Engine control for planing boat

Details Engine control for planing boat Engine control for planing boat

1998-06-08

1999-10-19

Avila, Stephen

Marine propulsion

Means to control the supply of energy responsive to a sensed...

440 84, 440 89, B63H 2122

Patent

active

059678623

ABSTRACT:
An engine control for a planing-type boat having an engine powering a water propulsion unit is disclosed. The engine has an exhaust port leading from a combustion chamber for routing exhaust products therefrom and an exhaust timing valve cooperable with the exhaust port and movable between a first position for delaying the closing of said exhaust port and a second position for advancing the closing of said exhaust port. A valve control mechanism is provided for moving the valve. The engine control is arranged to control the position of the exhaust timing valve with the valve control mechanism. The engine control is arranged to move the valve towards the first position when acceleration of the engine is detected and a speed of the boat is below a planing speed.

REFERENCES:
patent: 5827096 (1998-10-01), Mineo
patent: 5885122 (1999-03-01), Fujimoto

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