Oil pump inlet screen assembly
AssigneeSealed Power Corporation
InventorsDavid L. Anderson, A. David Joseph
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Abstract
In an oil pump inlet screen assembly adapted to be immersed in an oil sump and comprising a filter screen including a housing and a lift pipe adapted to be inserted at one end into an oil pump opening, the improvement wherein the housing and lift pipe are molded integrally of plastic material, and wherein the screen assembly further comprises a metal eyelet received over the pipe end and adapted to be press-fitted into the pump opening. The eyelet includes coaxial cylindrical portions respectively disposed internally and externally of the pipe end and an external flanged end portion which captures a circumferential rib on the outside of the pipe both to retain the eyelet on the pipe end and to function as a stop to limit press-fit insertion of the pipe end into the pump opening.
Claims5
In an oil pump inlet screen assembly adapted to be immersed in an oil sump and comprising a filter screen including a housing, a pipe connected at one end to said housing and adapted to be received by press fit connection at the other end into an opening in an oil pump housing to feed oil from said sump through said housing and pipe to said pump, the improvement wherein said housing and pipe are molded integrally of thermoplastic material having poor dimensional stability due to characteristics of said material such as cold flow or hygroscopy, and wherein said screen assembly further comprises a one-piece metal eyelet received over said other pipe end in structural engagement with the inner and outer walls of said other pipe end and adapted for press-fit engagement with a said pump opening in sealing engagement with both said pipe end and said pump opening.
Dependencies are inferred from the claim text.