CN110539868A - Electric water-jet propeller - Google Patents
Electric water-jet propeller Download PDFInfo
- Publication number
- CN110539868A CN110539868A CN201910936444.9A CN201910936444A CN110539868A CN 110539868 A CN110539868 A CN 110539868A CN 201910936444 A CN201910936444 A CN 201910936444A CN 110539868 A CN110539868 A CN 110539868A
- Authority
- CN
- China
- Prior art keywords
- propeller
- motor
- shell
- electric water
- bearing
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses an electric water-jet propeller, which belongs to the technical field of propellers and comprises a motor and a propelling mechanism connected with the motor, wherein the motor is provided with a motor shell and a rotating shaft penetrating through the motor shell; the propelling mechanism is provided with a propeller shell connected with the motor shell, a propeller shaft penetrating through the propeller shell, a propeller nozzle fixedly connected with the propeller shell and a propeller positioned in the propeller shell and sleeved on the propeller shaft; one end of the propeller shaft sleeve, which is provided with the propeller, is positioned in the propeller nozzle, and the other end of the propeller shaft sleeve is connected with the rotating shaft through the internal spline coupler. The invention reduces redundant connecting cables and optimizes power transmission by integrally arranging the motor and the propeller and arranging the controller in the motor, has compact structure, is completely installed underwater without independently designing a water cooling loop, has good heat dissipation effect and achieves the aim of improving the working efficiency.
Description
Technical Field
The invention relates to a propeller, in particular to an electric water-jet propeller, and belongs to the technical field of propellers.
Background
The water jet propeller is a propeller in which a jet part of a propulsion mechanism is immersed in water and a reaction force generated by the jet water flow is used to drive a ship to move forward. The ship is composed of a water pump, a pipeline, a suction port, a nozzle and the like, and can change the jet direction of water flow through the nozzle to realize the operation of the ship, and the basic principle of water jet propulsion is as follows: the ship body can be subjected to the reaction force of the water flow according to the action force and the reaction force, and the force is the thrust.
traditional water jet propulsion ware adopts fuel engine to provide power more, therefore power unit must be outside water, has restricted the installation condition, very big inconvenience, and the volume is great moreover, motor and propeller separation, the circuit is complicated, causes the installation to be restricted, consequently needs the mechanism of a motor and propeller integration, can install under water completely, and the heat dissipation is very fast, reduces the circuit simultaneously, optimizes power transmission.
Disclosure of Invention
The invention mainly aims to provide an electric water-jet propeller, which is compact in structure, completely installed underwater, does not need to design a water-cooling loop independently, and has a good heat dissipation effect by integrally arranging a motor and a propeller and arranging a controller in the motor, so that the aim of improving the working efficiency is fulfilled.
The purpose of the invention can be achieved by adopting the following technical scheme:
an electric water-jet propeller comprises a motor and a propelling mechanism connected with the motor, wherein the motor is provided with a motor shell and a rotating shaft penetrating through the motor shell; the propelling mechanism is provided with a propeller shell connected with the motor shell, a propeller shaft penetrating through the propeller shell, a propeller nozzle fixedly connected with the propeller shell and a propeller positioned in the propeller shell and sleeved on the propeller shaft; one end of the propeller shaft sleeve, which is provided with the propeller, is positioned in the propeller nozzle, and the other end of the propeller shaft sleeve is connected with the rotating shaft through an internal spline coupler.
Preferably, the motor is an underwater sealing integrated motor, the motor shell is an aluminum motor shell, and a motor tail cover and a motor front end cover are respectively installed at two ends of the motor.
Preferably, the pivot with the one end of propeller hub connection runs through the motor front end housing, the motor front end housing is equipped with the motor seal chamber, the pivot runs through the motor seal chamber, be equipped with the oil blanket behind the motor frame and the preceding oil blanket of motor frame in the motor seal chamber respectively, the pivot runs through in proper order the oil blanket behind the motor frame with the oil blanket before the motor frame, the oil blanket behind the motor frame with form between the oil blanket before the motor frame and be used for waterproof motor seal group.
Preferably, a tapered roller bearing is sleeved at one end of the rotating shaft close to the motor tail cover, and the tapered roller bearing is fixed on the motor tail cover; the motor front cover bearing is sleeved at one end, close to the motor front end cover, of the rotating shaft, and the motor front cover bearing is fixed on the motor front end cover.
Preferably, a controller circuit board and a stator sleeved on the rotating shaft are further arranged in the motor.
Preferably, the pivot is the magnet steel power pivot that is used for producing radial rotation and output power, the rotor is for being used for providing the change magnetic field and drive the rotatory wire winding magnet steel stator of pivot.
Preferably, the front end of screw is equipped with the cover and establishes being used for of propeller shaft is fixed propeller oil blanket bush and the cover of screw establish propeller skeleton oil blanket on propeller oil blanket bush, propeller oil blanket bush with propeller oil blanket bush forms the sealed group of screw.
Preferably, be equipped with oar head bearing cabin in the propeller shower nozzle, fix oar head sealed bearing housing in the oar head bearing cabin and fix in the oar head sealed bearing housing and the cover is established the epaxial oar head bearing of propeller, the one end of propeller shaft is located in the oar head bearing cabin, and this end still is equipped with and is used for the fastening the fixed screw of loosening of oar head that the propeller prevented it to drop.
preferably, the propeller framework oil seal and the propeller head bearing are fixed in the propeller head sealing bearing sleeve in parallel, and the propeller head sealing bearing sleeve is used for fixing the propeller framework oil seal and the propeller head bearing and connecting the propeller shaft and the propeller nozzle.
Preferably, the upper surface of the propeller shell is provided with a water flow arc line, and the lower surface of the propeller shell is provided with a water inlet communicated with the propeller.
The invention has the beneficial technical effects that:
1. Compared with the traditional fuel power propeller, the electric water-jet propeller provided by the invention has the advantages that the motor is an underwater sealing integrated motor, the shell is an aluminum shell, the motor and the propeller are assembled together, the electric water-jet propeller can be directly installed outside a small ship, the waterproof problem of an installation part is not considered, and the electric water-jet propeller is easy to install.
2. The electric water-jet propeller integrates the alternating current motor, the controller for driving the alternating current motor to work and the motor, and transmits power to the electric water-jet propeller connected with the alternating current motor through the coupler, so that redundant connecting cables and power transmission are reduced, and the structure is compact.
3. the electric water-jet propeller provided by the invention is wholly immersed under water during working, a water-cooling loop does not need to be independently designed, and the motor and the controller have good heat dissipation effects.
4. The electric water-jet propeller provided by the invention has the advantages of good heat dissipation effect and ultrashort transmission distance, and higher working efficiency.
5. the electric water-jet propeller provided by the invention provides reverse thrust under water, and the thrust can drive small ships, motorboats, surfboards and other waterborne traffic and sports equipment to operate.
Drawings
Fig. 1 is an overall structural view of a preferred embodiment of an electric water jet according to the present invention;
FIG. 2 is a front sectional view of a preferred embodiment of the electric water jet according to the present invention;
FIG. 3 is an exploded view of the electric water jet according to a preferred embodiment of the present invention;
in the figure: 1-motor tail cover, 2-tapered roller bearing, 3-controller circuit board, 4-stator, 5-motor shell, 6-rotating shaft, 7-motor front cover bearing, 8-motor framework rear oil seal, 9-motor framework front oil seal, 10-motor front end cover, 11-internal spline coupler, 12-propeller shaft, 13-propeller shell, 14-propeller, 15-propeller oil seal bushing, 16-propeller framework oil seal, 17-propeller head bearing, 18-propeller head seal bearing sleeve, 19-propeller nozzle, 20-propeller head fixing and loosening screw, 21-motor, 22-propulsion mechanism, 23-motor seal chamber and 24-propeller head bearing cabin.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-3, the electric water jet provided by this embodiment includes a motor 21 and a propulsion mechanism 22 connected to the motor 21, the motor 21 is an underwater sealing integrated motor, the motor housing 5 is an aluminum motor housing, two ends of the motor 21 are respectively provided with a motor tail cover 1 for fixing a motor rotor and waterproof sealing and a motor front cover 10 for fixing the motor rotor, waterproof sealing and connecting a pump body assembly of the electric water jet, the motor 21 and the propeller 22 are assembled together, can be directly arranged outside a small ship, has no waterproof problem of the installation position in consideration compared with the traditional fuel power propeller, is easy to install, and has the advantages that the electric water jet propeller provided by the invention, provides reverse thrust under water, and the thrust can drive small ships, motorboats, surfboards and other water traffic and sports equipment to operate.
Further, in the present embodiment, as shown in fig. 1 to fig. 3, the motor 21 is provided with a motor housing 5 and a magnetic steel power rotating shaft 6 penetrating through the motor housing 5 for generating radial rotation and outputting power; the propulsion mechanism 22 is provided with a propeller shell 13 (namely a pump body of the electric water jet propeller) connected with the motor shell 5, a propeller shaft 12 penetrating through the propeller shell 13 and used for transmitting impeller rotation power and axial thrust, a propeller nozzle 19 fixedly connected with the propeller shell 13 and used for water flow reverse pressurization, and a propeller 14 which is positioned in the propeller shell 13 and sleeved on the propeller shaft 12 and used for converting radial rotation into axial thrust; one end of the propeller shaft 12, on which the propeller 14 is sleeved, is positioned in the propeller nozzle 19, and the other end of the propeller shaft is connected with the rotating shaft 6 through the internal spline coupler 11 for transmitting radial rotation and axial thrust.
Further, in this embodiment, as shown in fig. 1 to fig. 3, one end of the rotating shaft 6 connected to the propeller shaft 12 penetrates through the motor front end cover 10, the motor front end cover 10 is provided with a motor sealing chamber 23, the rotating shaft 6 penetrates through the motor sealing chamber 23, a motor framework rear oil seal 8 and a motor framework front oil seal 9 which are used for forming a sealed cabin on the front end cover are respectively arranged in the motor sealing chamber 23, the rotating shaft 6 sequentially penetrates through the motor framework rear oil seal 8 and the motor framework front oil seal 9, and a motor sealing group for preventing water is formed between the motor framework rear oil seal 8 and the motor framework front oil seal 9.
Further, in the present embodiment, as shown in fig. 1 to fig. 3, one end of the rotating shaft 6 close to the motor tail cover 1 is sleeved with a tapered roller bearing 2 for rotor rotation and transmission of axial thrust, and the tapered roller bearing 2 is fixed on the motor tail cover 1; one end of the rotating shaft 6 close to the motor front end cover 10 is sleeved with a motor front cover bearing 7 used for rotating the rotor, and the motor front cover bearing 7 is fixed on the motor front end cover 10.
Further, in this embodiment, as shown in fig. 1-3, a controller circuit board 3 for driving and controlling the rotation of the ac motor and a wound magnetic steel stator 4 sleeved on the rotating shaft 6 and used for providing a changing magnetic field to drive the rotor to rotate are further disposed in the motor 21, the ac motor, the controller for driving the ac motor to operate and the motor are integrated into a whole, power is transmitted to the electric water jet propeller connected to the ac motor through a coupler, redundant connecting cables and power transmission are reduced, the structure is compact, and the whole is immersed under water during operation, a water cooling loop does not need to be separately designed, the motor and the controller both have good heat dissipation effects, good heat dissipation effects and an ultra-short transmission distance are benefited, and the working efficiency is higher.
Further, in the present embodiment, as shown in fig. 1 to fig. 3, a propeller oil seal bushing 15 for fixing the propeller 14 and a propeller framework oil seal 16 for sealing the propeller head bearing compartment are disposed on the propeller oil seal bushing 15, which are disposed on the propeller shaft 12, at the front end of the propeller 14, and the propeller oil seal bushing 15 form a propeller seal set.
Further, in the present embodiment, as shown in fig. 1-3, a head bearing housing 24 for fixing a bearing and a skeleton oil seal and connecting the nozzle, a head sealing bearing housing 18 fixed in the head bearing housing 24, and a head bearing 17 fixed in the head sealing bearing housing 18 and sleeved on the propeller shaft 12 for keeping the propeller rotating are provided in the propeller nozzle 19, one end of the propeller shaft 12 is located in the head bearing housing 24, and the end is further provided with a head fixing and loosening screw 20 for fastening the propeller 14 to prevent the propeller from falling off.
Further, in the present embodiment, as shown in fig. 1 to 3, the propeller framework oil seal 16 is fixed in the propeller head sealing bearing sleeve 18 in parallel with the propeller head bearing 17, and the propeller head sealing bearing sleeve 18 is used for fixing the propeller framework oil seal 16 and the propeller head bearing 17 and connecting the propeller shaft 12 and the propeller nozzle 19.
Further, in this embodiment, as shown in fig. 1-3, the propeller housing 13 has an upper surface provided with a water flow arc line and a lower surface provided with a water inlet communicated with the propeller 14, and the motor is started to drive the propeller 14 to rotate, as shown by arrows in fig. 1 and 2, water enters from the water inlet and is ejected from the propeller nozzle through the propeller blades.
As shown in fig. 1 to 3, the electric water jet provided in the present embodiment operates as follows:
The propeller is mainly composed of two parts, namely an underwater sealing integrated motor and an electric water-jet propeller. The sealed integrated motor integrates the existing alternating current motor and a controller for driving the alternating current motor to work into a whole through an aluminum shell, and transmits power to the electric water-jet propeller connected with the alternating current motor through a coupler; the propeller provides reverse thrust under water, and the thrust can drive small ships, motorboats, surfboards and other water traffic and sports equipment to operate.
In summary, compared with the conventional fuel powered propeller, the electric water jet propeller provided by the embodiment has the advantages that the underwater sealing integrated motor and the propeller are assembled together, the alternating current motor and the controller for driving the alternating current motor to work are integrated into a whole, and then the power is transmitted to the electric water jet propeller connected with the alternating current motor through the coupler, so that redundant connecting cables are reduced, power transmission is optimized, the structure is compact, the electric water jet propeller can be wholly immersed under water during working, a water cooling loop is not required to be independently designed, the motor and the controller both have good heat dissipation effects, and the electric water jet propeller can benefit from good heat dissipation effects and ultra-short transmission distance, has higher working efficiency, and can drive small ships, motorboats, surfboards and other waterborne traffic and motion equipment to.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (10)
1. An electric water-jet propeller is characterized in that: the device comprises a motor (21) and a propelling mechanism (22) connected with the motor (21), wherein the motor (21) is provided with a motor shell (5) and a rotating shaft (6) penetrating through the motor shell (5); the propulsion mechanism (22) is provided with a propeller shell (13) connected with the motor shell (5), a propeller shaft (12) penetrating through the propeller shell (13), a propeller nozzle (19) fixedly connected with the propeller shell (13) and a propeller (14) positioned in the propeller shell (13) and sleeved on the propeller shaft (12); the propeller shaft (12) is sleeved with one end of the propeller (14) is positioned in the propeller nozzle (19), and the other end of the propeller shaft is connected with the rotating shaft (6) through an internal spline coupler (11).
2. An electric water jet as claimed in claim 1, wherein: the underwater sealing integrated motor is characterized in that the motor (21) is an underwater sealing integrated motor, the motor shell (5) is an aluminum motor shell, and a motor tail cover (1) and a motor front end cover (10) are respectively installed at two ends of the motor (21).
3. An electric water jet as claimed in claim 2, wherein: pivot (6) with the one end that propeller shaft (12) is connected runs through motor front end housing (10), motor front end housing (10) are equipped with motor seal chamber (23), pivot (6) run through motor seal chamber (23), be equipped with respectively in motor seal chamber (23) oil blanket (9) before oil blanket (8) and the motor skeleton behind the motor skeleton, pivot (6) run through in proper order oil blanket (8) behind the motor skeleton with oil blanket (9) before the motor skeleton, oil blanket (8) behind the motor skeleton with form between the oil blanket (9) before the motor skeleton and be used for waterproof motor seal group.
4. An electric water jet as claimed in claim 2, wherein: one end, close to the motor tail cover (1), of the rotating shaft (6) is sleeved with a tapered roller bearing (2), and the tapered roller bearing (2) is fixed on the motor tail cover (1); the motor front cover bearing structure is characterized in that a motor front cover bearing (7) is sleeved at one end, close to the motor front cover (10), of the rotating shaft (6), and the motor front cover bearing (7) is fixed on the motor front cover (10).
5. An electric water jet as claimed in claim 1, wherein: the motor (21) is also internally provided with a controller circuit board (3) and a stator (4) sleeved on the rotating shaft (6).
6. An electric water jet as claimed in claim 5, wherein: the rotating shaft (6) is a magnetic steel power rotating shaft used for generating radial rotation and outputting power, and the rotor (4) is a winding magnetic steel stator used for providing a variable magnetic field and driving the rotating shaft (6).
7. An electric water jet as claimed in claim 1, wherein: the front end of screw (14) is equipped with the cover and establishes being used for of propeller axle (12) is fixed screw oil blanket bush (15) and the cover of screw (14) are established propeller skeleton oil blanket (16) on screw oil blanket bush (15), screw oil blanket bush (15) with screw oil blanket bush (15) form screw sealed group.
8. An electric water jet propeller as defined in claim 7, wherein: be equipped with oar head bearing cabin (24), fix in propeller shower nozzle (19) oar head seal bearing housing (18) in oar head bearing cabin (24) and fix in oar head seal bearing housing (18) and the cover establish oar head bearing (17) on propeller shaft (12), the one end of propeller shaft (12) is located in oar head bearing cabin (24), and this end still is equipped with and is used for the fastening oar head that propeller (14) prevented its and drops fixes loosening screw (20).
9. An electric water jet propeller as defined in claim 8, wherein: the propeller framework oil seal (16) and the propeller head bearing (17) are fixed in the propeller head sealing bearing sleeve (18) in parallel, and the propeller head sealing bearing sleeve (18) is used for fixing the propeller framework oil seal (16) and the propeller head bearing (17) and connecting the propeller shaft (12) and the propeller nozzle (19).
10. An electric water jet as claimed in claim 1, wherein: the upper surface of the propeller shell (13) is provided with a water flow arc line, and the lower surface of the propeller shell is provided with a water inlet communicated with the propeller (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936444.9A CN110539868A (en) | 2019-09-29 | 2019-09-29 | Electric water-jet propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936444.9A CN110539868A (en) | 2019-09-29 | 2019-09-29 | Electric water-jet propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110539868A true CN110539868A (en) | 2019-12-06 |
Family
ID=68715190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910936444.9A Pending CN110539868A (en) | 2019-09-29 | 2019-09-29 | Electric water-jet propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110539868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100239A (en) * | 2021-12-22 | 2022-03-01 | 北京蔚蓝集智科技有限公司 | Filter screen structure of surfboard propeller water inlet channel and application |
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| CN101125581A (en) * | 2007-09-29 | 2008-02-20 | 哈尔滨工程大学 | Underwater propeller thruster with self-diagnosing function |
| CN101417702A (en) * | 2008-06-25 | 2009-04-29 | 哈尔滨工程大学 | Underwater motor and thruster integrated apparatus |
| US20110201238A1 (en) * | 2010-02-13 | 2011-08-18 | Wavedrive Systems, Inc. | Electric Powered Surfboard Propulsion and Control Systems |
| CN103112573A (en) * | 2013-03-07 | 2013-05-22 | 武汉劳雷绿湾船舶科技有限公司 | Underwater power plant propeller |
| CN203819490U (en) * | 2014-04-02 | 2014-09-10 | 浙江海洋学院 | Underwater propeller |
| CN204713413U (en) * | 2015-06-17 | 2015-10-21 | 青岛远创机器人自动化有限公司 | Underwater propeller |
| CN208085964U (en) * | 2018-01-30 | 2018-11-13 | 托克（嘉兴）科技有限公司 | Water jet one water cooling propeller and the electronic surfboard with the propeller |
| CN109895964A (en) * | 2017-12-07 | 2019-06-18 | 田瑜 | Propulsion die, cooling system and surfing equipment |
| CN110203367A (en) * | 2019-07-19 | 2019-09-06 | 赛奎鹰智能装备(威海)有限责任公司 | Underwater propeller |
| CN210912843U (en) * | 2019-09-29 | 2020-07-03 | 江苏杭源机电设备有限公司 | Electric water-jet propeller |
-
2019
- 2019-09-29 CN CN201910936444.9A patent/CN110539868A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125581A (en) * | 2007-09-29 | 2008-02-20 | 哈尔滨工程大学 | Underwater propeller thruster with self-diagnosing function |
| CN101417702A (en) * | 2008-06-25 | 2009-04-29 | 哈尔滨工程大学 | Underwater motor and thruster integrated apparatus |
| US20110201238A1 (en) * | 2010-02-13 | 2011-08-18 | Wavedrive Systems, Inc. | Electric Powered Surfboard Propulsion and Control Systems |
| CN103112573A (en) * | 2013-03-07 | 2013-05-22 | 武汉劳雷绿湾船舶科技有限公司 | Underwater power plant propeller |
| CN203819490U (en) * | 2014-04-02 | 2014-09-10 | 浙江海洋学院 | Underwater propeller |
| CN204713413U (en) * | 2015-06-17 | 2015-10-21 | 青岛远创机器人自动化有限公司 | Underwater propeller |
| CN109895964A (en) * | 2017-12-07 | 2019-06-18 | 田瑜 | Propulsion die, cooling system and surfing equipment |
| CN208085964U (en) * | 2018-01-30 | 2018-11-13 | 托克（嘉兴）科技有限公司 | Water jet one water cooling propeller and the electronic surfboard with the propeller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100239A (en) * | 2021-12-22 | 2022-03-01 | 北京蔚蓝集智科技有限公司 | Filter screen structure of surfboard propeller water inlet channel and application |
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