Lubrication system for outboard motor
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United States of America Patent
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Apr 23, 2013
Grant Date -
Aug 6, 2009
app pub date -
Mar 27, 2009
filing date -
Oct 19, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In an outboard engine, an upstream oil return path is connected to an oil passage upstream of an oil filter to return lubrication oil that is accumulated in the oil passage upstream of the oil filter to an oil pan. A downstream oil return path is connected to an oil passage downstream of the oil filter to return lubrication oil that is accumulated in oil passages and a main gallery downstream of the oil filter to the oil pan. The lubrication oil accumulated in a portion of an oil passage downstream of the oil filter is hindered from flowing to the outside even if the oil filter is removed when the engine is stopped.
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