Title:
AUTOMOBILE EXHAUST HEAT RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/031454
Kind Code:
A1
Abstract:
An automobile exhaust heat recovery device 1 is provided with a substrate 2 through which a first fluid is circulated and flat flow tubes 5m, 5n which extend at an angle with respect to the flowing direction of the first fluid and has flat surfaces provided so as to be along the flowing direction of the first fluid and through which a second fluid for exchanging heat with the first fluid is circulated. A flat flow tube group on the upstream side and a flat flow tube group on the downstream side in the flowing direction of the first fluid are provided such that a plurality of flat flow tubes 5m and a plurality of flat flow tubes 5n are disposed side by side with gaps therebetween in a direction substantially perpendicular to the flowing direction of the first fluid. End parts 51n on the upstream side in the flowing direction of the first fluid in the flat flow tubes 5n on the downstream side are provided so as not to overlap the flat flow tubes 5m on the upstream side in the flowing direction. A flow path through which the second fluid is circulated so as to make a U turn between the flat flow tube group on the upstream side and the flat flow tube group on the downstream side is configured. Accordingly, heat exchange efficiency can be increased remarkably, a fluid for exchanging heat with cooling water or the like can be guided out to the same side as the introduction side, and the degree of freedom of an installation place in a vehicle can be increased.
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| WO/2006/037409 | TUBULAR ELEMENT AND THE USE THEREOF |
Inventors:
NAGAI TAKANORI (JP)
Application Number:
PCT/JP2019/019743
Publication Date:
February 13, 2020
Filing Date:
May 17, 2019
Export Citation:
Assignee:
SANKEI GIKEN KOGYO CO LTD (JP)
International Classes:
F01N13/08; F01N5/02
Domestic Patent References:
| WO2018116370A1 | 2018-06-28 |
Foreign References:
| JP2014526666A | 2014-10-06 | |||
| JPS5264961U | 1977-05-13 | |||
| JP2001317890A | 2001-11-16 | |||
| JP2010151023A | 2010-07-08 | |||
| JPH0579791A | 1993-03-30 | |||
| JP2006207887A | 2006-08-10 | |||
| JPS6321494A | 1988-01-29 |
Attorney, Agent or Firm:
MOTOI Shigeyuki (JP)
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