EXHAUST PIPE

WIPO Patent Application WO/2011/145560

A1

Disclosed is an exhaust pipe which prevents a reducing agent from penetrating a support member for an exhaust purification catalyst, and effectively prevents the exhaust purification catalyst from being damaged by the expansion of the support member. An exhaust purification catalyst (30) for reducing and purifying nitrogenous compounds contained in exhaust air discharged from an internal combustion engine, using a reducing agent to be supplied, is provided on the inside of an exhaust pipe (10) via support members (20). A block portion (15) for preventing the reducing agent from penetrating the exhaust purification catalyst (30) is provided on the portion of the inner peripheral surface of the exhaust pipe (10), which is upstream of the exhaust purification catalyst (30).

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ONODERA TAKAO (JP)
KAGEYAMA YUUTA (JP)
OHARA ISAO (JP)

PCT/JP2011/061195

November 24, 2011

May 16, 2011

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ISUZU MOTORS LTD (JP)
HINO MOTORS LTD (JP)
ONODERA TAKAO (JP)
KAGEYAMA YUUTA (JP)
OHARA ISAO (JP)

F01N3/24; F01N3/08; F01N13/08

WO2010004637A1

2010-01-14

JP2008511795A	2008-04-17
JPH0780319A	1995-03-28

None

KINUTANI Nobuo (JP)
Nobuo Kinutani (JP)

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