Rotary plate valve systems
US-2020386332-A1 · Dec 10, 2020 · US
Systems and methods for dynamic control of filtration efficiency and fuel economy
US11708775B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11708775-B2 |
| Application number | US-202217701135-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2022 |
| Priority date | Sep 28, 2018 |
| Publication date | Jul 25, 2023 |
| Grant date | Jul 25, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A filtration assembly for removing particulate matter from exhaust gas produced by an engine, including: a first filter; a second filter positioned downstream of the first filter; and a valve including: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring. The valve is moveable between a closed position in which the plurality of first openings are misaligned with the plurality of second openings to prevent a fluid from flowing through the plurality of first and second openings, and an open position in which the second ring is rotated relative to the first ring such that the plurality of first openings are aligned with the plurality of second openings allowing the fluid to flow therethrough. A first end of the valve is positioned at an outlet of the first filter, and a second end of the valve is positioned at an inlet of the second filter. In the closed position of the valve, substantially all of the exhaust gas flows through the second filter, and in the open position of the valve, at least a portion of the exhaust gas flows through the valve and bypasses the second filter.
First claim
Opening claim text (preview).
What is claimed is: 1. A filtration assembly for removing particulate matter from exhaust gas produced by an engine, comprising: a first filter; a second filter positioned downstream of the first filter; and a valve comprising: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring, wherein the valve is moveable between a closed position in which the plurality of first openings are misaligned with the plurality of second openings to prevent a fluid from flowing through the plurality of first and second openings, and an open position in which the second ring is rotated relative to the first ring such that the plurality of first openings are aligned with the plurality of second openings allowing the fluid to flow therethrough, wherein a first end of the valve is proximate to an outlet of the first filter, and a second end of the valve is proximate to an inlet of the second filter, and wherein, in the closed position of the valve, substantially all of the exhaust gas flows through the second filter, and in the open position of the valve, at least a portion of the exhaust gas flows through the valve and bypasses the second filter. 2. The filtration assembly of claim 1 , further comprising a bypass conduit fluidly coupling an exhaust gas flow path downstream of the first filter and upstream of the second filter to an exhaust gas flow path downstream of the second filter, and wherein in the open position of the valve, at least the portion of the exhaust gas flows through the bypass conduit. 3. The filtration assembly of claim 2 , wherein a diameter of the second filter is smaller than a diameter of the first filter. 4. The filtration assembly of claim 3 , further comprising a housing, wherein the first filter, the second filter, and the valve are positioned within the housing such that the bypass conduit is defined between an outer surface of the second filter and an inner surface of the housing.
Assignees
Inventors
Classifications
- F01N3/032Primary
during filter regeneration only · CPC title
Filter condition indicators · CPC title
Bypass or safety valves · CPC title
by flow measuring · CPC title
by pressure measuring · CPC title
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Frequently asked questions
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- What does patent US11708775B2 cover?
- A filtration assembly for removing particulate matter from exhaust gas produced by an engine, including: a first filter; a second filter positioned downstream of the first filter; and a valve including: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring. The valve is moveable between a closed po…
- Who is the assignee on this patent?
- Cummins Emission Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification F01N3/032. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jul 25 2023 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).