CN117360747A - Underwater power system of ship - Google Patents

Underwater power system of ship Download PDF

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Publication number
CN117360747A
CN117360747A CN202311584397.9A CN202311584397A CN117360747A CN 117360747 A CN117360747 A CN 117360747A CN 202311584397 A CN202311584397 A CN 202311584397A CN 117360747 A CN117360747 A CN 117360747A
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CN
China
Prior art keywords
jet
cavity
air
power system
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311584397.9A
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Chinese (zh)
Inventor
卢均治
陈家龙
代刚位
蔡锴滨
刘美
梁艺篮
杨裕文
范婷婷
曹家颖
郭志伟
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Guangdong University of Petrochemical Technology
Original Assignee
Guangdong University of Petrochemical Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong University of Petrochemical Technology filed Critical Guangdong University of Petrochemical Technology
Priority to CN202311584397.9A priority Critical patent/CN117360747A/en
Publication of CN117360747A publication Critical patent/CN117360747A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/12Marine propulsion by water jets the propulsive medium being steam or other gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/01Marine propulsion by water jets having means to prevent foreign material from clogging fluid passage way

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention discloses an underwater power system of a ship, and belongs to the technical field of marine power equipment. This boats and ships power system under water is including locating the shell in the hull, still includes: the jet engine comprises a jet engine shell and a jet pipe, wherein the jet engine shell is arranged at the bottom of a ship, a cavity is formed between the inner wall of the jet engine shell and the outer wall of the jet pipe, the cavity is communicated with an annular jet port, the inner wall of the jet pipe is provided with a spiral guide plate, and one end of the spiral guide plate is arranged at the annular jet port; the air supply mechanism is arranged in the shell and communicated with the cavity, and is used for supplying high-pressure air to the cavity. The ship underwater power system does not depend on rotating parts such as a propeller and the like which are directly contacted with a water body to drive a ship body to move, and vortex water jet flows can be formed in the pipe holes of the air jet pipes, so that the risk that the power system is blocked by garbage in the water body is reduced to the greatest extent, and the ship underwater power system has higher reliability.

Description

Underwater power system of ship
Technical Field
The invention relates to the technical field of marine power equipment, in particular to an underwater power system of a ship.
Background
At present, the prior China patent with the publication number of CN212685138U discloses a dual-power system amphibious ship, which comprises a ship body and a power system positioned at the tail part of the ship body, wherein the power system comprises a water air propeller, an engine for driving the water air propeller and an underwater jet pump propeller; the underwater jet pump propeller is positioned in the Y-shaped channel, the Y-shaped channel is connected with the ship body, and the Y-shaped channel conducts the two sides and the rear side of the ship body; one end of a middle shaft of the underwater jet pump propeller penetrates out of the Y-shaped channel and is connected with an engine output shaft through a transmission system, and the device solves the technical problem that the existing ship cannot run under complex working conditions such as shoal, snowfield and the like due to the influence of draft and foreign matters in water.
Currently, conventional marine power systems generally employ propellers, pump-jet propellers, and the like. These power systems are not very suitable power systems for rescuing disaster-stricken personnel when installed on intelligent life-saving equipment, and high-speed rotating propeller power systems may hurt personnel, and pump-jet propellers may be blocked in water areas with relatively high garbage.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a ship underwater power system which does not depend on rotating parts such as a propeller which is directly contacted with a water body to drive a ship body to move, so that the risk of injury of personnel caused by the movement of the propeller which rotates at a high speed is avoided, the risk of blockage of the power system by garbage in the water body is reduced, and the ship underwater power system has higher safety and reliability.
The invention provides a ship underwater power system, which comprises a shell arranged in a ship body and further comprises:
the jet engine comprises a jet engine shell and a jet pipe, wherein the jet engine shell is arranged at the bottom of a ship, the jet pipe is arranged in the jet engine shell, the axial direction of the jet pipe is along the length direction of a ship body, a cavity is arranged between the inner wall of the jet engine shell and the outer wall of the jet pipe, the cavity is communicated with an annular jet port, the annular jet port is arranged underwater, the jet direction of the annular jet port faces the rear end of the ship body, the inner wall of the jet pipe is provided with a spiral guide plate, and one end of the spiral guide plate is arranged at the annular jet port;
the air supply mechanism is arranged in the shell and communicated with the cavity, and is used for supplying high-pressure air to the cavity.
Preferably, one end of the jet engine shell close to the rear end of the ship body is in sealing connection with one end of the jet pipe close to the rear end of the ship body, and the annular jet port is arranged on the inner wall of one end of the jet pipe close to the front end of the ship body.
Preferably, one end of the jet engine shell, which is close to the front end of the ship body, is provided with a conical pipe, the outer wall of the big hole end of the conical pipe is connected with the inner wall of the jet engine shell, which is close to the front end of the ship body, the small hole end of the conical pipe is inserted into one end of the jet pipe, which is close to the front end of the ship body, and the annular jet port is arranged on the outer wall of the small hole end of the conical pipe and the inner wall of the jet pipe, which is close to the front end of the ship body.
Preferably, the aperture of the end of the gas spraying pipe close to the conical pipe is smaller than that of the end of the gas spraying pipe far from the conical pipe.
Preferably, the gas spraying pipe is provided with a horn mouth at one end close to the conical pipe, and the annular gas spraying mouth is arranged between the inner wall of the horn mouth and the outer wall of the conical pipe.
Preferably, one end of the air ejector tube, which faces the front of the ship body, is provided with a conical filter screen.
Preferably, the air supply mechanism is an air multiplication machine, the air supply mechanism comprises an upper cavity, a lower cavity, a turbofan and a power device, the lower cavity is arranged in the shell, the turbofan is arranged in the lower cavity, the upper cavity is connected with the lower cavity, an air inlet is arranged at the upper end of the upper cavity, air outlets are formed in the side walls of the upper cavity and the lower cavity, the air outlets are communicated with the cavity, and the output end of the power device is connected with the turbofan.
Preferably, the lower cavity is arranged in the ship body, the air outlet is communicated with a ventilating duct, and the ventilating duct is communicated with the cavity.
Preferably, the power device is a brushless motor and is connected in the shell through a motor bracket.
Preferably, the air inlet of the upper cavity is provided with a protective cover.
Compared with the prior art, the invention has the beneficial effects that: the ship underwater power system does not depend on rotating parts such as a propeller and the like which are directly contacted with a water body to drive a ship body to move, and vortex water jet flows can be formed in the pipe holes of the air jet pipes, so that the risk that the power system is blocked by garbage in the water body is reduced to the greatest extent, and the ship underwater power system has higher reliability.
Through locating the inner wall that the jet is close to hull front end one end with annular jet, can drive more rivers and pass the tube hole of jet, not only can promote the driving efficiency of whole jet engine, can also promote the scouring force of rivers to rubbish to further prevent that rubbish from adsorbing the tube hole inner wall at the jet from causing the jet to block. Through setting up the horn mouth in conical tube one end, the rivers that can be in annular jet department form the turbulent flow to increase and prevent rubbish because the turbulent flow flows back into in the annular jet, cause annular jet to stop up, thereby further prevent that driving system from taking place to stop up. The aperture of one end of the air ejector close to the conical tube is smaller than that of one end of the air ejector far away from the conical tube, and water flow gradually diffuses when flowing through the air ejector, so that more water after driving the air ejector moves backwards to the ship body, and the driving efficiency of the whole power system is improved. Through setting up the horn mouth in conical tube one end, can prevent that annular jet from driving rivers and forming the turbulent flow in conical tube edge to the rivers that form the turbulent flow in annular jet department, thereby increase and prevent rubbish because the turbulent flow backward flow in the annular jet, cause annular jet to stop up, thereby further prevent that driving system from taking place to stop up. Through setting up the toper filter screen, this toper filter screen can block big object to further prevent that the object from blockking up the jet-propelled pipe tube hole.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic diagram of an explosive structure according to the present invention;
FIG. 3 is a schematic view of the internal structure of a jet engine according to the present invention.
Reference numerals illustrate:
1. the device comprises a shell, an upper cavity, a lower cavity, a turbofan, a protective cover, a motor bracket, a spiral guide plate, a jet engine shell, a jet pipe, a ventilating duct, a cavity, an annular jet port, a conical pipe, a bell mouth and a conical filter screen.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to fig. 1-3, but it should be understood that the scope of the present invention is not limited by the specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, the underwater power system of a ship provided by the invention comprises a shell 1 arranged in a ship body, and further comprises: the jet engine comprises a jet engine shell 8 and a jet pipe 9, the jet engine shell 8 is arranged at the bottom of a ship, the jet pipe 9 is arranged in the jet engine shell 8, the axial direction of the jet pipe 9 is along the length direction of the ship body, a cavity 11 is arranged between the inner wall of the jet engine shell 8 and the outer wall of the jet pipe 9, the cavity 11 is communicated with an annular jet port 12, the annular jet port 12 is arranged underwater, and the jet direction of the annular jet port 12 faces the rear end of the ship body; the air supply mechanism is arranged in the shell 1 and is communicated with the cavity 11, and the air supply mechanism is used for supplying high-pressure air to the cavity 11.
The working principle of the above embodiment will now be briefly described:
the annular air jet 12 is a circle of narrow gap of 1.3mm, when the power system is used, the common mechanism is opened, the air supply mechanism supplies high-pressure air to a cavity 11 between the inner wall of the jet engine shell 8 and the outer wall of the air jet pipe 9, the high-pressure air is ejected through the annular air jet 12, and because the annular air jet 12 is arranged underwater, the air jet direction of the annular air jet 12 faces the rear end of the ship body, the high-pressure air ejected from the annular air jet 12 pushes water body to the rear of the ship body, so that the water body below the ship body is pushed to the rear of the ship body, water flow towards the rear of the ship body is formed, and the reaction force exerted by the water body to the ship body pushes the ship body to advance forwards, so that the whole ship body is pushed to operate. In the process, the jet engine shell 8 and the jet pipe 9 are both arranged in the water body at the bottom of the ship, but because the jet engine of the system does not depend on rotating parts such as a propeller which is directly contacted with the water body to drive the ship body to move, the risk of injury to personnel caused by the movement of the propeller which rotates at a high speed is avoided, and the risk of blockage of a power system by garbage in the water body is reduced. When the high-pressure air sprayed by the annular air spraying port 12 drives water flow to flow through the spiral guide plate 716, under the action of the spiral guide plate 716, the water flow in the air spraying pipe 9 moves spirally to the rear of the ship body, so that vortex spraying water flow is formed, garbage fragments flowing into the pipe holes of the air spraying pipe 9 along with the water flow move spirally to the rear of the ship body under the action of centripetal force of the vortex spraying water flow, and therefore the garbage fragments cannot be attached to and adsorbed on the inner wall of the air spraying pipe 9, and the pipe holes of the air spraying pipe 9 are further prevented from being blocked.
According to the underwater power system of the ship, the ship body is driven to move without rotating parts such as the propeller which directly contacts with the water body, and vortex water jet flow can be formed in the pipe hole of the air jet pipe 9, so that the risk that the power system is blocked by garbage in the water body is reduced to the greatest extent, and the underwater power system has higher reliability.
On the basis of the embodiment, in order to improve the driving efficiency of the whole jet engine, the driving efficiency of the whole power system is improved.
As shown in fig. 1 and 3, one end of the jet engine casing 8 near the rear end of the ship body is in sealing connection with one end of the jet pipe 9 near the rear end of the ship body, and the annular jet port 12 is arranged on the inner wall of one end of the jet pipe 9 near the front end of the ship body.
The annular air jet 12 is arranged at one end of the air jet pipe 9 close to the front end of the ship body, when the annular air jet 12 jets air towards the rear end of the ship body, high-pressure air jetted by the annular air jet 12 passes through the pipe hole of the air jet pipe 9, more water flow can be driven to pass through the pipe hole of the air jet pipe 9 according to the Bernoulli principle, the flow speed of the water flow in the pipe hole of the air jet pipe 9 is increased, so that the driving efficiency of the whole jet engine can be improved, the scouring force of the water flow on garbage can be improved, and the blocking of the air jet pipe 9 caused by the garbage adsorbed on the inner wall of the pipe hole of the air jet pipe 9 is further prevented.
As a preferred solution, as shown in fig. 1 and 3, one end of the jet engine casing 8 near the front end of the hull is provided with a conical pipe 13, the outer wall of the big hole end of the conical pipe 13 is connected with the inner wall of the jet engine casing 8 near the front end of the hull, the small hole end of the conical pipe 13 is inserted into the air jet pipe 9 near the front end of the hull, and the annular air jet 12 is arranged on the outer wall of the small hole end of the conical pipe 13 and the inner wall of the air jet pipe 9 near the front end of the hull. Through setting up horn mouth 14 in conical tube 13 one end, horn mouth 14 cooperatees with conical tube 13 for high-pressure wind diffuses earlier in the cavity 11 between jet engine housing 8 and jet tube 9 and then converges, then discharges through annular jet 12, thereby can prevent annular jet 12 to drive rivers and form the turbulent flow in conical tube 13 edge, thereby the rivers at annular jet 12 form the turbulent flow, thereby increase and prevent rubbish because the turbulent flow backward flow is in annular jet 12, cause annular jet 12 to block up, thereby further prevent that driving system from taking place to block up.
As a preferred embodiment, as shown in fig. 1 and 3, the gas lance 9 has a smaller aperture at the end closer to the conical tube 13 than at the end farther from the conical tube 13. When water flows through the hole of the air spraying pipe 9, the aperture of one end of the air spraying pipe 9 close to the conical pipe 13 is smaller than that of one end of the air spraying pipe 9 far away from the conical pipe 13, and the water flows gradually spread when flowing through the air spraying pipe 9, so that more water flows after driving the air spraying pipe 9 to move backwards towards the ship body, and the driving efficiency of the whole power system is improved.
As a preferred solution, as shown in fig. 1 and 3, one end of the gas nozzle 9 near the conical tube 13 is provided with a bell mouth 14, and the annular gas nozzle 12 is disposed between the inner wall of the bell mouth 14 and the outer wall of the conical tube 13. Through setting up horn mouth 14 in conical tube 13 one end, horn mouth 14 cooperatees with conical tube 13 for high-pressure wind diffuses earlier in the cavity 11 between jet engine housing 8 and jet tube 9 and then converges, then discharges through annular jet 12, thereby can prevent annular jet 12 to drive rivers and form the turbulent flow in conical tube 13 edge, thereby the rivers at annular jet 12 form the turbulent flow, thereby increase and prevent rubbish because the turbulent flow backward flow is in annular jet 12, cause annular jet 12 to block up, thereby further prevent that driving system from taking place to block up.
As a preferred solution, as shown in fig. 1-3, the air lance 9 is provided with a conical filter screen 15 at its end facing the front of the hull. By arranging the conical filter screen 15, the conical filter screen 15 can block large objects, thereby further preventing the objects from blocking the pipe holes of the air injection pipe 9.
As a preferred scheme, as shown in fig. 1 and 2, the air supply mechanism is a multiplication air machine, the air supply mechanism comprises an upper cavity 2, a lower cavity 3, a turbofan 4 and a power device, the lower cavity 3 is arranged in the shell 1, the turbofan 4 is arranged in the lower cavity 3, the upper cavity 2 is connected with the lower cavity 3, an air inlet is arranged at the upper end above the upper cavity 2, air outlets are arranged on the side walls of the upper cavity 2 and the lower cavity 3, the air outlets are communicated with the cavity 11, and the output end of the power device is connected with the turbofan 4. The shell 1 is fixedly connected with the lower cavity 3 through a bolt, the upper cavity 2 is fixedly connected with the lower cavity 3 through a mortise-tenon structure, the lower cavity 3 and the turbofan 4 are assembled in a splicing way, and the bottom groove of the turbofan 4 is connected with the protruding part inside the lower cavity 3. When the jet engine is used, the power device drives the turbofan 4 to rotate, and when the turbofan 4 rotates at a high speed between the upper cavity 2 and the lower cavity 3, a large amount of air can be sucked from the air inlet, high-pressure air is formed between the upper cavity 2 and the lower cavity 3 and enters the cavity 11 of the jet engine through the air outlet, so that reliable high-pressure air is provided for the jet engine.
As a preferred solution, as shown in fig. 1 and 2, the lower cavity 3 is arranged in the ship body, the air outlet is communicated with a ventilation pipeline 10, and the ventilation pipeline 10 is communicated with the cavity 11. Through setting up the pipeline, ventilation duct 10 will supply air outlet and the cavity 11 intercommunication of fan mechanism, can set up the mounted position of air supply mechanism as required to promote whole driving system's suitability.
As a preferred solution, as shown in fig. 1 and 2, the power device is a brushless motor, and the power device is connected to the housing 1 through a motor bracket 6. The power device is fixedly connected in the shell 1 through the motor bracket 6, so that the fixing firmness of the power device can be improved, and the reliability of the device is further improved.
As a preferred solution, as shown in fig. 1 and 2, the air inlet of the upper cavity 2 is provided with a protective cover 5. The multiplication air machine shell 1 and the protection cover 5 are fixedly connected through a mortise and tenon structure. The multiplication air machine shell 1 and the protection cover 5 are fixedly connected through a mortise and tenon structure. Through setting up protection casing 5, protect the fan of high-speed rotation in the air supply mechanism to can prevent that the fan of high-speed rotation from injuring the user, promote this driving system's security.
The marine underwater power system utilizes the pressure difference caused by different flow rates of fluid, air entering the cavity 11 is continuously extruded and close to generate power, the underwater jet engine is connected with the multiplication air machine through the middle ventilating pipeline 10, the multiplication air machine drives the turbofan 4 through the high-number power device, a large amount of air is sucked from the upper part, the air which has formed a certain air flow enters and forms the cavity 11, the cavity 11 of the jet engine is thinner and is completely sealed, the air is continuously blown into the cavity 11 to a certain extent through the multiplication air machine to form certain air pressure, the air of the cavity 11 on the narrower side, namely the air of the cavity 11 on the right side, can force the air to move to the cavity 11 on the wider side, namely the cavity 11 on the left side, finally, the annular jet is continuously extruded to form annular jet flow, namely the flowing direction of liquid on the annular jet flow, and the annular jet flow pushes the liquid close to the inner side of the jet pipe 9, so that the liquid on the side has a certain flow rate. According to the bernoulli principle of fluid mechanics: the faster the flow speed, the smaller the fluid pressure, so that negative pressure liquid is generated, the liquid in front of the gas injection tube 9 is continuously supplemented due to the pressure difference, and a stream of liquid power is formed behind the slow gas injection tube 9, so that stronger power can be provided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The marine underwater power system comprises a shell (1) arranged in a ship body, and is characterized by further comprising:
the jet engine comprises a jet engine shell (8) and a jet pipe (9), wherein the jet engine shell (8) is arranged at the bottom of a ship, the jet pipe (9) is arranged in the jet engine shell (8), the axial direction of the jet pipe (9) is along the length direction of the ship body, a cavity (11) is formed between the inner wall of the jet engine shell (8) and the outer wall of the jet pipe (9), the cavity (11) is communicated with an annular jet port (12), the annular jet port (12) is arranged underwater, the jet direction of the annular jet port (12) faces the rear end of the ship body, a spiral guide plate (7) is arranged on the inner wall of the jet pipe (9), and one end of the spiral guide plate (7) is arranged at the annular jet port (12);
the air supply mechanism is arranged in the shell (1) and is communicated with the cavity (11), and the air supply mechanism is used for supplying high-pressure air to the cavity (11).
2. The marine underwater power system as claimed in claim 1, characterized in that the jet engine housing (8) is connected in a sealing manner to the jet pipe (9) at the end near the rear end of the hull, and the annular jet port (12) is provided on the inner wall of the jet pipe (9) at the end near the front end of the hull.
3. The marine underwater power system as claimed in claim 2, wherein the end of the jet engine housing (8) close to the front end of the hull is provided with a conical tube (13), the outer wall of the large hole end of the conical tube (13) is connected with the inner wall of the jet engine housing (8) close to the front end of the hull, the small hole end of the conical tube (13) is inserted into the air jet tube (9) close to the front end of the hull, and the annular air jet (12) is arranged on the outer wall of the small hole end of the conical tube (13) and the inner wall of the air jet tube (9) close to the front end of the hull.
4. A marine submerged power system as claimed in claim 3, characterized in that the gas lance (9) has a smaller aperture at the end closer to the conical pipe (13) than at the end farther from the conical pipe (13).
5. The marine underwater power system as claimed in claim 4, characterized in that the gas injection tube (9) is provided with a bell mouth (14) near one end of the conical tube (13), and the annular gas injection port (12) is arranged between the inner wall of the bell mouth (14) and the outer wall of the conical tube (13).
6. Marine underwater power system as claimed in claim 1, characterized in that the gas lance (9) is provided with a conical filter screen (15) at its end facing the front of the hull.
7. The marine underwater power system as claimed in claim 1, wherein the air supply mechanism is a multiplication air machine, the air supply mechanism comprises an upper cavity (2), a lower cavity (3), a turbofan (4) and a power device, the lower cavity (3) is arranged in the shell (1), the turbofan (4) is arranged in the lower cavity (3), the upper cavity (2) is connected with the lower cavity (3), an air inlet is arranged at the upper end of the upper cavity (2), air outlets are arranged on the side walls of the upper cavity (2) and the lower cavity (3), the air outlets are communicated with the cavity (11), and the output end of the power device is connected with the turbofan (4).
8. Marine underwater power system as claimed in claim 7, characterised in that the lower cavity (3) is provided in the hull, the air outlet being in communication with a ventilation duct (10), the ventilation duct (10) being in communication with the cavity (11).
9. Marine underwater power system as claimed in claim 7, characterised in that the power means is a brushless motor, the power means being connected to the housing (1) by means of a motor bracket (6).
10. Marine underwater power system as claimed in claim 1, characterised in that the inlet of the upper cavity (2) is provided with a hood (5).
CN202311584397.9A 2023-11-25 2023-11-25 Underwater power system of ship Pending CN117360747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311584397.9A CN117360747A (en) 2023-11-25 2023-11-25 Underwater power system of ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311584397.9A CN117360747A (en) 2023-11-25 2023-11-25 Underwater power system of ship

Publications (1)

Publication Number Publication Date
CN117360747A true CN117360747A (en) 2024-01-09

Family

ID=89404314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311584397.9A Pending CN117360747A (en) 2023-11-25 2023-11-25 Underwater power system of ship

Country Status (1)

Country Link
CN (1) CN117360747A (en)

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