Marine propulsion system

Details Marine propulsion system Marine propulsion system

2011-03-22

2011-03-22

Venne, Daniel V (Department: 3617)

Marine propulsion

Engine, motor, or transmission control means

For transmission

Reexamination Certificate

active

07909670

ABSTRACT:
A marine propulsion system includes an engine, propellers rotated by the engine, a transmission mechanism arranged to transmit a driving force of the engine to the propellers with a speed thereof shifted to at least a low speed reduction ratio or a high speed reduction ratio in forward travel and reverse travel, and a gear shift switch operable by a user to shift speed reduction ratios of the transmission mechanism to the low speed reduction ratio in at least the reverse travel. This arrangement provides a marine propulsion system in which both of acceleration performance and a maximum speed can approach levels that a user desires.

REFERENCES:
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patent: 5711742 (1998-01-01), Leinonen et al.
patent: 5888108 (1999-03-01), Iriono
patent: 6582259 (2003-06-01), Mansson et al.
patent: 7458866 (2008-12-01), Nakamura et al.
patent: 7762858 (2010-07-01), Suzuki et al.
patent: 09-263294 (1997-10-01), None

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