Cummins Filtration Ip, Inc.

Fleetguard, Inc.

Microspun Products Ltd.

Eric A Janikowski

Barry Mark Verdegan

Christopher E Holm

Scott W Schwartz

William C Haberkamp

Mark V Holzmann

Jerald J Moy

Murray R Schukar

Mark A Terres

Kyle Ellison

Huanling Liu

Brian W Schwandt

Mark T Wieczorek

Scott P Heckel

Tadeusz Jaroszczyk

Arun P Janakiraman

Michael J Connor

Kurt M A Badeau

Orvin D Kendall

Scott Gerald Manke

Robert A Bannister

Jeffrey S Morgan

Kwok-Lam Ng

Budi Antony

Jacek Bodasiński

Witalis Rumiński

Leon Gradoń

Steven R Sankbeil

Ismail C Bagci

Kevin C South

Z Gerald Liu

Roger L Zoch

Chad M Thomas

Hendrik Amirkhanian

Larry T Gunderson

Mark P Adams

Himani Deshpande

Melvin Douglas McCormick

Kenneth M Tofsland

Anna Balazy

Thomas A Fosdal

Eric J Rego

Jason E Dorgan

Robert E Muse

Melvin Rice

Eric Louis Schroeder

Caryn J Christianson

Mark C Schroeder

Nathan Shafer

Aiden Kim

A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is less than 2.

Composite filter media with multiple fiber structures including nanofibers

Disclosed here is a composite filter media having at least one nanofiber layer bonded to a substrate layer, the at least one nanofiber layer optionally having a plurality of nanofibers having a geometric mean diameter of less than or equal to 0.5 &#x3bc;m, the at least one nanofiber layer having a thickness of about 1-100 &#x3bc;m.

Nanofiber filter media for high performance applications

Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 &#x3bc;m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nano fiber layer to the geometric mean diameter of fibers at the downstream face of the nano fiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.

Gradient nanofiber filter media

Cleanable filters and methods of cleaning filters are described in the present application. The cleanable air filter includes a housing and a filter element installed in the housing. The filter element is configured to filter an operating fluid in a given application. The filter element is cleanable in-situ in the installed condition in the housing. The cleanable air filter further includes a cleaning fluid applicator configured to apply a cleaning fluid to the filter element while the filter element is in the installed condition in the housing such that the filter element is cleanable without being removed from the filter housing.

Cleanable filter

Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 &#x3bc;m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.

Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layer of media material comprising bicomponent fibers.

Composite filter media utilizing bicomponent fibers

A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.

Filter and filter media having reduced restriction

Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layers of media material comprising bicomponent fibers.

Composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 &#x3bc;m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.

A filter is described that is combined with a device to address vibrations. Such vibrations can adversely impact filter performance. An engine system including this combination is also described.

Filter system with vibration dampening

A coalescer includes fibrous media capturing droplets of the dispersed phase, coalescingly growing the droplets into larger drops which further coalesce and grow to form pools that drain, and adapted to reduce pressure drop thereacross by increasing dispersed phase drainage therefrom.

Reduced pressure drop coalescer

A pleated filter element extends axially between an upstream inlet and a downstream outlet along a plurality of axially extending bend lines forming axial flow channels. The bend lines taper in a transverse direction and define a plurality of axially elongated tetrahedron channels facing oppositely to each other.

Pleated filter element with tapering bend lines

Growing community of inventors

Jefferson, WI, United States of America

Eric A Janikowski