Filter element and assembly with continuous drain

Details Filter element and assembly with continuous drain Filter element and assembly with continuous drain

2005-06-21

2005-06-21

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

C123S573000

Reexamination Certificate

active

06907869

ABSTRACT:
A closed crankcase emission control assembly for an internal combustion engine includes a filter assembly comprising a housing and a replaceable filter element. The filter element includes a ring of filter media; a first annular end cap sealed to one end of the media ring; a second end cap sealed to another end of the media ring; a cup-shaped valve pan fixed to the second end cap and which together therewith defines a sump container; and an opening with a lip seal in the valve pan which closely receives a standpipe from the housing to allow continuous drainage of oil collected by the filter element. The filter housing includes an inlet port to receive blow-by gasses from the engine crankcase, and an outlet port to provide the substantially oil and particulate free gasses to an induction system (e.g. a turbocharger) and back to the engine crankcase.

REFERENCES:
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patent: 4401093 (1983-08-01), Gates, Jr. et al.
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patent: 5201301 (1993-04-01), Re
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patent: 6261333 (2001-07-01), Dickson
patent: 6530969 (2003-03-01), Gieseke et al.
patent: 2001/0054418 (2001-12-01), Burgess
patent: 2002/0033009 (2002-03-01), Gieske et al.

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