Engine oil filter

Details Engine oil filter Engine oil filter

2008-07-08

2008-07-08

Popovics, Robert James (Department: 1797)

Liquid purification or separation

Processes

Separating

C210S180000, C210S184000, C210SDIG017, C123S1960AB

Reexamination Certificate

active

11899535

ABSTRACT:
An engine oil filter assembly and method for removing solid and liquid contaminants from engine oil. After solid contaminants are removed by passing the oil under engine pressure upwardly through a fibrous filter element within a lower portion of a canister, the oil is then forced through a separator after which the filtered oil under pressure decompresses. A lid having a downwardly sloping central portion is closely spaced above a similar sloping central portion of the separator to define a heating channel therebetween. A heating element in fluid isolation from the heating channel radiates heat through the central lid portion to vaporize liquid contaminants still in the oil, the vaporized contaminants discharging through a vapor vent in the lid, the decontaminated oil passing by gravity through the heating channel into a drain insert and back into the engine via an oil return port.

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