公开(公告)号：US20240159178A1

公开(公告)日：2024-05-16

申请号：US18473855

申请日：2023-09-25

申请人： Donaldson Company, Inc.

发明人： Korneel DE RUDDER ,  Anil C. AGAR ,  Corine CHAUVIN ,  Bart SCHELLENS

IPC分类号： F01N3/28 ,  B01D53/94 ,  B01F23/213 ,  B01F25/313 ,  B01F25/431 ,  F01N3/20

CPC分类号： F01N3/2892 ,  B01D53/9418 ,  B01F23/2132 ,  B01F25/3131 ,  B01F25/431 ,  B01F25/4315 ,  F01N3/2066 ,  B01F2025/931

摘要： The invention pertains to a spray/gas mixer, comprising: a main body having a circumferential wall with a first longitudinal axis (A) and extending from a first end to a second end, the first end defining an inlet opening, the second end defining an outlet opening; a divider baffle inside the interior; a swirl duct within the interior along a second longitudinal axis (B), having one 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 arrangement. The swirl promoting means is arranged between the divider baffle and the restrictor arrangement, such that gas passing through the swirl promoting means is swirled around the first longitudinal axis (A) before passing through the restrictor. The restrictor arrangement 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.

公开(公告)号：US20220341357A1

公开(公告)日：2022-10-27

申请号：US17642620

申请日：2020-06-30

申请人： Donaldson Company, Inc.

发明人： Corine CHAUVIN ,  Korneel DE RUDDER ,  Anil C. AGAR ,  Bart SCHELLENS

IPC分类号： F01N3/28 ,  F01N3/20

摘要： 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.

公开(公告)号：US20220316382A1

公开(公告)日：2022-10-06

申请号：US17624736

申请日：2020-07-01

申请人： Donaldson Company, Inc.

发明人： Korneel DE RUDDER ,  Anil C. AGAR ,  Corine CHAUVIN ,  Bart SCHELLENS

IPC分类号： F01N3/28 ,  F01N3/20 ,  B01F23/213 ,  B01F25/313 ,  B01F25/431 ,  B01D53/94

摘要： 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.

公开(公告)号：US20220268192A1

公开(公告)日：2022-08-25

申请号：US17626336

申请日：2020-06-30

申请人： Donaldson Company, Inc.

发明人： Matthew S. WHITTEN ,  Todd R. TAUBERT ,  Derek M. LARSEN ,  Korneel DE RUDDER ,  Mark Thomas BRANDL

IPC分类号： F01N3/20 ,  F01N3/28 ,  F01N13/08

摘要： An aftertreatment device includes flow guides disposed within a dosing conduit. Exhaust enters through a perforated region of the dosing conduit and passes through the flow guides. The flow guides induce swirling or other turbulence to mix injected reactant with the exhaust gas. Various types of flow guides include cantilevered vanes, guide passageways, and louvered openings of a second conduit. Some types of flow guides induce localized mixing to inhibit deposit formation at the doser mounting unit. Other types of flow guides induce mixing downstream of the dosing conduit.

公开(公告)号：US20240183300A1

公开(公告)日：2024-06-06

申请号：US18535620

申请日：2023-12-11

申请人： Donaldson Company, Inc.

发明人： Matthew S. WHITTEN ,  Todd R. TAUBERT ,  Derek M. LARSEN ,  Korneel DE RUDDER ,  Mark Thomas BRANDL

IPC分类号： F01N3/20 ,  F01N3/28 ,  F01N13/08

CPC分类号： F01N3/206 ,  F01N3/28 ,  F01N13/08

摘要： An aftertreatment device includes flow guides disposed within a dosing conduit. Exhaust enters through a perforated region of the dosing conduit and passes through the flow guides. The flow guides induce swirling or other turbulence to mix injected reactant with the exhaust gas. Various types of flow guides include cantilevered vanes, guide passageways, and louvered openings of a second conduit. Some types of flow guides induce localized mixing to inhibit deposit formation at the doser mounting unit. Other types of flow guides induce mixing downstream of the dosing conduit.

公开(公告)号：US20240018890A1

公开(公告)日：2024-01-18

申请号：US18476989

申请日：2023-09-28

申请人： Donaldson Company, Inc.

发明人： Corine CHAUVIN ,  Korneel DE RUDDER ,  Anil C. AGAR ,  Bart SCHELLENS

IPC分类号： F01N3/28 ,  F01N3/20

CPC分类号： F01N3/2892 ,  F01N3/2066 ,  F01N2240/20 ,  F01N2470/04 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2470/02 ,  F01N2470/08 ,  F01N2470/24

摘要： 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.

公开(公告)号：US20210039056A1

公开(公告)日：2021-02-11

申请号：US16964923

申请日：2019-01-25

申请人： Donaldson Company, Inc.

发明人： Korneel DE RUDDER ,  Bart SCHELLENS ,  Corine CHAUVIN ,  Fransisco SILVA

IPC分类号： B01F3/04 ,  B01F5/04 ,  B01F5/06 ,  F01N3/28 ,  F01N3/20

摘要： 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.

公开(公告)号：US20170191399A1

公开(公告)日：2017-07-06

申请号：US15462354

申请日：2017-03-17

申请人： DONALDSON COMPANY, INC.

发明人： Korneel DE RUDDER ,  Stephane LE MERDY ,  Bart SCHELLENS ,  Nic DEGELIN ,  Corine CHAUVIN ,  Jeffrey Curtis GILLEN

IPC分类号： F01N3/28 ,  B01F3/04 ,  B01D53/94 ,  F01N3/20 ,  F01N3/035

CPC分类号： 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

摘要： 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.