A marine propulsion system

Abstract

The disclosure relates to a marine propulsion system for a marine vessel, comprising an engine, a propeller unit comprising one or more propellers, a transmission arranged between the engine and the propeller unit, a hydraulic clutch arrangement. The clutch arrangement controls a power transfer between the engine and the propeller unit. The clutch arrangement comprises a clutch plate and a clutch piston. The clutch piston is actuated by a first hydraulic area and/or a second hydraulic area. The first hydraulic area is pressurized by an electrically controlled proportional pressure valve and the second hydraulic area is pressurized by an electrically controlled on/off valve. The control unit is operatively connected with the electrically controlled proportional pressure valve and the electrically controlled on/off valve, and is configured to control the electrically controlled proportional pressure valve and the electrically controlled on/off valve.

Dependencies are inferred from the claim text.