Cummins Filtration IP, Inc.

Nelson Industries, Inc.

Fleetguard, Inc.

Robert A Bannister

Scott W Schwartz

Mark V Holzmann

Gregory K Loken

Peter K Herman

Michael J Connor

Stephen L Fallon

Scott Gerald Manke

Jessie Alan Knight

Ismail C Bagci

Zemin Jiang

Arun P Janakiraman

Mark J Johnson

Ted S Loftis

Christopher E Holm

Brian W Schwandt

Wassem Abdalla

Michael R Furseth

Gregory W Hoverson

Eric A Janikowski

Abhijit Shimpi

Jim L Alonzo

Matthew Louison

Kelly Ann Detra

Thomas J Braun

Kent Jeffrey Kallsen

Mark T Wieczorek

Charles W Hawkins

Gerard Malgorn

Chad M Thomas

Jianhua Wang

Jerald J Moy

Jeffrey A Husband

Ken Tofsland

Joel D Roltgen

Jeffrey A Rech

Jason A Scherck

Kaarthik Venkataraman

John C Lukasavitz

Aaron M Wells

Jeremiah Cupery

Dane P Miller

Miao Li

Brian M Palmer

Karthik Kothakota

Sean M Grabein

Yashpal Subedi

Daniel Potratz

Joshua Luther Young

Budi Antony

Mano Raj Sekar

Connor D Oren

Philip M Ouweleen

Joshua Crooks

Steven R Sankbeil

Abby True-Dahl

Brian K Wagner

Kwok-Lam Ng

Orvin D Kendall

Tao You

Gildas LeMen

Rebecca Beier

Gildas Le Men

Dhawal B Save

Rebecca A Beier

Carl P Harris

Aditya S Murthy

Jing Zou

Cara R Kazda

Arnuad LeVen

Clinton T Woods

Jeff S Eyers

Thomas H Steger Jr

A filtration system having an undulated interlocking housing-endplate interface geometry is described. In the filtration system, a filter element endplate and a filter housing component (e.g., a shell housing, a filter mounting head, etc.) meet at an interface. The filter housing component includes an undulating or repeating pattern that meshes with a matching undulating or repeating pattern on the endplate of the filter element. The undulating or repeating pattern prevents the filter element from freely rotating with respect to the filter housing component of the filtration system.

Undulated interlocking housing-endplate interface geometry

A filtration assembly includes a filter housing and a filter element. The filter housing includes a base and a cover including an underside having one or more retainer features. The cover is removably coupled to the base. The filter element is removably installed within the base when the cover is coupled to the base. The filter element includes filter media and an endplate coupled to one end of the filter media. The endplate includes an outer perimeter and one or more engagement features protruding from the outer perimeter. The one or more engagement features engage the one or more retainer features in the cover upon installation of the endplate into the cover, thereby coupling the endplate to the cover.

Self-assisting element removal features for a filtration system

Various embodiments relate to a filter element. The filter element includes a first filter end, second filter end, filter media, and filter frame. The second filter end is disposed axially away from the first filter end. The filter media extends axially between a first filter end and a second filter end. The filter frame is adjacent to the first filter end. The filter frame includes a first frame end, a second frame end, a first frame endwall, a second frame endwall, a first frame sidewall, and a second frame sidewall. The second frame end is disposed axially away from the first frame end. The first frame endwall extends axially away from the first frame end toward the second frame end. The second frame endwall extends axially away from the first frame end toward the second frame end. The second frame endwall is disposed longitudinally away from the first frame endwall.

Layered filter frame

A filter element including a filter media, an end cap, and a baffle. The filter media is configured to be secured within a housing. The housing includes an inlet configured to accept a fluid for filtering and the filter media including a circumferential outer surface. The end cap is positioned at and coupled to one end of the filter media. The baffle is positioned relative to the filter media at a position such that, when the filter element is correctly installed within the housing, the baffle is proximate the inlet of the housing. The baffle extends around only a portion of the circumferential outer surface of the filter media in a radial direction.

Pre-cleaning air filter

A filter element includes first filter media, second filter media, a frame, and a seal member. The frame is coupled to the first filter media and the second filter media, the frame securing the first filter media and the second filter media into a V-shape. The seal member is attached to and extends from the frame. The seal member includes a U-shaped channel structured to receive a ridge of a housing when the filter element is installed in the housing. The seal member is structured to form a seal between the filter element and the housing when the filter element is installed in the housing.

Filter with interlocking housing interface

An external brace for a filter element is described. The brace is configured to wrap around an exterior of a filter element having a filter media pack. The brace helps to support the filter media pack during filtering operations by preventing outward flexing of the filter media pack caused by fluid flowing through the filter media. In some arrangements, the brace interfaces with a filtration system housing to provide additional support to the filter element.

External brace reinforcement structure for improved strength and performance of primary filter element

Filtration systems having a tangential air cleaner having a coiled media filter element and a cyclonic pre-cleaner are described. An outer wall of the filter element acts as a pre-cleaner sleeve of the housing to generate a cyclonic flow of the intake air prior to the intake air being filtered by the filter element. The housing cover includes geometry that redirects the cyclonic low from a tangential path to an axial, straight-through flow directed through an inlet flow face of the filter element. Various embodiments of such filtration systems offer increased filter performance and capacity compared to similarly sized cylindrical pleated filter elements having a radial flow filtering path.

Tangential air cleaner with coiled filter cartridge

A filter assembly includes a conditioning device that conditions a flow of air upstream of a mass air flow sensor. The filter assembly includes a support frame. The filter assembly further includes a filter media coupled to the support frame, the filter media having a dirty side configured to receive a stream of air and a clean side configured to output a stream of air that has been filtered through the filter media. The filter assembly includes a conditioning device coupled to the support frame, the conditioning device positioned in a downstream direction from the clean side of the filter media with respect to the stream of air, the conditioning device offset from the clean side of the filter media by a separation distance.

System and method for improving mass air flow signal quality

Filtration systems having a tangential air cleaner having a coiled media filter element and a cyclonic pre-cleaner are described. An outer wall of the filter element acts as a pre-cleaner sleeve of the housing to generate a cyclonic flow of the intake air prior to the intake air being filtered by the filter element. The housing cover includes geometry that redirects the cyclonic flow from a tangential path to an axial, straight-through flow directed through an inlet flow face of the filter element. Various embodiments of such filtration systems offer increased filter performance and capacity compared to similarly sized cylindrical pleated filter elements having a radial flow filtering path.

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

Growing community of inventors

Stoughton, WI, United States of America

Robert A Bannister