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公开(公告)号：US20230042655A1
公开(公告)日：2023-02-09
申请号：US17972136
申请日：2022-10-24
Applicant: Donaldson Company, Inc.
Inventor： John H. CHASTAIN, JR. , Daryl L. QUAM , Eric P. O'Hara
IPC: B01D45/16 , F02M35/02 , F02M35/022
Abstract: A precleaner arrangement for separating a portion of entrained material from air flow air entering an engine air cleaner. The precleaner arrangement includes a precleaner housing and at least a first flexible air deflection vane with a fixed portion secured to the precleaner housing and a deflectable portion. The deflectable portion includes a curved section extending from the fixed portion and a tail section extending from the curved section. The deflectable portion is configured to deflect in response to a sufficient air flow rate change through the precleaner arrangement, in use. Some arrangements will also include a second stage, outlet vane assembly.
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公开(公告)号：US20230021769A1
公开(公告)日：2023-01-26
申请号：US17776799
申请日：2021-04-02
Applicant: Donaldson Company, Inc.
Inventor： Derek O. Jones , Klenton T. Willis
Abstract: This disclosure describes a filtration composite that includes multiple layers of filtration media. In some embodiment, the filtration composite is preferably substantially glass-free or glass-free. When the composite is glass-free or substantially glass-free, the composite preferably exhibits capacity and efficiency comparable to or better than similar glass-containing filtration media. The composite includes a first nonwoven filtration medium including bicomponent fibers, efficiency fibers having a fiber diameter in a range of 1 micron to 5 microns, and microfibrillated fiber; an optional second nonwoven filtration medium; and a third nonwoven filtration medium including efficiency fibers having a fiber diameter of at least 0.1 micron and less than 1 micron.
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公开(公告)号：US20230018302A1
公开(公告)日：2023-01-19
申请号：US17776956
申请日：2021-04-02
Applicant: Donaldson Company, Inc.
Inventor： Derek O. Jones , Klenton T. Willis
Abstract: This disclosure describes a filtration medium that is preferably glass-free or substantially glass-free. In some embodiments, the filtration medium preferably exhibits capacity and efficiency comparable to or better than similar glass-containing filtration media. The filtration medium includes bicomponent fibers, efficiency fibers (for example, PET fibers), and microfibrillated fibers. The efficiency fibers include fibers having a fiber diameter in a range of 1 micron to 5 microns and fibers having a fiber diameter of at least 0.1 micron and less than 1 micron.
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公开(公告)号：US20230001521A1
公开(公告)日：2023-01-05
申请号：US17782517
申请日：2020-12-03
Applicant: Donaldson Company, Inc.
Inventor： Jacob C. Savstrom
Abstract: A fume extractor has an extractor housing (110, 210) defining an outlet (106, 206). A hose (120, 220) is coupled to the extractor housing that defines a first inlet (102, 202). A diffusion plate (130, 230) is coupled to the extractor housing that defines a plurality of openings (132, 232) cumulatively defining a second inlet (104, 204). A fan (280, 530) is disposed in the extractor housing, where the fan configured to connect each of the first inlet and the second inlet to the outlet. A first supporting surface (160) is opposite the diffusion plate relative to the extractor housing and a second supporting surface (170) at least 80° to the diffusion plate, where the first supporting surface and the second supporting surface are configured to selectively rest on a planar surface. The fume extractor defines a hose channel (140) configured to selectively receive the hose.
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公开(公告)号：US20220395768A1
公开(公告)日：2022-12-15
申请号：US17830195
申请日：2022-06-01
Applicant: Donaldson Company, Inc.
Inventor： Davis B. Moravec , Daryl L. Quam , Jacob A. Nelson , Bradly G. Hauser , Matthew P. Goertz , Timothy J. Streed , Connor J. Colling
Abstract: Some embodiments of the technology disclosed herein relate to a system having a hydrodynamic separator element defining an element inlet and an element outlet. The element outlet has a first element outlet and a second element outlet. The hydrodynamic separator element has a plurality of curved microfluidic channels in fluid communication. Each of the plurality of microfluidic channels are arranged to operate in parallel. Each microfluidic channel defines a channel inlet downstream of the element inlet and a channel outlet having a first channel outlet upstream of the first element outlet and a second channel outlet upstream of the second element outlet. A flow characteristic sensor is in sensing communication with the separator element. A controller is in data communication with the flow characteristic sensor, where the controller is configured to provide a first alert upon the flow characteristic being outside a first threshold.
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Patent Agency Ranking
公开(公告)号：US20220323896A1
公开(公告)日：2022-10-13
申请号：US17614175
申请日：2020-05-26
Applicant: DONALDSON COMPANY, INC.
Inventor： Nicholas J. Stanley
Abstract: A cylindrical filter element including a central longitudinal axis extending along a height of the filter element, a core element extending along at least a portion of the height of the filter element and having a convex curved central portion extending from a first end to a second end to define a width of the core element, wherein the convex curved central portion has a maximum height through the central longitudinal axis that is larger than a height of at least one of the first and second ends, and filter material including a plurality of pleats extending radially from an outer periphery of the core element, wherein an outer cylindrical periphery of the filter material is defined by an outer pleat tip of each of the plurality of radially extending pleats, and wherein an inner pleat tip of each radially extending pleat is adjacent to the core element.
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公开(公告)号：US20220297041A1
公开(公告)日：2022-09-22
申请号：US17694481
申请日：2022-03-14
Applicant: Donaldson Company, Inc.
Inventor： David V. Gutman , Massimo Movia , Eric W. E. Collin , Steven A. Johnson , Benny J. B. Mombaerts , Gabriel J. Safarian , David L. Van Eylen , Iman Vezvaei
Abstract: Filter bags, filter bag support assemblies, and filter bag assemblies are described herein. The filter bags, filter bag support assemblies, and filter bag assemblies may be used in air filter systems to remove particulate matter from air or other gases. Methods of using the air filter systems and methods of assembling the filter bag assemblies are also described.
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公开(公告)号：US11413563B2
公开(公告)日：2022-08-16
申请号：US16113807
申请日：2018-08-27
Applicant: Donaldson Company, Inc.
Inventor： Gary J. Rocklitz
Abstract: Pleated filtration media, media packs, filter elements, and methods for filtering fluid are provided which contain three dimensional tapered flutes in the media surface, the flutes configured to improve filter performance. In certain embodiments the flutes have defined peaks that reduce masking between adjacent pleats, the flutes have ridges along their length to modify flute cross sectional geometry, and/or the flutes provide for volume asymmetry across the media.
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公开(公告)号：US20220241716A1
公开(公告)日：2022-08-04
申请号：US17672076
申请日：2022-02-15
Applicant: Donaldson Company, Inc.
Inventor： Thomas D. Raether
Abstract: A filter element includes a media pack of Z-media having first and second opposite flow faces and a side wall extending between the first and second flow face. A gasket is secured to the side wall. The gasket has a sealing portion and an attachment portion. The sealing portion has a flat surface at least one inch long and is located between being planar with and 0.5 inches recessed from the first flow face, inclusive. The filter element can be used in a dust collector.
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公开(公告)号：US20220235687A1
公开(公告)日：2022-07-28
申请号：US17610355
申请日：2020-05-08
Applicant: Donaldson Company, Inc.
Inventor： Derek M. LARSEN , Todd R. TAUBERT , Nathaniel I. IVERSON , William J. BAIRD , Mark T. BRANDL , David D. ROWLEY
Abstract: An exhaust treatment device includes a dosing and mixing assembly having a wire mesh puck. A retaining arrangement holds the mesh puck and maintains the mesh puck in an axially compressed state. The compressive force may be sufficient to inhibit rotation of the wire mesh. A peripheral side of the wire mesh is allowed to float while edges of the axial ends are trapped between at least two stop members of the retaining arrangement.
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