Shift assisting device for marine propulsion unit

摘要

Several embodiments of shift assisting devices for marine propulsion units wherein the torque of the engine is reduced if there is resistance to shifting by reducing the amount of fuel supplied to the engine. Embodiments are depicted and described wherein this is done by throttling the intake charge or reducing the supply of fuel supplied by a fuel injection nozzle and the principle is applied to either spark ignited or diesel engines.