公开(公告)号：US20220088523A1

公开(公告)日：2022-03-24

申请号：US17426037

申请日：2020-01-28

Applicant: Cummins Filtration IP, Inc.

Inventor： Chirag D. Parikh ,  Peter K. Herman ,  Arun P. Janakiraman

IPC: B01D46/00 ,  B01D46/52 ,  B01D46/12 ,  F01M13/04

Abstract: 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.

公开(公告)号：US11173440B2

公开(公告)日：2021-11-16

申请号：US16466711

申请日：2017-12-08

Applicant: Cummins Filtration IP, Inc.

Inventor： Peter K. Herman ,  Christopher E. Holm ,  Mark V. Holzmann ,  Arun P. Janakiraman ,  Chirag D. Parikh ,  Miao Li

IPC: B01D45/12 ,  B01D45/14 ,  F01M13/04 ,  B04B5/12 ,  B04B7/12 ,  B04B5/00

Abstract: Various rotating coalescer elements are described. The rotating coalescer elements include various arrangements of stacked separator discs or cones. In some arrangements, the described rotating coalescer elements include a combination of stacked separator discs or cones and filter media. In some arrangements, the stacked separator discs are designed to provide the largest possible amount of radial-projected separation surface area in a given rotating cylindrical volume, where flow to be cleaned is passing radially (outwardly or inwardly) through the rotating coalescer element. In some arrangements, this is achieved by stacking non-conical separating plates containing various area-maximizing features (e.g., spiral ribs, axial cylinders, spiral grooves, or spiral “V” shapes).

公开(公告)号：US20190321765A1

公开(公告)日：2019-10-24

申请号：US16474742

申请日：2018-01-08

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Peter K. Herman ,  Arun P. Janakiraman

IPC: B01D46/00 ,  B01D46/24 ,  B01D46/26 ,  B04B9/06 ,  F01M13/04 ,  B01D45/12 ,  C23C28/02

Abstract: Various arrangements of a turbine for a rotating coalescer element of a crankcase ventilation system for an internal combustion engine are described. In some arrangements, the turbine is an impulse turbine, which is also known as a pelton turbine or a turgo turbine. The turbine is used to convert hydraulic power from a stream of pressurized fluid to mechanical power that is used to drive the rotating element. The turbine includes a non-wetting surface (e.g., an oleophobic or hydrophobic surface) that repels the pressurized fluid. The non-wetting surface may be achieved through plasma coating, fluoropolymer coating, micro-topography features, and the like. The non-wetting surface increases the power transmission efficiency from the stream of pressurized fluid to the turbine, thereby increasing the rotational speed of the rotating element compared to wettable surfaced turbines, which in turn increases the efficiency of the rotating element.

公开(公告)号：US20180140985A1

公开(公告)日：2018-05-24

申请号：US15577539

申请日：2016-06-01

Applicant: Cummins Filtration IP, Inc.

Inventor： Lee A. Peck ,  Vincil A. Varghese ,  Arun P. Janakiraman ,  James Bass ,  Suryanaryanan Paneerselvam ,  Peter K. Herman

IPC: B01D46/00 ,  F01M13/04 ,  B01D46/24 ,  B01D46/26

Abstract: Systems and methods for detecting a missing coalescing element in a CV system are described. In some arrangements, the described systems and methods prevent the assembly and/or re-assembly of the CV system without an appropriate coalescing element positioned within the CV system housing (e.g., during a coalescing element service operation). In some arrangements, the coalescing element depresses a spring-loaded component of a shaft that provides flow of bypass gases to the CV system. If the spring-loaded component is not depressed, significant restriction is introduced to the CV system, and an on-board-diagnostic system may detect high-crankcase pressure through existing crankcase pressure sensors and de-rate the internal combustion engine. In other arrangements, a spring-loaded mechanism within the shaft prevents a housing cover (e.g., a lid to the housing of the CV system) from being repositioned when a coalescing element is not installed within the housing.

公开(公告)号：US20180117512A1

公开(公告)日：2018-05-03

申请号：US15561170

申请日：2015-03-30

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Arun P. Janakiraman ,  Scott Heckel ,  Brian W. Schwandt ,  Jerald J. Moy ,  Himani Deshpande

IPC: B01D46/00 ,  F01M13/04

Abstract: Disclosed are multiple stage rotating coalescer devices comprising a first stage and a second stage. The first stage may include a rotating coalescing element comprising coalescing media. The second stage is positioned either upstream or downstream or the first stage. The second stage may include one of: (i) a rotating cone stack separator, or (ii) a separate rotating coalescing element comprising coalescing media.

公开(公告)号：US09890671B2

公开(公告)日：2018-02-13

申请号：US15036729

申请日：2014-11-17

Applicant: Cummins Filtration IP, Inc.

Inventor： Chirag D. Parikh ,  Brian W. Schwandt ,  Arun P. Janakiraman ,  Ashwin K. Koleshwar

IPC: F01M13/04 ,  F01M1/16 ,  F01M13/02 ,  F01M13/00

CPC classification number: F01M13/04 ,  F01M1/16 ,  F01M13/028 ,  F01M2013/0044 ,  F01M2013/0438 ,  F01M2013/0494

Abstract: A crankcase ventilation system having a crankcase ventilation filter and a filter drain. The crankcase ventilation filter vents blow-by gases from a crankcase and separates oil from the blow-by gases. The crankcase ventilation filter drain collects oil separated by the crankcase ventilation filter and returns the separated oil to the crankcase or another component of the engine. A nozzle is coupled to a pressurized oil supply and directs an oil jet into a mixing bore of the system, which draws the oil back into recirculation. A valve is coupled to the filter drain and is configured to prevent collected oil from reentering the crankcase ventilation filter through an opening that connects the filter drain to the filter.

公开(公告)号：US20240173661A1

公开(公告)日：2024-05-30

申请号：US18424426

申请日：2024-01-26

Applicant: Cummins Filtration IP, Inc.

Inventor： Chirag D. Parikh ,  Christopher E. Holm ,  Peter K. Herman ,  Arun P. Janakiraman ,  Brian W. Schwandt

IPC: B01D46/00 ,  B01D45/12 ,  B01D45/14 ,  F01M13/04

CPC classification number: B01D46/003 ,  B01D45/12 ,  B01D45/14 ,  F01M13/04 ,  B01D2279/35 ,  F01M2013/0422 ,  F01M2013/0438

Abstract: 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.

公开(公告)号：US11918948B2

公开(公告)日：2024-03-05

申请号：US15580481

申请日：2016-06-08

Applicant: Cummins Filtration IP, Inc.

Inventor： Chirag D. Parikh ,  Christopher E. Holm ,  Peter K. Herman ,  Arun P. Janakiraman ,  Brian W. Schwandt

IPC: B01D46/00 ,  B01D45/12 ,  B01D45/14 ,  F01M13/04

CPC classification number: B01D46/003 ,  B01D45/12 ,  B01D45/14 ,  F01M13/04 ,  B01D2279/35 ,  F01M2013/0422 ,  F01M2013/0438

Abstract: 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.

公开(公告)号：US11458484B2

公开(公告)日：2022-10-04

申请号：US16465931

申请日：2017-12-01

Applicant: Cummins Filtration IP, Inc.

Inventor： Peter K. Herman ,  Arun P. Janakiraman

IPC: B04B9/06 ,  B04B5/00 ,  F03B1/02

Abstract: A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing. 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 comprises a radially-extending structure that axially blocks the flow of the fluid through the first axial end. The second axial end does not comprise any structure that axially blocks the flow of the fluid through the second axial end.

公开(公告)号：US10737282B2

公开(公告)日：2020-08-11

申请号：US15766945

申请日：2016-10-11

Applicant: Cummins Filtration IP, Inc.

Inventor： Robert A. Bannister ,  Arun P. Janakiraman ,  Peter K. Herman ,  Scott W. Schwartz ,  Jeremiah Cupery ,  Matthew Louison ,  Jason A. Scherck

IPC: B01D45/12 ,  B04C3/06 ,  B04C3/04 ,  B01D46/00 ,  B01D46/10 ,  B01D50/00 ,  F02M35/022 ,  F02M35/02 ,  B04C9/00 ,  B01D35/147 ,  B01D46/52

Abstract: 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.