Patent ID: 8545279

Claim:
A marine propulsion system comprising: a tank adapted to hold fuel; an air compressor capable of generating compressed air; an engine in fluid communication with said tank so as to receive said fuel to operate said engine with, wherein said air compressor is powered by said engine; and at least one hot gas generator in fluid communication with said air compressor so as to receive at least a portion of said compressed air, said hot gas generator comprising: (a) a combustion chamber having an inlet and an outlet, said compressed air injected into said combustion chamber at said inlet, said combustion chamber adapted to produce hot gas; (b) at least one injection nozzle in fluid communication with said tank so as to receive said fuel, said injection nozzle positioned proximate to said inlet of said combustion chamber, said injection nozzle adapted to spray said fuel into said combustion chamber; and (c) an exhaust nozzle positioned at said outlet of said combustion chamber through which said hot gas produced in said combustion chamber is discharged from said hot gas generator, wherein a deflector with outwardly curved walls is positioned behind the nozzle and along a central longitudinal axis of the nozzle, and wherein said hot gas is discharged adjacent to the walls of the deflector such that said hot gas follow said walls thereby causing the intake of surrounding water into said hot gas adjacent said walls so as to produce thrust.