公开(公告)号：US20220134271A1

公开(公告)日：2022-05-05

申请号：US17576230

申请日：2022-01-14

Applicant: Donaldson Company, Inc.

Inventor： Steven K. Campbell ,  Mark A. Sala

IPC: B01D46/52

Abstract: A two-stage separator system having a housing extending between a first end and a second end. The housing defines a housing inlet, a separator outlet towards the second end, and a filtration outlet on the first end. A filter assembly has a first sheet of filter media coupled to a second sheet of filter media mutually defining a plurality of flutes extending in an axial direction. The filter assembly defines an inlet flow face and an outlet flow face. The filter assembly is disposed in the housing and coupled to the housing about the filtration outlet such that the outlet flow face is in fluid communication with the filtration outlet. The inlet flow face of the filter assembly has an axial flow face length.

公开(公告)号：US20200306682A1

公开(公告)日：2020-10-01

申请号：US16833417

申请日：2020-03-27

Applicant: Donaldson Company, Inc.

Inventor： Steven K. Campbell ,  Mark A. Sala

IPC: B01D46/52

Abstract: A two-stage separator system having a housing extending between a first end and a second end. The housing defines a housing inlet, a separator outlet towards the second end, and a filtration outlet on the first end. A filter assembly has a first sheet of filter media coupled to a second sheet of filter media mutually defining a plurality of flutes extending in an axial direction. The filter assembly defines an inlet flow face and an outlet flow face. The filter assembly is disposed in the housing and coupled to the housing about the filtration outlet such that the outlet flow face is in fluid communication with the filtration outlet. The inlet flow face of the filter assembly has an axial flow face length.

公开(公告)号：US20240359124A1

公开(公告)日：2024-10-31

申请号：US18664910

申请日：2024-05-15

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D46/52

CPC classification number: B01D46/526 ,  B01D46/527

Abstract: Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.

公开(公告)号：US20230241542A1

公开(公告)日：2023-08-03

申请号：US18101909

申请日：2023-01-26

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D46/52

CPC classification number: B01D46/526 ,  B01D46/527

Abstract: Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.

公开(公告)号：US11224833B2

公开(公告)日：2022-01-18

申请号：US16833417

申请日：2020-03-27

Applicant: Donaldson Company, Inc.

Inventor： Steven K. Campbell ,  Mark A. Sala

IPC: B01D46/52

Abstract: A two-stage separator system having a housing extending between a first end and a second end. The housing defines a housing inlet, a separator outlet towards the second end, and a filtration outlet on the first end. A filter assembly has a first sheet of filter media coupled to a second sheet of filter media mutually defining a plurality of flutes extending in an axial direction. The filter assembly defines an inlet flow face and an outlet flow face. The filter assembly is disposed in the housing and coupled to the housing about the filtration outlet such that the outlet flow face is in fluid communication with the filtration outlet. The inlet flow face of the filter assembly has an axial flow face length.

公开(公告)号：US11986764B2

公开(公告)日：2024-05-21

申请号：US18101909

申请日：2023-01-26

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D53/02 ,  B01D46/52

CPC classification number: B01D46/526 ,  B01D46/527

Abstract: Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.

公开(公告)号：US11364462B2

公开(公告)日：2022-06-21

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.

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.

公开(公告)号：US11801468B2

公开(公告)日：2023-10-31

申请号：US17576230

申请日：2022-01-14

Applicant: Donaldson Company, Inc.

Inventor： Steven K. Campbell ,  Mark A. Sala

IPC: B01D46/52

CPC classification number: B01D46/527 ,  B01D46/526

Abstract: A two-stage separator system having a housing extending between a first end and a second end. The housing defines a housing inlet, a separator outlet towards the second end, and a filtration outlet on the first end. A filter assembly has a first sheet of filter media coupled to a second sheet of filter media mutually defining a plurality of flutes extending in an axial direction. The filter assembly defines an inlet flow face and an outlet flow face. The filter assembly is disposed in the housing and coupled to the housing about the filtration outlet such that the outlet flow face is in fluid communication with the filtration outlet. The inlet flow face of the filter assembly has an axial flow face length.

公开(公告)号：US11596893B2

公开(公告)日：2023-03-07

申请号：US16438183

申请日：2019-06-11

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D46/52

Abstract: Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.