Exhaust gas purification device
US-2015020484-A1 · Jan 22, 2015 · US
Exhaust purification device
US2016305296A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016305296-A1 |
| Application number | US-201415100670-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 17, 2014 |
| Priority date | Dec 18, 2013 |
| Publication date | Oct 20, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An exhaust purification device for purifying exhaust gas flowing in an exhaust gas flow passage of an engine includes: a cylindrical casing; a pipe that is disposed on a downstream side of the casing and inserted in the casing so as to extend in a direction substantially orthogonal to an axial direction of the casing, the pipe being provided with a through-hole communicating with the casing; and an injector configured to inject a reducing agent from an upstream end of the pipe into the pipe, in which a contracting flow passage portion narrowing in an axial direction of the pipe from an upstream side toward the downstream side is formed in the exhaust gas flow passage in the casing.
First claim
Opening claim text (preview).
1 . An exhaust purification device for purifying exhaust gas flowing in an exhaust gas flow passage of an engine, the exhaust purification device comprising: a cylindrical casing; a pipe that is disposed on a downstream side of the casing and inserted in the casing so as to extend in a direction substantially orthogonal to an axial direction of the casing, the pipe being provided with a through-hole communicating with the casing; and an injector configured to inject a reducing agent from an upstream end of the pipe into the pipe, wherein a contracting flow passage portion narrowing in an axial direction of the pipe from an upstream side toward the downstream side is formed in the exhaust gas flow passage in the casing. 2 . The exhaust purification device according to claim 1 , wherein the through-hole is formed at a part the pipe axial direction of an inserted portion of the pipe in the casing, and the contracting flow passage portion narrows toward the through-hole. 3 . The exhaust purification device according to claim 1 , wherein, the contracting flow passage portion is formed by an inner wall surface of the casing. 4 . The exhaust purification device according to claim 1 , wherein at least a part of the contracting flow passage portion is formed by a baffle plate mounted on an inner wall surface of the casing. 5 . The exhaust purification device according to claim 1 , further comprising a swirling baffle plate configured to guide the exhaust gas to the through-hole so as to generate a swirl flow in the pipe.
Assignees
Inventors
Classifications
Exhaust flow directors or the like, e.g. upstream of catalytic device · CPC title
by means of filters · CPC title
the purifying devices are arranged in a single housing · CPC title
a flow director or deflector · CPC title
Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow · CPC title
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- What does patent US2016305296A1 cover?
- An exhaust purification device for purifying exhaust gas flowing in an exhaust gas flow passage of an engine includes: a cylindrical casing; a pipe that is disposed on a downstream side of the casing and inserted in the casing so as to extend in a direction substantially orthogonal to an axial direction of the casing, the pipe being provided with a through-hole communicating with the casing; an…
- Who is the assignee on this patent?
- Hino Motors Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N3/106. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Oct 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).