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A filter cartridge includes a filter housing having a main housing portion and a removable end closure defining a filter element cavity. The main housing portion includes an open annular end having an in-turned annular lip with a series of receiving slots formed in the inner surface of the lip. A fi

A filter cartridge includes a filter housing having a main housing portion and a removable end closure defining a filter element cavity. The main housing portion includes an open annular end having an in-turned annular lip with a series of receiving slots formed in the inner surface of the lip. A filter element is disposed within the housing cavity and includes an end cap with a series of axially-extending drive pins, and an axially-extending stand-off device, where the drive pins are axially longer than the stand-off device. A mounting hub having a central threaded collar for attachment to a base is disposed between the outer surface of the end cap and the lip of the main housing portion. The mounting hub includes a series of orientation through-holes which correspond to the location of the drive pins on the end cap. The orientation pins project through the through-holes in the mounting hub and are received in the receiving slots in the main housing portion to fix the mounting hub against rotation within the filter housing. The housing can then be spun-on to the base. The axially-extending stand-off device separates the mounting hub from the end cap to provide a flow path therebetween, and allow fluid to flow through outer through-holes in the mounting hub to the peripheral region of the filter element. The fluid can then flow radially-inward through the element, and through a central through-bore in the collar of the mounting hub to the base.

대표청구항 ▼

[ What is claimed is:] [1.] A filter element removeably positionable within a housing formed by mating housing portions, the filter element comprising:tubular filter media circumscribing a central axis and defining a central cavity, said filter media having a first end and a second end;a first end c

[ What is claimed is:] [1.] A filter element removeably positionable within a housing formed by mating housing portions, the filter element comprising:tubular filter media circumscribing a central axis and defining a central cavity, said filter media having a first end and a second end;a first end cap affixed to the first end of the filter media and a second end cap affixed to the second end of the filter media, said first end cap including an annular portion secured directly to the first end of the filter media and defining a central opening into the central cavity of the filter media, at least one drive pin disposed on an outer surface of the annular portion and extending axially away from the first end cap, and a stand-off device also disposed on the outer surface of the annular portion and extending axially away from the first end cap, said stand-off device fixedly secured directly to the annular portion of said first end cap, and said drive pin having a greater axial length than the stand-off device wherein said stand-off device is located along the annular portion of the first end cap radially inward from the at least one drive pin and is spaced radially outwardly apart from said central opening.