Marine propulsion-propulsion system

IPC classes for russian patent Marine propulsion-propulsion system (RU 2025406):

B63H11/02 - the propulsive medium being ambient water

B63H11 - Effecting propulsion by jets, i.e. reaction principle (steering by jet action B63H0025460000; power plant per se, see the relevant classes);

Another patents in same IPC classes:

Water jet / 2003586

Elektrogidroreaktivnogo ramjet engine / 2015061

The invention relates to the field of shipbuilding, in particular for ship propulsion plants

Electrohydraulically engine / 2015060

The invention relates to the field of shipbuilding, in particular for ship propulsion plants

Vortex propulsion / 2013308

The invention relates to shipbuilding, in particular to engines

Scuba wing e. n. boitsova / 2006413

The invention relates to shipbuilding, namely the wing devices hydrofoils, and is intended to improve the hydrodynamic quality of hydrofoil

Propulsion-propulsion system of the vessel kashevarova / 2003587

Water jet / 2003586

Reversible steering gear / 2244658

Proposed reversible steering gear has delivery branch pipe, water passages, deflectors, rudder stocks located in reversible steering box which is part of transom bulkhead. Astern running water passages are communicated with reversible steering box; they are formed by flat sheets and are rectangular in shape. One wall of water conduit is formed by vertical wall and opposite wall is formed by transom bulkhead. Reversible steering box has balancing dampers and semi-balancing deflectors.

Marine propeller "kalmar" / 2245279

Proposed marine propeller belongs to propellers with reciprocating working member-piston and is used on surface ships and habitable submarine ships. Operation of propeller is based on principle of motion of sea mollusk squid using pulse reaction jet of water. Used as drive for working member-piston is engine working both on hydraulic fluid and on compressed air delivered from high-pressure bottles. Engine is installed on watercraft hull in fore, midship and aft sections for controllable turn in horizontal or vertical plane, thus ensuring motion of watercraft in any direction.

Water-jet propulsion and steering complex / 2245818

Proposed complex includes water conduit, water intake, impeller with fairing of hub mounted on shaft, nozzle with circular inlet section, straightening unit including hydrodynamic streamlined profiled stanchions used for securing the hub fairing to nozzle and reversible steering gear consisting of swivel deflector located behind nozzle; lower portion of water intake is made in form of semi-circular profiled attachment. Cross sections of nozzle have form of circle segments after its inlet circular section at each section along axis downward of flow. Longitudinal section of walls of semi-circular part of water intake and lower parts of nozzle which is extension of water intake have hydrodynamically streamlined shape in form of wing profile whose rectilinear side is directed inside water conduit. Straightening unit is formed by walls of propeller nozzle, said fairing and profiled stanchions. Reversible steering gear is equipped with bounding plate located horizontally immediately after nozzle exit section at level of its upper wall. Free edges of said plate adjoin inner surface of swivel deflector. Reversible steering gear is provided with at least two rudders provided with drives and located vertically on either side within width of nozzle outlet section; rudders are located under bounding plate on which their stocks are installed.

Device enhancing propulsive parameters of water-jet engines / 2247058

Proposed device includes profiled water conduit, shroud, pump and outlet nozzle. At least one ring of wing profile is placed in water conduit formed between shroud in aft extremity of ship and ship's hull coaxially relative to central axis of ship. Convex surface of ring is directed to ship's bow. Lower surface of ring is provided with artificial roughness and plate-type interceptor arranged along smaller radius of ring. When use is made of several rings, ring of larger diameter extends forward to ship's bow and ring of lesser diameter extends the least. Projection of lifting force arising on ring mounted at definite angle of attack relative to flow is directed in way of motion forming additional thrust. Inlet part of water conduit has form of contraction tube. Skin on water conduit in area of mounting of ring (rings) is profiled according to surface of flow of liquid. Proposed device makes it possible to obtain additional thrust no less than 15-20% of propulsor thrust.

Water-jet propeller / 2256583

Proposed propeller has swivel nozzle connected with housing of straightening apparatus by means of ring with two pairs of pins located in mutually perpendicular planes of ring. Turn of nozzle in vertical and horizontal planes is effected by means of control crank whose sphere is received by hole of swivel nozzle control eye.

Water-jet propeller / 2266231

Proposed water-jet propeller includes water duct, impeller mounted on propeller shaft and enclosed in shell; hub of this impeller is made in form of body of revolution at lesser diameter at impeller inlet as compared with diameter at impeller outlet; impeller blades have curvilinear profile in cylindrical sections. Diameters of hub and water duct at inlet and outlet sections of blade system are selected from the following condition: where F_in and F_out are areas of hydraulic section of flow part bounded by hub and water duct walls at inlet and outlet of blade system; α_in.tang. and α_out.tang. are angles of inclination to plane of impeller disk which are tangential to center line of profile of blade cylindrical section passed through leading and trailing edges of blade. Such construction of propeller excludes abrupt reduction of thrust at development of cavitation on impeller blades and ensures stable operation at entrained air in hydraulic section of impeller.

Water-jet propeller / 2276041

The water-jet propeller has a water canal with a receiving tunnel, a rotor placed in a body and connected with a propeller shaft aligning an apparatus installed in a nozzle and a shaft bearing installed in the aligning apparatus behind the rotor. In the body of the rotor there is behind the rotor one hatch with a cover covering the whole plate of the rotor for assembly and disassembly of the rotor afloat, inspection and cleaning the grate of the water inlet of the tunnel. At that the fore flange of the rotor's body is fulfilled tapered for providing possibility for recovery of that body for its replacement and repair. In the water canal before the body of the rotor a refrigerator of the type " liquid-liquid" is installed. It is designed for cooling an engine putting the rotor into rotation. The shaft bearing may be fulfilled rubber-metal.

Water-jet propeller / 2276041

Propeller for sea-going ship (versions) / 2280587

According to first version, proposed propeller is provided with permanent magnets mounted on the outside of magnetic hull in form of parallel parallelepipeds secured by one pole on ship's hull in parallel with direction of motion; opposite poles are pressed to magnetically conducting plane. Electrodes are mounted on inter-pole planes inside rectangular cavities thus formed which are electrically insulated from material of magnets, ship's hull and magnetically-conducting plane. Electrodes are connected in pairs by their poles. According to second version, bow-shaped magnets are secured inside nonmagnetic hull of ship perpendicularly to direction of motion in line by alternating poles. Magnetically-conducting plane is opposite to hull. Electrodes connected with current source by their alternating poles are located between ship's hull and magnetically-conducting plane in parallel to direction of ship's motion.

Propeller for sea-going ship (versions) / 2280587

Method of and device for converting thermal energy of heated water into kinetic energy of reaction jet / 2281881

According to proposed method outside water is heated to temperature not exceeding saturation temperature of outside water at pressure, working medium, thus obtained, is accelerated to supersonic speed and then is mixed with cold outside water and discharged in form of reaction jet. Prior to reaching supersonic speed, mixture of working medium and cold outside water is discharge simultaneously in several flows into space with pressure lower than pressure of outside water. Device for implementing the method contains heater, accelerating nozzle for heated working medium, confusor mixing chamber connected with nozzle and at least one channel to discharge mixture of working medium and outside water connected check valve with mixing chamber. Accelerating nozzle is made with contour of supersonic nozzle for water heated to temperature not exceeding saturation temperature at pressure of outside water. Mixing chamber is provided with channels to let in cold outside water and outlet nozzle for flowing out reaction jet.

Ejector-nozzle device / 2307044

Invention relates to production of ejector-nozzle devices for hydrojet engines. Proposed device contains fixed unit-faceplate with axially sectionalized spaces, each connected with mains with liquid or gas under pressure by channels and holes. Movable unit contains multinozzle head with shank-shaft installed in central hole of faceplate. Movable subassembly contains flexibly deformable bushing with screw-shaped slots, and head nozzles are provided with tube tips installed for rotation. Shank-shaft is mechanically coupled with electric or hydraulic drive. Ring chamber arranged in one of sectionalized spaces is connected with mains to supply gaseous explosive mixture. Blind hole-socket is found on faceplate at one diameter with other holes, being connected with ring chamber by channel on way of which check valve with primer and cutoff-meter in form of rectangular spring-loaded plate with fitted in jet are built in. Nose of meter is in sliding contact with face surface of head which is provided with segment slots on one diameter with meter, depth of said slots corresponds to opening-closing stroke of meter jet hole. Device in form of monoblock is mounted in fairing housing compartment to which thin walled bushing - ejector tube is connected by means of pylons. Walls of said tube are made of screw-shaped relatively engaging tape strips and they form contraction-diffuser outline of tube whose discharge end face is mechanically coupled with ring hydraulic cylinder. Fairing is secured on watercraft by means of pylon. Power supply main lines of device are connected with stationary power supply sources and watercraft control panel through tunnel channel in pylon.

Electromagnetic propulsion device / 2327597

Electromagnetic propulsion device incorporates a housing with a water intake and discharge channel accommodating the main electrodes to generate current in electric field enveloping the said channel section and a device to generate a magnetic field oriented perpendicular to the said electric field to create the main Lorenz force. The propulsion device working channel incorporates, at least one pair of additional electrodes isolated from the main ones to ensure an electric breakdown of water and to create an additional Lorenz force aligned with the main one.

(57) Abstract:

Usage: shipbuilding, relates to marine propulsion-propulsion complexes pulse type. The inventive motor-propulsion system includes an engine with a cylindrical chamber, the float piston, combustion chamber, and intake and exhaust pipes, a rotary door, the position sensors of the piston and control system to ensure the water intake into the camera and aimed it is released under the action of the piston of the gaseous combustion products. 8 Il.

The invention relates to shipbuilding and can be used to provide movement of floating objects.

Known propulsion type "jet tube", operating on the principle of the pulsating gas stream. The mover comprises a combustion chamber with a fuel injection system, is connected by a pipeline with a compressed air system having an outlet opening at the entrance to the working chamber of the jet pipe, which is equipped with a return valves.

However, to reduce heat losses high frequency pulses and correspondingly small amounts of processed water, which leads to lowering the hydraulic Ccto as a reactive mass are mainly not the products of combustion, and the water carried them.

For this purpose, the combustion chamber is made spherical, the compressed air system made in the form of a dome-shaped camera mounted concentric with the combustion chamber and connected with the compressor working chamber has a piston rod and a spring, below which the working chamber is filled with water, while in the upper, lower and middle parts of the camera sensors are mounted position of the piston at the bottom of the chambers are equipped with anti-return valves intake pipe and the exhaust port which is connected with the pipe mounted coaxially with a gap in the jet pipe, and on all surfaces of the propulsion-propulsion complex in contact with products of combustion, applied heat-insulating coating.

In Fig.1 shows the stern of the vessel, longitudinal section; Fig.2 - section a-a in Fig. 1; Fig.3 - engine section (enlarged scale) of Fig.4 - section b-B in Fig.3; Fig.5 - section b-b In Fig. 3; Fig. 6 - section G-G in Fig.3; Fig.7 - cross section d-D in Fig.3; Fig.8 - section E-E in Fig.3.

Propulsion-propulsion system consists of the engine 1 and the output of the pipe 2 from the front and rear of the vessel, respectively, the axis of which is inclined is rmoval part of the ship. The outlet pipe 2 made under the aft end of the vessel 5 in combination with the steering device 7. The pipe 3 is beveled horizontal hole on the bottom aft of the ship.

Pipe 3 to the rear is a pipe for water extraction, filling the cylinder 8 of the engine is covered with a thermal insulating layer 9. At the junction of the pipes 2 and 3 inserted annular gap flow pipe 10. To fill the cylinder 8 water door 11 are pivoted on the axis 12. Under the float piston 13 in the lower part of the cylinder is installed, the door 14 can be rotated around the axis 15 and the overlapping pipe 16, having a diameter larger than the diameter of the neck 17, which connects the cylinder 8 with the pipes 2 and 3.

The engine 1 has a combustion chamber 18 spherical shape formed by the housing Golovnina 19, which is a dome camera 20 for compressed air, flowing through the pipe 21 from the compressor 22. In the combustion chamber 18 is installed nozzles 23 for injecting diesel fuel, which is supplied through the tubes 24. The combustion chamber 18 is connected to the camera 20 tubes 25, blocked by a valve 26 for the passage of compressed air into the chamber 18 in the fall it pressure below the pressure of the compressed air in the chamber 20 and chamber 18 is blocked by the piston 27 with the rod 28. In the cylinder 29 mounted spring 30, rests with its upper end in an end face of the piston 27 and the lower edge of the cylinder 29. The rod 28 by lowering the piston 27 is in the groove 31 and passes through the brake valve 32.

At the base 33 of Golovnina 19 completed the two slots 34, which connects the throat of the combustion chamber 18 with the upper part of the cylinder 8. The grooves 34 and the combustion chamber 18 and the wall of the cylinder 8, is covered with the insulating layer 9.

The base 33 is annular chamber 35 connected by pipe 21 to the compressor 22 and the tube 36 with camera 20.

From the top of the cylinder 8 depart two exhaust pipes 37, United over ugolovnikom 19 in one exhaust pipe 38. In the lower part of the tube 37 mounted valves 39, computer controlled.

In the lower part of the cylinder 8 on the outer surface of the insulating layer 9 has multiple mechanical sensors 40, which sends the electric signal to the control computer at the moment of passing around the piston 13.

On the bottom of the chamber 8 has a sensor 41 elektrosignal coming into the control computer at the moment touch his piston 13.

The same sensor 42 is installed on the upper end of the cylinder 8 formed by the lower surface/P> Engine work is done in two phases: working and training. During the preparatory phase is to fill the cylinder 8 water through the pipes 16 and neck 17 so that the piston 13 rises to the base 33 of Golovnina 19 and the exhaust gases above the piston 13 will be driven to the exhaust pipe 37, after which the valve 39 on the computer closes. The brake valve 32 is turned off and the piston 27 under the influence of spring 30 closes off the mouth of the combustion chamber 18.

The door 11 of the electric motor is rotated to the left, blocking the pipe 3. Opens the valve 26 and into the combustion chamber 18 is supplied with compressed air, heated in the chamber 20.

The camera 20 is also heated air through the tubes 36 of the annular chamber 35, into which it flows through the tube 21 from the compressor and cools the base 33 of Golovnina 19. In the chamber 20 is heated air from the chamber walls to a temperature at which ignition of the diesel fuel injected into the chamber 18 through a nozzle 23. At the moment of ignition of diesel fuel valves 26 of the tube 25 is closed under pressure of the formed gases. From this moment begins the working phase of the engine and the first cycle of camera operation SG the piston 13 reaches the sensor 40 elektrosignal, fitted in the lower part of the cylinder on the surface of the insulating layer 9. The electric signal received by the computer from the sensor 40, terminates the flow of commands to the nozzles 23 and releases the brake valve 32 on the piston rod 28 of the piston 27, which is under the influence of spring 30 closes off the mouth of the chamber 18. This overlap piston 27 is performed after the camera 18 will be exempt blowing from the exhaust gases.

The sensor 40 is installed so that the piston 13 has reached the lower end of the cylinder on which you installed the sensor 41, and the pressure on him of exhaust gases (not entering the cylinder from the chamber 18), not exceeding 2 atmospheres, i.e. when almost full use of their energy to a water propulsion device 2 after you stop working chamber 18 at the time of passage of the piston 13 of the sensor 40. The contact of the piston 13 and the sensor 41 ends the working phase of operation of the engine 1.

The ignition of the fuel in the chamber 18 6-8 times increases the pressure of the gas produced in the combustion of the fuel. The piston 27 under the influence of gas pressure in the chamber 18 retracts into the cylinder 29 and its shaft 28 seizes the brake valve 32 during the working phase.

Gases from the combustion chamber 18 rush on the water, under them. The water pressure tightly closes the door 14 and the water rushes through the neck 17 into the pipe 2.

Occurs, the thrust force is equal to the product of the pressure of the water in the mover 2 in the area of its cross section. This pressure creates an acceleration of the movement of water in the pipe 2, is directly proportional to pressure and inversely proportional to the mass of water found in the mover.

Once in the chamber 18, the pressure becomes less than the pressure in the chamber 20, the valve 26 opens and the camera 18 will begin to enter the compressed air from the chamber 20. One of the valve 26 has a contact plate which closes a circuit upon opening of the valve 26. Electrical impulse at the moment of closing the circuit enters the computer, which issues a command to the fuel injection into the chamber 18 through a nozzle 23. The time between the opening of the valve 26 and the fuel injection through the injector 23 is set sufficient to purge the chamber 18 in order to remove from it the exhaust gases. At this point ends the first cycle of operation of the combustion chamber and the second cycle begins her work.

At the moment of injection of fuel in the chamber 18 is ignited, the pressure in the chamber 18 increases, the valves 26 are closed (shut) and nonem pressure, required for water discharge from the pipe 2 at a given speed and to maintain the tractive effort at the level prescribed by the calculation engine and propulsion.

When in the chamber 18, the pressure will be less than in the chamber 20, the valve 26 opens, there will be a purge chamber 18 from the exhaust gases and the fuel injection will result in the second cycle of operation of the chamber 18 and will begin the third cycle of its operation in the sequence up until the piston 13 will not affect the sensor 40. At the time of the touch sensor 40 by the piston 13 will stop working chamber 18, will be released by valve 32 (computer signal) rod 28 and under the influence of spring 30, the piston 27 will block the mouth of the chamber 18. At the time of the touch sensor 41 of the piston 13 will end the working phase of operation of the engine 1 and will begin the phase of filling of the cylinder 8 with a water propulsion device 3. With this purpose, the control signal of the computer starts the motor turning in the door 11 is fully inserted in the right wall of the cap 17. This action is blocked pipe 2 and opens the access of water into the hopper 17 through the pipe 3. The water pressure in the pipe 16 when lifting piston 13 opens the door 14 and the cylinder 8 water starts flowing from the pipe 3 through the pipe 16.

On elektrosignal sensor is not affected by sensor 42. On elektrosignal sensor 42, the valves 39 exhaust pipes 37 are closed, the door 11 is shifted by the motor to the left, includes nozzle 23, is released the stem 28 of the valve 32 and starts the next phase of the operation of the engine 1.

When starting a cold engine 1 is heated compressed air entering into the chamber 20 and out into the chamber 18, to a temperature above the temperature required for ignition of the fuel.

Heating is produced in the electric furnace, which passes through the pipe 21 leading from the compressor to the camera 20. The cylinder 8 is skipped as much compressed air as necessary to ensure that the compressed air entering into the chamber 18, had the minimum time sufficient temperature to ignite the fuel. After the first-second ignition of the fuel in the chamber 18 of the heated air in the electric furnace stops (oven off) and starts working cycle of the working chamber 18. While crossing the hot compressed air in the cylinder 8 is the working phase of the propeller 2, the energy of compressed air.

MARINE PROPULSION-PROPULSION system that contains a combustion chamber with a fuel nozzle, is connected by a pipeline system JUA which is installed in the return flow valves, characterized in that the combustion chamber is made spherical, the compressed air system made in the form of a dome-shaped camera mounted concentric with the combustion chamber and connected with the compressor working chamber has a piston rod and a spring, below which the working chamber is filled with water, while in the upper, lower and middle parts of the camera sensors are mounted position of the piston at the bottom of the chambers are equipped with anti-return valves intake pipe and the exhaust port which is connected with the pipe mounted coaxially with a gap in the jet pipe, and on all surfaces of the propulsion-propulsion complex in contact with products of combustion, applied heat-insulating coating.