公开(公告)号：US20240390834A1

公开(公告)日：2024-11-28

申请号：US18792456

申请日：2024-08-01

Applicant: Integrated Global Services Inc.

Inventor： Jefferson Landers Shelton ,  Mark Braithwaite, JR. ,  Jan Albert Schutte ,  Morgan Watson

IPC: B01D46/62 ,  B01D39/10 ,  B01D46/10 ,  B01D46/69 ,  B01D46/71 ,  B01D51/00 ,  B01D53/86

Abstract: A system, method, and apparatus for ameliorating deposits in selective catalytic reduction systems for the reduction of nitrogen oxide emissions in steam methane reformers. The system includes positioning a dual stage refractory particulate (RP) filter placed in an upstream airflow from a Selective Catalytic Reduction System (SCRS). The first stage is formed of a perforated steel plate with a second stage formed of a wire mesh screen. The system may employ air cannons to clean each of the first stage and the second stages.

公开(公告)号：US20240359126A1

公开(公告)日：2024-10-31

申请号：US18765775

申请日：2024-07-08

Applicant: Donaldson Company, Inc.

Inventor： Thomas D. Raether ,  Brian Zauner ,  Jim C. Rothman

IPC: B01D46/88 ,  B01D46/00 ,  B01D46/10 ,  B01D46/52 ,  B01D46/58 ,  B01D46/71

CPC classification number: B01D46/88 ,  B01D46/0005 ,  B01D46/10 ,  B01D46/525 ,  B01D46/58 ,  B01D46/71 ,  B01D2271/027 ,  B01D2275/10 ,  B01D2275/201 ,  B01D2275/206 ,  B01D2275/208 ,  Y10T29/4973

Abstract: A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. The elements are usable in a dust collector having a dirty air inlet, a clean air outlet, and a tubesheet dividing between an unfiltered and a clean air volume. An element is removably mounted and sealed within the tube sheet. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member. A method of servicing a dust collector includes removing a first filter element from the tube sheet in the housing, and then sealing a second filter element against the tube sheet by orienting at least one projection extending from a plane of the tube sheet into a channel defined by a gasket member secured to the second filter element. An axial force is exerted to form a seal between the gasket member and the tube sheet.

公开(公告)号：US12128343B2

公开(公告)日：2024-10-29

申请号：US17289765

申请日：2019-10-09

Applicant: HENGST SE

Inventor： Sieghard Pietschner ,  Roland Edlerherr ,  Moritz Dorschel

IPC: B01D46/00 ,  B01D46/24 ,  B01D46/42 ,  B01D46/44 ,  B01D46/58 ,  B01D46/71

CPC classification number: B01D46/0086 ,  B01D46/0049 ,  B01D46/2411 ,  B01D46/429 ,  B01D46/446 ,  B01D46/448 ,  B01D46/58 ,  B01D46/71 ,  B01D2273/30

Abstract: The invention relates to a filter arrangement comprising a filter cartridge, having an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter, a fan for conveying air to be purified first through the wall and subsequently through the opening of the filter cartridge, and a purification device, which is configured to convey a jet of compressed air through the opening into the filter cartridge and through the wall out of the filter cartridge, for conveying dirt away from an outer wall of the wall. The invention also relates to a method for detecting a leak of a filter cartridge, wherein the filter cartridge has an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter.

公开(公告)号：US20240307810A1

公开(公告)日：2024-09-19

申请号：US18669837

申请日：2024-05-21

Applicant: Donaldson Company, Inc.

Inventor： Stephan A. Graham ,  Steven A. Johnson

IPC: B01D46/71 ,  B01D46/04 ,  B01D46/46

CPC classification number: B01D46/71 ,  B01D46/04 ,  B01D46/46

Abstract: A filter system includes a tube sheet defining a plurality of holes in fluid communication with a plurality of filter bags. The system also includes a rotating assembly having an arm defining one or more outlets to provide pressurized air from an air source toward the tube sheet in response to pulsing one or more actuators. A motor is operably coupled to the stationary assembly and the rotating assembly to rotate the arm about an axis at a preset rotational speed. A controller is operably coupled to the motor and the one or more actuators to provide pulse commands based on a pulse interval and a jog interval. The pulse interval and the jog interval may be determined based on a measured rotational speed of the arm, which may be redetermined during operation.

公开(公告)号：US20240100465A1

公开(公告)日：2024-03-28

申请号：US17769063

申请日：2020-10-13

Applicant: Herding GmbH Filtertechnik

Inventor： Walter Herding ,  Urs Herding ,  Egid Koller ,  Dino Bethke ,  Stefan Hajek ,  Christoph Weih

IPC: B01D46/71 ,  B01D46/00 ,  B01D46/24 ,  B01D46/44 ,  B01D46/62

CPC classification number: B01D46/71 ,  B01D46/0006 ,  B01D46/2411 ,  B01D46/44 ,  B01D46/62 ,  B01D2267/60 ,  B01D2267/70 ,  B01D2275/205

Abstract: A filter device including at least one filter element adapted to filter a raw fluid and having a raw fluid side and a clean fluid side, the filter element having a clean fluid outlet arranged on the clean fluid side and extending in a first plane, at least one clean fluid collecting channel into which the clean fluid outlet opens; at least one compressed-air cleaning-off device adapted to generate a pressure pulse for cleaning-off foreign matter adhering to the filter element and to conduct the same through the clean fluid outlet to the filter element, wherein the compressed-air cleaning-off device is adapted to conduct the pressure pulse at least approximately along the first plane to the clean fluid outlet, wherein the compressed-air cleaning-off device comprises a compressed-air supply channel operationally coupled to a clean fluid collecting channel outlet and adapted to charge the clean fluid collecting channel with pressure pulses.

公开(公告)号：US20230405508A1

公开(公告)日：2023-12-21

申请号：US17844683

申请日：2022-06-20

Applicant: William L McLean, Jr.

Inventor： William L McLean, Jr.

IPC: B01D46/71 ,  B01D46/72 ,  B01D46/04

CPC classification number: B01D46/71 ,  B01D46/72 ,  B01D46/04

Abstract: The air filter cleaning device provides a tool for efficiently cleaning an air filter. the air filter cleaning device includes an elongated coil extending between a first end and a second end. The coil includes a surface that defines a hollow interior extending between first end and second end such that the coil is configured to be tubular. the elongated straight portion is connected with the actuator via the swivel joint. The coil is placed into the cavity of the air filter. The actuator is actuated, thereby causing air to enter the first end, flow through the interior and exit the opening. The pressure of the air exiting the opening causes the coil to rotate relative to the air filter. As the coil rotates, the pressure of the air pushes dust and/or debris from the porous material of the air filter.

公开(公告)号：US11826691B2

公开(公告)日：2023-11-28

申请号：US16893910

申请日：2020-06-05

Applicant: Donaldson Company, Inc.

Inventor： Fred Wahlquist ,  Thomas R. Olson ,  Jason DeGuelle

IPC: B01D46/00 ,  B01D46/71 ,  B01D46/48 ,  B01D46/24 ,  F02M35/08

CPC classification number: B01D46/71 ,  B01D46/0005 ,  B01D46/0042 ,  B01D46/0045 ,  B01D46/0046 ,  B01D46/2411 ,  B01D46/48 ,  F02M35/086

Abstract: Assemblies, features, and techniques for pulse jet air cleaner assemblies and their operation are described. Techniques described include methodology and equipment for preferred pulse jet sequencing and operation.

公开(公告)号：US20230372859A1

公开(公告)日：2023-11-23

申请号：US18231012

申请日：2023-08-07

Applicant: Donaldson Company, Inc.

Inventor： Thomas R. Olson ,  Fred H. Wahlquist ,  David W. Mulder ,  Robert R. Levac ,  Daniel E. Adamek

IPC: B01D46/71 ,  B01D46/24 ,  B01D46/44 ,  B01D46/46 ,  F02M35/024 ,  F02M35/08 ,  F02M35/10 ,  B01D46/64

CPC classification number: B01D46/71 ,  B01D46/2411 ,  B01D46/446 ,  B01D46/46 ,  F02M35/02416 ,  F02M35/086 ,  F02M35/10144 ,  B01D46/64 ,  B01D2279/60

Abstract: A pulse ring assembly for air cleaner systems that is adapted to produce a pulse ring of gas to clean a filter element. The air cleaner system may include an outer tube and an inner tube configured to receive the inner tube such that at least a portion of an interior surface of the outer tube faces at least a portion of an exterior surface of the inner tube. The outer tube may include a pulse port extending between the interior and exterior surfaces of the outer tube into an outer tube passageway. Filtered air may be configured to flow from a first filter cartridge, through the outer and inner tubes, and to an engine intake. The system may also include a pulse jet apparatus in fluid communication with the pulse port of the outer tube and configured to direct gas through the pulse port towards the first filter cartridge.

公开(公告)号：US11779872B2

公开(公告)日：2023-10-10

申请号：US17021283

申请日：2020-09-15

Applicant: MAC Valves, Inc.

Inventor： Ray Jenkins ,  Matthew Neff ,  Jeffrey Simmonds ,  Kevin C. Williams

IPC: B01D46/42 ,  B01D46/71 ,  B01D46/04 ,  B01D46/48 ,  F16K31/124 ,  F16K31/122

CPC classification number: B01D46/4272 ,  B01D46/71 ,  B01D46/04 ,  B01D46/48 ,  F16K31/124 ,  F16K31/1221

Abstract: A pulse valve assembly including a main valve and a pilot valve that selectively actuates the main valve.

公开(公告)号：US11745133B2

公开(公告)日：2023-09-05

申请号：US17412685

申请日：2021-08-26

Applicant: Donaldson Company, Inc.

Inventor： Thomas D. Raether

IPC: B01D46/58 ,  B01D46/42 ,  B01D46/00 ,  B01D46/24 ,  B01D46/60 ,  B01D46/71

CPC classification number: B01D46/58 ,  B01D46/0005 ,  B01D46/0043 ,  B01D46/2411 ,  B01D46/4281 ,  B01D46/60 ,  B01D46/71

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.