By means of pressure pulses applied to a column of liquid, e.g. by ignition of an air/gas or vapour mixture (B63H11/09)

(55664)

B63

Ships or other waterborne vessels; related equipment

(1762)

B63H

arine propulsion or steering (propulsion of air-cushion vehicles b60v0001140000; peculiar to submarines, other than nuclear propulsion, b63g; peculiar to torpedoes f42b0019000000)

(470)

B63H11

Effecting propulsion by jets, i.e. reaction principle (steering by jet action b63h0025460000; power plant per se, see the relevant classes);

(71)

B63H11/09

By means of pressure pulses applied to a column of liquid, e.g. by ignition of an air/gas or vapour mixture

(3)

Water-jet propulsion complex

Invention relates to ship water-jet propulsion complexes. Proposed complex comprises combustion chamber, expansion (hydraulic) chamber, hydraulic valve, nozzle block, fuel pump, fuel injector, spark plug, intake and exhaust valves, air and exhaust systems, turbo supercharger and air cooler. Expansion chamber is located below water level. Turbo supercharger is driven by energy of gases and, additionally, by motor.

Hydro-jet

Hydro-jet comprises combustion chamber, expansion (hydraulic) chamber, hydraulic valve and nozzle assembly. Expansion chamber is arranged below water level. Combustion and expansion chambers are communicated via one or several valves.

Two-rotor water-jet engine

Proposed engine comprises outer rotor to create outer liquid ring and inner rotor to create inner liquid ring that incorporates suction chamber and combustion chamber. Rotors rotational axes are located off center, while rotors run in one direction. When suction space stays in outer liquid ring low-pressure zone, it receives a portion of combustible mix. When said space displaces in high-pressure zone, said mix is forced into combustion chamber to be held by inner liquid ring. Ignition of compressed mix causes ejection of jet to start rotor running.

Another patent 2531416.