CN116495155A - Booster-type propeller with high hydrodynamic benefits - Google Patents
Booster-type propeller with high hydrodynamic benefits Download PDFInfo
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- CN116495155A CN116495155A CN202310690774.0A CN202310690774A CN116495155A CN 116495155 A CN116495155 A CN 116495155A CN 202310690774 A CN202310690774 A CN 202310690774A CN 116495155 A CN116495155 A CN 116495155A
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- Prior art keywords
- cambered surface
- propeller
- motor
- wall
- guide pipe
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- 239000012530 fluid Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
- B63H5/15—Nozzles, e.g. Kort-type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a booster-type propeller with high hydrodynamic benefits, which comprises a guide pipe, a driving system, a first propeller, a second propeller and a rotating shaft, wherein the driving system is arranged on the inner wall of the guide pipe; the inner wall of first screw is equipped with first cambered surface, and the inner wall of second screw is equipped with the second cambered surface, and first cambered surface and second cambered surface are by the continuous shrink of front and back, make the whole pressure increase of screw for thereby the rotational speed scope that the screw normally used promotes and obtains higher propulsion power density. The invention changes the inner walls of the first propeller and the second propeller, thereby affecting the flow field in the conduit, increasing the hydrodynamic performance and solving the problems of large volume, large noise, low propulsion efficiency and the like of the traditional pushing machine.
Description
Technical Field
The invention relates to the technical field of propellers, in particular to a booster-type propeller with high hydrodynamic benefits.
Background
A propeller is a device that converts any form of energy into mechanical energy, half of which is thrust by rotating blades. The propeller can be applied to a plurality of devices, and can be used for driving vehicles to advance and also can be used as a power source of other devices such as a generator.
At present, a common propeller with a two-stage propeller has the advantages of large volume, complex structure, large noise, low thrust, environmental pollution, trace easy detection, high power consumption for improving the navigational speed and low propulsion efficiency of the two-stage propeller.
Disclosure of Invention
The invention aims to provide a booster-type propeller with high hydrodynamic efficiency. The propeller forms a discontinuous streamline structure which continuously contracts from front to back through a plurality of cambered surfaces, so that the pressure in the guide tube is increased, the rotating speed range of normal use of the propeller is improved, and therefore higher propelling power density is obtained. Meanwhile, the invention can change the inner walls of the first propeller and the second propeller without changing the power of the motor, thereby affecting the flow field in the guide pipe, and increasing the hydrodynamic performance, thereby solving the problems of large volume, large noise, insufficient concealment of the propulsion device, small thrust, low propulsion efficiency and the like of the traditional propulsion machine.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the booster-type propeller with high hydrodynamic benefits comprises a guide pipe, a driving system, a first propeller, a second propeller and a rotating shaft, wherein the driving system is arranged on the inner wall of the guide pipe and is used for driving the first propeller and the second propeller, the first propeller and the second propeller are both rotatably arranged on the inner wall of the guide pipe, the length direction of the rotating shaft is the same as the length direction of the guide pipe, the first propeller is fixedly sleeved at the front end of the rotating shaft, and the second propeller is fixedly sleeved at the rear end of the rotating shaft;
the inner wall of first screw is equipped with first cambered surface, the inner wall of second screw is equipped with the second cambered surface, the inner wall diameter of first screw is greater than the inner wall diameter of second screw, first cambered surface and second cambered surface are by the continuous shrink in front and back.
Optionally, the driving system includes a first motor and a second motor, the first motor is fixedly connected with the first propeller, and the second motor is fixedly connected with the second propeller;
the first motor is arranged at the front end of the guide pipe, the second motor is arranged at the rear end of the guide pipe, and the second motor is sleeved at the rear end of the first motor.
Optionally, the inside of pipe is equipped with the connecting piece, the outside edge of connecting piece's front end is provided with first recess, and first recess is used for fixed mounting first motor, the inboard edge of connecting piece's rear end is provided with the second recess, the second recess is used for fixed mounting the second motor.
Optionally, the diameter of the rear end of the first cambered surface is larger than the diameter of the front end of the second cambered surface, and the first cambered surface and the second cambered surface form a discontinuous streamline structure which continuously contracts from front to back.
Optionally, the front end of pipe is equipped with leading kuppe, the inboard of leading kuppe is equipped with the third cambered surface, the rear end of third cambered surface with first cambered surface is connected, the third cambered surface first cambered surface with the second cambered surface forms intermittent front to back continuous shrink's streamline structure.
Optionally, the rear end of pipe is equipped with the rear-mounted kuppe, the inboard of rear-mounted kuppe is equipped with the fourth cambered surface, the front end of fourth cambered surface with the second cambered surface is connected, third cambered surface first cambered surface second cambered surface with the fourth cambered surface forms intermittent front to back continuous shrink's streamline structure.
Optionally, a fifth cambered surface is arranged on the inner wall of the conduit, the front end of the fifth cambered surface is connected with the first cambered surface, and the rear end of the fifth cambered surface is connected with the second cambered surface; the third cambered surface, the first cambered surface, the fifth cambered surface, the second cambered surface and the fourth cambered surface form an uninterrupted streamline structure which continuously contracts from front to back.
Optionally, an arc surface is arranged on the outer side of the rear dome, the arc surface is continuously enlarged from outside to inside, and the arc surface is connected with the rear end of the fourth arc surface.
Optionally, the front end of the third cambered surface is connected with the outer wall of the catheter, and the third cambered surface is in a parabolic shape protruding towards the front end.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
1. the inner wall of the first propeller is provided with a continuously contracted first cambered surface, the inner wall of the second propeller is also provided with a continuously contracted second cambered surface, and the fact that the diameter of the rear end of the first cambered surface is larger than that of the rear end of the second cambered surface can be explained, so that fluid can flow to the center of a guide pipe in an accelerating way under the guidance of the first cambered surface and the second cambered surface, the solid resistance of the fluid is reduced, the air vaporization phenomenon on propeller blades can be effectively reduced, the propulsion efficiency is improved, the noise generation is reduced, the cavitation phenomenon is reduced, the structure of the propeller is protected, and the thrust output is improved;
2. the rear end cover of first motor is equipped with the second motor for first motor and second motor install in the inside of pipe in tandem, make the compact structure of this scheme's propeller and the propeller of the same power far less than at present, can solve that traditional high-power propeller exists bulky, heavy weight is big, the structure is complicated, the energy loss subalternation problem.
Drawings
FIG. 1 is a schematic illustration of a propeller configuration in accordance with one embodiment of the present invention;
FIG. 2 is a cross-sectional view of a propeller structure in accordance with one embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first propeller and a second propeller according to one embodiment of the present invention;
FIG. 4 is a schematic view of a first propeller and a second propeller according to an embodiment of the present invention;
fig. 5 is an enlarged view at a in fig. 2;
wherein, 1, the conduit; 11. a connecting piece; 12. a first groove; 13. a second groove; 14. a front air guide sleeve; 15. a third cambered surface; 16. a rear air guide sleeve; 17. a fourth cambered surface; 18. a fifth cambered surface; 19. an arc surface; 2. a drive system; 21. a first motor; 22. a second motor; 3. a first propeller; 31. a first cambered surface; 4. a second propeller; 41. a second cambered surface; 5. a rotating shaft.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A high hydrodynamic booster propeller according to an embodiment of the present invention will be described with reference to fig. 1 to 5.
The booster-type propeller with high hydrodynamic benefits comprises a guide pipe 1, a driving system 2, a first propeller 3, a second propeller 4 and a rotating shaft 5, wherein the driving system 2 is arranged on the inner wall of the guide pipe 1, the driving system 2 is used for driving the first propeller 3 and the second propeller 4, the first propeller 3 and the second propeller 4 are rotatably arranged on the inner wall of the guide pipe 1, the length direction of the rotating shaft 5 is the same as the length direction of the guide pipe 1, the first propeller 3 is fixedly sleeved at the front end of the rotating shaft 5, and the second propeller 4 is fixedly sleeved at the rear end of the rotating shaft 5;
the inner wall of the first propeller 3 is provided with a first cambered surface 31, the inner wall of the second propeller 4 is provided with a second cambered surface 41, the diameter of the inner wall of the first propeller 3 is larger than that of the inner wall of the second propeller 4, and the first cambered surface 31 and the second cambered surface 41 are continuously contracted from front to back.
According to the booster-type propeller with high hydrodynamic efficiency, the first propeller 3 and the second propeller 4 are coaxially sleeved on the rotating shaft 5, the driving system 2 drives the first propeller 3 and the second propeller 4, so that the first propeller 3 and the second propeller 4 jointly act to generate backward or forward axial thrust, and the propeller has forward and backward thrust.
The diameter of the inner wall of the first propeller 3 is larger than that of the inner wall of the second propeller 4, and the size of the propeller is reduced while the same driving force is ensured. In addition, the inner wall of the first propeller 3 is provided with the first cambered surface 31 which is continuously contracted, the inner wall of the second propeller 4 is also provided with the second cambered surface 41 which is continuously contracted, and the fact that the diameter of the rear end of the first cambered surface 31 is larger than that of the rear end of the second cambered surface 41 can be explained, so that fluid can flow to the center of a guide pipe in an accelerating way under the guidance of the first cambered surface 31 and the second cambered surface 41, the solid resistance of the fluid is reduced, the air vaporization phenomenon on propeller blades can be effectively reduced, the propulsion efficiency is improved, the noise generation is reduced, the cavitation phenomenon is reduced, the structure of the propeller is protected, and the thrust output is improved. Compared with the propeller of the traditional double-stage propeller, the scheme can change the inner walls of the first propeller 3 and the second propeller 4 under the condition of not changing the power of the motor, can increase the hydrodynamic performance, and solves the problems of large volume and low propulsion efficiency of the traditional pushing machine.
The first cambered surface 31 and the second cambered surface 41 are continuously contracted from front to back, so that the overall pressure of the first propeller 3 and the second propeller 4 is increased, the rotating speed range of the first propeller 3 and the second propeller 4 which are normally used is increased, and therefore higher propelling power density is obtained. Moreover, the invention is purely electric drive, clean in energy, not easy to leave marks in the sea, and can reduce the probability of being detected by reconnaissance.
The driving system 2 comprises a first motor 21 and a second motor 22, the first motor 21 is fixedly connected with the first propeller 3, and the second motor 22 is fixedly connected with the second propeller 4;
the first motor 21 is mounted at the front end of the guide pipe 1, the second motor 22 is mounted at the rear end of the guide pipe 1, and the second motor 22 is sleeved at the rear end of the first motor 21.
The rear end cover of first motor 21 is equipped with second motor 22 for first motor 21 and second motor 22 install in the inside of pipe 1 in tandem, make the compact structure of the propeller of this scheme and the propeller of the same power far less than current, can solve that traditional high-power propeller exists bulky, heavy, the structure is complicated, the problem such as energy is big.
At this time, the first motor 21 and the second motor 22 are started, the first motor 21 drives the first propeller 3 to rotate, and the second motor 22 drives the second propeller 4 to rotate. The first propeller 3 and the second propeller 4 are coaxially sleeved on the rotating shaft 5, so that the first propeller 3 and the second propeller 4 jointly act to generate backward or forward axial thrust, and the application range of the propeller is enlarged.
The inside of pipe 1 is equipped with connecting piece 11, the outside edge of connecting piece 11 front end is provided with first recess 12, and first recess 12 is used for fixed mounting first motor 21, the inboard edge of connecting piece 11 rear end is provided with second recess 13, second recess 13 is used for fixed mounting second motor 22.
The front end of the connecting piece 11 is provided with a first groove 12, and the first groove 12 is opposite to the first motor 21, so that the first motor 21 can be fixedly arranged on the outer side of the connecting piece 11; the rear end of the connecting piece 11 is provided with a second groove 13, and the second groove 13 is opposite to the second motor 22, so that the second motor 22 can fix the inner side of the connecting piece 11. At this time, the front end of the connecting member 11 is connected to the first motor 21, and the rear end of the connecting member 11 is connected to the second motor 22, thereby realizing a structure in which the second motor 22 is sleeved on the rear end of the first motor 21.
The diameter of the rear end of the first cambered surface 31 is larger than that of the front end of the second cambered surface 41, and the first cambered surface 31 and the second cambered surface 41 form a discontinuous streamline structure which continuously contracts from front to back.
The diameter of the first cambered surface 31 and the diameter of the second cambered surface 41 are limited, so that the diameter of the front end of the second cambered surface 41 is smaller than the diameter of the rear end of the first cambered surface 31, the first cambered surface 31 and the second cambered surface 41 form a broken streamline structure which continuously contracts from front to back, the integral streamline of the inner wall of the guide pipe 1 is improved, the integral resistance of the propeller is reduced, the pressure in the guide pipe is increased, and the upper limit of thrust generated by the contra-rotating propeller under the same power is improved.
The front end of the guide pipe 1 is provided with a front guide cover 14, the inner side of the front guide cover 14 is provided with a third cambered surface 15, the rear end of the third cambered surface 15 is connected with the first cambered surface 31, and the third cambered surface 15, the first cambered surface 31 and the second cambered surface 41 form a discontinuous streamline structure which continuously contracts from front to back.
In order to better reduce the resistance of the propeller and improve the flow field distribution, a front guide cover 14 is arranged at the front end of the guide pipe 1, and a third cambered surface 15 is arranged on the inner side of the front guide cover 14. The third cambered surface 15 continuously contracts from front to back, and the rear end of the third cambered surface 15 is connected with the front end of the first cambered surface 31, so that the inlet of the front-arranged air guide sleeve 14 is large.
Wherein, the third cambered surface 15, the first cambered surface 31 and the second cambered surface 41 are all continuously contracted inwards, so that the third cambered surface 15, the first cambered surface 31 and the second cambered surface 41 can form a discontinuous streamline structure which is continuously contracted from front to back, the integral streamline of the inner wall of the conduit 1 is further improved, the resistance of the propeller is reduced, and the thrust of the propeller is improved.
The rear end of the guide pipe 1 is provided with a rear guide cover 16, the inner side of the rear guide cover 16 is provided with a fourth cambered surface 17, the front end of the fourth cambered surface 17 is connected with the second cambered surface 41, and the third cambered surface 15, the first cambered surface 31, the second cambered surface 41 and the fourth cambered surface 17 form a discontinuous streamline structure which continuously contracts from front to back.
It should be noted that the rear end of the duct 1 is also provided with a rear pod 16, and the fourth cambered surface 17 of the inner wall of the rear pod 16 is connected with the second cambered surface 41, so as to ensure that the outlet of the rear pod 16 is smaller than the inlet of the front pod 14. The front guide cover 14 with a large inlet and the rear guide cover 16 with a small outlet work together to play a role in pressurizing the inner wall of the guide pipe 1, so that the propulsion efficiency of the propeller is effectively improved, and the critical values of cavitation and cavitation are improved.
In addition, the fourth cambered surface 17 is connected with the second cambered surface 41, and the first cambered surface 31 and the third cambered surface 15 are connected, so that two sections of streamline structures which continuously shrink from front to back are formed on the inner wall of the guide pipe 1, and fluid can flow towards the center of the propeller under the guidance of the streamline structures.
At this time, the streamline structure, the front guide cover 14 with a large inlet and the rear guide cover 16 with a small outlet are matched with each other, so that the pressurizing effect in the propeller can be further improved, the resistance of the propeller is obviously reduced, and the propelling efficiency of the propeller is further improved.
The inner wall of the conduit 1 is provided with a fifth cambered surface 18, the front end of the fifth cambered surface 18 is connected with the first cambered surface 31, and the rear end of the fifth cambered surface 18 is connected with the second cambered surface 41; the third cambered surface 15, the first cambered surface 31, the fifth cambered surface 18, the second cambered surface 41 and the fourth cambered surface 17 form an uninterrupted streamline structure which continuously contracts from front to back.
The front section of the fifth cambered surface 18 is connected with the rear end of the first cambered surface 31, and the rear end of the fifth cambered surface 18 is connected with the front end of the second cambered surface 41, so that the third cambered surface 15, the first cambered surface 31, the fifth cambered surface 18, the second cambered surface 41 and the fourth cambered surface 17 can form a complete and uninterrupted streamline structure which continuously contracts from front to back, a streamline inner wall is formed on the inner wall of the guide pipe 1, the resistance of fluid to solid is reduced, the fluid is pressurized, and the propulsion efficiency of the propeller is further improved.
The outer side of the rear dome 16 is provided with an arc surface 19, the arc surface 19 is continuously enlarged from outside to inside, and the arc surface 19 is connected with the rear end of the fourth arc surface 17.
The outer side of the rear air guide sleeve 16 is also provided with an arc surface 19, wherein the arc surface 19 is connected with the fourth arc surface 17, and the arc surface 19 is enlarged from outside to inside to the rear end, so that the appearance of the propeller is also provided with a streamline structure, the resistance of the shell of the propeller can be obviously reduced, and the corresponding total resistance is also greatly reduced. Therefore, the arc surface 19 is arranged on the rear-mounted air guide sleeve 16, so that the sailing performance and the propelling efficiency of the propeller can be remarkably improved.
The front end of the third cambered surface 15 is connected with the outer wall of the catheter 1, and the third cambered surface 15 is in a parabolic shape protruding towards the front end.
The front end of the third cambered surface 15 is connected with the outer wall of the guide pipe 1, so that the smoothness of the shell of the propeller can be improved, and the resistance of the shell of the propeller can be reduced. In addition, the third cambered surface 15 is in a parabolic shape protruding forwards, when the fluid flows through the third cambered surface 15, one part of the fluid can flow into the propeller under the guidance of the third cambered surface 15, and the other part of the fluid can flow to the outer side of the propeller, so that the shell resistance of the propeller is further reduced.
Other constructions, etc., and operation of a high hydrodynamic booster propeller in accordance with embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The booster-type propeller with high hydrodynamic benefits is characterized by comprising a guide pipe, a driving system, a first propeller, a second propeller and a rotating shaft, wherein the driving system is arranged on the inner wall of the guide pipe and is used for driving the first propeller and the second propeller, the first propeller and the second propeller are both rotatably arranged on the inner wall of the guide pipe, the length direction of the rotating shaft is the same as the length direction of the guide pipe, the first propeller is fixedly sleeved at the front end of the rotating shaft, and the second propeller is fixedly sleeved at the rear end of the rotating shaft;
the inner wall of first screw is equipped with first cambered surface, the inner wall of second screw is equipped with the second cambered surface, the inner wall diameter of first screw is greater than the inner wall diameter of second screw, first cambered surface and second cambered surface are by the continuous shrink in front and back.
2. The high hydrodynamic booster propeller of claim 1 wherein the drive system includes a first motor and a second motor, the first motor being fixedly connected to the first propeller and the second motor being fixedly connected to the second propeller;
the first motor is arranged at the front end of the guide pipe, the second motor is arranged at the rear end of the guide pipe, and the second motor is sleeved at the rear end of the first motor.
3. The high hydrodynamic booster propeller of claim 2, wherein the conduit is internally provided with a connector, the outer edge of the front end of the connector is provided with a first groove for fixedly mounting a first motor, the inner edge of the rear end of the connector is provided with a second groove for fixedly mounting the second motor.
4. The high hydrodynamic booster propeller of claim 1 wherein the rear end of the first arcuate surface has a diameter greater than the front end of the second arcuate surface, the first arcuate surface and the second arcuate surface forming a discontinuous front-to-back continuous converging streamline structure.
5. The booster-type propeller with high hydrodynamic benefits according to claim, wherein a front end of the guide pipe is provided with a front guide cover, a third cambered surface is arranged on the inner side of the front guide cover, the rear end of the third cambered surface is connected with the first cambered surface, and the third cambered surface, the first cambered surface and the second cambered surface form a discontinuous streamline structure which continuously contracts from front to back.
6. The booster-type propeller with high hydrodynamic benefits according to claim 5, wherein a rear-mounted air guide sleeve is arranged at the rear end of the guide pipe, a fourth cambered surface is arranged on the inner side of the rear-mounted air guide sleeve, the front end of the fourth cambered surface is connected with the second cambered surface, and the third cambered surface, the first cambered surface, the second cambered surface and the fourth cambered surface form a discontinuous streamline structure which continuously contracts from front to back.
7. The booster-type propeller with high hydrodynamic efficiency according to claim 6, wherein a fifth cambered surface is arranged on the inner wall of the guide pipe, the front end of the fifth cambered surface is connected with the first cambered surface, and the rear end of the fifth cambered surface is connected with the second cambered surface; the third cambered surface, the first cambered surface, the fifth cambered surface, the second cambered surface and the fourth cambered surface form an uninterrupted streamline structure which continuously contracts from front to back.
8. The booster-type propeller with high hydrodynamic efficiency according to claim 6, wherein an arc surface is arranged on the outer side of the rear-mounted air guide sleeve, the arc surface is continuously enlarged from outside to inside, and the arc surface is connected with the rear end of the fourth arc surface.
9. The high hydrodynamic booster propeller of claim 5 wherein the forward end of the third arcuate surface is connected to the outer wall of the duct, the third arcuate surface being parabolic with a convex forward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310690774.0A CN116495155A (en) | 2023-06-12 | 2023-06-12 | Booster-type propeller with high hydrodynamic benefits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310690774.0A CN116495155A (en) | 2023-06-12 | 2023-06-12 | Booster-type propeller with high hydrodynamic benefits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116495155A true CN116495155A (en) | 2023-07-28 |
Family
ID=87316747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310690774.0A Pending CN116495155A (en) | 2023-06-12 | 2023-06-12 | Booster-type propeller with high hydrodynamic benefits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116495155A (en) |
-
2023
- 2023-06-12 CN CN202310690774.0A patent/CN116495155A/en active Pending
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