Liquid purification or separation – Diverse distinct separators – Including a filter
Patent
1996-08-27
1997-12-09
Savage, Matthew O.
Liquid purification or separation
Diverse distinct separators
Including a filter
2104165, 210438, 210440, 210442, 210DIG13, B01D 3526
Patent
active
056956371
ABSTRACT:
A combined full flow and bypass oil filter for internal combustion engines includes a generally cylindrical filter body and a generally cylindrical filter head which is threadedly attached to the filter body. The filter head includes an inlet and an outlet and the flow path between the inlet and outlet extends through the filter body. Disposed within the filter body is a generally cylindrical and hollow full flow filtering element and a generally cylindrical and hollow bypass filtering element. The incoming flow of lubricating oil passes through the outer diameter surfaces of the full flow and bypass filtering elements and exits from these filtering elements through their hollow interiors. Concentrically positioned in the exiting flow path of the full flow filter is a Venturi nozzle which creates a low pressure zone. An outlet flow conduit is disposed in flow cooperation with the exiting oil flow through the bypass filtering element and the exit opening of this flow conduit extending from the bypass filtering element is positioned within the low pressure zone of the Venturi nozzle. The pressure differential across the two filtering elements creates a forced flow through the bypass filtering element and the filtered oil through both elements combines as part of a single flow loop.
REFERENCES:
patent: 2843268 (1958-07-01), Kennedy
patent: 4655914 (1987-04-01), Wada
patent: 4738776 (1988-04-01), Brown
patent: 4885082 (1989-12-01), Cantoni
Hedgecough Sargeon Billy
Jiang Zemin
Lanius Mike B.
Loftis Ted S.
Motlow Erika B.
Fleetguard Inc.
Savage Matthew O.
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