Lubrication system of a marine propulsion device

Details Lubrication system of a marine propulsion device Lubrication system of a marine propulsion device

2008-01-11

2010-12-14

Olson, Lars A (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

C123S1960CP, C184S006000

Reexamination Certificate

active

07850496

ABSTRACT:
A lubrication draining and filling system provides oil passages that direct a flow of liquid oil from a bottom region of an oil sump, located within a rotatable portion of the marine propulsion system, to a discharge port which is connectable in fluid communication with a device that can sufficiently lower the pressure at the discharge port to induce the upward flow of oil from the lower portion of the oil sump within the gear case. The cavity of the oil sump within the gear case is disposed within a rotatable portion of the marine propulsion device while the discharge port is located within a stationary portion of the marine propulsion device. A transitional region comprises a space located between the stationary and rotatable portions. The oil can therefore flow from a rotatable portion, into the space, and then from the space into the stationary portion which allows it to be removed from the marine propulsion device.

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