Title:
MARINE DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO1997003876
Kind Code:
A3
Abstract:
A transmission for a stern drive planing power boat having an engine (18) inboard of and adjacent to the stern (16) of the boat and connected through the stern of the boat by means of a universal coupling (32) to a steerable outboard drive leg (30), comprises an epicyclic gearbox (50) mounted inboard on the rear of the engine with at least two alternative selectable gear ratios, and an output shaft (54) connected to the universal coupling. The lowest of the said ratios is a direct drive ratio permanently connected to the output shaft by a one-way clutch (64). Gear change control means may inhibit the selection of a higher gear ratio below a predetermined engine speed, automatically select the gear ratios in response to engine speed, and/or inhibit the selection of a higher gear when a reverse gear is selected.
Inventors:
SHEPPARD LYNN JOHN (GB)
Application Number:
PCT/GB1996/001684
Publication Date:
March 20, 1997
Filing Date:
July 15, 1996
Export Citation:
Assignee:
SHEPPARD LYNN JOHN (GB)
International Classes:
B63H5/125; B63H20/14; B63H20/20; B63H20/22; B63H23/06; B63H23/30; F16H3/54; B63H20/10; B63H20/12; (IPC1-7): B63H5/125; B63H23/30; B63H23/06; F16H3/54
Foreign References:
| AU408291B2 | 1970-12-03 | |||
| US4850911A | 1989-07-25 | |||
| GB874926A | 1961-08-16 | |||
| DE2544338A1 | 1977-04-14 | |||
| GB952371A | 1964-03-18 | |||
| GB1156317A | 1969-06-25 | |||
| FR1310217A | 1963-03-06 |
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