Title:
EXHAUST PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2011/101896
Kind Code:
A1
Abstract:
The temperature difference in an exhaust which reaches an exhaust purifying catalyst on the downstream side is suppressed while the entire length of an exhaust system is suppressed. A second catalyst (14) through which a part of an exhaust introduced to a first catalyst (13), and a fuel supply valve (31) for supplying fuel to the second catalyst (14) are disposed upstream of the first catalyst (13) within an exhaust pipe (12). A guide member (30) which introduces a part of an exhaust passing through the inside of a small oxidation catalyst (14) from a downstream-side end portion of the small oxidation catalyst (14), to the upstream side along the outer peripheral surface of the small oxidation catalyst (14).
Inventors:
TAKEUCHI NAOKI (JP)
Application Number:
PCT/JP2010/000993
Publication Date:
August 25, 2011
Filing Date:
February 17, 2010
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
TAKEUCHI NAOKI (JP)
TAKEUCHI NAOKI (JP)
International Classes:
F01N3/20; F01N3/24
Domestic Patent References:
| WO2008081153A1 | 2008-07-10 |
Foreign References:
| JP2009156168A | 2009-07-16 | |||
| JPH0444425U | 1992-04-15 | |||
| JP2005127257A | 2005-05-19 | |||
| JPH0586843A | 1993-04-06 | |||
| JP2004190554A | 2004-07-08 | |||
| JP2002188436A | 2002-07-05 |
Attorney, Agent or Firm:
TANI, Yoshikazu et al. (JP)
Yoshikazu Tani (JP)
Yoshikazu Tani (JP)
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Claims: