Outboard drive for boats

Details Outboard drive for boats Outboard drive for boats

2006-10-10

2006-10-10

Avila, Stephen (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

Reexamination Certificate

active

07118434

ABSTRACT:
Outboard drive unit for boats, including an underwater housing (6), in which two propeller shafts (7, 8) are mounted and are driven via a first bevel gearing (19, 20, 21) enclosed in the underwater housing, and a second bevel gearing (13, 14, 15) enclosed in a gear housing (11). With the aid of a mounting element (23) joined to the underwater housing and the gear housing, the drive unit can be mounted in an opening (2) in the bottom (1) of a boat hull, with the underwater housing on the outside and the gear housing on the inside of the hull. The mounting element forms a housing which defines, firstly, an oil reservoir (33) for the oil of the drive unit and, secondly, a surrounding chamber (36) through which engine cooling water flows and which is used for cooling the oil in the reservoir.

REFERENCES:
patent: 1840948 (1932-01-01), Harvey
patent: 3452704 (1969-07-01), Watkins
patent: 3707939 (1973-01-01), Berg
patent: 4040378 (1977-08-01), Blanchard
patent: 5002593 (1991-03-01), Ichishita et al.
patent: 5487688 (1996-01-01), Sumigawa
patent: 6561859 (2003-05-01), Towner et al.
patent: 514363 (2001-02-01), None

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