Marine propulsion system

Details Marine propulsion system Marine propulsion system

2011-04-26

2011-04-26

Venne, Daniel V (Department: 3617)

Marine propulsion

Engine, motor, or transmission control means

For transmission

Reexamination Certificate

active

07931513

ABSTRACT:
A marine propulsion system includes an outboard motor including an engine, a propeller, a shift position switching mechanism, an oil pump, valves, and an ECU. The shift position switching mechanism includes hydraulic clutches arranged to change the connection state between the engine and the propeller. The shift position switching mechanism is switchable among forward, reverse, and neutral. A first valve opens and closes the communication between the oil pump and a first hydraulic clutch. A second valve opens and closes the communication between the oil pump and a second hydraulic clutch. A third valve opens and closes the communication between the oil pump and each of third and fourth valves.

REFERENCES:
patent: 3587511 (1971-06-01), Buddrus
patent: 4125039 (1978-11-01), Helm
patent: 2006/0213301 (2006-09-01), Mizuguchi et al.
patent: 2006-264361 (2006-10-01), None

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