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公开(公告)号：US20210239022A1
公开(公告)日：2021-08-05
申请号：US17222274
申请日：2021-04-05
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Corine Chauvin
Abstract: A dosing and mixing arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
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公开(公告)号：US10294841B2
公开(公告)日：2019-05-21
申请号：US14990434
申请日：2016-01-07
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Corine Chauvin
Abstract: A dosing and mixing arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
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公开(公告)号：US11773763B2
公开(公告)日：2023-10-03
申请号：US17642620
申请日：2020-06-30
Applicant: Donaldson Company, Inc.
Inventor： Corine Chauvin , Korneel De Rudder , Anil C. Agar , Bart Schellens
CPC classification number: F01N3/2892 , F01N3/2066 , F01N2240/20 , F01N2470/02 , F01N2470/04 , F01N2470/08 , F01N2470/24 , F01N2610/02 , F01N2610/1453
Abstract: A dosing and mixing assembly for an exhaust aftertreatment device includes a conduit arrangement defining overlapping, coaxial flow paths that join at a common flow path. The conduit arrangement defines a mixing region upstream of the overlapping, coaxial flow paths, an impact region at the overlapping, coaxial flow paths, and a merge region where the coaxial flow paths join. The outer of the coaxial flow paths insulates the inner of the flow paths at least as the impact region. Reactant can be dispensed into the inner flow path along a spray path that intersects the impact region of the conduit arrangement. A spray protector can be provided at or upstream of the mixer to inhibit swirling of reactant at the doser nozzle.
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公开(公告)号：US09598999B2
公开(公告)日：2017-03-21
申请号：US14395632
申请日：2013-04-19
Applicant: DONALDSON COMPANY, INC.
Inventor： Korneel De Rudder , Stephane Le Merdy , Bart Schellens , Nic Degelin , Corine Chauvin , Jeffrey Curtis Gillen
CPC classification number: F01N3/2892 , B01D53/9431 , B01D2255/915 , B01F3/04049 , B01F5/0057 , B01F5/0451 , B01F2005/0088 , B01F2005/0091 , F01N3/00 , F01N3/035 , F01N3/2066 , F01N3/28 , F01N2240/20 , F01N2470/18 , F01N2570/04 , F01N2570/10 , F01N2570/14 , F01N2610/02 , Y02T10/24 , Y10T137/87652
Abstract: An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. The mixing can be achieved at least in part by a swirl structure and contaminant removal can include NOx reduction.
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公开(公告)号：US20160115844A1
公开(公告)日：2016-04-28
申请号：US14990434
申请日：2016-01-07
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Corine Chauvin
CPC classification number: F01N3/2066 , B01F3/04049 , B01F5/0062 , B01F2005/0091 , F01N3/36 , F01N13/08 , F01N2470/02 , F01N2470/18 , F01N2610/02 , F01N2610/1453 , Y02T10/24
Abstract: A dosing and mixing arrangement is disclosed herein. The arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
Abstract translation: 本文公开给药和混合装置。 该装置包括沿其长度具有恒定直径的混合管。 混合管的至少第一部分包括多个孔。 该装置还包括用于使排气流沿着沿着混合管的中心轴线延伸至少270度的流动路径的一个方向在排出流向混合管的第一部分外部旋转的旋转结构。 该排列构造成使得当排气沿着流动路径旋转时，排气通过该孔进入混合管的内部。 通过孔进入混合管内部的废气具有切向部件，该切向部件使排气围绕混合管内部的中心轴旋转。 该装置还包括用于将反应物分配到混合管内部的加料器。
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Patent Agency Ranking
公开(公告)号：US11608764B2
公开(公告)日：2023-03-21
申请号：US17222274
申请日：2021-04-05
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Corine Chauvin
Abstract: A dosing and mixing arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
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公开(公告)号：US11465105B2
公开(公告)日：2022-10-11
申请号：US16964923
申请日：2019-01-25
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Bart Schellens , Corine Chauvin , Francisco Silva
IPC: F01N3/28 , B01F23/21 , B01F25/43 , B01F23/213 , F01N3/20 , B01F25/314 , B01F25/431 , B01F25/433
Abstract: A mixing device includes a mixing cavity having a partially open wall and a closed wall. In certain examples, the partially open wall and the closed wall are two separately formed pieces. A downstream side of the mixing device is shaped so as to define a helicoidal groove for circumferentially guiding gas from an outlet opening of the mixing cavity in a downstream direction. An injector sprays reactant into the mixing cavity.
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公开(公告)号：US20150132192A1
公开(公告)日：2015-05-14
申请号：US14395632
申请日：2013-04-19
Applicant: DONALDSON COMPANY, INC.
Inventor： Korneel De Rudder , Stephane Le Merdy , Bart Schellens , Nic Degelin , Corine Chauvin
CPC classification number: F01N3/2892 , B01D53/9431 , B01D2255/915 , B01F3/04049 , B01F5/0057 , B01F5/0451 , B01F2005/0088 , B01F2005/0091 , F01N3/00 , F01N3/035 , F01N3/2066 , F01N3/28 , F01N2240/20 , F01N2470/18 , F01N2570/04 , F01N2570/10 , F01N2570/14 , F01N2610/02 , Y02T10/24 , Y10T137/87652
Abstract: An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. The mixing can be achieved at least in part by a swirl structure and contaminant removal can include NOx reduction.
Abstract translation: 公开了一种排气处理装置。 排气处理装置具有紧凑的构造，其包括集成的反应物计量，反应物混合和污染物去除/处理。 混合可以至少部分地通过涡旋结构实现，并且污染物去除可以包括NOx还原。
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公开(公告)号：US11767783B2
公开(公告)日：2023-09-26
申请号：US17624736
申请日：2020-07-01
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Anil C. Agar , Corine Chauvin , Bart Schellens
IPC: F01N3/28 , B01F25/313 , B01F25/431 , B01F23/213 , B01D53/94 , F01N3/20 , B01F25/00
CPC classification number: F01N3/2892 , B01D53/9418 , B01F23/2132 , B01F25/3131 , B01F25/4315 , F01N3/2066 , B01F2025/913 , B01F2025/931 , F01N2610/1453
Abstract: A spray/gas mixer includes a main body having a circumferential wall defining an inlet opening at one end and an outlet opening at another end; a divider baffle within the main body; a swirl duct having a first end adjacent to the wall and a second end extending to the divider baffle; an injector orifice at the first end of the swirl duct; a swirl promoting means; and a restrictor. The swirl promoting means is arranged between the divider baffle and the restrictor. Gas passing through the swirl promoting means is swirled around the first longitudinal axis (A) before passing through the restrictor. The restrictor is disposed between the swirl promoting means and the second end, forcing gas reaching it from an upstream side away from a peripheral region of the interior towards a center axis of the main body.
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公开(公告)号：US10968800B2
公开(公告)日：2021-04-06
申请号：US16395472
申请日：2019-04-26
Applicant: Donaldson Company, Inc.
Inventor： Korneel De Rudder , Corine Chauvin
Abstract: A dosing and mixing arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube.
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