Title:
EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2019011746
Kind Code:
A
Abstract:
To suppress the water coverage of an exhaust sensor resulting from a water component which is scattered when condensed water contained in bypass exhaust emission is boiled at an upstream-side end face of an exhaust emission purification catalyst.SOLUTION: This exhaust system of an internal combustion engine is constituted so that bypass exhaust emission being exhaust emission flowing out of a bypass passage flows while being oriented to a prescribed region at an upstream-side end face of an exhaust emission purification catalyst when an opening of a waste gate valve is not smaller than a prescribed opening, and an exhaust sensor is arranged in a specified passage being an exhaust emission passage between a turbine and the exhaust emission purification catalyst. In the exhaust sensor, the prescribed region is arranged along an axial direction of the exhaust emission purification catalyst to a direction orthogonal to the axial direction of the exhaust emission purification catalyst with respect to a region (scattered region B) which is virtually extended to the specified passage side while separating therefrom by a first distance or longer.SELECTED DRAWING: Figure 5
Inventors:
KIMURA KOICHI
IRISAWA YASUYUKI
IRISAWA YASUYUKI
Application Number:
JP2017130153A
Publication Date:
January 24, 2019
Filing Date:
July 03, 2017
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F01N3/24; F01N3/00; F02B37/18
Domestic Patent References:
| JP2012002094A | 2012-01-05 | |||
| JP2012241545A | 2012-12-10 | |||
| JP2014202163A | 2014-10-27 | |||
| JP2017096158A | 2017-06-01 | |||
| JP2012180793A | 2012-09-20 | |||
| JP2011169202A | 2011-09-01 | |||
| JP2003254051A | 2003-09-10 |
Foreign References:
| US20120312011A1 | 2012-12-13 |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo