Title:
EXHAUST STRUCTURE AND INJECTOR ATTACHMENT MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/105876
Kind Code:
A1
Abstract:
Provided are an exhaust structure and an injector attachment member with which adhesion of urea in the vicinity of a urea water nozzle hole can be minimized. The exhaust structure comprises an exhaust pipe through which exhaust gas emitted from an internal combustion engine flows, a urea water injector that injects urea water, a selective catalytic reduction (SCR) catalyst provided downstream of the injection position of the urea water in the exhaust pipe, and an injector attachment member for fixedly attaching the urea water injector to the exhaust pipe. The injector attachment member is a cylindrical body passing through in the axial direction, and is attached to the exhaust pipe such that a nozzle hole of a urea water injector is disposed in one opening part and the other opening part faces the inside of the exhaust pipe on the upstream side of the SCR catalyst. The inner peripheral surface of the injector attachment member is provided with a rib that causes exhaust gas flowing from the other opening part to the one opening part to change direction so as to flow from the one opening part to the other opening part.
Inventors:
OHARA ISAO (JP)
SAKAI JUNJI (JP)
UEDA YUKI (JP)
SAKAI JUNJI (JP)
UEDA YUKI (JP)
Application Number:
PCT/JP2022/034545
Publication Date:
June 15, 2023
Filing Date:
September 15, 2022
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/24; B01D53/94; F01N3/08; F01N13/08
Domestic Patent References:
| WO2014115461A1 | 2014-07-31 |
Foreign References:
| JP2009115057A | 2009-05-28 | |||
| JP2008151088A | 2008-07-03 | |||
| JP2005127271A | 2005-05-19 | |||
| US10508579B2 | 2019-12-17 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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