Advanced fuel filtration system with interlocking cartridge seal design

Patent metadata

Field	Value
Publication number	US-12576348-B2
Application number	US-202217883163-A
Country	US
Kind code	B2
Filing date	Aug 8, 2022
Priority date	Feb 11, 2020
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

A filter assembly includes a filter element and a filter housing. The filter housing includes a shell defining an inner cavity, and a lid configured to engage the shell at an opening of the inner cavity. The filter element is disposed within the inner cavity and includes a media pack, a first endplate, and a sealing member. The first endplate is sealingly engaged with a media pack first end and includes a skirt extending along a longitudinal axis of the media pack from the first end toward the second end. The sealing member is coupled to the skirt and is positioned between and forms a seal between the lid and the shell.

First claim

What is claimed is:

1 . A filter assembly, comprising:
a filter housing, comprising:
a shell defining an inner cavity, wherein the shell comprises a first side wall having an interior surface defining at least in part the inner cavity; and
a lid configured to engage the shell at an opening of the inner cavity, wherein the lid comprises a second side wall positioned radially inwardly and engaged with the first side wall of the shell; and
a filter element disposed within the inner cavity, the filter element comprising:
a media pack having a media pack first end and a media pack second end opposite the media pack first end;
a first endplate sealingly engaged with the media pack first end, the first endplate comprising a skirt extending along a longitudinal axis of the media pack from the media pack first end toward the media pack second end; and
a sealing member coupled to the skirt and disposed proximate a lower end of the skirt, the sealing member positioned between and forming a seal between the lid and the shell, wherein the sealing member engages the interior surface of the first side wall; and
wherein the shell sealingly engages a second end plate sealingly engaged with the media pack second end.

2 . The filter assembly of claim 1 , wherein the media pack is an outer media pack defining a central cavity, and further comprising an inner media pack disposed within the central cavity.

3 . The filter assembly of claim 2 , wherein the first endplate is coupled to both the outer media pack and the inner media pack.

4 . The filter assembly of claim 1 , wherein the lid engages an upper axial end surface of the sealing member, and wherein the shell defines an upper ledge that engages a lower axial end surface of the sealing member opposite the upper axial end surface.

5 . The filter assembly of claim 1 , wherein the sealing member protrudes radially beyond an outer perimeter of the first endplate.

6 . The filter assembly of claim 1 , wherein the sealing member is disposed at an intermediate position between opposing axial ends of the media pack.

7 . The filter assembly of claim 1 , wherein the skirt comprises a first protrusion and a second protrusion spaced axially apart from the first protrusion, the first protrusion and the second protrusion together defining a recessed area sized to receive the sealing member therein, wherein an outer radius of the second protrusion is greater than an outer radius of the first protrusion.

8 . The filter assembly of claim 1 , wherein the shell defines a lower ledge that engages a lower end of the skirt.

9 . The filter assembly of claim 1 , further comprising a protrusion disposed proximate a lower end of the skirt, the protrusion engaged with a lower axial surface of the sealing member.

10 . The filter assembly of claim 1 , wherein the lid comprises an axial sidewall that is sealingly engaged with the sealing member.

11 . The filter assembly of claim 10 , wherein the axial sidewall is disposed within the inner cavity of the shell when the lid is installed into the shell.

12 . A filter element, comprising:
a media pack having a media pack first end and a media pack second end opposite the media pack first end; a first endplate sealingly engaged with the media pack first end, the first endplate comprising a skirt extending along a longitudinal axis of the media pack from the media pack first end toward the media pack second end, wherein the skirt comprises an upper protrusion and a lower protrusion spaced axially apart from the upper protrusion, the upper protrusion and the lower protrusion together defining a recessed area, wherein an outer radius of the lower protrusion is greater than an outer radius of the upper protrusion; a first sealing member coupled to the skirt and disposed in the recessed area proximate a lower end of the skirt, the first sealing member circumferentially surrounding the media pack, the first sealing member protruding beyond an outer perimeter of the first endplate; a second endplate sealingly engaged with the media pack second end, the second endplate comprising an axial sidewall and an inner perimeter; a second sealing member coupled to the axial sidewall and protruding radially outwardly from the axial sidewall; and a third sealing member coupled to the second endplate and disposed radially inwardly from the inner perimeter.

13 . The filter element of claim 12 , wherein the media pack is an outer media pack defining a central cavity, and further comprising an inner media pack disposed within the central cavity.

14 . The filter element of claim 13 , wherein the first endplate is coupled to both the outer media pack and the inner media pack.

15 . The filter element of claim 12 , wherein the first sealing member protrudes radially beyond the outer perimeter of the first endplate.

16 . The filter element of claim 12 , wherein the first sealing member is disposed at an intermediate position between opposing axial ends of the media pack.

17 . The filter element of claim 12 , further comprising a protrusion disposed proximate a lower end of the skirt, the protrusion engaged with a lower axial surface of the sealing member.

18 . A filter assembly, comprising:
a filter housing, comprising:
a shell defining an inner cavity;
a lid configured to engage the shell at an opening of the inner cavity; and
a drain valve fluidly coupling the inner cavity to an environment surrounding the
shell; and a filter element disposed within the inner cavity, the filter element comprising:
an outer media pack defining a central cavity having a longitudinal axis;
an inner media pack disposed within the central cavity; and
an endplate sealingly engaged with both the outer media pack and the inner media pack, wherein the outer media pack and the inner media pack are not moveable relative to each other along the longitudinal axis, the endplate defining an opening positioned between the inner media pack and the outer media pack, the opening fluidly coupled to the drain valve, wherein the endplate comprises an axial sidewall extending away from the outer media pack and an inner perimeter; a first sealing member coupled to the axial sidewall and protruding radially outwardly from the axial sidewall; and a second sealing member coupled to the endplate and disposed radially inwardly from the inner perimeter.

19 . The filter assembly of claim 18 , the endplate comprising a first pair of sidewalls defining a first channel and a second pair of sidewalls defining a second channel, the first pair of sidewalls coupled to the second pair of sidewalls by a perforated extension.

20 . The filter assembly of claim 18 , wherein the drain valve comprises a port, the drain valve configured to allow for water to flow from the inner cavity to the environment
surrounding the shell through the port while allowing air to flow back in simultaneously through the port.

Assignees

• Cummins Filtration Inc
• Atmus Filtration Inc

Inventors

• Oren Connor David
• Jiang Zemin
• Singh Jayant
• Pimpalte Vaibhav
• Ghagre Chetan
• Dalavi Bharati Pundalik
• Padale Sagar
• Masutage Sunny Nabhiraj
• Young Joshua Luther

Classifications

• B01D2201/347

  Radial sealings · CPC title

• B01D2201/301

  Details of removable closures, lids, caps, filter heads · CPC title

• B01D2201/298

  End caps common to at least two filtering elements · CPC title

• B01D2201/0423

  not in the inner side of the cylindrical filtering elements · CPC title

• B01D36/003

  Filters in combination with devices for the removal of liquids (B01D35/185 takes precedence) · CPC title