Cummins Filtration Ip, Inc.

Nelson Industries, Inc.

Fleetguard, Inc.

Roger L Zoch

Brian W Schwandt

Barry Mark Verdegan

Scott P Heckel

Guillermo Alberto Smith

Chirag D Parikh

Kelly Ann Detra

Caryn J Kindkeppel

Pathikrit T Banerjee

Kwok-Lam Ng

Matthew T VandenBush

Christopher E Holm

Benjamin L Scheckel

Stephanie F Severance

Merwyn I Coutinho

Daniel Y Hodges

Howard E Tews

Hamilton E Harper

Peter K Herman

Kurt M A Badeau

Jim L Alonzo

Kelly R Schmitz

J Bruce Schelkopf

Shiming Feng

Jeffrey A Fedorowicz

Benoit Le Roux

Mark V Holzmann

Arun P Janakiraman

Gerard Malgorn

Gregory W Hoverson

Jerald J Moy

Bradley A Smith

Thomas J Braun

Saru Dawar

Himani Deshpande

Jared M Gwin

Clint T Deweese

Rohit Sharma

Mike J Connor

Thom H Steger

Scott W Schwartz

William C Haberkamp

Eric A Janikowski

Stephen L Fallon

Tadeusz Jaroszczyk

Harold R Martin

Jean-Luc Guichaoua

Brian K Wagner

Mark P Adams

Bryan P Steffen

Jean-Yves Picard

Eric J Rego

Jacek Bodasiński

Witalis Rumiński

Robert E Muse

Leon Gradoń

Jean-Luc Goichaoua

Jeff Morgan

David A Meier

Caryn Kindkeppel

Menez Loick

An inertial gas-liquid impactor separator includes flow director guidance structure directing and guiding flow through the housing from the inlet to the outlet along a flow path from upstream to downstream. The flow director guidance structure may include a flow controller controlling and directing flow.

Inertial gas-liquid impactor separator with flow director

A fluid filter assembly of a filtration system is described. The filter assembly described includes a cover member and a filter cartridge having at least one filter element and a plate member. The plate member includes a seal surface on one side facing the cover member, and a seal surface on another side facing away from the cover member. The seal surface facing the cover member is configured to seal with the cover member, and the seal surface facing away from the cover member configured to seal with another component of the filtration system. The assembly provides a structure that can retain a seal between sealing surfaces of the cover and the filter cartridge, at least while the fluid filter assembly is being serviced, so as to at least minimize fluid dripping and leakage.

Dripless filter assembly and method for servicing a filtration apparatus with the same

An internal combustion engine crankcase ventilation rotating coalescer includes an annual rotating coalescing filter element, an inlet port supplying blow by gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering clean separated, air from the exterior of the rotating element. The direction of flow by gas inside-out, radially, outwardly from the hollow interior to the exterior.

Crankcase ventilation inside-out flow rotating coalescer

A gas-liquid rotating coalescer includes first and second sets of one or more detent surfaces on a rotary drive member and a driven annular rotating coalescing filter element which engagingly interact in interlocking mating keyed relation to effect rotation of the coalescing filter element by the rotary drive member. Designated operation of the coalescer requires that the coalescing filter element include the second set of detent surfaces. A coalescing filter element missing the second set of detent surfaces will not effect the noted designated operation.

Rotating coalescer with keyed drive

A gas-liquid rotating separator has first and second sets of magnetically permeable members magnetically interacting with each other to effect rotation of a separator element. A nonauthorized replacement separator element missing the second set of magnetically permeable members will not effect designated operation, thus ensuring, at maintenance servicing, installation of an authorized replacement separator element.

Magnetically driven rotating separator

A closed crankcase ventilation system for an internal combustion engine includes a return duct with a variably controlled air-oil coalescer. In a turbocharger version, cleaned separated air is provided to the turbocharger inlet, and the coalescer is variably controlled according to a given condition of the turbocharger and/or the engine and/or the coalescer.

Closed crankcase ventilation system

An internal combustion engine crankcase ventilation rotating coalescer includes an annular rotating coalescing filter element, an inlet port supplying blowby gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering cleaned separated air from the exterior of the rotating element. The direction of blowby gas is inside-out, radially outwardly from the hollow interior to the exterior.

A filter element has a reinforcement band or ring along at least a portion of the perimeter thereof and performing a support function thereat preventing or minimizing damage upon attempted percussive cleaning of the filter element by service personnel striking the perimeter against an impact surface. Alternatively, a failure band or ring is provided along at least a portion of the perimeter and performs a designated failure function to a failure condition thereat upon attempted percussive cleaning, with the failure condition providing at least one of: a) an indication to service personnel that the filter element has been damaged and should not be re-installed; and b) a deformed condition preventing re-installation.

Filter element with percussion band

Disclosed are methods and systems for monitoring and indicating the optimal replacement interval for a filter. In particular, the methods and systems may be utilized for monitoring and indicating the optimal replacement interval of an air filter in an internal combustion engine based on parameters that include air filter plugging rate data, engine duty cycle data, pressure drop across the air filter, penalty on fuel consumption, and the cost of air filter replacement.

Engine air filter replacement indication system

Growing community of inventors

McFarland, WI, United States of America

Roger L Zoch