公开(公告)号：US11173442B2

公开(公告)日：2021-11-16

申请号：US16575519

申请日：2019-09-19

Applicant: Donaldson Company, Inc.

Inventor： Bruce Boehrs ,  Paul Wendt

IPC: B01D46/52 ,  B01D46/10 ,  F02M35/024 ,  B01D46/00

Abstract: An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes facing media secured to fluted media. A preferred projection/receiver arrangement is described. Also, a useful seal arrangement is described. Air cleaner assemblies, methods of assembly and use are also provided.

公开(公告)号：US20210339178A1

公开(公告)日：2021-11-04

申请号：US17376788

申请日：2021-07-15

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Richard J. Osendorf ,  Benny K. Nelson ,  Joseph A. Einberger

IPC: B01D46/00 ,  B01D46/42 ,  B01D46/24

Abstract: An air cleaner assembly is disclosed, along with related methods. In one aspect, the air cleaner assembly has a housing including a housing body and a removable cover that together define an interior volume for holding a filter cartridge. The housing body can include a first plurality of lugs, wherein each of the first plurality of lugs has a first engagement surface disposed at a first angle that is oblique to a rotational plane of the cover. A second plurality of lugs can be provided on the cover, wherein each of the second plurality of lugs has a second engagement surface disposed at the first angle. A lock mechanism can also be provided that is disposed on the cover, wherein the lock mechanism includes a lock member axially movable between a locked position and an unlocked position to selectively secure the cover to the housing body.

公开(公告)号：US11123671B2

公开(公告)日：2021-09-21

申请号：US16722259

申请日：2019-12-20

Applicant: Donaldson Company, Inc.

Inventor： Thomas D. Raether

IPC: B01D46/00 ,  B01D46/42 ,  B01D46/24

Abstract: Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.

公开(公告)号：US11117677B2

公开(公告)日：2021-09-14

申请号：US15964774

申请日：2018-04-27

Applicant: DONALDSON COMPANY, INC.

Inventor： Mark E. Boyce ,  Matthew A. Brown

IPC: B64D33/02 ,  B01D46/00 ,  B64D45/00 ,  B64D27/02 ,  G01N15/08 ,  F02C7/052 ,  F02C7/05 ,  B64C27/04

Abstract: A system and method of compensating for airspeed when measuring pressure drop across a filter system on an aircraft may include a pressure compensator, an internal pressure sensor, and an external pressure sensor. A filter media may be located around a housing such that air flows through the filter media into a clean air space defined by the filter media and the housing. The pressure compensator may be located outside of the clean air space and within an airstream of the aircraft. The internal pressure sensor may be configured to measure an internal pressure that varies with airspeed and the external pressure sensor may be located on the pressure compensator to measure an external pressure. The external pressure sensor may be positioned such that the external pressure varies according to a known relationship relative to the internal pressure as the airspeed of the aircraft changes.

公开(公告)号：US20210280941A1

公开(公告)日：2021-09-09

申请号：US17192283

申请日：2021-03-04

Applicant: Donaldson Company, Inc.

Inventor： Aflal Rahmathullah ,  Daniel J. Dotzler ,  James P. Moorman ,  Jacob L. Sanders

IPC: H01M50/383 ,  H01M50/325 ,  H01M50/30

Abstract: A battery housing has a plurality of housing sidewalls defining an enclosure, where a first housing sidewall of the plurality of housing sidewalls defines a plurality of openings cumulatively defining a valve opening. The housing defines a valve coupling structure around the valve opening.

公开(公告)号：US11110406B2

公开(公告)日：2021-09-07

申请号：US16825586

申请日：2020-03-20

Applicant: Donaldson Company, Inc.

Inventor： Korneel De Rudder ,  Stéphane Le Merdy

IPC: B01F3/04 ,  B01F5/00 ,  B01F5/04 ,  F01N3/20 ,  F01N3/28 ,  F01N3/08 ,  F01N3/035

Abstract: A method for causing exhaust gas flow to flow at least 270 degrees in a first direction about a perforated tube using a baffle plate having a main body with a plurality of flow-through openings and a plurality of louvers positioned adjacent to the flow-through openings. The method includes deflecting a first portion of the exhaust gas flow with the main body of the baffle plate. The method also includes allowing a second portion of the exhaust gas flow to flow through the flow-through openings of the baffle plate. The method also deflects the second portion of the exhaust gas flow at a downstream side of the main body with the louvers hereby causing the second portion of the exhaust gas flow to flow in the first direction about the perforated tube.

公开(公告)号：US20210268411A1

公开(公告)日：2021-09-02

申请号：US17325424

申请日：2021-05-20

Applicant: Donaldson Company, Inc.

Inventor： Gunter VAN DE POEL ,  Lukasz HANDZLIK ,  Joost ROELS ,  Erwin VERBELEN ,  Luca GHISU

IPC: B01D35/16 ,  B01D29/33 ,  B01D35/153 ,  B01D35/30

Abstract: The disclosure pertains to a filter assembly comprising a base, a cover, and a cylindrical filter element, the base being adapted to receive the cover with the filter element inserted therein. The base has an outlet orifice with a first sealing zone, and a drainage orifice with a second sealing zone. The filter element comprises an outlet tube with a first sealing element, and a drainage plug with a second sealing element, said outlet tube and said drainage plug being positioned to sealingly engage with said first sealing zone and said second sealing zone, respectively, when the base receives the cover. An axial distance (A) between the first sealing element and the second sealing element is different from an axial distance (B) between an end of the first sealing zone and an end of the second sealing zone facing the filter element. The present disclosure also pertains to a filter element for use in such a filter assembly.

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

IPC: F01N3/20 ,  B01F3/04 ,  B01F5/00 ,  F01N3/36 ,  F01N13/08

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.

公开(公告)号：US20210213401A1

公开(公告)日：2021-07-15

申请号：US17216159

申请日：2021-03-29

Applicant: Donaldson Company, Inc.

Inventor： Matthew S. WHITTEN ,  Bruce Bernard HOPPENSTEDT

IPC: B01F5/04 ,  B01F5/00 ,  B01F3/04 ,  F01N3/20

Abstract: Dosing and mixing exhaust gas includes directing exhaust gas towards a periphery of a mixing tube that is configured to direct the exhaust gas to flow around and through the mixing tube to effectively mix and dose exhaust gas within a relatively small area. Some mixing tubes include a slotted region and a non-slotted region. Some mixing tubes include a louvered region and a non-louvered region. Some mixing tubes are offset within a mixing region of a housing.

公开(公告)号：US20210205752A1

公开(公告)日：2021-07-08

申请号：US16650338

申请日：2018-09-25

Applicant: Donaldson Company, Inc.

Inventor： Mark A. Sala

IPC: B01D46/52

Abstract: The technology disclosed herein generally relates to fluted filter assemblies, where flutes formed in the filter media extend from a first flow face of the filter assembly to a second flow face of the filter assembly, where one flow face is an inlet and one flow face is the outlet. Some embodiments relate to first flute distance between the first flow face and the second flow face differing from a second flute distance between the first flow face and the second flow face by greater than 2 mm. In some embodiments at least one of the first flow face and the second flow face is non-planar, while in other embodiments at both of the first flow face and the second flow face are planar and non-parallel. Other embodiments are described.