Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1986-10-07
1987-06-16
Cross, E. Rollins
Internal-combustion engines
Lubricators
Crankcase, pressure control
123196R, 210168, 184 621, F01M 100
Patent
active
046729321
ABSTRACT:
An apparatus for filtering the oil flow of an engine. The apparatus includes a full-flow filter, whose forward end is adapted to permit use of the full-flow filter either with or without a by-pass filter. The rear end of the full-flow filter is attached to an oil filter bushing, in the same manner as the typical spin-on type oil filter. If the user desires to use the full-flow filter with the by-pass filter, a small hole may be punched in the forward end of the full-flow filter. From this hole, a small portion of oil flows through a connecting hose into the by-pass filter. This small portion of oil is then filtered by the by-pass filter and flows out of the by-pass filter through a second connecting hose to an existing oil system line access, such as the drain pan plug, oil filter cap, or engine valve cover. The by-pass filter is mounted to the engine with a sleeve having grommets. A method of retrofitting an engine for use with the full-flow filter and by-pass filter is also provided.
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Cross E. Rollins
Encon Systems, Ltd.
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