CN108482628B - Novel energy-saving yacht driving device - Google Patents
Novel energy-saving yacht driving device Download PDFInfo
- Publication number
- CN108482628B CN108482628B CN201810421263.8A CN201810421263A CN108482628B CN 108482628 B CN108482628 B CN 108482628B CN 201810421263 A CN201810421263 A CN 201810421263A CN 108482628 B CN108482628 B CN 108482628B
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- oil
- driving motor
- sealing chamber
- gas sealing
- gas
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000007306 turnover Effects 0.000 claims abstract description 28
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 238000004134 energy conservation Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 80
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 14
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
- B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- General Details Of Gearings (AREA)
- Sealing Devices (AREA)
Abstract
Novel energy-conserving yacht drive device, its characterized in that: the driving device comprises a propeller fixing seat assembly (1), a driving motor (2) and a propeller (3), wherein the fixing seat assembly (1) is fixed at the rear part of a boat body (4), the driving motor (2) is fixed at the lower part of the fixing seat assembly (1) and connected with the lower end part of a longitudinal main shaft (133) of a turnover body, the propeller (3) is fixed at the shaft extension position of the main shaft of the driving motor (2), the driving motor (2) and the propeller (3) are directly arranged under water during working, the driving motor (2) is electrified to rotate to directly drive the propeller (3) to rotate, and the driving motor (2) directly drives the boat to run under water, so that the purposes of energy conservation, noise reduction and protection are achieved.
Description
Technical Field
The invention relates to a novel energy-saving yacht driving device.
Background
At present, small yachts at home and abroad are driven by an internal combustion engine as a power water surface, and then a transmission mechanism drives a propeller to rotate underwater, so that the propeller is pushed to run under the action of the back acting force of water on the propeller. The current small yacht transmission method has two modes: 1. the water surface drives a 90-degree included angle transmission mode. The main shaft of the internal combustion engine realizes the transmission with an included angle of 90 degrees through a transmission shaft with an included angle of 90 degrees through a bevel gear; 2. the yacht cavity transmission mode. The power is arranged in the passenger cavity of the yacht, has a certain level difference with the propeller, and then realizes the driving of the propeller according to a certain included angle through the transmission mechanism. The prior driving mechanism has the following problems: 1. the transmission efficiency is low, and the energy consumption is low. The transmission efficiency can only reach 85% -90%; 2. sundries on propeller blades which are spirally arranged in a passenger cavity of the yacht and are difficult to clean by driving power; 3. the internal combustion engine is adopted as main transmission, so that pollution to rivers and lakes is serious due to leakage of fuel oil and lubricating oil, ecology is influenced, and meanwhile, driving noise is high.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a novel energy-saving yacht driving device.
The technical scheme of the invention is as follows: the utility model provides a novel energy-conserving yacht drive arrangement, includes yacht propeller fixing base assembly 1, driving motor 2 and screw 3, fixing base assembly 1 fix at hull 4 rear portion, driving motor 2 fix the lower part at fixing base assembly 1, be connected with upset body vertical main shaft 133, screw 3 fix the main shaft position of driving motor 2, during operation driving motor 2 and screw 3 direct set up under water, driving motor 2 circular telegram rotates direct drive screw 3 and rotates, realizes driving motor 2 and directly drives under water and impels the yacht operation to reach energy-conservation, prevent protecting structure simple destination.
Further, the driving motor 2 is composed of a stator 21, a rotor 22, a motor housing 23, a front bearing 24, a rear bearing 25, a front end cover 26, a rear end cover 27 and an oil-gas sealing chamber 28, wherein the stator 21 is arranged inside the motor housing 23, the rotor 22 is arranged inside the stator 21, the front bearing 24 and the rear bearing 25 are respectively fixed in the bearing chambers of the front end cover 26 and the rear end cover 27, and the oil-gas sealing chamber 28 is arranged outside the front end cover, so that the driving motor 2 can effectively seal and prevent water from leaking into the driving motor 2 when working underwater.
Further, the fixing base assembly 1 is composed of a turnover mechanism 11 and a steering mechanism 13, the turnover mechanism 11 is composed of a turnover reduction gearbox 111, a turnover body main shaft 112, a bearing seat 113 and a turnover body longitudinal main shaft fixing assembly 134, the turnover reduction gearbox 111 and the bearing seat 113 are respectively connected with the turnover body main shaft 112 through the turnover body longitudinal main shaft fixing assembly 134, a hand wheel 1111 on the rotation turnover reduction gearbox drives the turnover body longitudinal main shaft fixing assembly 134 to rotate, so that the turnover body main shaft 112 is driven to rotate, and the turnover body longitudinal main shaft fixing assembly 134 and the driving motor 2 do circumferential rotation along the shaft center line of the turnover body main shaft 112. The steering mechanism 13 is composed of a steering driving handle 131, a steering transmission shaft 132 and a turning body longitudinal main shaft 133, the steering driving handle 131 is connected with the upper end part of the steering transmission shaft 132, the steering transmission shaft 132 is connected with the upper end part of the turning body longitudinal main shaft 133, the turning body longitudinal main shaft 133 is fixed on the upper end part of the turning body longitudinal main shaft 133 by a bolt 1222, the lower end part of the turning body longitudinal main shaft 133 is connected with a driving motor 2, the turning body longitudinal main shaft 133 is arranged in a turning body longitudinal main shaft fixing assembly 134, the steering driving handle 131 swings, the turning body longitudinal main shaft 133 is driven to do circular motion along the axis center by the steering transmission shaft 132, thereby the driving motor 2 fixed on the lower end part of the turning body longitudinal main shaft 133 changes the driving angle, the propeller 3 changes the thrust angle, an included angle is generated between the water thrust direction and the original running direction of the yacht, and the size of the lateral component force is determined according to the size of the included angle, and the component force is used for changing the running direction of the yacht.
Further, the oil-gas seal chamber 28 of the driving motor 2 is arranged at the outer side of the shaft extension direction of the rotor 22 of the front end cover 26 of the driving motor 2, and comprises an oil-gas seal chamber front shaft seal 281, an oil-gas seal chamber rear shaft seal 282, an oil-gas seal chamber housing 283, oil-gas seal chamber seal 284 and oil-gas seal chamber compressed gas 285, wherein the oil-gas seal chamber housing 283 is connected with the front end cover 26 of the driving motor 2, the oil-gas seal chamber front shaft seal 281 is fixed at the shaft extension direction of the front side driving motor 2 of the oil-gas seal chamber housing 283, and performs a dynamic and static sealing function on the front end of the shaft of the rotor 22 of the driving motor 2 to prevent external water from penetrating during operation, the oil-gas seal chamber rear shaft seal 282 is fixed on the outer side wall of the front end cover 26 of the driving motor 2 of the oil-gas seal chamber housing 283, and the shaft extension of the rotor 22 of the driving motor 2 performs a dynamic and static sealing function, so as to prevent the oil-gas seal chamber seal oil 284 from penetrating into the stator 21 of the driving motor 2 during operation, the oil-gas seal chamber seal oil 284 is injected into the inner cavity of the oil-gas seal chamber 28 through an oil injection port, occupies 55% -80% of the cavity space, the oil-gas seal chamber compressed gas 285 is injected into the inner cavity of the oil-gas seal chamber 28 through a compressed air injection port, occupies 20% -45% of the cavity space, and under the action of the oil-gas seal chamber compressed gas 285, the oil-gas seal chamber seal oil 284 keeps the corresponding pressure, the pressure is flexibly adjusted according to different working conditions and is larger than the water pressure of the water depth during operation of the driving motor 2 and is smaller than the water pressure when the front shaft seal 281 of the oil-gas seal chamber during operation of the driving motor 2 is added with the working water depth of the driving motor 2, the oil-gas seal chamber 28 not only effectively prevents the penetration of external water during operation of the driving motor 2, and prevents the oil-gas seal chamber seal oil 284 of the oil-gas seal chamber 28 from penetrating into the inside of the drive motor 2.
Further, a one-way valve 286 is arranged on the front end cover 26 of the driving motor 2 of the connecting part between the oil-gas sealing chamber 28 and the driving motor 2, and compressed air is directly communicated with the inner cavity of the oil-gas sealing chamber 28 from the inner cavity of the driving motor 2 through the one-way valve 286, so that the pressure gas is unidirectionally conducted to the inner cavity of the oil-gas sealing chamber 28 from the inner cavity of the driving motor 2.
Further, the fixing seat assembly 1 is provided with a compressed gas self-shrinkage air bag 14, the compressed gas self-shrinkage air bag 14 is arranged in a self-shrinkage air bag shell 15 of the compressed gas self-shrinkage air bag 14 connected with the fixing seat assembly 1, the compressed gas self-shrinkage air bag 14 is connected with a motor shell 23 of the driving motor 2 through a gas connecting pipe 16, and when leakage of the compressed gas in the driving motor 2 is reduced, the compressed gas self-shrinkage air bag 14 automatically shrinks so as to achieve a pressure balance automatic compensation function.
The invention has the advantages that: the invention realizes the direct driving of the driving motor under water, achieves the purposes of saving energy by 10% -20%, simultaneously effectively realizing the aims of protecting and reducing noise, has simple structure and convenient maintenance, adopts the structure design of the oil-gas sealing chamber at the front end of the driving motor, can effectively achieve the purpose of sealing the driving motor under water, applies compressed air in the driving motor to be transmitted into the oil-gas sealing chamber at equal pressure under the action of the one-way valve, leads the pressure in the sealing chamber to be larger than the external water pressure to the peripheral pressure of the motor so as to ensure that the motor does not leak, has the working principle that sealing lubricating oil is injected into the oil-gas sealing chamber, the oil storage capacity of the sealing lubricating oil occupies 60% -80% of the volume space of the sealing chamber, and the other 20% -40% of the space is occupied by the compressed air, and the shaft seal generates motion lubrication during working, because the viscosity of the lubricating oil generates lubrication resistance, when the lubrication resistance is higher than the external water pressure of the driving motor, the external water cannot leak from the shaft seal and the matched air gap to the inner cavity of the driving motor, and the siphon phenomenon of the water cannot be sealed, and the sealing of the driving motor cannot be achieved because the cavity of the driving motor and the oil seal cavity are communicated with the air sealing cavity through the two sealing valves, and the sealing oil cavities tend to leak towards the inner cavity of the driving chamber. The invention is also provided with the air bag communicated with the motor cavity machine on the fixing seat assembly, when the motor cavity is driven to generate compressed gas leakage due to long-term operation, the air bag shell automatically contracts to balance the internal pressure of the cavity, and when the pressure of the compressed gas is reduced to a use critical value, the compressed gas is supplemented to the air bag. The invention is also provided with an oil quantity liquid level measuring head and a compressed gas pressure measuring head in the oil gas sealing chamber, an electric control wire of the oil quantity liquid level measuring head is led out from the driving motor shell, a yacht pumping staff can timely know the oil quantity liquid level condition of sealing lubricating oil and the pressure condition of compressed gas in the oil gas sealing chamber when the underwater driving motor works on the pumping disc, and measures such as maintenance, air filling and oiling of an underwater driving system can be timely adopted when the yacht pumping staff works. The leakage early warning of the driving motor can be effectively given so as to ensure the normal operation of the underwater driving system.
Drawings
Fig. 1 is a structural view of a yacht pusher.
Fig. 2 is a structural view of a driving motor.
FIG. 3 is a diagram of a propeller mount assembly.
Detailed Description
The invention is further illustrated in conjunction with a yacht propulsion structure diagram as follows: in the structure diagram of the yacht propeller shown in fig. 1, a driving motor 2 is electrified to operate to drive a propeller 3 to rotate, axial thrust is generated under the action of the reaction force of water, so that the yacht is propelled to operate, when the yacht is turned, a driving mechanism or a driving handle drives a turning transmission shaft 132 to do circular motion perpendicular to an axle center, the axial direction of the driving motor 2 is directly driven to change the original working angle, and the thrust direction of the propeller 3 acting on water is also changed, so that the yacht is changed in running direction; the driving motor 2 is shown in a structural diagram in fig. 2, when the driving motor is in operation, under the pressure of the compressed gas 285 in the oil-gas sealing chamber, the pressure of the compressed gas 285 in the oil-gas sealing chamber is flexibly adjusted according to the water depth of the actual driving motor 2 by conducting the compressed gas 284 in the oil-gas sealing chamber and respectively acting on the front shaft seal 281 and the rear shaft seal 282 in the oil-gas sealing chamber, so that the pressure of the compressed gas 284 in the oil-gas sealing chamber and the pressure of the compressed gas 284 in the driving motor 2 are communicated through the one-way valve 286, the pressure in the inner cavity of the driving motor 2 and the pressure on the compressed gas 284 in the oil-gas sealing chamber tend to be equal, the leakage of the compressed gas 284 in the oil-gas sealing chamber into the driving motor 2 is not caused, the external sealing is prevented from penetrating into the oil-gas sealing chamber 28, the oil 284 in the oil-gas sealing chamber is prevented from leaking into the driving motor 2, and the double sealing effect is achieved; in the view of the propeller fixing base assembly shown in fig. 3, the hand wheel 1111 is rotated, the overturning reduction box 111 drives the overturning body main shaft 112 to rotate under the action of the internal worm and gear, so that the overturning body longitudinal main shaft fixing assembly 134 overturns, and the driving motor 2 and the propeller 3 are driven to overturn towards the water surface and gradually turn to the upper part in the yacht cavity, so that weeds of the propeller 3 are removed, and meanwhile, the maintenance is convenient.
Claims (5)
1. Novel energy-conserving yacht drive device, its characterized in that: the driving device comprises a propeller fixing seat assembly (1), a driving motor (2) and a propeller (3), wherein the fixing seat assembly (1) is fixed at the rear part of a boat body (4), the driving motor (2) is fixed at the lower part of the fixing seat assembly (1) and is connected with the lower end part of a longitudinal main shaft (133) of the turnover body, the propeller (3) is fixed at the shaft extension position of the main shaft of the driving motor (2), the driving motor (2) and the propeller (3) are directly arranged under water during working, the driving motor (2) is electrified to rotate to directly drive the propeller (3) to rotate, and the driving motor (2) directly drives the boat under water to run, so that the purposes of energy conservation, noise reduction and protection are achieved, and the structure is simple;
an oil-gas sealing chamber (28) is arranged on the outer side of a front end cover (26) of the driving motor (2) so as to effectively seal the driving motor (2) when working underwater, thereby preventing water from leaking into the driving motor (2);
The oil-gas sealing chamber (28) arranged on the driving motor (2) comprises an oil-gas sealing chamber front shaft seal (281), an oil-gas sealing chamber rear shaft seal (282), an oil-gas sealing chamber shell (283), oil-gas sealing chamber sealing oil (284) and oil-gas sealing chamber compressed gas (285), and is characterized in that the oil-gas sealing chamber shell (283) is connected with a front end cover of the driving motor (2), the oil-gas sealing chamber front shaft seal (281) is fixed in the shaft extension direction of the front side driving motor (2) of the oil-gas sealing chamber shell (283), the front end part of the shaft of the rotor (22) of the driving motor (2) is provided with a dynamic sealing function and a static sealing function, the rear shaft seal (282) of the oil-gas sealing chamber is fixed on the outer side wall of the front end cover (26) of the driving motor (2) at the rear side of the oil-gas sealing chamber shell (283), the shaft extension of the rotor (22) of the driving motor (2) realizes a dynamic sealing function so as to prevent the sealing oil (284) in the driving motor (2) from penetrating into an inner cavity of the driving motor (28), the sealing oil-gas sealing oil (284) is injected into the inner cavity of the driving motor (28) to keep the sealing oil-gas sealing chamber (284) at the pressure outside the oil-gas sealing chamber (284) by the sealing oil-gas sealing chamber (284) at the pressure, the pressure is larger than the water pressure of the water inlet depth when the driving motor (2) works and is smaller than the dynamic and static sealing resistance of the front shaft seal (281) of the oil-gas sealing chamber when the driving motor (2) works and the working water depth outside pressure of the driving motor (2).
2. A novel energy efficient yacht drive as claimed in claim 1, wherein: the fixed seat assembly (1) comprises a turnover mechanism (11), a steering mechanism (13) is formed, the turnover mechanism (11) comprises a turnover reduction gearbox (111), a turnover body main shaft (112), a bearing seat (113) and a turnover body longitudinal main shaft fixing assembly (134), and is characterized in that the turnover reduction gearbox (111) and the bearing seat (113) are respectively connected by the turnover body longitudinal main shaft fixing assembly (134) and the turnover body main shaft (112), the steering mechanism (13) comprises a steering driving handle (131), a steering transmission shaft (132) and a turnover body longitudinal main shaft (133), the steering driving handle (131) is connected with the upper end part of the steering transmission shaft (132), the steering transmission shaft (132) is connected with the turnover body longitudinal main shaft (133), the lower end part of the turnover body longitudinal main shaft (133) is connected with a driving motor (2), the turnover body longitudinal main shaft (133) is arranged in the turnover body longitudinal main shaft fixing assembly (134), and the steering driving handle (131) is circumferentially swung along the axis direction of the steering driving transmission shaft (132), and the steering transmission shaft (132) is directly interlocked with the upper end part of the steering transmission shaft (132), so that the running direction of the yacht (2) is changed.
3. A novel energy efficient yacht drive as claimed in claim 1, wherein: the oil-gas sealing device is characterized in that a one-way valve (286) is arranged on a front end cover (26) of a driving motor (2) connected with the oil-gas sealing chamber (28) and the driving motor (2), compressed air is led to enable compressed air (285) in the oil-gas sealing chamber to be conducted to an inner cavity of the oil-gas sealing chamber (28) in a one-way mode through the inner cavity of the driving motor (2) under the action of the one-way valve (286), and the cavity pressure of the driving motor (2) and the cavity pressure of the oil-gas sealing chamber (28) tend to be balanced.
4. A novel energy efficient yacht drive as claimed in claim 1, wherein: the fixing seat assembly (1) is provided with a compressed gas self-shrinkage air bag (14), the compressed gas self-shrinkage air bag (14) is arranged in a compressed gas self-shrinkage air bag shell (15), the compressed gas self-shrinkage air bag (14), the driving motor (2) and the motor shell (23) are connected through a gas connecting pipe (16), and when the leakage pressure of the compressed gas in the driving motor (2) is reduced due to leakage, the compressed gas self-shrinkage air bag (14) automatically shrinks to achieve the effect of pressure balance adjustment compensation.
5. A novel energy efficient yacht drive as claimed in claim 1, wherein: the dynamic and static sealing method of the driving motor (2) when working underwater is as follows: under the pressure effect of oil gas sealing chamber compressed gas (285) in water, oil gas sealing chamber sealed oil (284) is conducted to act on oil gas sealing chamber front shaft seal (281) and oil gas sealing chamber rear shaft seal (282) respectively, the pressure of oil gas sealing chamber compressed gas (285) is flexibly adjusted according to the water inlet depth of the actual driving motor (2), the pressure of oil gas sealing chamber sealed oil (284) acting on oil gas sealing chamber front shaft seal (281) is enabled to be larger than the external water pressure, at the moment, the pressure of oil gas sealing chamber sealed oil (284) acting on oil gas sealing chamber rear shaft seal (282) and the pressure of inner cavity of driving motor (2) are communicated through a one-way valve (286), the pressure of inner cavity of driving motor (2) and the pressure of oil gas sealing chamber compressed gas (285) acting on oil gas sealing chamber sealed oil (284) tend to be equal, accordingly the inner cavity of the driving motor (2) is prevented from leaking, the oil gas sealing chamber sealed oil (284) is prevented from leaking into the oil gas sealing chamber (28), and the oil gas sealing motor (284) is prevented from leaking into the driving motor (2) in an external sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421263.8A CN108482628B (en) | 2018-05-04 | 2018-05-04 | Novel energy-saving yacht driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421263.8A CN108482628B (en) | 2018-05-04 | 2018-05-04 | Novel energy-saving yacht driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108482628A CN108482628A (en) | 2018-09-04 |
| CN108482628B true CN108482628B (en) | 2024-08-23 |
Family
ID=63353552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421263.8A Active CN108482628B (en) | 2018-05-04 | 2018-05-04 | Novel energy-saving yacht driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108482628B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202749943U (en) * | 2012-08-15 | 2013-02-20 | 天津市普友机电设备制造有限公司 | Sealing oil chamber of shaft extension end of dredging motor |
| CN105501405A (en) * | 2016-01-21 | 2016-04-20 | 合肥市修竹生物科技有限公司 | Folding propeller for above-water platform |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2159359Y (en) * | 1993-04-13 | 1994-03-23 | 彭浩 | Internal impeller of yacht |
| JP2001030990A (en) * | 1999-07-22 | 2001-02-06 | Yanmar Diesel Engine Co Ltd | Outboard motor with tilt-up mechanism |
| CN206031736U (en) * | 2016-08-18 | 2017-03-22 | 苏州市阿尔帕斯动力机械有限公司 | Outboard engine |
| CN206719514U (en) * | 2017-03-07 | 2017-12-08 | 合肥倍豪海洋装备技术有限公司 | A kind of all direction steering oar sealing system |
-
2018
- 2018-05-04 CN CN201810421263.8A patent/CN108482628B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202749943U (en) * | 2012-08-15 | 2013-02-20 | 天津市普友机电设备制造有限公司 | Sealing oil chamber of shaft extension end of dredging motor |
| CN105501405A (en) * | 2016-01-21 | 2016-04-20 | 合肥市修竹生物科技有限公司 | Folding propeller for above-water platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108482628A (en) | 2018-09-04 |
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Effective date of registration: 20240724 Address after: No. 14-1, Jinglin Road, Yangtou street, Fu'an City, Ningde City, Fujian Province Applicant after: Fuan Jifa Motor Co.,Ltd. Country or region after: China Address before: No. 12 Jinglin Road, Yangquan, Yangtou, Fu'an City, Ningde City, Fujian Province 355000 Applicant before: Guo Zigang Country or region before: China |
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