Marine propulsor cooling and lubricating system

Details Marine propulsor cooling and lubricating system Marine propulsor cooling and lubricating system

1994-08-23

1996-04-23

Swinehart, Edwin L.

Marine propulsion

Electric drive for propelling means

B60L 1102

Patent

active

055098304

ABSTRACT:
In a marine propulsor which includes an electric motor with a rotor, a bearing assembly supporting the rotor, and a plurality of propulsor blades and a blade assembly driven by the motor, improved cooling/lubricating system includes an inlet through which coolant/lubricant is supplied to the bearing assembly and the motor, a passage communicating with the inlet through which the coolant/lubricant flows, and an outlet located adjacent the trailing edge of the blade assembly through which the coolant/lubricant is expelled, whereby the expulsion of coolant/lubricant through the outlet provides additional forward thrust to the propulsor. The outlet may be located in the blade hub of the blade assembly or, alternatively, the outlet may comprise a plurality of holes located in the trailing edges of the blades of the blade assembly.

REFERENCES:
patent: 5078628 (1992-01-01), Garis, Jr.
patent: 5101128 (1992-03-01), Veronesi et al.
patent: 5185545 (1993-02-01), Veronesi et al.

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