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：US10737208B2

公开(公告)日：2020-08-11

申请号：US16123222

申请日：2018-09-06

Applicant: Cummins Filtration IP, Inc.

Inventor： Scott W. Schwartz ,  Anthony Barreteau ,  Emmanuel Page

IPC: B01D46/24 ,  B01D46/00 ,  B01D46/52

Abstract: Radial seal filter assemblies and filter cartridges are described. According to various embodiments, a filter includes a housing that extends along an axis between first and second axial ends. A primary filter element is disposed in the housing and axially extends between first and second axial ends that respectively are adjacent the first and second axial ends of the housing, the primary filter element has a hollow interior and a first axial length. A secondary filter element is disposed in the hollow interior of the primary filter element, the secondary filter element having a second axial length, the second axial length being longer than the first axial length of the primary filter element. The filter further includes an end cap disposed on the second axial end of the primary filter element.

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：US10688423B2

公开(公告)日：2020-06-23

申请号：US15537525

申请日：2015-12-10

Applicant: Cummins Filtration IP, Inc.

Inventor： Mark D. Straussberger ,  Pravin S. Kadam ,  Wassem Abdalla

IPC: B01D35/153 ,  B01D29/96 ,  B01D36/00 ,  B01D35/16 ,  B01D29/11

Abstract: A replacement filter element having a removable pin attached to the filter element is described. The removable pin is attached to the filter element via a first interference fit. When the replacement filter element is installed into a filtration system having a drain valve with an internal draft, the removable pin seals onto the drain valve and forms a second interference fit between the drain valve and the pin. The pin seals an opening in the drain valve. The second interference fit is stronger than the first interference. Accordingly, when the replacement filter element is removed from the filter housing (e.g., during a service event of the replacement filter element), the pin detaches from the replacement filter element and remains positioned within the drain valve thereby preventing fluid from leaking from the housing when the filter element is removed. The pin permanently plugs the drain valve once installed.

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：US10603613B2

公开(公告)日：2020-03-31

申请号：US16002478

申请日：2018-06-07

Applicant: Cummins Filtration IP, Inc.

Inventor： Rajeev Dhiman

IPC: B01D35/30 ,  B01D35/153 ,  B01D36/00 ,  B01D29/96

Abstract: The descriptions relate to preventing assembly of a fluid filter apparatus unless a filter cartridge is installed, and preventing assembly of a fluid filter apparatus if the incorrect filter cartridge is installed. A mechanism includes cooperation of a movable member and a structure that can move the movable member to ensure that a fluid filter apparatus cannot be completely assembled, for example connecting its filter head to its shell, when there is no cartridge installed inside the shell or when there is an attempt to install an incorrect cartridge. This can protect from an inadvertent or intentional failure to install a cartridge (or correct cartridge) in the fluid filter apparatus.

公开(公告)号：US20200094172A1

公开(公告)日：2020-03-26

申请号：US16495006

申请日：2018-03-19

Applicant: Cummins Filtration IP, Inc.

Inventor： Manikandan Annamalai ,  Saurabh Saboo ,  Jayant Singh ,  Zemin JIANG ,  Prashant Ramesh Khedkar ,  Kevin C. SOUTH

IPC: B01D29/58 ,  B01D35/30 ,  B01D35/153 ,  B01D29/15

Abstract: A filter assembly that comprises a housing, an outer filter element, and an inner filter element. The outer filter element is positionable within the housing and comprises an outer filter media. The inner filter element is positionable within the outer filter element and comprises an inner filter media, a media support structure, an inner top endplate, and an inner bottom endplate. The inner top endplate comprising a top rib that extends continuously around a portion of a top surface of the inner top endplate.

公开(公告)号：US10543442B2

公开(公告)日：2020-01-28

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: B01D46/18 ,  B01D46/00 ,  B01D45/14 ,  F01M13/04 ,  C08L67/04

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：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.