Title:
EXHAUST JUNCTION PIPE
Document Type and Number:
WIPO Patent Application WO/2017/126125
Kind Code:
A1
Abstract:
Provided is an exhaust junction pipe whereby a first exhaust gas flow path and a second exhaust gas flow path, through which second exhaust gas the temperature of which becomes equal to or higher than the temperature of exhaust gas flowing in the first exhaust gas flow path flows, are merged together, and the merged exhaust gas is guided to a catalyst. The exhaust junction pipe is equipped with an outer pipe and an inner pipe. The outer pipe is connected to the first exhaust gas flow path and forms an exhaust gas flow path for guiding the first exhaust gas and the exhaust gas merged before the catalyst to the catalyst. The inner pipe is a pipeline disposed inside the exhaust gas flow path formed by the outer pipe, and which is connected to the second exhaust gas flow path and forms an exhaust gas flow path for guiding the second exhaust gas to a position before the catalyst. A space for the first exhaust gas to flow therein is disposed between the inner surface of the outer pipe and the outer surface of the inner pipe of the exhaust junction pipe.
Inventors:
MATSUMOTO NAOKI (JP)
TSUBOSAKA MUNEHIRO (JP)
TSUBOSAKA MUNEHIRO (JP)
Application Number:
PCT/JP2016/051921
Publication Date:
July 27, 2017
Filing Date:
January 22, 2016
Export Citation:
Assignee:
FUTABA IND CO LTD (JP)
International Classes:
F01N3/26; F01N13/08; F01N13/14
Foreign References:
| JPH02291414A | 1990-12-03 | |||
| JPS63130614U | 1988-08-26 | |||
| JPH11223121A | 1999-08-17 | |||
| JP2005207388A | 2005-08-04 | |||
| JP2010203248A | 2010-09-16 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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