公开(公告)号：US11439943B2

公开(公告)日：2022-09-13

申请号：US16343076

申请日：2017-10-16

Applicant: Cummins Filtration IP, Inc.

Inventor： Emmanuel Page ,  Anthony Barreteau ,  Kurt M. A. Badeau ,  Christopher E. Holm

IPC: B01D46/52 ,  B01D46/00 ,  B32B3/28 ,  B01D46/58

Abstract: Filter media having a design embossed into the media are described. In some arrangements, the filter media is pleated filter media. In other arrangements, the filter media includes a plurality of channels, such as tetrahedron channels. The filter media includes a pattern of interrupted straight or angled embossments that help maintain separation between adjacent layers of the filter media. The embossments allow for two adjacent media layers (e.g., mating surfaces of the filter media) to remain separated, thereby increasing dust holding capacity and lowering pressure drop over similarly configured filter media not having the embossments.

公开(公告)号：US11174766B2

公开(公告)日：2021-11-16

申请号：US16921466

申请日：2020-07-06

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Peter K. Herman ,  Christopher E. Holm ,  Arun Janakiraman

IPC: B01D45/00 ,  F01M13/04 ,  B01D45/08 ,  B01D45/12 ,  B01D45/04 ,  B01D46/10 ,  B01D50/00 ,  F02M35/022

Abstract: The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.

公开(公告)号：US11156137B2

公开(公告)日：2021-10-26

申请号：US17164369

申请日：2021-02-01

Applicant: Cummins Filtration IP, Inc.

Inventor： Anthony Barreteau ,  Christopher E. Holm ,  Benjamin L. Scheckel ,  Alain Olier

IPC: F01M13/04 ,  B01D45/14 ,  B01D46/00 ,  B01D50/00 ,  B04B15/10 ,  B04B5/00

Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.

公开(公告)号：US20210156286A1

公开(公告)日：2021-05-27

申请号：US17164369

申请日：2021-02-01

Applicant: Cummins Filtration IP, Inc.

Inventor： Anthony Barreteau ,  Christopher E. Holm ,  Benjamin L. Scheckel ,  Alain Olier

IPC: F01M13/04 ,  B01D45/14 ,  B01D46/00 ,  B01D50/00 ,  B04B5/00 ,  B04B15/10

Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shall forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.

公开(公告)号：US10927730B2

公开(公告)日：2021-02-23

申请号：US16903160

申请日：2020-06-16

Applicant: Cummins Filtration IP, Inc.

Inventor： Anthony Barreteau ,  Christopher E. Holm ,  Benjamin L. Scheckel ,  Alain Olier

IPC: F01M13/04 ,  B01D45/14 ,  B01D46/00 ,  B01D50/00 ,  B04B15/10 ,  B04B5/00

Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.

公开(公告)号：US10760208B2

公开(公告)日：2020-09-01

申请号：US16205645

申请日：2018-11-30

Applicant: CUMMINS FILTRATION IP, INC. ,  Regents of the University of Minnesota

Inventor： Zaifei Wang ,  Frank S. Bates ,  Christopher W. Macosko ,  Kan Wang ,  William C. Haberkamp ,  Christopher E. Holm

IPC: D04H1/56 ,  D06M13/33 ,  D06M11/38 ,  D06M13/477 ,  D06M14/14 ,  D04H1/435 ,  D04H3/011 ,  F01M13/04 ,  D06M101/32

Abstract: Described herein is a continuous process for modifying the properties of polyester and polyester based fibers, such as a poly(butylene terephthalate) (PBT) fiber, comprising subjecting the PBT fiber to alkaline hydrolysis, and optionally further comprising functionalizing the PBT fiber by solution grafting such as fluorination. The alkaline hydrolysis and optionally subsequent functionalization such as fluorination process can be continuous, following the melt blowing/spinning or spun-bonding process. Also described is a nonwoven PBT fiber mat obtained by the surface modification process. Further described is a filtration device comprising the nonwoven PBT fiber mat.

公开(公告)号：US10718242B2

公开(公告)日：2020-07-21

申请号：US15880302

申请日：2018-01-25

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Peter K. Herman ,  Christopher E. Holm ,  Arun Janakiraman

IPC: B01D45/00 ,  F01M13/04 ,  B01D45/08 ,  B01D45/04 ,  B01D46/10 ,  B01D50/00

Abstract: The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.

公开(公告)号：US10688430B2

公开(公告)日：2020-06-23

申请号：US16437122

申请日：2019-06-11

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Mark V. Holzmann ,  Robert A. Bannister ,  Budi Antony ,  Scott W. Schwartz ,  Brian W. Schwandt ,  Steven R. Sankbeil ,  Christopher E. Holm ,  Eric A. Janikowski ,  Scott G. Manke

IPC: B01D46/00 ,  F02M35/08 ,  F24F3/16

Abstract: 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.

公开(公告)号：US10682601B2

公开(公告)日：2020-06-16

申请号：US15753778

申请日：2016-08-26

Applicant: Cummins Filtration IP, Inc.

Inventor： Brian W. Schwandt ,  Christopher E. Holm ,  Chirag D. Parikh ,  Suryanarayanan Paneerselvam ,  Peter K. Herman

IPC: B01D53/02 ,  B01D46/00 ,  B01D46/24 ,  B01D46/26 ,  F01M13/04 ,  B01D45/14 ,  B01D50/00

Abstract: 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.

公开(公告)号：US20200009486A1

公开(公告)日：2020-01-09

申请号：US16513907

申请日：2019-07-17

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： William C. Haberkamp ,  Eric A. Janikowski ,  Kyle Ellison ,  Barry Mark Verdegan ,  Christopher E. Holm

IPC: B01D39/16

Abstract: 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.