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Title:
排気管及び内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP4231303
Kind Code:
B2
Abstract:

To provide an exhaust pipe capable of avoiding damage to a sensor element by preventing water generated by the moisture condensation in exhaust gas from contacting with the sensor and preventing a drop in detection accuracy by the sensor, and to provide an exhaust emission control device for an internal combustion engine with the pipe.

A partition plate 100 separating an exhaust passage into upper and lower parts is provided in the exhaust pipe 50 to form a first passage 50A in the upper part and a second passage 50B in the lower part. A plurality of communication holes 101 communicating the first passage 50A and the second passage 50B is provided in the plate 100. There is further provided a wall 102 inclined downwards below the hole 101, thereby forming a communication passage communicating the first and the second passages 50A, 50B.

COPYRIGHT: (C)2004,JPO&NCIPI


Inventors:
Yoshihiro Sakayanagi
Yusuke Suzuki
Moriya Eiki
Masaaki Kobayashi
Satoshi Nakamura
Application Number:
JP2003045911A
Publication Date:
February 25, 2009
Filing Date:
February 24, 2003
Export Citation:
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Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
Japan Auto Parts Research Institute, Inc.
International Classes:
F01N9/00; F01N13/00; F01N99/00
Domestic Patent References:
JP58053829U
JP8254522A
JP5321214U
JP2149815U
JP2002303135A
Attorney, Agent or Firm:
Tsutomu Toyama
Hidemi Matsukura
Yutaka Nagata
Yoshiyuki Kawaguchi