Spin-on filter assembly with replaceable coreless element

A spin-on filter assembly with replaceable coreless element comprising:

• a reusable spin-on housing including a filter bowl having sealing structure on a bottom of the filter bowl and a sealing structure on a top of the filter bowl;
• a center support tube integral with the filter bowl and including a perforated tube extending along a central axis and an upper portion having an threaded coupling allowing for the filter assembly to threaded into position and an exterior sealing structure;
• a replaceable coreless filter element mounted on the center support tube within the filter bowl and having filter media, and a lower sealing structure configured to engage with the sealing structure on the bottom of the filter bowl, wherein the sealing structure on a bottom of the filter bowl includes a sealing face on the bottom of the filter bowl that seals against a radial seal forming the lower sealing structure of the filter element, wherein the sealing face forming the sealing structure on a bottom of the filter bowl has a non-circular profile in a plane perpendicular to the central axis, and wherein the radial seal forming the lower sealing structure of the filter element has a complementary shape in a plane perpendicular to the central axis.

A reusable spin-on housing for use with a replaceable coreless element including a filter bowl having sealing structure on a bottom of the filter bowl and a sealing structure on a top of the filter bowl and a center support tube integral with the filter bowl and including a perforated tube and an upper portion having an threaded coupling allowing for the filter assembly to threaded into position and an exterior sealing structure, wherein the center support tube is metal and molded to be integral with the filter bowl, and wherein the center support tube includes a radially extending base flange over-molded into the base of the filter bowl, and wherein extending from the base flange of the center support tube is a perforated tube that forms the core for the coreless filter element, and wherein the upper portion of the center support tube is above the core forming component and includes an interior threaded coupling forming the threaded coupling.