Title:
EXHAUST PIPE AND METHOD FOR MANUFACTURING EXHAUST PIPE
Document Type and Number:
WIPO Patent Application WO/2017/047319
Kind Code:
A1
Abstract:
An exhaust pipe is provided with a first pipe and a second pipe. An increased-diameter cylinder section has, in a cross-section thereof taken along a plane including the center axis of a small-diameter cylinder section, a surface which has an arc shape protruding toward the inner surface of the increased-diameter cylinder section, the inner diameter of the surface changing along a curved line. A reduced-diameter cylinder section has, in a cross-section thereof taken along a plane including the center axis of a large-diameter cylinder section, a surface which has an arc shape protruding toward the inner surface of the reduced-diameter cylinder section, the inner diameter of the surface changing along a curved line. An increased-diameter front end section which is the front end part of the increased-diameter cylinder section and a reduced-diameter front end section which is the front end part of the reduced-diameter cylinder section are joined.
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Inventors:
KOBORI KIYOMICHI (JP)
Application Number:
PCT/JP2016/074099
Publication Date:
March 23, 2017
Filing Date:
August 18, 2016
Export Citation:
Assignee:
FUTABA IND CO LTD (JP)
International Classes:
F01N3/28; F01N13/18
Foreign References:
| JP2009108724A | 2009-05-21 | |||
| JP2014058908A | 2014-04-03 | |||
| JP2007211663A | 2007-08-23 | |||
| JP2006009793A | 2006-01-12 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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