CN204774445U - Centrifugal pump formula water spray impels amphibian device - Google Patents
Centrifugal pump formula water spray impels amphibian device Download PDFInfo
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- CN204774445U CN204774445U CN201520482372.2U CN201520482372U CN204774445U CN 204774445 U CN204774445 U CN 204774445U CN 201520482372 U CN201520482372 U CN 201520482372U CN 204774445 U CN204774445 U CN 204774445U
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- centrifugal pump
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- pump shell
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Abstract
The utility model relates to a centrifugal pump formula water spray impels amphibian device, centrifugal pump formula water -jet propulsion system is installed to the amphibian device, water -jet propulsion system includes the wheel carrier, the transmission shaft, the drive wheel, centrifugation pump case and centrifugal structure, at dual -purpose water -jet propulsion system lower part installation wheel carrier, the installation transmission shaft rotates on the wheel carrier, a drive wheel is installed in the outer end coaxial drive of transmission shaft, it is rotatory that the transmission shaft drives the drive wheel, coaxial arrangement has centrifugal pump case and centrifugal structure on the transmission shaft, the centrifugal structure circumvolution of transmission shaft drive drives rivers and carries out the centrifugation campaign, the centrifugation pump case is static relatively with the wheel carrier, the centrifugation pump case will turn to output from postcordial rivers. The simple structure of this device maintains portably, and it is convenient to realize, can realize paddling, crossing the water function.
Description
Technical field
The utility model belongs to amphibious device, the amphibious device of especially a kind of centrifugal pump type waterjet propulsion.
Background technology
Amphibian automobile concept has proposed for a long time, but always because complex structure, and the reason such as easily damaging, operation easier is large can not promote, and even connect high-grade cross country car, army car is also do not possess this function.
Through retrieval, the existing patented technology of following analogous technical fields and published technology.
The amph (CN103917387A) that a kind of ground modes and marine mode can be run, comprising: hull; Be arranged at least one discontinuities (wheel cabin) in hull; And be arranged in that at least one of this at least one discontinuities (wheel cabin) is retractible takes turns or track assembly at least in part.Hull slides hull; And this at least one discontinuities (wheel cabin) is arranged in the forebody of the hull of amph.Amph comprises at least one conduit further, it to lead in this at least one discontinuities (wheel cabin) or open at this at least one discontinuities place, or is provided with and leads in this at least one discontinuities or the open entrance and be configured for and in use guide fluid to leave this at least one discontinuities (wheel cabin) at this at least one discontinuities place.
A kind of amph (CN102941785A), belongs to a kind of vehicle, the problem mainly solve conventional truck function singleness, cannot saving oneself when unexpected experience heavy rain or mountain torrents.Its structure comprises device, cabin and float and forms, and is provided with the concordant cabin in bottom indent, edge at the rear seat portion of device, cabin left and right sides and be equipped with the float of foldable telescopic below, cabin surrounding is surrounded after all opening by float.The utility model structure is simple, use safety, convenience, is particularly useful for often occurring that the area of heavy rain and mountain torrents and aquaculture family use.
Compare by analysis, the mentality of designing of existing amph mainly installs screw propeller class thrust structure or wheeled mode of pushing as the propelling unit providing water medium power at car rear portion, when the following shortcoming of these design ubiquities:
(1) Design of Mechanical Structure is complicated, easily be out of order, need to improve original automobile dynamic system, increase drive mechanism, install steering structure additional, independently control mechanism must be installed additional simultaneously, waste time and energy, for by more difficult for wheel mechanical structure driven realization, and when travelling, easily cause Universal drive in wheel overheated, cause danger.
(2) easily damage, screw propeller is easily collided constantly at running car, navigates by water and is also easily subject to scratching of river bed, cause screw propeller to damage in river.
(3) cost is high, and the design recondition expense of a set of thruster under water, at least in tens thousand of units left and right, is difficult to obtain actual applying.
In sum, all there is complex structure, easily damage in existing propelling unit, operation easier is large, high in cost of production problem substantially, is difficult to promote the use of.So far, high-grade cross country car and army car do not possess amphibious function substantially yet, but in the way of the running car of reality, often need through river and shoal etc., especially run into inclement weather and also have city ponding problem, this all can occur vehicle to intercept on road, and the local ponding problem that especially Infrastructure is not too perfect particularly highlights, therefore, be badly in need of at present exploitation a kind of can apply can realize automobile amph propelling unit.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, there is provided a kind of amphibious device of centrifugal pump type waterjet propulsion and method of work thereof, it is simple and reasonable, with low cost, increasing hardly under the basic cost prerequisite of automobile, realize the amphibious function of automobile.
The utility model solves its technical matters and takes following technical scheme to realize:
The amphibious device of a kind of centrifugal pump type waterjet propulsion, it is characterized in that: amphibious device is provided with centrifugal pump type hydraulic efficiency jet propulsion system, hydraulic efficiency jet propulsion system comprises wheel carrier, transmission shaft, drive wheel, centrifugal pump shell and exocentric structure, in dual-purpose hydraulic efficiency jet propulsion system bottom, wheel carrier is installed, wheel carrier rotates transmission shaft is installed, the outer end coaxial drive of transmission shaft is provided with a drive wheel, transmission shaft drives drive wheel to rotate, transmission shaft is coaxially installed with centrifugal pump shell and exocentric structure, transmission shaft drives exocentric structure coaxial rotating to drive current to carry out centrifugal motion, centrifugal pump shell and wheel carrier geo-stationary, current after centrifugal carry out turning to output by centrifugal pump shell.
And, the direction manual shift of described centrifugal pump shell.
And described exocentric structure is centrifugal impeller, centrifugal pump shell coaxial rotation regulates and is arranged on transmission shaft, and centrifugal impeller is coaxially arranged in centrifugal pump shell; Transmission shaft drives centrifugal impeller to rotate through the transmission axis hole at centrifugal impeller center;
The structure of centrifugal pump shell is specially: centrifugal pump shell main body is cylinder barrel shaped structure, and the axial end of centrifugal pump shell is shaped with water inlet, is shaped with water conservancy diversion water outlet in the tangential direction of centrifugal pump shell main body side.
And, the transmission shaft of water inlet one end of centrifugal pump shell is coaxially installed with a water suction impeller.
And described exocentric structure comprises ring-shaped splash guard and hub-type centrifugal impeller, is coaxially fixed with a ring-shaped splash guard in wheel hub inner circumferential, is shaped with water inlet in the middle part of this ring-shaped splash guard; Be coaxially installed with a hub-type centrifugal impeller in wheel hub inside manger, this hub-type centrifugal impeller radial equipartition is packed in drive in wheel hub and by wheel hub and carries out coaxial rotating; On transmission shaft inside hub-type centrifugal impeller, coaxial sleeve is equipped with a water conservancy diversion pump case, the main body of water conservancy diversion pump case is cylinder barrel shaped structure, this water conservancy diversion pump case center is shaped with transmission axis hole, the end face periphery that water conservancy diversion pump case closes on hub-type centrifugal impeller is all shaped with annular water inlet, is shaped with diversion outlet in the tangential direction of water conservancy diversion pump case main body side.
And described amphibious device is car or other amph carrier arrangements.
Advantage of the present utility model and good effect are:
1, the employing vector hydraulic efficiency jet propulsion system of this device can be arranged on four of 4-wheel driven car wheels or two two drive wheels of driving, and for 4-wheel driven car, vehicle realizes turning to and the dual-use function that advances in vehicle water can obtain power in water after; Drive for two, can be arranged in two front power wheels, front axle initiatively wheelset guiding spout carries out that adjustment realizes turning in water, advance dual-use function.
2, the structure of this device is simple, easy maintenance, it is convenient to realize, can realize paddling, crossing water function, and go for the more shallow place use of water body, the vehicle of this propelling unit is installed, because the screw propeller rotated is inner at wheel, automatically the pattern using wheel rolling to advance in more shallow river bed is advanced, and can not have an impact to spiral paddle wheel.
3, this device is equipped with propelling unit on four wheels of 4-wheel driven car, individually provides power, reduces the risk of the shutdown caused after propeller arrangement of the prior art may be wound around by foreign matter.
Accompanying drawing explanation
Fig. 1 is the section-drawing of the amphibious device of embodiment 1 centrifugal pump type waterjet propulsion;
Fig. 2 is the amphibious device lateral plan of embodiment 1 centrifugal pump type waterjet propulsion;
Fig. 3 is embodiment 1 centrifugal pump type waterjet propulsion amphibious device front detail drawing (removal drive wheel);
Fig. 4 is embodiment 1 centrifugal pump type waterjet propulsion amphibious device back side detail drawing (removal drive wheel);
Fig. 5 is the overall section-drawing of the amphibious device of embodiment 2 centrifugal pump type waterjet propulsion;
Fig. 6 is the amphibious device lateral plan (drive wheel is analysed and observe) of embodiment 2 centrifugal pump type waterjet propulsion;
Fig. 7 is the inside structure schematic diagram of centrifugal pump shell in embodiment 2;
Fig. 8 is the outboard structure schematic diagram of centrifugal pump shell in embodiment 2;
Fig. 9 is the mechanical analysis figure of wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The amphibious device of a kind of centrifugal pump type waterjet propulsion, this water advances amphibious device to be provided with centrifugal pump type hydraulic efficiency jet propulsion system.
Hydraulic efficiency jet propulsion system comprises wheel carrier 8, transmission shaft 7, drive wheel, centrifugal pump shell and exocentric structure, in dual-purpose hydraulic efficiency jet propulsion system bottom, the wheel carrier for installing drive wheel is installed, wheel carrier rotates installs transmission shaft, the outer end coaxial drive of transmission shaft is provided with a drive wheel, drive wheel is made up of the wheel hub 2 be coaxially closely set with and tire 1, transmission shaft drives drive wheel to rotate, and drive wheel is mainly used in travelling on land.
Transmission shaft is coaxially installed with centrifugal pump shell and exocentric structure, and transmission shaft drives exocentric structure coaxial rotating to drive current to carry out centrifugal motion, centrifugal pump shell and wheel carrier geo-stationary, and the current after centrifugal carry out turning to output by centrifugal pump shell, generation propulsive force.
The direction manual shift of centrifugal pump shell.
The principle of work of this propelling unit is:
When transmission shaft drives exocentric structure to rotate, current enter in centrifugal pump shell by water inlet, move in a circle on the one hand with centrifugal impeller, and dish out to periphery from centrifugal impeller center under the influence of centrifugal force on the other hand, current obtain speed energy by centrifugal impeller; Be thrown toward the current of impeller outer edge, the runner through volute centrifugal pump shell flow to the water outlet of centrifugal pump shell; Current are when liquid is dished out from impeller water outlet, centrifugal impeller core causes meiobar, with the pressure initiation difference of pressure sucking liquid level, so current are constantly inhaled into by centrifugal pump shell water inlet, current are the angled ejection with axial direction after centrifugal pump shell, and this angle is greater than 0 ° and is less than 180 °, and current are after the extruder chamber guide functions of centrifugal pump shell, flow direction-changing produces reaction force acts on wheel carrier, thus produces onward impulse; Centrifugal pump shell rotates adjustment and is arranged on transmission shaft, by adjustment centrifugal pump shell rotational angle, can control centrifugal pump water outlet towards, thus the different directions making current direction transmission shaft vertical ejection, produces the application force advancing, retreat.
Amphibious device described in the present embodiment is car or other amph carrier arrangements.
This centrifugal pump type hydraulic efficiency jet propulsion system can be arranged in four wheels of 4-wheel driven car, or drives to install in monosymmetric drive wheel two.
Embodiment 1
Centrifugal pump type hydraulic efficiency jet propulsion system
See structure shown in accompanying drawing 1 to accompanying drawing 4, be described for convenience of explanation for direction shown in accompanying drawing 1, right side is outside drive wheel, and left side is inside drive wheel; Turbine 8 for installing drive wheel is installed in propelling unit bottom, wheel carrier rotates installs transmission shaft 7, the outer end coaxial drive of transmission shaft is provided with a drive wheel, drive wheel is made up of the wheel hub 2 be coaxially closely set with and tire 1, transmission shaft drives drive wheel to rotate, drive wheel is mainly used in travelling on land
This device innovative point is:
The transmission shaft of drive wheel is installed centrifugal pump type hydraulic efficiency jet propulsion system, and this hydraulic efficiency jet propulsion system comprises centrifugal pump shell 4 and centrifugal impeller 6,
Centrifugal pump shell is volute hollow structure, be specially, centrifugal pump shell main body is cylinder barrel shaped structure, and axis one side end face of centrifugal pump shell is all shaped with water inlet 5, the present embodiment centrifugal pump shell water inlet shown in the drawings is towards the wheel hub of next-door neighbour, and this water inlet also can towards reversing sense; Water conservancy diversion water outlet 9 is shaped with in the tangential direction of centrifugal pump shell main body side;
Centrifugal pump shell is coaxially arranged on transmission shaft, and centrifugal pump shell can regulate rotation on transmission shaft, the transmission shaft in centrifugal pump shell is coaxially installed with a centrifugal impeller; Transmission shaft drives centrifugal impeller synchronous axial system through the transmission axis hole 3 that centrifugal impeller center is made.
The transmission shaft of water inlet one end of centrifugal pump shell is also coaxially installed with a water suction impeller 10, and water suction impeller rotates with transmission shaft, and water imports in centrifugal pump shell by water suction impeller fast.
Described centrifugal pump type hydraulic efficiency jet propulsion system can adopt the multiple centrifugal pump structures such as scroll casing type, built-in guide-vane, stator cartridge type or positive displacement all can realize, liquid is made to transfer to water outlet from water inlet during device work, thus generation propulsive force, finally act on vehicle frame.
When this device is at land locomotion, produce by wheel rolling and with ground that to rub be the application force that power produces forward-reverse.When this device travels in water, water suction wheel rotation is driven by transmission shaft, water is sucked centrifugal pump shell, when driving centrifugal impeller to rotate by transmission shaft, the current sucking centrifugal pump shell move in a circle with centrifugal impeller on the one hand, dish out to periphery from centrifugal impeller center under the influence of centrifugal force on the one hand, current obtain speed energy from impeller.Be thrown toward the current of impeller outer edge, the runner through volute centrifugal pump shell flow to the water outlet of centrifugal pump shell.Current are when liquid is dished out from impeller, centrifugal impeller core causes meiobar, with the pressure initiation difference of pressure sucking liquid level, so current are constantly inhaled into by centrifugal pump shell water inlet, current are the angled ejection with axial direction after centrifugal pump shell, this angle is greater than 0 ° and is less than 180 °, and flow direction-changing is produced antagonistic force and acted on wheel carrier by centrifugal pump shell.Centrifugal pump shell is connected with transmission shaft, and can rotate on its transmission shaft, therefore by adjustment its rotational angle, then can control centrifugal pump water outlet towards, and then all directions ejection making current direction transmission shaft vertical, thus produce the application force advancing, retreat.
Because one-sided water inlet is less, therefore installing water suction impeller additional increases flooding quantity, meets the water requirements of centrifugal impeller.Centrifugal impellers blades plane forms to acutangulate blade by with transmission shafts.
Simultaneously, this kind of design ap-plication, when power steering is taken turns, is taken turns when the oblique rear water spray of wheel word, is produced steering torque to amphibious device, can play the effect controlling amphibious device and turn to equally, wheel steering direction is identical with the direction that amphibious device produces moment of torsion;
Embodiment 2
The amphibious hydraulic efficiency jet propulsion system of hub-type exocentric structure
See structure shown in accompanying drawing 5 to accompanying drawing 8, the present embodiment is described with direction shown in accompanying drawing 5 for convenience of explanation, and right side is outside drive wheel, and left side is inside drive wheel; Wheel carrier 8 for installing drive wheel is installed in dual-purpose hydraulic efficiency jet propulsion system bottom, wheel carrier rotates installs transmission shaft 7, the outer end coaxial drive of transmission shaft is provided with a drive wheel, drive wheel is made up of the wheel hub 2 be coaxially closely set with and tire 1, transmission shaft drives drive wheel to rotate, drive wheel is mainly used in travelling on land
This device is at innovative point:
The transmission shaft of drive wheel installs hydraulic efficiency jet propulsion system, and this hydraulic efficiency jet propulsion system comprises ring-shaped splash guard 11, water conservancy diversion pump case 12 and hub-type centrifugal impeller 13,
Coaxially be fixed with a ring-shaped splash guard in wheel hub inner circumferential, be shaped with water inlet in the middle part of this ring-shaped splash guard, transmission shaft is passed by this water inlet center;
A hub-type centrifugal impeller is coaxially installed with in wheel hub inside manger, this hub-type centrifugal impeller radial equipartition is packed in drive in wheel hub and by wheel hub and carries out coaxial rotating, leave gap between hub-type centrifugal impeller center and transmission shaft, entered the center of hub-type centrifugal impeller by water inlet;
On transmission shaft inside hub-type centrifugal impeller, coaxial sleeve is equipped with a water conservancy diversion pump case 12, water conservancy diversion pump case and wheel carrier keep geo-stationary under steam, water conservancy diversion pump case concrete structure is see accompanying drawing 7 and accompanying drawing 8, the main body of water conservancy diversion pump case is cylinder barrel shaped structure, this water conservancy diversion pump case center is shaped with transmission axis hole, the end face periphery that water conservancy diversion pump case closes on hub-type centrifugal impeller is all shaped with annular water inlet, is shaped with diversion outlet 9 in the tangential direction of water conservancy diversion pump case main body side; After the centrifugal current of hub-type centrifugal impeller to be entered by the water inlet of annular and turn in water conservancy diversion pump case, finally flowed out by diversion outlet.
The centrifugal pump shell of the present embodiment is made up of ring-shaped splash guard, wheel hub and water conservancy diversion pump case.
When this device is at land locomotion, produce by wheel rolling and with ground that to rub be the application force that power produces forward-reverse.When this device travels in water, when driving centrifugal impeller to rotate by transmission shaft, current move in a circle with centrifugal impeller on the one hand, and dish out to periphery from centrifugal impeller center under the influence of centrifugal force on the one hand, current obtain speed energy from impeller.Be thrown toward the current of impeller outer edge, the runner through volute centrifugal pump shell flow to the water outlet of centrifugal pump shell.Current are when liquid is dished out from impeller, centrifugal impeller core causes meiobar, with the pressure initiation difference of pressure sucking liquid level, so current are constantly inhaled into by centrifugal pump shell water inlet and centrifugal pump shell water inlet, current are the angled ejection with axial direction after centrifugal pump shell, this angle is greater than 0 ° and is less than 180 °, and flow direction-changing is produced antagonistic force and acted on wheel carrier by centrifugal pump shell.
Centrifugal pump shell is connected with transmission shaft, and can rotate on its transmission shaft, therefore by adjustment its rotational angle, then can control centrifugal pump water outlet towards, and then the vertical all directions of current direction transmission shaft all can be sprayed, thus produce the application force advancing, retreat.
Shown in accompanying drawing 9, mechanics principle analysis:
According to principle of conservation of momentum, M is the Water quality unit time flowing through device centrifugal impeller, and V is Y-direction water velocity
F × t=M × V terminal velocity-M × V initial velocity
Because the current flowing through device wheel hub are zero at Y-axis initial velocity, after the ejection of guiding spout, speed is V, and institute is with the formula through being derived as
F × t=M × V terminal velocity
Learn according to this formula, this kind of power obtain manner efficiency is higher, does not substantially have the loss of transmission aspect.The sizes values of power is decided by engine power, and the larger waterjet propulsion effect of power is better.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (6)
1. the amphibious device of centrifugal pump type waterjet propulsion, it is characterized in that: amphibious device is provided with centrifugal pump type hydraulic efficiency jet propulsion system, hydraulic efficiency jet propulsion system comprises wheel carrier, transmission shaft, drive wheel, centrifugal pump shell and exocentric structure, in dual-purpose hydraulic efficiency jet propulsion system bottom, wheel carrier is installed, wheel carrier rotates transmission shaft is installed, the outer end coaxial drive of transmission shaft is provided with a drive wheel, transmission shaft drives drive wheel to rotate, transmission shaft is coaxially installed with centrifugal pump shell and exocentric structure, transmission shaft drives exocentric structure coaxial rotating to drive current to carry out centrifugal motion, centrifugal pump shell and wheel carrier geo-stationary, current after centrifugal carry out turning to output by centrifugal pump shell.
2. the amphibious device of centrifugal pump type waterjet propulsion according to claim 1, is characterized in that: the direction manual shift of described centrifugal pump shell.
3. the amphibious device of centrifugal pump type waterjet propulsion according to claim 1, is characterized in that: described exocentric structure is centrifugal impeller, and centrifugal pump shell coaxial rotation regulates and is arranged on transmission shaft, and centrifugal impeller is coaxially arranged in centrifugal pump shell; Transmission shaft drives centrifugal impeller to rotate through the transmission axis hole at centrifugal impeller center;
The structure of centrifugal pump shell is specially: centrifugal pump shell main body is cylinder barrel shaped structure, and the axial end of centrifugal pump shell is shaped with water inlet, is shaped with water conservancy diversion water outlet in the tangential direction of centrifugal pump shell main body side.
4. the amphibious device of centrifugal pump type waterjet propulsion according to claim 3, is characterized in that: on the transmission shaft of water inlet one end of centrifugal pump shell, be coaxially installed with a water suction impeller.
5. the amphibious device of centrifugal pump type waterjet propulsion according to claim 1, it is characterized in that: described exocentric structure comprises ring-shaped splash guard and hub-type centrifugal impeller, coaxially be fixed with a ring-shaped splash guard in wheel hub inner circumferential, in the middle part of this ring-shaped splash guard, be shaped with water inlet; Be coaxially installed with a hub-type centrifugal impeller in wheel hub inside manger, this hub-type centrifugal impeller radial equipartition is packed in drive in wheel hub and by wheel hub and carries out coaxial rotating; On transmission shaft inside hub-type centrifugal impeller, coaxial sleeve is equipped with a water conservancy diversion pump case, the main body of water conservancy diversion pump case is cylinder barrel shaped structure, this water conservancy diversion pump case center is shaped with transmission axis hole, the end face periphery that water conservancy diversion pump case closes on hub-type centrifugal impeller is all shaped with annular water inlet, is shaped with diversion outlet in the tangential direction of water conservancy diversion pump case main body side.
6. the amphibious device of centrifugal pump type waterjet propulsion according to claim 1, is characterized in that: described amphibious device is car or other amph carrier arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482372.2U CN204774445U (en) | 2015-07-07 | 2015-07-07 | Centrifugal pump formula water spray impels amphibian device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482372.2U CN204774445U (en) | 2015-07-07 | 2015-07-07 | Centrifugal pump formula water spray impels amphibian device |
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| Publication Number | Publication Date |
|---|---|
| CN204774445U true CN204774445U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482372.2U Expired - Fee Related CN204774445U (en) | 2015-07-07 | 2015-07-07 | Centrifugal pump formula water spray impels amphibian device |
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| CN (1) | CN204774445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034727A (en) * | 2015-07-07 | 2015-11-11 | 朱沫 | Centrifugal pump type water jetting propulsion amphibious device and work method thereof |
| CN108945367A (en) * | 2018-07-01 | 2018-12-07 | 陆永柱 | Propulsion steering control system for pushing hull forward |
-
2015
- 2015-07-07 CN CN201520482372.2U patent/CN204774445U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034727A (en) * | 2015-07-07 | 2015-11-11 | 朱沫 | Centrifugal pump type water jetting propulsion amphibious device and work method thereof |
| CN108945367A (en) * | 2018-07-01 | 2018-12-07 | 陆永柱 | Propulsion steering control system for pushing hull forward |
| CN108945367B (en) * | 2018-07-01 | 2020-11-24 | 六安永贞匠道机电科技有限公司 | Propulsion steering control system for propelling ship body to move forwards |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180707 |