the second coolant conduit (202); a coolant inlet tube (54) connected to the outer tube (51) and allowing coolant to flow therethrough into the coolant conduit (52); and a coolant outlet tube (34) connected to the coolant tank (2) and allowing the coolant to flow out of the first coolant conduit (33).
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Inventors:
KUROYANAGI ISAO (JP)
HAYASHI TAKAYUKI (JP)
IGUCHI TAKESHI (JP)
YAMANAKA YASUTOSHI (JP)
HAYASHI TAKAYUKI (JP)
IGUCHI TAKESHI (JP)
YAMANAKA YASUTOSHI (JP)
Application Number:
PCT/JP2012/007890
Publication Date:
June 27, 2013
Filing Date:
December 11, 2012
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F28D7/16; F02M25/07; F28D7/10; F28F9/02
Foreign References:
| JP2011232020A | 2011-11-17 | |||
| JPH03113291A | 1991-05-14 | |||
| JPS3713676Y1 | ||||
| JPS58135313A | 1983-08-11 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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Claims: