Exhaust gas aftertreatment mixer
US-12163456-B2 · Dec 10, 2024 · US
Reductant delivery unit for automotive selective catalytic reduction with gasket anti-deposit shielding structure
US9010089B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9010089-B2 |
| Application number | US-201113212865-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 18, 2011 |
| Priority date | Aug 18, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A reductant delivery unit ( 10 ) includes a fluid injector ( 12 ) and a flange ( 20 ) coupled with the fluid injector. An exhaust boss ( 28 ) has a surface ( 39 ) defining a through-hole ( 40 ) that communicates with a vehicle's exhaust flow path. The flange is coupled to a mounting surface such that the outlet of the fluid injector communicates with the exhaust flow path so as to control injection of urea solution into the exhaust gas flow path. A gasket ( 32 ) is sandwiched between the flange and the mounting surface. The gasket has a surface ( 37 ) defining a through-hole ( 38 ) therein that communicates with the through-hole in the exhaust boss to permit the urea solution to pass from the fluid outlet to the exhaust flow path. Gasket shielding structure ( 44 ) covers the surface defining the through-hole in the gasket to prevent the urea solution from contacting the gasket.
First claim
Opening claim text (preview).
What is claimed is: 1. A reductant delivery unit for selective catalytic reduction (SCR) after-treatment for vehicles in combination with an exhaust boss, the combination comprising: a reductant delivery unit comprising: a fluid injector having an inlet and an outlet, the inlet being constructed and arranged to receive a source of urea solution, and a flange coupled with the fluid injector, an exhaust boss separate from the flange and having a surface defining a through-hol…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F01N3/2066Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9010089B2 cover?
- A reductant delivery unit ( 10 ) includes a fluid injector ( 12 ) and a flange ( 20 ) coupled with the fluid injector. An exhaust boss ( 28 ) has a surface ( 39 ) defining a through-hole ( 40 ) that communicates with a vehicle's exhaust flow path. The flange is coupled to a mounting surface such that the outlet of the fluid injector communicates with the exhaust flow path so as to control injec…
- Who is the assignee on this patent?
- Bugos Stephen C, Hornby Michael J, Continental Automotive Systems
- What technology area does this patent fall under?
- Primary CPC classification F01N3/2066. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 21 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).