WO2006093981A2 - Caracteristiques de confinement pour agencements de filtre a liquide; ensembles; et procedes - Google Patents

Caracteristiques de confinement pour agencements de filtre a liquide; ensembles; et procedes Download PDF

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Publication number
WO2006093981A2
WO2006093981A2 PCT/US2006/007126 US2006007126W WO2006093981A2 WO 2006093981 A2 WO2006093981 A2 WO 2006093981A2 US 2006007126 W US2006007126 W US 2006007126W WO 2006093981 A2 WO2006093981 A2 WO 2006093981A2
Authority
WO
WIPO (PCT)
Prior art keywords
media
filter cartridge
end cap
liquid filter
liquid
Prior art date
Application number
PCT/US2006/007126
Other languages
English (en)
Other versions
WO2006093981A3 (fr
Inventor
Dennis Michael Deedrich
Randall William Heibenthal
David P. Welzant
Thomas A. Boeckermann
Original Assignee
Donaldson Company, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Donaldson Company, Inc. filed Critical Donaldson Company, Inc.
Publication of WO2006093981A2 publication Critical patent/WO2006093981A2/fr
Publication of WO2006093981A3 publication Critical patent/WO2006093981A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/307—Filtering elements contained in an insert body mounted in a filter housing (double casing), e.g. to avoid contamination when removing or replacing the filter element

Definitions

  • the disclosure generally concerns liquid filters.
  • the disclosure relates to improved features in such liquid filters.
  • the features relate generally to an improved arrangement for providing containment around a liquid filter, for convenient handling, use and disposition.
  • Liquid filters are employed in a variety of applications including fuel systems, fuel/water separators, hydraulic systems and engine lubrication systems.
  • Such filter assemblies generally include a filter cartridge within a can or a housing.
  • liquid filter arrangements are provided in either a spin-on form or a bowl/cartridge form.
  • the filter cartridge is received within a can from which it is not normally removed, during servicing. Rather the entire can is spun onto or attached to a filter head or other componentry and is replaced in its entirety during servicing. Examples of such arrangements are described in U.S. 4,369,113; 4,834,885; 5,104,537; 5,895,574; and, 6,345,721; the complete disclosures of these five references being incorporated herein by reference.
  • the filter cartridge is a serviceable component, received within a housing bowl or can.
  • the housing bowl or can is then attached to a filter head, during operation.
  • bowl/cartridge filter arrangements are described for example in U.S. 6,752,924; and, 6,322,697; each of which is incorporated herein by reference.
  • a serviceable filter cartridge is provided which must be installed in the housing and removed from the housing. Improvements in arrangements for handling the serviceable filter cartridge are desired.
  • the present disclosure concerns features and techniques useable in liquid filter arrangements.
  • the features and techniques can be used together to provide for an advantageous liquid filter arrangement.
  • the techniques generally relate to providing an enclosed arrangement around the outside of the filter cartridge, spaced from the media, to contain liquid flow within a resulting serviceable filter cartridge. Seal arrangements useable in association with such a containment arrangement are also described. Also, a convenient, removable, cap arrangement is shown, to contain residual liquid and contaminant, in a used cartridge.
  • FIG. 1 is an exploded partially fragmentary, schematic view depicting a liquid filter having a bowl/cartridge assembly including a serviceable liquid filter cartridge according to the present disclosure.
  • Fig. 2 is a schematic, exploded view depicting a serviceable liquid filter cartridge removed from the bowl of a bowl/cartridge arrangement.
  • Fig. 3 is an enlarged, schematic, side elevational view depicting the serviceable liquid filter cartridge used in the assembly of Fig. 1 and depicted in Fig. 2, shown with portions broken away and with optional embossing pattern.
  • Fig. 4 is an exploded view depicting a storage cap being positioned on a serviceable filter cartridge as depicted in Fig. 3.
  • Fig. 5 is a top plan view of the cap depicted in Fig. 4.
  • Fig. 6 is a schematic cross-sectional view of the cap depicted in Fig. 5, taken along line 6-6 thereof.
  • Fig. 7 is a side cross-sectional view of an alternate embodiment of a liquid filter cartridge to the arrangement depicted in Figs. 1-4; in Fig. 7, the liquid filter cartridge being depicted with a removable containment cap.
  • Fig. 8 is an exploded, schematic, view depicting a containment cap being positioned on the arrangement of Fig. 7. •
  • Fig. 9 is an exploded, schematic, perspective view of the assembly depicted in Fig. 8.
  • Fig. 10 is a schematic cross-sectional view depicting the assembly of Figs. 7 and 9 positioned in a bowl/cartridge assembly for use.
  • the reference numeral 1, Fig. 1 generally indicates a liquid filter assembly according to the present disclosure.
  • the depiction of Fig. 1 is schematic, but indicates features and improvements of concern herein.
  • the techniques described can be applied in a variety of different types of liquid filter arrangements, for example in lubrication (oil) filters; hydraulic filters; fuel filters; and, in fuel/water separators.
  • the liquid filter assembly 1 includes an inlet cover
  • the filter assembly 1 depicted, as a result, is a bowl/cartridge assembly in which the filter cartridge 6 is a service part, positioned in an interior 5 a of the housing or bowl
  • service part it is meant that the cartridge 6 is removed from the housing 5 and replaced, in normal use.
  • the housing or bowl 5 is removed from the cover piece 4 and the cartridge 6 is removed from interior 5 a and is replaced with a new or refurbished cartridge 6.
  • the housing or bowl 5 would then be replaced on the cover piece 4.
  • FIG. 1 it is noted that in Fig. 1 the assembly 1 is depicted with the bowl 5 separated from the cover piece 4. Engagement could of course, be by threaded engagement as shown; although alternatives are possible.
  • the cover piece 4 would typically comprise a portion of a filter head or related assembly that would remain mounted on equipment, during servicing.
  • the cover 4 is generally configured to: provide for an inlet flow of liquid to be filtered, into the interior 5a of the housing 5; and, to receive filtered liquid from the interior 5 a, to pass it back into a liquid circulation system of the equipment involved.
  • a central flow conduit is shown.
  • conduit 10 is an inlet flow conduit 11 through post 12 to receive liquid to be filtered from the circulation loop, directing same into interior 6a of cartridge 6.
  • conduit 10 will sometimes be referred to as a central flow conduit, due to its positioning.
  • Port 20 will sometimes be referred to as a second flow conduit spaced radially from the first, central, flow conduit.
  • cartridge 6 is sealed to post 12, to prevent undesired flow of unfiltered liquid between region 6a and annulus 18, without passage through media 15 of filter cartridge 6.
  • the filter cartridge 6 is sealed to post 12, typically and preferably in accord with one of the approaches described in U.S. Provisional Application filed March 1, 2005 as an application entitled "Improved Features for Liquid Filter Arrangements; Resulting Filter Components and Assemblies; and, Methods" under Express Mail No. EV 495871377 US.
  • the complete disclosure of the application identified in the previous sentence is incorporated herein by reference. It is noted that alternate seal arrangements can be used.
  • the seal is provided by first, post, sealing arrangement 21 on cartridge 6.
  • the particular seal arrangement shown includes a lip seal and a projection/receiver arrangement, although alternatives are possible.
  • bypass flow arrangements can be provided, to allow for a controlled bypass flow around media 15, should the filter cartridge 6 become unacceptably included.
  • no bypass arrangement is depicted, although one could be used.
  • housing or bowl 5 is secured to cover piece 4 by a threaded arrangement 22. This provides for convenient service access, since bowl 5 would simply be unthreaded from cover piece 4, to provide service access to interior 5a and cartridge 6.
  • O-ring 22a provides for a seal between bowl 5 and cover piece 4.
  • the cartridge 6 comprises media 15, typically arranged in a pleated form 23.
  • the media 15 is generally configured in a tubular shape, around open central volume 6a.
  • the media 15 has opposite ends 15 a, 15b and is positioned in extension between opposite end caps 25, 26.
  • the media 15 can be potted to the opposite end caps 25, 26 with sealant; or, the end caps 25, 26 can be molded in place on media ends 15 a, 15b respectively or be thermally bonded in place.
  • the media 15 defines an inner edge 15c and an outer edge 15d.
  • the inner edge 15c, for pleated media 23, would comprise inner pleat tips 23 a; and, the outer edge 15d for pleated media 23 would comprise outer pleat tips 23d.
  • Media material is a matter of choice for the particular application desired. A wide variety of types of media can be used.
  • end cap 26 is a closed end cap, meaning it has no apertures therethrough in flow communication with region 6a.
  • End cap 25 is an open end cap, defining central opening 28, to allow flow between region 6a and conduit 10.
  • the first seal arrangement 21 is positioned in aperture 28.
  • the flow direction of unfiltered liquid again, is from conduit 10 toward region 6a and then through media 15 into annulus 18, although alternatives are possible.
  • a flow pattern of unfiltered liquid into central region 6a, then through media 15, and into annulus 18, is generally referred to herein as a "in-to-out" flow pattern, and cartridge 6 is adapted for in-to-out flow. It is noted that certain of the techniques according to the present disclosure can be adapted to be utilized for arrangements that are configured for "out-to-in" flow patterns.
  • the cartridge 6 depicted has no inner liner.
  • inner liner By this it is meant that there is no tubular structure in region 6a, such as a perforated tube or expanded metal tube. Such an arrangement will sometimes be referred to as "inner liner free.” Principles according to the present disclosure could be incorporated in arrangements that do include an inner liner. However it is advantageous that an inner liner be avoided.
  • the cartridge 6 includes, positioned on the media 15, roving 29.
  • the roving is coiled around the media, to help contain the same.
  • the media may also be provided with a support on one or both sides, pleated with the media, when pleated media is used.
  • Such supports can be plastic or metal, for example.
  • cartridge 6 includes thereon a containment and flow direction arrangement 100 comprising: outer containment wall, sheath or extension 101; flow direction aperture arrangement 102; and, second, housing, seal arrangement 103.
  • containment extension 101 comprises a continuous, impervious, side wall 101a secured to and extending between end caps 25, 26, spaced from media 15, by annular space 18.
  • impervious in this context, it is meant that the wall 101a generally does not permit the liquid being filtered, to flow therethrough, i.e., it has no apertures or holes therein.
  • continuous in this context, it is meant that the wall 101 extends between the end caps, without a break or joint therein.
  • the distance of spacing between wall 101a and the media 15 is at least 3 mm, typically not more than 20 mm, and often within the range of 5 mm to 16 mm, although alternatives are possible.
  • the wall 101a is positioned spaced from inner wall 5b of housing bowl 5.
  • the spacing is relatively small, usually no greater than 6 mm, although alternatives are possible.
  • apertures are provided where indicated at 102, in a spaced pattern around end cap 25 and in flow communication with region 18 between wall 101a and media 15. These apertures are shown, for example, in Fig. 2.
  • liquid will enter region 6a as previously described, and will flow through media 15 into annulus 18 between the media 15 and containment wall, cover or shield 101a. The liquid will then flow upwardly through flow apertures 102, and into cover 4.
  • the flow apertures 102 are spaced peripheral flow apertures positioned radially outwardly from the media 15.
  • an opposite flow direction would be involved. It is desirable to avoid introduction of liquid between covering 101a and side wall 56, i.e., in region 110.
  • a second, peripheral, seal arrangement 103 is provided.
  • second seal arrangement 103 comprises a seal mounted on or secured to end cap 25, to provide a sealing engagement to inhibit liquid flow around the cartridge 6, in this instance by sealing with a portion of the housing bowl 5, as a housing seal.
  • seal arrangement 105 comprises a peripheral extension 115 formed integrally with a remainder of end cap 25, in a molding process. Extension 115 generally extends at an angle to wall 101a, usually at an acute angle A of at least 10° and not more than 80°, typically at least 25° and not more than 70°.
  • seal extension 115 When cartridge 6 is pushed into housing 5 a, seal extension 115 will engage the side wall 56, providing a seal, as shown in Fig. 1.
  • seal extension 115 is a conical lip seal 115a, although alternatives are possible.
  • a lip seal such as arrangement 115s is used, that extends at an oblique angle to the housing wall 56, is defined, preferably the direction of extension is away from end cap 26.
  • liquid in region 20 above end cap 25 will tend to press the lip seal 115a against the wall 56, enhancing sealing.
  • conically shaped lip seal 115a is positioned with the wider end of the cone further from end cap 26, than the narrow end of the cone. This means that the lip 115a will easily flex inwardly, as the cartridge 6 is pushed into a housing bowl 5.
  • cartridge 6 is shown being removed from (or being inserted into) housing bowl 5, during a servicing operation. It can be understood that wall 101a will tend to retain liquid and contaminant, within the cartridge 6 during servicing, to facilitate the servicing operation.
  • cartridge 6 is shown in enlarged cross-sectional view.
  • cartridge 6 is being shown with a cap 150 being positioned thereon.
  • Cap 150 is sized and configured to snap fit over end cap 26, to remain in place.
  • the cap 150 is liquid impervious (has no open apertures to allow flow therethrough when in place) " ' ' .ng handling of cartridge 6, after its been used, residual liquid and contaminant will be contained within the cartridge under cap 150 and within outer covering 101a.
  • Removable cap 150 would typically be molded from a plastic material of appropriate dimensions. In Figs. 5 and 6, cap 150 is shown in detail. It is noted that cap 150 includes tab 151 for easy attachment and removal.
  • the particular cap 150 is sized to engage aperture 28, with central projection 152, Fig. 6, to facilitate closure and snap fit engagement.
  • CC 20.22 mm
  • DD 85.16 mmR
  • EE 0.23 mm
  • FF 55.46 mm
  • GG 155.77 mm, although alternatives are possible; the dimensions shown merely being examples.
  • a new service cartridge 6 would be provided with a removable cap 150 thereon, and be sent to an appropriate location for servicing operation.
  • the cap removed from the new cartridge 6, and would be attached to the used cartridge 6 being removed from the liquid filter assembly 4 during servicing.
  • the new cartridge 6, having the cap 150 removed would then be installed as the new service part, hi this way, the service provider does not need to retain a cap 150, for a servicing operation. Rather a new cap 150 would be provided with each new service part 6, as a combination.
  • the order of steps is not critical, as long as the intended result is achieved.
  • the outer covering 101a can be a rigid material, or a flexible material, hi some instances a flexible material, which can press against inner wall 56, under liquid pressure during use, will be preferred.
  • plastic materials could be used for such an application, typically the preferred materials will be ones which can withstand the liquid pressure conditions and temperature conditions of normal use.
  • Composite or multi-layered laminate materials could be used. It is anticipated that it will typically be preferred that at least an inner layer, facing the media pack 15, would comprise nylon. This material would conveniently secure to end caps 25, 26, which also typically would be molded from nylon, for example nylon 66. Adhesive attachment or sonic weld attachment, for example, could be used.
  • the material for the covering 101a is a flexible polymeric film that can flex and press against the wall, it will typically be preferred that the material have an embossed outer surface, to facilitate air dis ⁇ lacement within region 110, Fig. 1.
  • embossing is shown, in covering 101a at 180. It is noted that a variety of alternate embossing arrangements can be used.
  • the embossing pattern 180 shown simply provides that channels between the embossed "squares" allow for air flow to be directed during displacement up toward seal arrangement 115. Because this displaced air flow would be in the direction of arrow 181, and due to the directional orientation of Hp 115, during this initial expansion of wall 101a the air would simply work its way past seal 115.
  • embossing pattern 180 is not drawn covering the entire wall 101a, but rather is depicted in fragmentary view. In a typical arrangement, embossing pattern 180 would cover the entire outside surface of wall 101a.
  • an embossing pattern such as pattern 180, which provides for an uninterrupted air flow channel from end cap 26 to end cap 25, will sometimes be referred to as an embossed surface defining a vertical air displacement path.
  • FIGs. 7-10 an alternate embodiment utilizing principles in general as described in connection with the embodiment of Figs. 1-6, is shown.
  • a cartridge assembly 206 is depicted with cover 207 thereon.
  • the cartridge assembly 206 is a serviceable cartridge, useable in a bowl/cartridge described below in connection with Fig. 10.
  • cartridge 206 comprises media 215 provided in a tubular configuration and in extension between end caps 225, 226.
  • media 215 would be pleated with inner pleat tips 216 and outer pleat tips 217 although alternatives are possible.
  • Roving 220 is shown coiled around the outer pleat tips 217.
  • the media pack 215 defines an open interior 206a.
  • the cartridge 206 depicted, is inner liner free.
  • End cap 225 is an open end cap having central aperture 230 extending therethrough.
  • the central aperture 230 includes a first, cover, seal engagement arrangement 231 comprising bead 232 and lip seal 233, generally in accord with the principles of U.S.
  • End cap 225 includes peripheral axial tubular (in this instance circular) extension 260 thereon, extending axially outwardly from end cap 225 in a direction generally opposite to end cap 226.
  • Extension 260 defines region 251, above a remainder of end cap 225.
  • Extension 260 includes a seal, in this instance o- ring 261, thereon, at an end remote from media pack 215.
  • the o-ring 261 is shown positioned as a peripheral seal on an exterior of extension 260, although alternatives are possible.
  • Removable cap 207 is shown pushed over end 260a of extension 260, sealed in place by o-ring 261.
  • Cap 207 includes side extension 207a and center 207b. When cap 207 is positioned in place, as shown, it will tend to contain liquid and contaminant under cap 207 and above end cap 226, contained within sheath 240. Cap 207 can be removed, for installation of a new filter 206 in place. In this instance end cap 226 is closed, although alternatives are possible.
  • filter 206 is shown with cap 207 removed therefrom. It is noted that extension 260 is provided with outer annular ribs 280 and rings 281 for strength. In Fig. 9 an exploded view of an assembly comprising cap 207 and cartridge 206 is depicted. It is noted that end caps 225, 226 can be secured in place by potting, heat bonding or by being molded in place on the media 215. Typically end caps 225, 226 will be molded, for example from nylon 66.
  • Outer sheath or wall 240 can be generally analogous to sheath or wall 101, Figs. 1-4.
  • cartridge 206 is shown positioned within a housing or bowl 300 and mounted on filter head or cover 301, for use to filter liquid.
  • Liquid inlet in cover 301 is indicated at 302, directing liquid into interior 206a of cartridge 206.
  • O-ring 261 is shown providing a seal between cartridge 206 and a portion of cover 301. After entering region 206a, liquid would flow through media pack 215 to annulus 241. The liquid would then flow through apertures 250, Fig. 8, and into region 251. It could then flow through outlet 305 in cover 301.
  • wall 240 can be chosen to be either rigid or flexible. When a flexible material is shown, in operation it will generally press against interior surface 300a of bowl 300. Embossing in the outer surface of cover 240, when the cover 240 is flexile, will facilitate air displacement. Displaced air would typically be displaced through the threads 310.
  • Figs. 7-10 would be implemented analogously to the embodiment of Figs. 1-6, except for use with a different liquid filter assembly having a different cover and bowl.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un ensemble filtre à liquide possédant des caractéristiques qui assurent le confinement d'un contaminant liquide contenu dans l'ensemble. L'invention concerne également des procédés selon lesquels un couvercle est fixé au filtre à liquide, après utilisation du filtre, pour retenir le résidu de contaminant liquide dans le filtre. L'invention concerne également plusieurs exemples présentant diverses caractéristiques structurales.
PCT/US2006/007126 2005-03-01 2006-02-28 Caracteristiques de confinement pour agencements de filtre a liquide; ensembles; et procedes WO2006093981A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65756705P 2005-03-01 2005-03-01
US60/657,567 2005-03-01

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WO2006093981A2 true WO2006093981A2 (fr) 2006-09-08
WO2006093981A3 WO2006093981A3 (fr) 2007-05-18

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7882961B2 (en) 2005-11-01 2011-02-08 Cummins Filtration Ip, Inc. Replaceable fuel filter element and fuel filter assembly
US8220640B2 (en) 2007-07-23 2012-07-17 Cummins Filtration Ip, Inc. Stack-disk filter cartridge
WO2020021418A1 (fr) * 2018-07-23 2020-01-30 Cummins Filtration Sarl Joint radial pour filtre amovible
US11141687B2 (en) 2016-05-02 2021-10-12 Cummins Filtration Ip, Inc. Filter with interlocking housing interface
US11167234B2 (en) 2016-03-18 2021-11-09 Cummins Filtration Ip, Inc. Interlocked stable filter assembly
US11235275B2 (en) 2017-03-16 2022-02-01 Cummins Filtration Ip, Inc. Filtration sealing system
US11298640B2 (en) 2017-01-25 2022-04-12 Cummins Filtration Ip, Inc. Expandable threaded adaptor for threadless shell
US11724220B2 (en) 2017-02-21 2023-08-15 Cummins Filtration Ip, Inc. Undulated interlocking housing-endplate interface geometry
US11833459B2 (en) 2009-04-09 2023-12-05 Cummins Filtration Ip, Inc. Filtration sealing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520139A1 (de) * 1985-06-05 1986-12-11 Joachim 7252 Weil der Stadt Wolf Filtervorrichtung
US6322697B1 (en) * 1999-07-19 2001-11-27 Donaldson Company, Inc. Oil filter assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520139A1 (de) * 1985-06-05 1986-12-11 Joachim 7252 Weil der Stadt Wolf Filtervorrichtung
US6322697B1 (en) * 1999-07-19 2001-11-27 Donaldson Company, Inc. Oil filter assembly

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8096423B2 (en) 2005-11-01 2012-01-17 Cummins Filtration Ip, Inc. Replaceable fuel filter element and fuel filter assembly
US7882961B2 (en) 2005-11-01 2011-02-08 Cummins Filtration Ip, Inc. Replaceable fuel filter element and fuel filter assembly
US8220640B2 (en) 2007-07-23 2012-07-17 Cummins Filtration Ip, Inc. Stack-disk filter cartridge
US11833459B2 (en) 2009-04-09 2023-12-05 Cummins Filtration Ip, Inc. Filtration sealing system
US11167234B2 (en) 2016-03-18 2021-11-09 Cummins Filtration Ip, Inc. Interlocked stable filter assembly
US11813559B2 (en) 2016-03-18 2023-11-14 Cummins Filtration Ip, Inc. Interlocked stable filter assembly
US11141687B2 (en) 2016-05-02 2021-10-12 Cummins Filtration Ip, Inc. Filter with interlocking housing interface
US11660560B2 (en) 2016-05-02 2023-05-30 Cummins Filtration Ip, Inc. Filter with interlocking housing interface
US11298640B2 (en) 2017-01-25 2022-04-12 Cummins Filtration Ip, Inc. Expandable threaded adaptor for threadless shell
US11724220B2 (en) 2017-02-21 2023-08-15 Cummins Filtration Ip, Inc. Undulated interlocking housing-endplate interface geometry
US11235275B2 (en) 2017-03-16 2022-02-01 Cummins Filtration Ip, Inc. Filtration sealing system
WO2020021418A1 (fr) * 2018-07-23 2020-01-30 Cummins Filtration Sarl Joint radial pour filtre amovible
EP4122576A1 (fr) * 2018-07-23 2023-01-25 Cummins Filtration SARL Joint radial pour filtre amovible
CN112469487A (zh) * 2018-07-23 2021-03-09 康明斯滤清系统公司 用于旋装式过滤器的径向密封

Also Published As

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