Filter cartridge retention feature

1 . A liquid filtration system, comprising:

a filter head;

a filter cartridge configured to be removably coupled to the filter head, the filter cartridge comprising:

a shell housing defining a first housing end, a second housing end, a housing sidewall extending between the first housing end and the second housing end, and a groove extending circumferentially about the shell housing proximate to the first housing end, the groove including a first groove surface that is contiguous with an inner housing surface of the shell housing and that extends generally perpendicularly to the inner housing surface; and

a filter element received within the shell housing and removably coupled to the shell housing, the filter element comprising:

a media pack configured to filter matter from a fluid flowing therethrough; and

an endcap coupled to an end of the media pack, the endcap comprising a retaining member engaged with the shell housing, the endcap coupled to the shell housing via engagement of the retaining member of the endcap with the groove defined in the shell housing; and

a handle rotatably coupled to the retaining member.

2 . The liquid filtration system of claim 1 , wherein the handle is operable between a first handle position and a second handle position, the handle biasing the retaining member toward a central axis in the first handle position, and the handle allowing engagement of the retaining member with the shell housing in the second handle position.

3 . The liquid filtration system of claim 2 , further comprising a handle fixture coupled to a first surface of the endcap, the handle fixture receiving the handle when the handle is in the second handle position.

4 . The liquid filtration system of claim 2 , wherein the handle is positioned substantially parallel to a first surface of the endcap when the handle is in the second handle position.

5 . The liquid filtration system of claim 2 , further comprising a knob coupled to the handle and extending through the retaining member, the knob engaging a radially outward-facing surface of the retaining member to bias the retaining member toward the central axis when the handle is in the first handle position.

6 . The liquid filtration system of claim 2 , further comprising a locking projection coupled to the handle and extending away from the handle, the locking projection configured to engage a radially inward-facing surface of the retaining member to bias the retaining member into engagement with the shell housing when the handle is in the second handle position.

7 . The liquid filtration system of claim 1 , wherein:

the endcap further comprises an endcap surface; and

the retaining member further comprises:

a first retainer first portion extending axially away from the endcap surface;

a first retainer second portion separated from the first retainer first portion by a radial gap; and

first retainer projection extending radially from the first retainer second portion and configured to engage the shell housing to couple the endcap to the shell housing.

8 . The liquid filtration system of claim 7 , wherein the retaining member further comprises:

an orifice extending radially through the first retainer second portion, the orifice configured to receive a tool for biasing the first retainer second portion radially toward the first retainer first portion.

9 . The liquid filtration system of claim 7 , wherein the retaining member further comprises:

a first retainer compliant portion coupled to the first retainer first portion and the first retainer second portion, the first retainer compliant portion deforming in response to movement of the first retainer second portion radially toward the first retainer first portion.

10 . The liquid filtration system of claim 1 , wherein the shell housing further comprises:

a receptacle extending radially into the housing sidewall, the receptacle configured to:

receive a portion of the retaining member, and

limit rotation of the endcap relative to the shell housing.

11 . The liquid filtration system of claim 10 , wherein the receptacle extends through the housing sidewall, forming an aperture in the housing sidewall.

12 . The liquid filtration system of claim 10 , wherein the portion of the retaining member is a projection configured to extend radially into the receptacle, the projection comprising:

a ramp surface configured to engage the shell housing to bias the retaining member toward a center of the filter cartridge; and

a stop surface configured to engage the receptacle to prevent translation of the endcap in a direction generally away from the second housing end,

wherein the projection is configured to interface with receptacle sidewalls of the receptacle to limit rotation of the endcap relative to the shell housing.

13 . The liquid filtration system of claim 1 , wherein:

the shell housing further comprises a groove extending about a circumference of the shell housing and a first anti-rotation feature extending from the groove; and

the endcap further comprises a second anti-rotation feature extending from a perimeter of the endcap, the second anti-rotation feature configured to engage the first anti-rotation feature to prevent rotation of the endcap relative to the shell housing when the retaining member is coupled to the shell housing.

14 . A liquid filtration system, comprising:

a filter head;

a filter cartridge configured to be removably coupled to the filter head, the filter cartridge comprising:

a shell housing defining a first housing end, a second housing end, and a housing sidewall extending between the first housing end and the second housing end; and

a filter element received within the shell housing and removably coupled to the shell housing, the filter element comprising:

a media pack configured to filter matter from a fluid flowing therethrough;

an endcap coupled to an end of the media pack, the endcap comprising an endcap surface, and a retaining member engaged with the shell housing, the retaining member comprising:

a first retainer first portion extending axially away from the endcap surface;

a first retainer second portion separated from the first retainer first portion by a radial gap;

a first retainer projection extending radially from the first retainer second portion and configured to engage the shell housing to couple the endcap to the shell housing;

a first retainer compliant portion coupled to the first retainer first portion and the first retainer second portion, the first retainer compliant portion deforming in response to movement of the first retainer second portion radially toward the first retainer first portion; and

a handle rotatably coupled to the retaining member.

15 . The liquid filtration system of claim 14 , wherein the retaining member further comprises:

an orifice extending radially through the first retainer second portion, the orifice configured to receive a tool for biasing the first retainer second portion radially toward the first retainer first portion.

16 . A liquid filtration system, comprising:

a filter head;

a filter cartridge configured to be removably coupled to the filter head, the filter cartridge comprising:

a shell housing defining a first housing end, a second housing end, and a housing sidewall extending between the first housing end and the second housing end; and

a filter element received within the shell housing and removably coupled to the shell housing, the filter element comprising:

a media pack configured to filter matter from a fluid flowing therethrough;

an endcap coupled to an end of the media pack, the endcap comprising a retaining member engaged with the shell housing; and

a handle rotatably coupled to the retaining member, and operable between a first handle position and a second handle position, the handle biasing the retaining member toward a central axis in the first handle position, and the handle allowing engagement of the retaining member with the shell housing in the second handle position; and

a knob coupled to the handle and extending through the retaining member, the knob engaging a radially outward-facing surface of the retaining member to bias the retaining member toward the central axis when the handle is in the first handle position.

17 . The liquid filtration system of claim 16 , further comprising a handle fixture coupled to a first surface of the endcap, the handle fixture receiving the handle when the handle is in the second handle position.

18 . The liquid filtration system of claim 16 , wherein the handle is positioned substantially parallel to a first surface of the endcap when the handle is in the second handle position.