Cummins Filtration Ip, Inc.

Fleetguard, Inc.

Nelson Industries, Inc.

Cummins Engine Company, Inc.

Cummins Filtration Inc.

Peter K Herman

Christopher E Holm

Arun P Janakiraman

Brian W Schwandt

Hendrik Amirkhanian

Barry Mark Verdegan

Chirag D Parikh

Kevin C South

Ismail C Bagci

Scott W Schwartz

Wassem Abdalla

Mark V Holzmann

Bradley A Smith

Michael J Connor

Gerard Malgorn

Gregory W Hoverson

Abby True-Dahl

Robert A Bannister

Benjamin L Scheckel

Scott P Heckel

Harold R Martin

Jean-Luc Guichaoua

Byron Andrew Pardue

Mark T Wieczorek

Chad M Thomas

Jerald J Moy

Pravin Shantinath Kadam

Richard Jensen

Roger L Zoch

Mark J Johnson

Jeffrey A Husband

Anthony Barreteau

Ted S Loftis

Lee A Peck

Navin K Surana

Stephanie L Faber

Zemin Jiang

Abhijit Shimpi

Andrew P Perr

Ken Tofsland

Andry Lesmana

Michael T Zuroski

Matthew Louison

Thomas J Braun

Jeffrey B Sharp

Shiming Feng

Vincil A Varghese

Miao Li

Jason A Scherck

Ronan Corvec

Benoit Le Roux

Vijay Dinkar Kolhe

Jeremiah Cupery

Suryanarayanan Paneerselvam

David Paul Genter

Gregory K Loken

Norman C Blizard

Terry Shults

Saru Dawar

Kwok-Lam Ng

Aaron M Wells

Melvin Douglas McCormick

Chad T Brummitt

Matthew T VandenBush

Himani Deshpande

Merwyn I Coutinho

Kaarthik Venkataraman

John C Lukasavitz

David M Stehouwer

Howard E Tews

Ashwin K Koleshwar

Dean Olson

Sudhindra Palaxa Arakeri

Rohit Sharma

Gérard Malgorn

Stephen L Fallon

Kelly R Schmitz

Kurt M A Badeau

Steven J Reilly

Paul D Miller

James S Bass

Philip S Hall

Arnaud Le Ven

Pierrick Bonzi

Mark A Terres

Amit Shashikant Wankhede

Ricky England

Vinay Kumar Joshi

Jonathan D Sheumaker

Travis E Goodlund

Bryan P Steffen

Yashpal Subedi

Daniel Y Hodges

Joshua Luther Young

Jeffrey A Fedorowicz

Jean-Yves Picard

Alan S Bounnakhom

Jeff A Bowerman

Mark P Adams

J Eric Parlow

A rotating separator includes a filter housing extending axially along a longitudinal axis and a filter element positioned within the filter housing. The filter element includes a first endplate and a second endplate operatively coupled to the first endplate, a first element core and a second element core positioned between the first endplate and the second endplate and configured to filter a contaminate from a fluid. An interior cavity is defined between the first endplate, the second endplate, the first element core, and the second element core. Fluid flowing through the filter element enters the interior cavity and is split between and flows in parallel through the first element core and the second element core.

Split flow axial crankcase separator

Rotating coalescer elements that maximize the radial-projected separation surface area in a given (rotating) cylindrical volume, where flow to be cleaned is passing axially upward or downward through a separating media of the rotating coalescer element. Various example package assemblies are provided with various types of rotating configurations including cylindrical coiled media packs, frustum coiled media packs, concentric cylinders, coiled metal or polymer films with and without perforations, and/or alternating layers of different materials. The described rotating coalescers may be driven by hydraulic turbine, electric motor, belt, gear or by mounting on rotating machine components, such as rotating engine shafts or connected components.

Axial flow centrifugal separator

A liquid filtration system includes a filter head, a shell housing, and a filter cartridge. The filter head includes a skirt having a ramp disposed at a first end of the skirt. The shell housing is coupled to the filter head. The filter cartridge is disposed within the shell housing. The filter cartridge includes a filter media pack and am endcap coupled to a first end of the filter media pack. The endcap includes an interface member extending from an upper surface of the endcap. The interface member includes a scaling member that is at least partially tilted at an oblique angle relative to a central axis of the endcap. The scaling member is sealingly engaged with the skirt.

Filtration element with gradient seal interface

A water drain valve system structured to drain water from a fuel-water separator. The system includes a collection vessel structured to temporarily store water, a liquid level sensor structured to monitor a level of the temporarily stored water, a drainage port extending radially from the collection vessel and having a port inlet and a port outlet, and a valve assembly. The port inlet receives water to be drained from the collection vessel, the water flowing through the drainage port and exiting through the port outlet. The valve assembly is movable between a closed position in which the port outlet is closed, and an open position, in which the port outlet is open, to selectively allow water to be drained from the collection vessel. The valve assembly includes a solenoid coupled to a seal member, the seal member closing the port outlet in the closed position of the valve assembly.

Non-vented, semi-automated water drain valve system

A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing and positioned so as to be contacted by the fluid expelled from the jet. The fluid causes the turbine to rotate about a center rotational axis within the housing. The turbine comprises a first axial end, a second axial end, and a plurality of vanes extending axially relative to the center rotational axis from the first axial end to the second axial end. The plurality of vanes defines axially-extending channels between each of the plurality of vanes. The first axial end is axially open such that fluid can flow unblocked axially through the first axial end and into the channels. The jet is positioned such that at least a portion of the fluid enters into the turbine through the first axial end.

Separation assembly with a single-piece impulse turbine

An impactor separator comprises a housing having an inlet receiving a gas-liquid stream and an outlet expelling a gas stream. The impactor separator also includes an impaction surface positioned within the housing and configured to separate liquid particles from the gas-liquid stream and a nozzle assembly positioned within the housing. The nozzle assembly includes a nozzle assembly housing portion and a plurality of nozzles extending through the nozzle assembly housing portion. Each of the plurality of nozzles includes a nozzle inlet and a nozzle outlet. The gas-liquid stream enters into the nozzle assembly housing portion, flows into the plurality of nozzles through the nozzle inlet and exits the plurality of nozzles through the nozzle outlet. The plurality of nozzles accelerates the gas-liquid stream toward the impaction surface.

Duckbill aerosol separator with always open refinement

A rotating coalescer having an ejected coalesced liquid separating device is described. The separating device prevents re-entrainment of liquid into a stream of filtered gas. The rotating coalescer includes a rotating filter element or coalescing cone stack positioned within a rotating coalescer housing. The outer surface of the rotating filter element or the outlet of the coalescing cone stack is displaced from the inner surface of the rotating coalescer housing. The gap between the rotating filter element or the coalescing cone stack and the rotating coalescer housing allows for ejected coalesced liquid, such as oil, to accumulate on the inner surface of the rotating coalescer housing for drainage and allows for filtered gas, such as air, to exit through a clean gas outlet of the rotating coalescer housing.

Rotating coalescing element with directed liquid drainage and gas outlet

Rotating coalescer crankcase ventilation (CV) systems are described. The described CV systems utilize a pumping pressure created by the porous media of the rotating coalescer to maintain positive recirculation of filtered blowby gases through a potential leak gap between a static housing inlet and a spinning component of the rotating coalescer. In some arrangements, the porous media is fibrous media. The filter media may be pleated or non-pleated. The positive recirculation caused by the pressure balance prevents unfiltered blowby gases from bypassing the media of the rotating coalescer from the upstream side to the downstream side of the filter media through the gap. During operation, the pressure balance between the upstream side and downstream side of the filter media maintains the positive recirculation, which in turn maintains a high filtration efficiency.

Systems and methods for rotating coalescers maintaining positive recirculation through a dynamic seal

A filter assembly includes a drain port comprising a top portion and at least one surface modification along the top portion. The drain port defines an aperture therein and is alignable with an outlet port. The outlet port includes a seal member that is attachable to an end portion of the outlet port. A portion of the aperture of the drain port is sealable to the seal member when the drain port and the outlet port are aligned such that the at least one surface modification of the drain port does not abut the seal member of the outlet port, thereby creating a sealed connection between the drain port and the outlet port.

Filter port seal

The application relates to a separation assembly with multiple separators and a single jet pump assembly. A separation assembly comprises a first crankcase ventilation separator comprises a first drain outlet, a second crankcase ventilation separator that comprises a second drain outlet, and a jet pump assembly. The jet pump assembly comprises a first drain inlet fluidly connected to the first drain outlet of the first crankcase ventilation separator and a second drain inlet fluidly connected to the second drain outlet of the second crankcase ventilation separator. The jet pump assembly provides suction pressure to both the first drain outlet of the first crankcase ventilation separator and the second drain outlet of the second crankcase ventilation separator.

Separation assembly with multiple separators and a single jet pump assembly

A filter assembly comprises a filter head, a port, a fitting, and a diffuser. The port extends from a portion of the filter head and defines a channel for fluid to flow into or out of the filter head. The fitting first end is attachable to the port and the fitting second end is attachable to a filtration system component. The diffuser is positionable within the channel of the port and comprises an inner surface and an outer surface. The inner surface defines an inner conical hollow region that extends at a nonzero angle between the inner conical hollow region first end and the inner conical hollow region second end such that a first inner diameter of the diffuser at the inner conical hollow region first end is smaller than a second inner diameter of the diffuser at the inner conical hollow region second end.

Filter assembly with a diffuser

A crankcase ventilation system comprises a housing defining an internal volume structured to receive a. rotating air/oil separator element. The housing has a housing inlet structured to receive a fluid and a housing outlet defined tangentially in a sidewall of the housing which is structured to allow the fluid to exit the housing. An outlet conduit is fluidly coupled to housing outlet. The outlet conduit comprises an outlet conduit first portion axially aligned with the housing outlet, and an outlet conduit second portion positioned downstream of the outlet, conduit first, portion. A swirl breaking structure is positioned in at least one of an outlet conduit inlet and the outlet conduit second portion. The swirl breaking structure is configured to disrupt swirling flow of the fluid into the outlet conduit so as to reduce a pressure drop experienced by the fluid as the fluid flows from the housing into the outlet conduit.

Crankcase ventilation systems having a swirl breaker to reduce pressure drop in tangentially exiting fluids

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Stoughton, WI, United States of America

Peter K Herman