초록 ▼

An orifice filter suitable for placement in, among other environments, a motor vehicle transmission assemblage, includes a plastic body member with an orifice and filtration material overlying both orifice outlets, all received within a metal housing. A plastic overmold is provided outboard of the f

An orifice filter suitable for placement in, among other environments, a motor vehicle transmission assemblage, includes a plastic body member with an orifice and filtration material overlying both orifice outlets, all received within a metal housing. A plastic overmold is provided outboard of the filtration material. The filter allows for bidirectional flow of fluid through the assembly, provides for a means of bleeding pressure between fluid volumes in an assemblage, and maintains the secure positioning of the orifice in the assemblage over a range of ambient and operating temperatures. Further, a method of forming a filter assembly, including coining the metal housing of the filter assembly, allows for providing proper dimensional tolerances of the housing axial length and/or housing flange.

대표청구항 ▼

[ What is claimed is:] [1.] A filter assembly for filtering contaminants comprising:a) a generally cylindrical metal housing having a first base end,second base end, and a generally hollow interior,b) a plastic body member having an axis and received within said housing interior, said body member ha

[ What is claimed is:] [1.] A filter assembly for filtering contaminants comprising:a) a generally cylindrical metal housing having a first base end,second base end, and a generally hollow interior,b) a plastic body member having an axis and received within said housing interior, said body member having an orifice with first and second outlets in fluid communication therewith and said orifice extending through said body member,c) filtration material with said body member therebetween, said filtration material thereby overlying and in fluid communication with respective the first and second orifice outlets, andd) a plastic overmold extending into the interior of said housing and having an outboard first flow channel therethrough directing fluid from outside the filter assembly to fluidly communicate with said filtration material overlying the first orifice outlet and an outboard second flow channel therethrough directing fluid from outside the filter assembly to fluidly communicate with said filtration material overlying the second orifice outlet.