Filter element endplate defining inflow and outflow flow paths

Patent metadata

Field	Value
Publication number	US-9447759-B2
Application number	US-201313827992-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Jun 12, 2012
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A filter element for fuel, oil or other engine fluids, with an endplate that is designed to create flow paths for both clean and dirty regions. The filter element is part of a spin-on filter that is attachable to a filter head in an engine and that filters fuel, oil or other engine fluids. A pre-fill cap can be integrally incorporated onto the endplate to permit pre-filling and installation without removing components.

First claim

The invention claimed is:

1. A filter element, comprising:
a ring of filtration media having a first end and a second end and circumscribing a central cavity;
a first endplate sealingly attached to the first end of the filtration media;
a second endplate sealingly attached to the second end of the filtration media, the second endplate including a sleeve extending upwardly therefrom in a direction away from the first endplate, the sleeve defining a fluid flow passageway through the second endplate that is in fluid communication with the central cavity;
a radial outward facing groove formed in the sleeve that receives a seal therein;
a plurality of ribs formed on the second endplate and extending upwardly therefrom in the same direction as the sleeve, each rib extending from a first end on an outside surface of the sleeve to a second end adjacent an outer perimeter edge of the second endplate; and
a pre-fill cap integrally formed with and closing an end of the sleeve, the pre-fill cap including an outer perimeter edge that overhangs a portion of the sleeve; and at least one hole formed in the sleeve between the pre-fill cap and the radial outward facing groove that places the fluid flow passageway in communication with an exterior of the sleeve.

2. The filter element of claim 1 , wherein the first endplate is a closed endplate with no fluid flow passageways through the first endplate.

3. A filter element, comprising:
a ring of filtration media extending along a longitudinal axis and having a first end and a second end and circumscribing a central cavity;
a first endplate sealingly attached to the first end of the filtration media;
a second endplate sealingly attached to the second end of the filtration media, the second endplate including a first structure extending upwardly therefrom in a direction away from the first endplate coaxial to the longitudinal axis, the first structure defines a fluid flow passageway through the second endplate, the fluid flow passageway has an inlet that is in fluid communication with the central cavity and an outlet;
a seal disposed on the first structure that is positioned to seal with a filter head, the seal is positioned between the outlet and the second endplate;
a second structure integrally formed on the second endplate that defines a plurality of fluid flow paths along the top of the second endplate, the fluid flow paths are disposed on the same side of the second endplate as the first structure; and
a pre-fill cap integrally formed with and closing the first structure at the outlet thereof, the pre-fill cap including an outer perimeter edge that overhangs a portion of the first structure; and at least one outlet hole formed in the first structure between the pre-fill cap and the seal that places the fluid flow passageway in communication with an exterior of the first structure.

4. The filter element of claim 3 , wherein the second structure comprises a plurality of ribs integrally formed on the second endplate and extending upwardly therefrom in the same direction as the first structure, the ribs defining the fluid flow paths along the top of the second endplate.

5. The filter element of claim 4 , wherein each rib extends in a radial direction from an outside surface of the first structure to adjacent an outer perimeter edge of the second endplate.

6. The filter element of claim 3 , wherein the seal is disposed in a groove formed on an outside surface of the first structure.

7. The filter element of claim 3 , wherein the first endplate is a closed endplate with no fluid flow passageways through the first endplate.

8. A filter, comprising:
a housing having a closed first end, a second end and an interior space;
a nutplate fastened to the second end of the housing, the nutplate including a threaded sleeve having interior threads for threadably connecting the filter to a filter head, the threaded sleeve having an inner end facing toward the interior space;
a filter element disposed in the interior space, the filter element including:
a ring of filtration media disposed in the interior space and extending along a longitudinal axis and having a first end and a second end and circumscribing a central cavity;
a first endplate sealingly attached to the first end of the filtration media;
a second endplate sealingly attached to the second end of the filtration media between the first endplate and the nutplate, the second endplate including a first structure extending upwardly therefrom in a direction away from the first endplate and radially inward from the threaded sleeve, the first structure is coaxial to the longitudinal axis, the first structure defines a fluid flow passageway through the second endplate, the fluid flow passageway has an inlet that is in fluid communication with the central cavity and an outlet;
a seal disposed on the first structure that is positioned to seal with the filter head when the filter is connected to the filter head, the seal is positioned between the outlet and the second endplate;
a second structure integrally formed on the second endplate that defines a plurality of fluid flow paths along the top of the second endplate, the fluid flow paths are disposed on the same side of the second endplate as the first structure; and
a pre-fill cap integrally formed with and closing the first structure at the outlet thereof, the pre-fill cap including an outer perimeter edge that overhangs a portion of the first structure; and at least one outlet hole formed in the first structure between the pre-fill cap and the seal that places the fluid flow passageway in communication with an exterior of the first structure.

9. The filter of claim 8 , wherein the second structure comprises a plurality of ribs integrally formed on the second endplate and extending upwardly therefrom in the same direction as the first structure, the ribs defining the fluid flow paths along the top of the second endplate, and the inner end of the threaded sleeve is engaged with an upper end of each rib.

10. The filter of claim 9 , wherein each rib extends from a first end on an outside surface of the first structure to a second end adjacent an outer perimeter edge of the second endplate, and the second end is radially outside of the inner end of the threaded sleeve.

11. The filter of claim 8 , further comprising a spring disposed between the first endplate and the closed first end of the housing, the spring is connected to the filter element and biases the filter element into engagement with the nutplate.

12. The filter of claim 8 , wherein the seal is disposed in a groove formed on an outside surface of the first structure.

13. The filter of claim 8 , wherein the first endplate is a closed endplate with no fluid flow passageways through the first endplate.

Assignees

• Cummins Filtration Ip Inc

Inventors

• Bagci Ismail
• Wells Aaron
• Samuel Amos

Classifications

• F02M37/22 Primary

  Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system · CPC title

• B01D27/08

  Construction of the casing · CPC title

• B01D2201/291

  End caps · CPC title

• B01D27/06 Primary

  with corrugated, folded or wound material · CPC title

• F02M37/32

  characterised by filters or filter arrangements · CPC title