CN107725476A - A kind of adjustable hydraulic propeller of blade-section - Google Patents
A kind of adjustable hydraulic propeller of blade-section Download PDFInfo
- Publication number
- CN107725476A CN107725476A CN201710887484.XA CN201710887484A CN107725476A CN 107725476 A CN107725476 A CN 107725476A CN 201710887484 A CN201710887484 A CN 201710887484A CN 107725476 A CN107725476 A CN 107725476A
- Authority
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- China
- Prior art keywords
- blade
- hub
- impeller hub
- impeller
- section
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
-
- 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
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0467—Spherical bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/084—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with two or more pump stages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of adjustable hydraulic propeller of blade-section, valve, nozzle, magnetic force sliding sleeve, stator hub, bearing and bevel gear are rotated including water inlet flow channel, pump shaft, bucket front, blade, bucket rear, impeller hub, stator, blade, one end of the pump shaft is connected through water inlet flow channel with impeller hub, bearing is arranged on the end of impeller hub, the end connection of stator hub and impeller hub；Blade is axial-flow type, includes the bucket front and bucket rear of disconnection, and bucket front is fixed on impeller hub, and bucket rear can rotate valve rotation around blade；The impeller blade that the present invention passes through Optimizing Reconstruction water jet propulsion pump, so that spray pump blade realizes that part is adjustable, on the premise of vane inlet laying angle is not changed, change blade exit laying angle by adjusting partial blade, so that water jet propulsion pump is also at optimal operating condition point operation under variable working condition, greatly improve spray pump operating efficiency is anti-and cavitation performance, increase its service life.
Description
Technical field
The invention belongs to a kind of aial flow impeller of water-jet device peculiar to vessel, and in particular to a kind of blade-section is adjustable
Section formula hydraulic propeller, by adjusting blade-section so that water jet propulsion pump peculiar to vessel adapts to ship departure, accelerates, turns, falling
The variable parameter operation state such as car, traction, translation, the operating efficiency of spray pump is improved, improve the anti-cavitation performance of spray pump, increasing it makes
Use the life-span.
Technical background
Hydraulic propeller peculiar to vessel have mobility is high, maneuverability is good, anti-cavitation ability is strong, resistance is small, vibration and noise is low,
The advantages that propulsive efficiency is high when shallow-water navigation strong adaptability, high speed, have on Fast passenger ferry and military high-performance naval vessel wide
General application.As the core component of hydraulic propeller, the theory of water jet propulsion pump is broken through with designing in recent decades
The development of property.
It is well known that when ship is run on the water, various special circumstances can be run into, such as：Departure, accelerate, turn
Situations such as curved, reversing, traction, translation, it can all cause water jet propulsion pump to be under inclined operating mode and run.Operation can drop under this state
The operating efficiency of low spray pump, the service life for producing cavitation, reducing spray pump.In the design process of existing hydraulic jet propulsion impeller of pump,
Few solution design methods that system is provided for such a running situation.Therefore, water jet propulsion pump is efficiently transported under inclined operating mode
Row is that Ship Propeling technology industry is badly in need of.
A kind of mixed-flow water jet propulsion pump is disclosed in the Chinese invention patent that Application No. 201110087127.8
Blade angle full-adjusting device, but this patent does not optimize to the basic structure of vane pump.Application No.
A kind of axial flow water jet propulsion pump is disclosed in the Chinese invention patent of No. 201110199640.6, but this patent is only a simplified
The structure of water jet propulsion pump, impeller blade is not optimized to improve the operating efficiency of spray pump.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of adjustable hydraulic propeller of blade-section, Optimizing Reconstruction water spray pushes away
Enter the impeller blade of pump so that spray pump blade realizes that part is adjustable, on the premise of vane inlet laying angle is not changed, passes through
Adjusting partial blade and change blade exit laying angle so that water jet propulsion pump is also at optimal operating condition point operation under variable working condition,
The operating efficiency of raising spray pump resists and cavitation performance, increases its service life.
Technical scheme is used by realizing above-mentioned purpose：A kind of adjustable hydraulic propeller of blade-section, including push away
Enter device main body；The propeller main body includes water inlet flow channel, pump shaft, bucket front, blade, bucket rear, impeller hub, led
Leaf, blade rotate valve, nozzle, stator hub and bearing；
One end of the pump shaft is connected through water inlet flow channel with impeller hub, and bearing is arranged on the end of impeller hub, leads
The end of hub and impeller hub connects；Blade is axial-flow type, includes the bucket front and bucket rear of disconnection, and bucket front is solid
Be scheduled on impeller hub, the upper end that bucket rear and blade rotate valve core is welded as a whole, blade rotate valve body shell with
Impeller hub is connected through a screw thread；
Inside the impeller hub light is enclosed on containing the smooth cylinder sleeve being connected as a single entity with wheel hub, magnetic force sliding sleeve
On sliding cylindrical sleeve；The lower end that blade on the impeller hub rotates valve core is connected by connecting rod with elastic force bar one end,
The other end of elastic force bar is connected with magnetic force sliding sleeve；
The magnetic force sliding sleeve can drive elastic force bar along light with the change in the electric coil magnetic field in stator
Sliding cylindrical sleeve is horizontally slipped, and axial force is changed into rotation torque by the motion of elastic force bar drivening rod, connecting rod, and band movable vane piece turns
Dynamic valve rotation so that bucket rear can rotate clockwise or counterclockwise certain angle as blade rotates valve；
The stator inward flange is fixedly connected with stator hub, and stator outward flange is fixedly connected with runner inner wall.
In such scheme, bucket front and bucket rear the length ratio scope is 2/3~3/2, blade interior thickness
It is bigger than the thickness at vane inlet place 1.2~1.5 times, improve the hydraulic performance of spray pump.
In such scheme, it is 0 degree that the blade section, which overlaps, improves the adaptability of impeller variable parameter operation.
In such scheme, the angle that the bucket rear can rotate valve rotation with blade is -30 °~30 °.
The angle set by the rotation of bucket rear so that water jet propulsion pump is in optimal operating condition point operation, improves
The operating efficiency of spray pump.One impeller is transformed to first, secondary both stage impellers when bucket rear rotates simultaneously, and influent stream passes through
The precompressed of primary runner so that secondary impeller inlet pressure increases, so as to improve the anti-cavitation performance of spray pump, increase
Its service life.
Further, the blade rotates valve and connecting rod junction, and there is finish glue the junction of elastic force bar and connecting rod
Body graphite mixed lubrication, it can play the effect such as good high temperature resistant, lubricating and wear-resisting.
In such scheme, one end of the pump shaft is arranged on impeller hub by key connection impeller hub, the bearing
End and fixed by hex nut.
Further, the bearing of the impeller is the deep groove ball bearing of self-lubricating.
In such scheme, in addition to bevel gear；The other end that the pump shaft is located at outside water inlet flow channel is provided with the cone tooth
Wheel.
Compared with prior art, beneficial effects of the present invention are：
1. the present invention optimizes transformation to the impeller blade of hydraulic propeller, it can adjust and do not changing by blade-section
On the premise of import laying angle, change the outlet laying angle of blade, so that hydraulic propeller is in various variable parameter operation shapes
Can be in optimal operating condition point under state, reduce loss of efficiency, improve anti-cavitation performance, increase hydraulic propeller makes the life-span.
2. the present invention pass through operating space oblique leverage so that mixed flow hydraulic propeller blade synchronization around own axes just
The angle of setting is rotated backward, to improve efficiency, noise and vibration is reduced, improves anti-foams performance.
3. the present invention is by stretching out outside bending to one cone tooth of setting on that section of pump shaft between the first outer bearing carrier
Wheel, the point diameter of the bevel gear are less than its rear end.Power is inputed into axial flow water jet propulsion pump from the direction perpendicular to pump shaft,
It is not necessary to be equipped with large-scale transfer case or more small-sized transfer cases, not only simplify structure, reduce axial dimension length, alleviate weight
Amount, and also reduce manufacturing cost.
Brief description of the drawings
Fig. 1 is the overall schematic of the hydraulic propeller.
Fig. 2 is the sectional view of the hydraulic propeller.
Fig. 3 is the partial section at Fig. 2 hydraulic propeller impeller As.
Fig. 4 is the enlarged drawing of blade.
Wherein：1. water inlet flow channel, 2. pump shafts, 3. bucket fronts, 4. blades, 5. bucket rears, 6. impeller hubs, 7. lead
Leaf, 8. blades rotation valve, 9. nozzles, 10. elastic force bars, 11. magnetic force sliding sleeves, 12. stator hubs, 13. bearings, 14. keys, 15.
Section, 16. outlet edges, 17. enter waterside, 18. bevel gears.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description：
As shown in accompanying drawing 1,2,3,4, Fig. 1 is the overall schematic of the hydraulic propeller, and Fig. 2 is cuing open for the hydraulic propeller
View, Fig. 3 are the partial sections at Fig. 2 hydraulic propeller impeller As, and Fig. 4 is the enlarged drawing of blade.
A kind of adjustable hydraulic propeller of blade-section, including propeller main body；The propeller main body is mainly by entering
Water flow passage 1, pump shaft 2, bucket front 3, blade 4, bucket rear 5, impeller hub 6, stator 7, blade rotate valve 8, nozzle 9, bullet
Each part composition such as power bar 10, magnetic force sliding sleeve 11, stator hub 12, bearing 13, key 14 and bevel gear 18.
As shown in Fig. 2,3 and 4, one end of the pump shaft 2 is connected through water inlet flow channel 1 by key 14 with impeller hub 6, pump
The other end of axle 2 is provided with bevel gear 18, and the bevel gear 18 simplifies structure, reduces axial dimension length, alleviates weight simultaneously
And manufacturing cost is reduced, bearing 13 is arranged on the end of impeller hub 6, and the thrust bearing 13 of the impeller is the depth of self-lubricating
Ditch ball bearing.The stator hub 12 is connected with the end of impeller hub 6；The inward flange of stator 7 is fixedly connected with stator hub 12,
The outward flange of stator 7 is fixedly connected with runner inner wall.The blade 4 of the impeller is axial-flow type, and the blade 4 is by being fixed on impeller wheel
The bucket front 3 of hub 6 and can be rotated around blade valve clockwise, the bucket rear 5 that rotates counterclockwise certain angle form, blade
4 interior thicknesses are bigger than vane inlet place 1.2~1.5 times, and bucket front 3 and the length ratio scope of bucket rear 5 are 2/3~3/2,
Improve the hydraulic performance of spray pump.
Contain the smooth cylinder sleeve being connected as a single entity with wheel hub, 11 sets of magnetic force sliding sleeve in the inside of impeller hub 6
On smooth cylinder sleeve；Blade on the impeller hub 6 rotates valve 8 and passes through elastic force bar 10 and the phase of magnetic force sliding sleeve 11
Connection.
The blade rotates valve 8 and is connected with one end of elastic force bar 10 by connecting rod, the other end connection magnetic force of elastic force bar 10
Sliding sleeve 11.The magnetic force sliding sleeve 11 can change with magnetic field caused by hot-wire coil drive elastic force bar 10 along with leaf
The smooth cylinder sleeve that wheel wheel hub 6 is connected as a single entity horizontally slips, and the motion of the drivening rod of elastic force bar 10, connecting rod change axial force
For rotation torque, band movable vane piece rotates valve 8 and rotated so that bucket rear 5 rotates set angle.The blade rotates valve 8
Finish aquadag mixed lubrication is used with the junction of connecting rod junction, and elastic force bar 10 and connecting rod.
The bucket rear 5 rotates valve 8 with blade and is welded as a whole, and blade rotates valve 8 and passes through angular thread and impeller wheel
Hub 6 is connected.The bucket rear 5 of the impeller can rotate valve 8 with blade and rotate certain degree, and blade rotates valve 8 and elastic force
Connected between bar 10 by the connecting rod of certain length, the length of connecting rod may be such that the angle of rotation of bucket rear 5 in -30 °~30 ° models
Enclose interior regulation.The angle of setting is rotated by bucket rear 5 so that hydraulic propeller is in optimal operating condition point operation, improves
The operating efficiency of spray pump.One impeller is transformed to first, secondary both stage impellers when bucket rear 5 rotates simultaneously, enters circulation
Cross the precompressed of primary runner so that secondary impeller inlet pressure increases, and so as to improve the anti-cavitation performance of spray pump, increases
Add its service life.
As shown in figure 4, it is 0 degree that the section 15 of blade 4, which overlaps, the adaptability of impeller variable parameter operation is improved.Water outlet
The rotation that side 16 can rotate valve 8 by blade changes placement angle so that impeller adapts to variable parameter operation, improves the work of impeller
Make efficiency.Enter waterside 17 according to axial-flow pump design theory, be designed as fixedly secured angle.
The impeller blade that the present invention passes through Optimizing Reconstruction hydraulic propeller so that hydraulic propeller blade realizes that part is adjustable
Section, on the premise of vane inlet laying angle is not changed, change blade exit laying angle by adjusting partial blade so that water spray
Propeller is also at optimal operating condition point operation under variable working condition, and the operating efficiency for greatly improving hydraulic propeller resists and cavitation
Can, increase its service life.
Those listed above is a series of to describe illustrating only for possible embodiments of the invention in detail,
They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change
It should be included in the scope of the protection.
Claims (8)
1. a kind of adjustable hydraulic propeller of blade-section, it is characterised in that including propeller main body；The propeller main body
Including water inlet flow channel (1), pump shaft (2), bucket front (3), blade (4), bucket rear (5), impeller hub (6), stator (7),
Blade rotates valve (8), nozzle (9), stator hub (12) and bearing (13)；
One end of the pump shaft (2) is connected through water inlet flow channel (1) with impeller hub (6), and bearing (13) is arranged on impeller hub
(6) end, stator hub (12) are connected with the end of impeller hub (6)；Blade (4) is before axial-flow type, including the blade of disconnection
Portion (3) and bucket rear (5), bucket front (3) are fixed on impeller hub (6), and bucket rear (5) rotates valve (8) with blade
The upper end of valve element is welded as a whole, and blade rotates valve (8) valve shell and is connected through a screw thread with impeller hub (6)；
Contain the smooth cylinder sleeve being connected as a single entity with wheel hub, magnetic force sliding sleeve (11) set inside the impeller hub (6)
On smooth cylinder sleeve；The lower end that blade on the impeller hub (6) rotates valve (8) valve element passes through connecting rod and elastic force bar
(10) one end connects, and the other end of elastic force bar (10) is connected with magnetic force sliding sleeve (11)；
The magnetic force sliding sleeve (11) can drive elastic force bar (10) with the change in the electric coil magnetic field in stator (7)
Horizontally slipped along smooth cylinder sleeve, band movable vane piece rotates valve (8) rotation, and the bucket rear (5) can rotate with blade
Valve (8) rotates clockwise or counterclockwise certain angle；
Stator (7) inward flange is fixedly connected with stator hub (12), and stator (7) outward flange is fixedly connected with runner inner wall.
2. the adjustable hydraulic propeller of blade-section as claimed in claim 1, it is characterised in that the bucket front (3)
It is 2/3~3/2 with bucket rear (5) length ratio scope, blade (4) interior thickness is bigger by 1.2 than the thickness of blade (4) entrance
~1.5 times.
3. the adjustable hydraulic propeller of blade-section as claimed in claim 1, it is characterised in that blade (4) section
Overlap as 0 degree.
4. the adjustable hydraulic propeller of blade-section as claimed in claim 1, it is characterised in that the bucket rear (5)
The angle that valve (8) rotation can be rotated with blade is -30 °~30 °.
5. the adjustable hydraulic propeller of elastic force bar elastic force bar blade-section as claimed in claim 1, it is characterised in that described
Blade rotates valve (8) and connecting rod junction, and there is finish aquadag mixed lubrication the junction of elastic force bar (10) and connecting rod.
6. the adjustable hydraulic propeller of blade-section as claimed in claim 1, it is characterised in that the one of the pump shaft (2)
End connects impeller hub (6) by key (14), and the bearing (13) is arranged on the end of impeller hub (6) and passes through hex nut
It is fixed.
7. the adjustable hydraulic propeller of blade-section as claimed in claim 6, it is characterised in that the bearing of the impeller
(13) it is the deep groove ball bearing of self-lubricating.
8. the adjustable hydraulic propeller of blade-section as claimed in claim 1, it is characterised in that also including bevel gear
(18)；The pump shaft (2) is located at the other end of water inlet flow channel (1) outside and is provided with bevel gear (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887484.XA CN107725476B (en) | 2017-09-27 | 2017-09-27 | A kind of adjustable hydraulic propeller of blade-section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887484.XA CN107725476B (en) | 2017-09-27 | 2017-09-27 | A kind of adjustable hydraulic propeller of blade-section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725476A true CN107725476A (en) | 2018-02-23 |
| CN107725476B CN107725476B (en) | 2019-03-05 |
Family
ID=61208109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710887484.XA Active CN107725476B (en) | 2017-09-27 | 2017-09-27 | A kind of adjustable hydraulic propeller of blade-section |
Country Status (1)
| Country | Link |
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| CN (1) | CN107725476B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609147A (en) * | 2018-05-18 | 2018-10-02 | 中船黄埔文冲船舶有限公司 | A kind of ship leakage runner and fabrication and installation method |
| 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 |
| CN110594199A (en) * | 2019-09-27 | 2019-12-20 | 大连理工大学 | Water jet propulsion pump with variable cross-section water inlet pipeline type water inlet flow channel |
| CN111846176A (en) * | 2020-07-30 | 2020-10-30 | 扬州大学 | Nozzle-submerged water jet propeller capable of backing and working method thereof |
| CN111907675A (en) * | 2020-08-06 | 2020-11-10 | 扬州大学 | Short-time high-thrust water jet propulsion pump device externally connected with jet flow and using method thereof |
| CN112855992A (en) * | 2021-01-12 | 2021-05-28 | 宁波方太厨具有限公司 | Check valve and gas water heater system comprising same |
| CN113148089A (en) * | 2021-04-09 | 2021-07-23 | 清华大学 | Punching press formula water conservancy propulsion pump based on gaseous pressure boost |
| CN115042948A (en) * | 2022-07-11 | 2022-09-13 | 中国船舶工业集团公司第七0八研究所 | Multi-tube electric water-jet propeller |
| CN115140282A (en) * | 2022-05-31 | 2022-10-04 | 中国船舶重工集团公司第七一九研究所 | Anti-cavitation propeller and propulsion system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609147A (en) * | 2018-05-18 | 2018-10-02 | 中船黄埔文冲船舶有限公司 | A kind of ship leakage runner and fabrication and installation method |
| CN108609147B (en) * | 2018-05-18 | 2020-01-10 | 中船黄埔文冲船舶有限公司 | Ship water inlet flow channel and manufacturing and mounting method |
| 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 |
| CN110594199A (en) * | 2019-09-27 | 2019-12-20 | 大连理工大学 | Water jet propulsion pump with variable cross-section water inlet pipeline type water inlet flow channel |
| CN111846176A (en) * | 2020-07-30 | 2020-10-30 | 扬州大学 | Nozzle-submerged water jet propeller capable of backing and working method thereof |
| CN111907675A (en) * | 2020-08-06 | 2020-11-10 | 扬州大学 | Short-time high-thrust water jet propulsion pump device externally connected with jet flow and using method thereof |
| CN112855992A (en) * | 2021-01-12 | 2021-05-28 | 宁波方太厨具有限公司 | Check valve and gas water heater system comprising same |
| CN113148089A (en) * | 2021-04-09 | 2021-07-23 | 清华大学 | Punching press formula water conservancy propulsion pump based on gaseous pressure boost |
| CN115140282A (en) * | 2022-05-31 | 2022-10-04 | 中国船舶重工集团公司第七一九研究所 | Anti-cavitation propeller and propulsion system |
| CN115042948A (en) * | 2022-07-11 | 2022-09-13 | 中国船舶工业集团公司第七0八研究所 | Multi-tube electric water-jet propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725476B (en) | 2019-03-05 |
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Address after: 212000 101 South Xu Road, run Zhou District, Zhenjiang, Jiangsu Patentee after: MARINE EQUIPMENT AND TECHNOLOGY INSTITUTE JIANGSU University OF SCIENCE AND TECHNOLOGY Patentee after: Jiangsu KaiBang Promotion Technology Co.,Ltd. Address before: 212000 101 South Xu Road, run Zhou District, Zhenjiang, Jiangsu Patentee before: MARINE EQUIPMENT AND TECHNOLOGY INSTITUTE JIANGSU University OF SCIENCE AND TECHNOLOGY Patentee before: Zhenjiang KaiBang Propulsion Technology Co.,Ltd. Address after: 212000 101 South Xu Road, run Zhou District, Zhenjiang, Jiangsu Patentee after: MARINE EQUIPMENT AND TECHNOLOGY INSTITUTE JIANGSU University OF SCIENCE AND TECHNOLOGY Patentee after: Zhenjiang KaiBang Propulsion Technology Co.,Ltd. Address before: 212000 101 South Xu Road, run Zhou District, Zhenjiang, Jiangsu Patentee before: MARINE EQUIPMENT AND TECHNOLOGY INSTITUTE JIANGSU University OF SCIENCE AND TECHNOLOGY Patentee before: ZHENJIANG CHAPPO MARINE EQUIPMENT Co.,Ltd. |
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