CN116552766A - Combined pump spraying propeller - Google Patents

Combined pump spraying propeller Download PDF

Info

Publication number
CN116552766A
CN116552766A CN202310515406.2A CN202310515406A CN116552766A CN 116552766 A CN116552766 A CN 116552766A CN 202310515406 A CN202310515406 A CN 202310515406A CN 116552766 A CN116552766 A CN 116552766A
Authority
CN
China
Prior art keywords
propeller
pump
water inlet
engine
spray
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
CN202310515406.2A
Other languages
Chinese (zh)
Inventor
袁野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University of Science and Technology
Original Assignee
Jiangsu University of Science and 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 Jiangsu University of Science and Technology filed Critical Jiangsu University of Science and Technology
Priority to CN202310515406.2A priority Critical patent/CN116552766A/en
Publication of CN116552766A publication Critical patent/CN116552766A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/10Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/103Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H5/00Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H5/00Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a combined pump-jet propeller which comprises a main body, wherein a water inlet cavity is formed in the main body, and a water inlet hole is formed in the surface of the main body and communicated with the water inlet cavity. This propeller is spouted to combination formula pump for the work of propeller is spouted to the auxiliary pump through setting up, thereby strengthen the propulsive force to the boats and ships, thereby accelerate boats and ships travel speed, six to ten have been seted up to the inlet opening, can prevent that the inlet opening from being stopped up simultaneously, influence the propeller work, the water inlet department of inlet opening all is provided with the arc recess, the propeller when removing, rivers form the circulation easily when the arc recess, the convenience clear up the water inlet of the inlet opening in the arc recess, the internally mounted of inlet opening has the filter screen, can prevent that impurity from getting into inside the device, influence the work of propeller, through starting the clearance engine, can accelerate the rivers velocity of main part surface, the convenience is further clear up inlet opening and filter screen, guarantee that the water inlet is unobstructed.

Description

Combined pump spraying propeller
Technical Field
The invention relates to a ship propeller, in particular to a combined pump jet propeller.
Background
The pump-jet propeller for ship is a propulsion mode for jetting water from nozzle at high speed to generate thrust force, and is usually composed of pump, jet pipe, control valve and drive mechanism. First, water enters the pump from the surrounding environment and is then compressed into the nozzle, and finally ejected at a high velocity, thereby generating a reaction force to drive the boat in motion. Unlike traditional propeller propulsion, the water jet propulsion can achieve more flexible movement by controlling water flow and spray angle. The water jet propulsion device has the advantages of energy conservation, sensitive response, low noise and the like, can finish the propulsion of the ship body with few water inlet pipelines, can output larger thrust, and is suitable for various ships.
Existing pump jet propellers are also commonly provided with propellers to enhance the propulsion of the ship so as to accelerate the ship running speed, but the combined propeller has some disadvantages, such as:
1. the propeller needs a larger space when in work, so the combined propeller is large in volume, the propeller is easy to touch a submerged reef in a shallow water area, navigation of a ship is influenced, and the blades of the propeller are damaged when serious;
2. the water inlet of the pump jet propeller easily enters sundries, the normal operation of the engine inside is affected, and the rotating blades of the engine are easily damaged.
Disclosure of Invention
The invention aims to: in view of the above problems, an object of the present invention is to provide a combined pump and spray propeller, which further prevents the occurrence of damage while ensuring power.
The technical scheme is as follows: the utility model provides a combination formula pump spouts propeller, including the main part, the water spray tail pipe, rectifying plate one, pump erupts the engine, supplementary rotary vane, the inside of main part is equipped with the intake chamber, outside circumference interval is equipped with a plurality of inlet ports that are linked together with the intake chamber, on the outer wall of main part, an arc recess has all been seted up at every inlet port's periphery, the pump erupts the engine and installs in the intake chamber inside, the water spray tail pipe is installed in the afterbody of main part and is linked together with the intake chamber, rectifying plate one is installed in the water spray tail pipe inside and is close to its end, supplementary rotary vane is to axisymmetric interval installation on the outer peripheral face of main part.
Further, the propeller further comprises a cleaning engine which is embedded and mounted on the main body, the cleaning engine comprises an engine stator and an engine rotor which are connected with each other, a plurality of paddles are fixedly mounted on the outer surface of the engine rotor, and the paddles are sequentially arranged at intervals on the periphery of the main body to form a circle.
Further, a pressurizing pipe cavity in a frustum shape is arranged in the water spraying tail pipe, the large end of the pressurizing pipe cavity is communicated with the water inlet cavity, the small end of the pressurizing pipe cavity is provided with a water outlet pipe orifice communicated with the water inlet cavity, and the first rectifying plate is arranged in the water outlet pipe orifice.
Optimally, the rectifying plate I is in a rice-shaped structure.
Further, the pump spray engine comprises a pump spray engine stator and an annular rotor, wherein the pump spray engine stator is arranged on the inner wall of the water inlet cavity, the annular rotor is arranged on the pump spray engine stator, and a plurality of rotor blades are arranged on the inner annular surface of the annular rotor at intervals.
Most preferably, the rotor blade is made of high strength carbon fiber material.
Further, auxiliary propeller includes connecting block, driving medium, telescopic link, screw propeller, and the connecting block is connected with the main part, and the screw propeller passes through two parallel interval setting's telescopic link and is connected with one side of connecting block, and the driving medium is installed in the connecting block inside, and the drive part of driving medium is articulated with the lateral surface of screw propeller.
Optimally, the driving medium includes waterproof motor, threaded rod, thread piece, guide arm, and the installation cavity has been seted up to the inside of connecting block, and one side of connecting block still is equipped with the spout with installation cavity intercommunication, and waterproof motor installs in the installation cavity inside, and the one end of threaded rod is rotated with the inner wall in installation cavity and is connected, and the other end is connected with waterproof motor's output, and the thread piece is installed on the outer peripheral face of threaded rod, and the one end and the thread piece of guide arm are articulated, and the other end passes the spout and articulated with the surface of screw propeller.
Furthermore, the propeller further comprises a second rectifying plate, wherein the second rectifying plate is fixedly arranged on the inner wall of the water inlet cavity, and the second rectifying plate is arranged in front of the water inlet of the pump jet engine.
Optimally, the number of the water inlet holes is 6-10, and each water inlet hole is respectively provided with a filter screen.
The beneficial effects are that: compared with the prior art, the invention has the advantages that:
1. according to the combined pump-jet propeller, the auxiliary propeller is arranged and used for assisting the pump-jet propeller to work, so that the propelling force on a ship is enhanced, and the ship running speed is accelerated.
2. This propeller is spouted to combination formula pump, six to ten have been seted up to the inlet opening, can prevent that the inlet opening from being stopped up simultaneously, influence the propeller work, the water inlet department of inlet opening all is provided with the arc recess, the propeller is when removing, rivers form the circulation easily when the arc recess, the convenience is cleared up the water inlet of the inlet opening in the arc recess, the internally mounted of inlet opening has the filter screen, can prevent impurity entering device inside, influence the work of propeller, through starting the clearance engine, can accelerate the rivers velocity of flow of main part surface, the convenience is further clear up the water inlet of inlet opening and filter screen, guarantee the unobstructed of water inlet.
3. This combination formula pump spouts propeller, when carrying out the during operation in the open sea, through starting waterproof motor, conveniently adjust the interval between propeller and the main part, guarantee the normal work of propeller, when the propeller removes to the front sea or coast, close the propeller, the rethread reverse start waterproof motor drives the propeller and is close to the main part, reduce the holistic required space of device, prevent that the propeller from touching the submerged reef, influence the navigation of boats and ships.
4. The combined pump jet propeller has the advantages that the rotor blades are made of high-strength carbon fiber materials, and the high-strength carbon fiber plates have various excellent performances such as light weight, high strength, high rigidity, high wear resistance, high temperature resistance and the like, so that the service life of the rotor blades can be prolonged, the weight of the rotor blades can be reduced, the rotating speed of the rotor blades can be improved, and the power of the propeller can be improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a cleaning engine according to the present invention;
FIG. 3 is a schematic view of a cut-away structure of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 3A;
FIG. 5 is a schematic perspective view of an auxiliary propeller;
FIG. 6 is a schematic view of the structure of the auxiliary propeller section;
FIG. 7 is a schematic illustration of an annular rotor configuration of a pump spray engine;
FIG. 8 is a schematic view of the structure of the water spray tailpipe;
fig. 9 is a top view of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and to specific embodiments, it being understood that these embodiments are only intended to illustrate the invention and are not intended to limit the scope thereof.
A combined pump jet propeller is shown in figures 1-9, and comprises a main body 1, a water jet tail pipe 3, a first rectifying plate 4, a pump jet engine, an auxiliary propeller 8 and a second rectifying plate 10.
The inside of the main body 1 is provided with a water inlet cavity 2, and a plurality of water inlet holes 7 communicated with the water inlet cavity 2 are circumferentially arranged at intervals outside, so that the propeller can absorb water conveniently. An arc-shaped groove 6 is formed in the outer wall of the main body 1 and the periphery of each water inlet hole 7, and when the propeller moves, water flows through the arc-shaped groove 6 to easily form circulation, so that the water inlet of the water inlet hole 7 in the arc-shaped groove 6 is conveniently cleaned. The number of the water inlets 7 is 6-10, so that the water inlets can be prevented from being blocked at the same time, the work of the propeller is influenced, and the filter screen 71 is respectively arranged on each water inlet 7, so that impurities can be prevented from entering the device, and the work of the propeller is influenced.
The pump jet engine and the rectifying plate II 10 are respectively arranged in the water inlet cavity 2, the pump jet engine comprises a pump jet engine stator 51 and an annular rotor 52, the pump jet engine stator 51 is arranged on the inner wall of the water inlet cavity 2, the annular rotor 52 is arranged on the pump jet engine stator 51, a plurality of rotor blades 53 are arranged on the inner annular surface of the annular rotor 52 at intervals, after the pump jet engine is started, the annular rotor 52 is driven to rotate, the annular rotor drives the rotor blades 53 to rotate, water is conveniently sucked, pressurized and sprayed, and the device is driven to move; the rotor blade 53 is made of high-strength carbon fiber materials, and the high-strength carbon fiber board has various excellent performances such as light weight, high strength, high rigidity, high wear resistance, high temperature resistance and the like, so that the service life of the rotor blade 53 can be prolonged, the weight of the rotor blade 53 can be reduced, the rotating speed of the rotor blade 53 can be increased, and the power of the propeller can be increased. The inner wall of the water inlet cavity 2 is fixedly provided with the second rectifying plates 10, the second rectifying plates 10 are arranged at intervals on the inner ring of the water inlet cavity 2 and are positioned in front of the water inlet part of the pump jet engine, so that sucked water is rectified, and the water can be conveniently and rotationally pressurized subsequently.
The water spray tail pipe 3 is installed in the afterbody of main part 1 and communicates with intake cavity 2, and rectifying plate one 4 is installed in water spray tail pipe 3 inside and be close to its end, and the inside of water spray tail pipe 3 is equipped with and is the pressurization lumen 31 of frustum formula, and the big end and the intake cavity 2 intercommunication of pressurization lumen 31, the tip are equipped with the apopore 32 of intercommunication, and rectifying plate one 4 is installed in apopore 32, and rectifying plate one 4 is the rice font structure, conveniently carries out the rectification to the water spray and sprays, thrust unit removes.
The auxiliary propellers 8 are symmetrically arranged on the outer peripheral surface of the main body 1 at intervals in pairs, for example, a pair of auxiliary propellers 8 are arranged, namely, the symmetrically arranged auxiliary propellers 8 are respectively arranged on two opposite sides of the main body 1 and used for assisting the pump jet propeller to work, so that the propelling force on a ship is enhanced, and the ship running speed is accelerated. The auxiliary propeller 8 comprises a connecting block 81, a transmission piece, a telescopic rod 82 and a propeller 83, wherein the connecting block 81 is connected with the main body 1, the propeller 83 is connected with one side surface of the connecting block 81 through two telescopic rods 82 which are arranged at intervals in parallel, the transmission piece is arranged inside the connecting block 81, and the transmission part of the transmission piece is hinged with the outer side surface of the propeller 83. The driving medium includes waterproof motor 85, threaded rod 86, thread piece 87, guide arm 88, installation cavity 84 has been seted up to the inside of connecting block 81, one side of connecting block 81 still is equipped with the spout 89 with installation cavity 84 intercommunication, waterproof motor 85 installs in installation cavity 84 inside, the one end of threaded rod 86 is rotated with the inner wall of installation cavity 84 and is connected, the other end is connected with waterproof motor 85's output, thread piece 87 is installed on threaded rod 86's outer peripheral face, the one end and the thread piece 87 of guide arm 88 are articulated, the other end passes spout 89 and is articulated with the surface of screw propeller 83.
When working in open sea, through starting waterproof motor 85, drive threaded rod 86 and rotate, threaded rod 86 rotates through self, drive screw thread piece 87 and remove, screw thread piece 87 drives guide arm 88 and removes, guide arm 88 drives propeller 83 and removes, conveniently adjust the interval between propeller 83 and the main part 1, guarantee the normal work of propeller 83, when the propeller removes to the front sea or shore, close propeller 83, the rethread reverse starts waterproof motor 85, drive propeller 83 and be close to main part 1, reduce the holistic required space of device, prevent that the propeller from touching the submerged reef, influence the navigation of boats and ships, prevent that the paddle of propeller 83 from damaging.
In order to further accelerate the water flowing speed of the outer surface of the main body 1, as shown in fig. 2 and 3, the propeller further comprises a cleaning engine which is embedded on the main body 1, wherein the cleaning engine comprises an engine stator 91 and an engine rotor 92 which are connected with each other, a plurality of paddles are fixedly arranged on the outer surface of the engine rotor 92, and the paddles are sequentially arranged at intervals on the outer periphery of the main body 1. By starting the cleaning engine, the water flow speed of the outer surface of the main body 1 can be accelerated, the water inlet of the water inlet hole 7 and the filter screen 71 can be cleaned conveniently, and the smoothness of the water inlet is ensured.
The working principle of the combined pump-jet propeller is as follows: after the pump jet engine is started, the annular rotor 52 is driven to rotate, the annular rotor drives the rotor blades 53 to rotate, water is conveniently sucked into the pump jet engine to be sprayed out, the driving device is driven to move, the rotor blades 53 are made of high-strength carbon fiber materials, the high-strength carbon fiber plates have various excellent performances such as light weight, high strength, high rigidity, high wear resistance, high temperature resistance and the like, the service life of the rotor blades 53 can be prolonged, the weight of the rotor blades 53 can be reduced, the rotating speed of the rotor blades 53 is improved, the power of the propeller is improved, the auxiliary propellers 8 are symmetrically arranged at two sides of the main body 1 and used for assisting the operation of the pump jet propeller, the propelling force on a ship is enhanced, the ship running speed is accelerated, when the pump jet engine works in open sea, the waterproof motor 85 is started, the threaded rod 86 is driven to rotate through the threaded rod 86, the threaded block 87 is driven to move through the rotation of the threaded rod 86, the screw thread block 87 drives the guide rod 88 to move, the guide rod 88 drives the propeller 83 to move, the distance between the propeller 83 and the main body 1 is conveniently adjusted, the normal work of the propeller 83 is ensured, when the propeller moves to the front sea or the shore, the propeller 83 is closed, the waterproof motor 85 is reversely started to drive the propeller 83 to approach the main body 1, the whole required space of the device is reduced, the propeller is prevented from touching a submerged reef, the navigation of a ship is influenced, the damage of paddles of the propeller 83 is prevented, six to ten water inlets 7 are formed, the water inlets can be prevented from being blocked at the same time, the work of the propeller is influenced, arc grooves 6 are formed at the water inlets of the water inlets 7, when the propeller moves, water flows easily to form circulation when passing through the arc grooves 6, the water inlets of the water inlets 7 in the arc grooves 6 are conveniently cleaned, the internally mounted of inlet opening 7 has filter screen 71, can prevent that impurity from getting into inside the device, influences the work of propeller, through starting the clearance engine, can accelerate the rivers speed of main part 1 surface, and the convenience is further clear up inlet opening 7's water inlet and filter screen 71, guarantees the unobstructed of water inlet.

Claims (10)

1. A combination pump jet propulsion, characterized in that: including main part (1), water spray tail pipe (3), rectifying plate one (4), pump eruption engine, supplementary rotary vane (8), the inside of main part (1) is equipped with intake chamber (2), outside circumference interval is equipped with a plurality of inlet ports (7) that are linked together with intake chamber (2), on the outer wall of main part (1), an arc recess (6) have all been seted up at the periphery of every inlet port (7), pump eruption engine installs in intake chamber (2) inside, water spray tail pipe (3) install in the afterbody of main part (1) and with intake chamber (2) intercommunication, rectifying plate one (4) install in water spray tail pipe (3) inside and be close to its end, supplementary rotary vane (8) are to axisymmetric interval installation on the outer peripheral face of main part (1).
2. A combined pump and spray propeller as claimed in claim 1, wherein: the cleaning engine is characterized by further comprising a cleaning engine which is embedded and mounted on the main body (1), wherein the cleaning engine comprises an engine stator (91) and an engine rotor (92) which are connected with each other, a plurality of paddles are fixedly mounted on the outer surface of the engine rotor (92), and the paddles are sequentially arranged at intervals on the periphery of the main body (1) to form a circle.
3. A combined pump and spray propeller as claimed in claim 1, wherein: the inside of the water spray tail pipe (3) is provided with a pressurizing pipe cavity (31) which is in a frustum shape, the large end of the pressurizing pipe cavity (31) is communicated with the water inlet cavity (2), the small end of the pressurizing pipe cavity is provided with a water outlet pipe orifice (32) which is communicated with each other, and the first rectifying plate (4) is arranged in the water outlet pipe orifice (32).
4. A combined pump and spray propeller according to claim 1 or 3, characterized in that: the first rectifying plate (4) is in a rice-shaped structure.
5. A combined pump and spray propeller as claimed in claim 1, wherein: the pump jet engine comprises a pump jet engine stator (51) and an annular rotor (52), wherein the pump jet engine stator (51) is arranged on the inner wall of the water inlet cavity (2), the annular rotor (52) is arranged on the pump jet engine stator (51), and a plurality of rotor blades (53) are arranged on the inner annular surface of the annular rotor (52) at intervals.
6. A combined pump and spray propeller as claimed in claim 5, wherein: the rotor blade (53) is made of high-strength carbon fiber materials.
7. A combined pump and spray propeller as claimed in claim 1, wherein: auxiliary propeller (8) include connecting block (81), driving medium, telescopic link (82), screw propeller (83), and connecting block (81) are connected with main part (1), and screw propeller (83) are connected with a side of connecting block (81) through telescopic link (82) of two parallel interval settings, and the driving medium is installed inside connecting block (81), and the drive part of driving medium is articulated with the lateral surface of screw propeller (83).
8. A combined pump and spray propeller as claimed in claim 7, wherein: the driving medium includes waterproof motor (85), threaded rod (86), screw thread piece (87), guide arm (88), installation cavity (84) has been seted up to the inside of connecting block (81), one side of connecting block (81) still is equipped with spout (89) with installation cavity (84) intercommunication, waterproof motor (85) are installed inside installation cavity (84), the one end of threaded rod (86) is rotated with the inner wall of installation cavity (84) and is connected, the other end is connected with the output of waterproof motor (85), screw thread piece (87) are installed on the outer peripheral face of threaded rod (86), the one end and the screw thread piece (87) of guide arm (88) are articulated, the other end passes spout (89) and with the surface hinge of screw propeller (83).
9. A combined pump and spray propeller as claimed in claim 1, wherein: the jet engine further comprises a second rectifying plate (10), the second rectifying plate (10) is fixedly arranged on the inner wall of the water inlet cavity (2), and the second rectifying plate (10) is arranged in front of the water inlet of the jet engine.
10. A combined pump and spray propeller as claimed in claim 1, wherein: the number of the water inlet holes (7) is 6-10, and a filter screen (71) is respectively arranged on each water inlet hole (7).
CN202310515406.2A 2023-05-09 2023-05-09 Combined pump spraying propeller Pending CN116552766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310515406.2A CN116552766A (en) 2023-05-09 2023-05-09 Combined pump spraying propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310515406.2A CN116552766A (en) 2023-05-09 2023-05-09 Combined pump spraying propeller

Publications (1)

Publication Number Publication Date
CN116552766A true CN116552766A (en) 2023-08-08

Family

ID=87499545

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310515406.2A Pending CN116552766A (en) 2023-05-09 2023-05-09 Combined pump spraying propeller

Country Status (1)

Country Link
CN (1) CN116552766A (en)

Similar Documents

Publication Publication Date Title
RU2372246C2 (en) Marine engine with body, installed under hull
KR101849312B1 (en) Mechanically driven, hubless, high-efficiency ship propulsor
US4832642A (en) Outboard boat propulsion installation
CN104527957B (en) Water spray peculiar to vessel T-shaped hydrofoil rudder
WO2004052721A3 (en) Variable marine jet propulsion
CN104608897A (en) Marine water spraying type propeller
JP3544545B2 (en) Ship drive with steering wheel propeller
CN101602401A (en) Thrust generating apparatus
KR20110050337A (en) Marine propelling system
CN205059973U (en) Water spray and mixed propeller of screw
CN201062091Y (en) Screw-propeller type water-spraying propulsion unit
US3056374A (en) Auxiliary steering and propulsion unit
CN111268064B (en) Super-speed cruising rescue speedboat with forward-inclined water attack angle
CN116552766A (en) Combined pump spraying propeller
WO2002030741A1 (en) Boat propulsion device
CN103786855A (en) Water-jet propulsion device provided with controllable-pitch propeller
RU2519610C1 (en) Manoeuvring propulsion device
CN211281428U (en) Ship propulsion system and ship
CN202923874U (en) Water-jet impeller device provided with controllable pitch propeller
CN114044117A (en) Propulsion device for ship
CN211810169U (en) Take screw device of defoaming function
CN103287560A (en) Turboprop reverse pressurization water-jet propeller
JP3767726B2 (en) Submersible
US20100297895A1 (en) Marine propulsion system
CN111186546B (en) Integrated water jet propulsion system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination