Exhaust gas aftertreatment mixer
US-12163456-B2 · Dec 10, 2024 · US
Selective catalytic reduction system
US9080489B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9080489-B2 |
| Application number | US-201113699491-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2011 |
| Priority date | May 25, 2010 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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Abstract
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A Selective Catalytic Reduction (“SCR”) system that can detect a NO x concentration accurately irrespective of an operation state of an engine is provided. The SCR system including: an SCR device; a dosing valve; a NO x sensor; and an urea solution injection control unit.
First claim
Opening claim text (preview).
The invention claimed is: 1. An SCR system including: an SCR (selective catalytic reduction) device provided in an exhaust pipe for an engine; a dosing valve that injects urea solution on an upstream side of the SCR device; a NO x sensor provided in the exhaust pipe; and a urea solution injection control unit that controls a urea solution injection quantity according to a NO x concentration value detected by the NO x sensor, wherein the SCR system comprises: a pressur…
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- F01N3/2066Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9080489B2 cover?
- A Selective Catalytic Reduction (“SCR”) system that can detect a NO x concentration accurately irrespective of an operation state of an engine is provided. The SCR system including: an SCR device; a dosing valve; a NO x sensor; and an urea solution injection control unit.
- Who is the assignee on this patent?
- Onodera Takao, Hara Shinji, Kamijyou Tomoyuki, and 1 more
- 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 Jul 14 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).