CN201872936U - Jet propeller - Google Patents
Jet propeller Download PDFInfo
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- CN201872936U CN201872936U CN2010205265720U CN201020526572U CN201872936U CN 201872936 U CN201872936 U CN 201872936U CN 2010205265720 U CN2010205265720 U CN 2010205265720U CN 201020526572 U CN201020526572 U CN 201020526572U CN 201872936 U CN201872936 U CN 201872936U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The utility model relates to a jet propeller which is a marine propulsion unit. The working principle of the jet propeller is similar to jet propulsion, and the difference is that the jet propeller overcomes the defects that the jet propulsion is low in efficiency and has avoidant property on the water area environment, and propulsion water taking needs to consume the mechanomotive force of the ship. The propeller does not have impellers and adopts the jet material to replace the impellers to work. The device can generate a great amount of air bubbles which play the role of enhancing the pushing effect and saving thrust in the type ship. The new energy-saving ship type can control the wake current to scatter so as to enlarge the contact surface with the reaction water; the output volume of the propeller can reinforce the reaction water constantly; the fencing device under the ship collects the air bubbles at the ship bottom so as to enable the ship bottom in the groove to obtain nearly 100 percent of air film layer. The bypass cavity of the propeller is smooth, and the problem of blocking of all the navigable waters can be avoided only through simple intercept. The water intake of the propeller is arranged at the ship head, and when the ship body goes forwards, the resisting water blocked at the ship body can be filled in the bypass actively. The propeller is simple in structure and common and single in corollary equipment.
Description
Technical field
The utility model relates to a kind of ship propeller, is particularly useful for large ship.
Background technology
At present, the propulsion mode of known this evolution of waterjet propulsion fails to be generalizable, and I understand mainly is the obstructive cause of three aspects:
1. low to full formed ship oceangoing ship performance propulsion coefficient.
2. the navigation channel water environment there is avoidant property.(both the aquatic organism in the waters, educt etc. easily caused the propelling unit fault)
3. advance water intaking to need to consume the power of ship machine about 7%.(mainly being the reason that the water channel curve is caused in the position of intake)
Summary of the invention
In order to overcome the defective of existing waterjet propulsor obstacle, the utility model provides a kind of jet flow propelling unit and is ligand---the energy-conservation type ship that makes this propelling unit generation effect.
The comprehensive technological scheme that its technical matters that solves the utility model adopts is: to utilize bubble drag-reduction and to be equipped with the method for energy-conservation type ship, overcome the low defective of full formed ship oceangoing ship performance propulsion coefficient; To adopt conductor (both water and air) indirectly-acting, overcome the defective that the navigation channel water environment is had avoidant property in the method that advances water body; Be located at the fore method with intake, overcome the defective that advances water intaking to need to consume about 7% power of ship machine.Concrete technical scheme is as follows:
One. utilize angle of rake function of jet flow and structural property, overcome full formed ship oceangoing ship performance propulsion coefficient lowly, and the navigation channel water environment is had the defective of avoidant property.Wherein:
1. the jet flow propelling unit is (to call in the following text: be (to claim: be that kinetic energy acts on the propelling water body fluid) with injection water and Air mixing body propelling unit), contain a large amount of bubbles in the fluid, bubble can float automatically when wake flow is evacuated, bubble can only gather alow under the effect of blocking apparatus alow, and the minimizing hull bottom that the aggregation amount of bubble can be bigger when enough glues resistance.
2. propelling unit is to be used for work done to absorb fore resistance water, also can reduce along with resistance water is absorbed corresponding fore resistance thereupon.
3. this propelling unit is not have impeller to penetrate to inhale in the principle work-doing cylinder chamber, and this just makes foreign material in the water body with the stream mistake, both can be difficult for taking place the blocked solid barrier of propelling unit as long as cut filtration through simple hurdle.
Angle of rake structure and feature: this propelling unit is inhaled principle and is set up it and construct basic shape and be to penetrate: long to tubular, jump not isometrical, cavity.Its functional component has: cylindrical shell, high-pressure water pipe, high-pressure air pipe.Wherein:
1. cylindrical shell is angle of rake main element.Cylindrical shell is jumped and is not waited warp, and the two ends expansion is toroidal, and the stage casing undergauge attenuates.It is angle of rake cylinder body.
High-pressure water pipe (hereinafter to be referred as: water pipe) be the propelling unit water injecting system.Water pipe is stretched in the chamber by the cylindrical shell inlet end, and the location wants placed in the middle in the chamber.The termination of water pipe is a nozzle, and nozzle is slightly interior to be received.It is the propulsion source that advances work done.
High-pressure air pipe (hereinafter to be referred as: tracheae) be the propelling unit air jet system.Tracheae is enclosed among the water pipe, location placed in the middle.The termination of tracheae and nozzle contract in slightly simultaneously.This termination does not have interior receipts, also will install shunting resistor (date core shaped) on the contrary additional.Be that the source takes place bubble.
The jet flow propelling unit is because the deployment mode of self characteristics and optimization causes and play source and conclusive effect in the Energy saving mechanism cause and effect of this type ship.
Two. utilize energy-conservation type ship and this angle of rake usefulness of doing jointly, overcome full formed ship oceangoing ship performance propulsion coefficient lowly, and it is sunken really to advance water intaking to need to consume about 7% power of ship machine.Outside, this ship reduces air draught in addition and increases the purpose structure and the device of controllability.Its concrete scheme is: propelling unit is located at stem.Intake is located at fore.Hull bottom has domatic (low early and high after).Be provided with " n " font fence under the hull bottom.Drive the building and be located at bow.Stern is provided with power-assisted steering.(main work done equipment: electrical generator, high-pressure hydraulic pump, High-Pressure Compressor)
Energy-conservation type ship functional configuration form and effect:
1. propelling unit is located at stem.By some side by side, lateral arrangement is the bottom on the bow.Its purpose:
1.1 propelling unit is a bubble source taking place, allows bubble generation source try one's best and forwardly make that hull bottom is as much as possible to be covered by bubble.
1.2 propelling unit is to be used to advance work done to absorb fore resistance water, forward effect is healed better in the position.
2. intake is located at fore.About totally two fores each one, certain intervals is stayed in the center, fence is established at the hole.The size at hole will be advisable synchronously with the overcurrent flow velocity and the speed of a ship or plane.Water inlet is opened on the bow, the water body low coverage ground in fore dead ahead can be drawn and give propelling unit, and when the speed of a ship or plane acquired a certain degree, the water body in dead ahead initiatively poured the cavate water channel thereupon rising stronger resistance potential energy.This moment, propelling unit was the passive water state that is subjected to.And the also corresponding minimizing fore of the open area at hole resistance.
3. hull bottom has domatic (low early and high after).Domatic before starting point, by behind the propelling unit tail mouth to the hull bottom end.Elongated gradual change is along the slope.Be to induce bubble alow by the functional configuration that is easy to behind the forward direction stretch.
4. be provided with " n " font fence under the hull bottom.Respectively establish together the hull bottom both sides, and the front end starting point is by propelling unit tail mouth, and the back is to the hull bottom end, and twice fence and propelling unit tail outlet structure are combined into three side sealing and close the uncovered form in back.It is not contour that the fence board cross section is hollow " V " font, and preceding high back is short.The fence outside is parallel with the side of a ship simultaneously, and inboard mutual spacing does not wait, and is beloid.It is the functional device that the interception bubble is laterally escaped.
5. drive the building and be located at bow.Place, fore deck is spacious relatively, and this just has ready conditions the castle front portion is made the air foil that reduces choke, to reduce frontal resistance.
6. the ship stern is provided with power-assisted steering.Power-assisted steering vertically is made of small-sized waterjet propulsor and short rudder blade, and rudder blade is last.This rudder has 360 ° of character that come and go arbitrarily, can realize the orientation of any instruction rapidly.
The beneficial effects of the utility model are: it is low to full formed ship oceangoing ship performance propulsion coefficient to overcome water jet propelling unit, and the navigation channel water environment is had avoidant property and advances water intaking to need to consume the defect problem of about 7% power of ship machine.And be intended to promote the advantage grade of large ship in energy-conservation, speedup, aspect being convenient to control.
Description of drawings
Fig. 1. jet flow propelling unit sectional elevation.Fig. 2. propelling unit arrangement form and correlation function structure flat sectional drawing.Fig. 3. propelling unit and correlation function structure sectional elevation.Fig. 4. power steering wheel sectional elevation.
Annotate among the figure: 1. water sucking mouth.2. high-pressure air pipe.3. high-pressure water pipe.4. nozzle.5. cylindrical shell.6. nozzle.7. water inlet.8. fence.9. cavate water channel.10. propelling unit.11. resistance slide carriage.12. breast board.13. driving building.14. high-pressure hydraulic pump water sucking mouth.15. reverse push slab.16. power-assisted steering.17. waterjet propulsor.18. rudder plate.19. rudder stock.20. transmission shaft.21. steering motor.22. worm screw.23. worm gear.24. propelling unit motor.
The specific embodiment
1, it is low to overcome efficient
Efficient is low to be that the counteraction water body falls and lost anti-drag.When propelling unit is sprayed water rapidly, because impacting water body, wake flow rises by force, the counteraction water body is flowed by scratching to become forward, cause local water body diffusion to be accelerated.If the water yield of follow-up ejection can not be excessive when exceeding the passenger distributing volume of counteraction water body, so counteractive water body just can not form advancing required antidrag.
1.1 adopt jet flow propelling unit technical goal: than the big discharge capacity of minimum velocity.
Cylindrical shell is about 3m, and the about 600-700mm in maximum gauge place is divided into three sections (Fig. 1) with functional purpose.First section slightly becomes toroidal, is the water absorbing section.Water sucking mouth and front inlet channel are straight-through, advance water to enter the water sucking mouth by fore fwd navigation channel water through water channel.Second section eel-like figure shape is the thrust segment occurred.The work done water makes it obtain stronger kinetic energy and flow velocity in this common impact that is subjected to high pressure water body and high pressure gas.Simultaneously, water body mixes the back with regard to fluidify with gas at this.The 3rd section toroidal is swollen expansion section.This section functional purpose: make and penetrate advantage behind the fluid and fall slow.It is big that the wake flow cross section becomes.And the bubble in the useful fluid floats rapidly.
Cylindrical shell tail mouth stretches in hull bottom " n " the shape fence board.
Water body injection cock pipe, the spout place is slightly interior receives, and the about 200mm of diameter (Fig. 1) is located at cylindrical shell central authorities.Spout is stretched in eel-like figure reducing starting point end.Spraying water is provided by high-pressure hydraulic pump.Injection flow rate does not need excessive, can substitute the impeller propelled water body and get final product.Jet can not scattering, is column.
Gas injection nozzle is a tubule, about diameter 20-30mm, is located at water injector central authorities.The gas jets termination is straight tube.Jet gas is provided by Air compressor.Jet amount is adjusted as required at random.Gas pressure intensity is greater than 0.5-1 times of water spray pressure.Establish the awl core about 8 ° in the jet expansion, place between two parties so that the ejection air-flow does not produce post needle-like (Fig. 1).
" needs " of jet amount are meant to reach and satisfy hull bottom bubble degree of saturation and get final product, otherwise can cause the invalid disturbance of idle escape or hull bottom water body.
1.2, increase the conflict scope that conflict face enlarges action and reaction
Propelling unit is that many covers of the little bodily form rearrange, and each interstation is located at stem bottom (Fig. 2) apart from about about 2.5-3m.Basic and the hull bottom of transverse distribution amplitude is with wide.Produce combination wake flow cross section=beam * 1-1.5m height.
The wake flow cross section of this rectangle notes the balance of power that makes up wake flow, must not have indivedual positions to have surging jet.
Propelling unit line layout provides function also for ship turning, correction, and when anxious degree turned to or wind navigates by water greatly partially, the indivedual propelling unit powers of scalable pushed away its generation partially.Under the cooperation of stern rudder, make large ship increase controllability to a certain extent and reach from tonality.
1.3, the control weightening finish resistance that stagnates of slip loosing reduces idle slide and loses and strengthen anti-drag potential energy
Control idle slide and loose after this hull bottom structure makes the fluid of ejection enter in the groove, only the side of holding, two slides in rear leave to.(conventional ship type is five, upper and lower, left and right, after.) and in these two whereabouts, it is sex-limited also to exist certain resistance.Fluid is downwards a reverse blocking and going, and more down pressure is bigger.And a large amount of bubbles have floating effect in the fluid, and this has resisted the potential energy that downward slide is loose to a certain extent.
Fluid is even more serious backward to be obstructed, because the wake flow that propelling unit is discharged contains more high pressure bubble, behind the high pressure bubble disengagement spout, can expand and come-up by anxious degree.Expand and the free potential energy that floats, upset the common tropism (make and make a concerted effort to decompose) who penetrates behind the wake flow.To making being reduced greatly that the counteraction water body spreads backward by action potential.So naturally, just generate heavier stagnant resistive.
1.4 utilizing bubble to reduce hull bottom resistance bubble is the best medium that reduces the water body resistance.
With the bubble in the propeller current, collect under the hull with the fence device.Regardless of different kinds of the bubble, under the effect of hydraulic pressure, all can be raised to hull bottom.Because of the hull bottom lateral cross section is the level of state, so the interface of hull bottom and water body laterally is all to press situation.Therefore, bubble also must automatically equalizing voltage after floating to hull bottom.If the bubble charge is enough, just make the interior hull bottom of groove obtain nearly 100% air film layer.(hull is thinner, and rolling the greater not necessarily is suitable for.)
Subdue fore and driving building resistance 1.5 utilize structure
The wave making resistance of subduing fore water resistance fore is the surging resistance (accounting for total drag 50%) that the obstacle boats and ships advance.When especially the loose type of expanded letter or the speed of a ship or plane are accelerated.
Water inlet is located at fore (Fig. 2), and the resistance water that allows a part of obstacle hull advance need not arrange and directly be absorbed by propelling unit, high-pressure hydraulic pump.Can reduce certain boats and ships frontal drag like this.
The value ratio of subduing the fore resistance should be:
The water yield of the water yield that the unit time arranges-absorb with equal time: the water yield that the unit time arranges.
Reduce long the existing of air draught high wind resistance in driving building, but common.
Be set in stem (Fig. 3) before driving the building, so just having ready conditions makes the slope of shape with the wind to body front, building, domatic with the wind should be few as far as possible concavo-convex how level and smooth, the high wind resistance when advancing with the minimizing contrary wind.
The driving building is preposition, has brought bigger safety convenience to boats and ships, as by offshore, can ship, when special meteorology, low visibility, it is vital that forward 200-300 rice close-ups is watched from a height or a distance.
2, the accessible propelling duct of employing no longer includes the avoidant property to water environment
Jet flow propelling unit duct is not the unimpeded form of cavity (Fig. 1) because of having impeller, the foreign material in all suction chambers (after simple interception) unlikely in the chamber card block up, this just is applicable to all kinds of normal navigation channels.
3, utilizing the potential energy of advancing to remove from advances water intaking to consume the ship mechanomotive force
Water inlet is located at fore, and cavate water channel and waters, navigation channel, front lead directly to (Fig. 2, Fig. 3), and when ship advanced, retaining resistance water was on the bow clamp-oned water channel automatically, and ship's speed heals the high amount of pouring into more greatly.Because of propelling unit digestion amount less than the amount of pouring into, cause water body in the water channel to continue to build up and produce the situation of boosting.Water body has had pressure, initiatively fills into propelling unit naturally.
4, new ship type
4.1 new shape special tectonic
The fore water inlet is collected fore resistance water for propelling unit
Fore is established two of water inlets.Home position: about the fore center stays 5m wide (is example with 30 meters wide ship types), each side establish one.Start point distance hull bottom 2m under the hole, width is arranged width with reference to propelling unit.The hole height need be tested definite, is slower than the speed of a ship or plane slightly and is as the criterion to reach the hole flow velocity, must not flow velocity greater than the speed of a ship or plane.Vertical interception fence is established at the hole.In the hole cavate water channel (Fig. 2).
The cavate water channel supplies water to propelling unit and high-pressure hydraulic pump.
Water channel is box big volume, about connect.Height should satisfy personnel's maintenance substantially is advisable, the same hole of anterior width, and the rear portion width should be a bit larger tham the angle of rake suction inlet in both sides.The high-pressure hydraulic pump intake is established on the top, chamber.
The cavate water channel is to realize the water intaking of propelling unit zero distance.The cavate water channel says to propelling unit and is not only the water delivery path that also being understood to is weak pressure water service.(to absorb water 8 meters is example, and static water body pressure is 0.08Mpa)
Fence board laterally slips diffusing to hull bottom interception bubble and restriction wake flow.
Elongated breast board (Fig. 2) is established to stern backward by propelling unit tail mouth in the hull bottom both sides, and breast board front end and angle of rake rear box join, and rear end opening is formed three enclosings of " n " font.Breast board is not contour, the about 1.5m of starting point, and terminal (afterbody) about 500mm, the breast board cross section is hollow " V " font.Left and right sides breast board is inboard at a distance of different wide, and beloid (Fig. 2), the outside is parallel constant.
Resistance slide carriage restriction wake flow is with regard to short-distance scatter.
Resistance slide carriage accumbency under nozzle (Fig. 2, Fig. 3), length and fence board join, and width is advisable when not having surging scattering.
Reverse push slab jet flow propelling unit does not have car-backing function.
Reverse guide when reverse push slab is used for counter pushing away.Can use the resistance slide carriage, install spoiler additional axle moving device, impeller is set level as resistance and is slipped during propelling, and touch mutually with hull bottom on the about 45 ° of tops of upset impeller during reversing, and bottom surface (Fig. 3) is stretched out in the bottom, forms a rectangular jet.
The reverse push slab structure is simple relatively, but need establish some turning cylinders and bracing strut etc. under water.Whether relate to shellfish and adhere to or durability, adopt at the ship stern as improper, establish the lifting mode electric plating propulsion, put down during reversing, the time spent is not regained after-peak tank.
After inducing bubble to spread all over, moves skewed slot shape hull bottom.
Hull bottom forms the domatic groove of low early and high after wedge shape in " n " shape fence.The wedge shape gradient is about 0.7% (Fig. 3).It is clear and coherent smooth that hull bottom is wanted, and is beneficial to bubble and evacuates and stretch.
Omnidirectional's power-assisted steering produces active rudder power and supportive boosting.
Power-assisted steering is located at the ship stern, is made up of small-sized waterjet propulsor and the vertical one of short rudder plate, and rudder plate is at last (Fig. 4).Through the transmission shaft drives impeller, transmission shaft is located among the rudder stock small propeller by electrical motor, and electrical motor is contained on the rudder stock and pushes up.
When ship zero-speed or low speed need with rudder power or emergency turn, enable propelling unit, close when cruising, keep state by rudder blade.
The power-assisted steering steering wheel is made up of electrical motor, worm screw, worm gear.It is 360 ° of any coming and going that rudder stock turns to, to finish the instruction action rapidly.The propelling unit power is slightly larger is advisable, with as reversing or boosting in case of necessity.
4.2 by wind energy
Drive the back side, building, making deliberately the formation level of wind.Slightly to arc, increase concavo-convex or metope installation careen grid etc. as metope.Also can be during conditions permit in the upper edge and the left and right sides of building body, appropriateness adds the choke device (being the sail effect) that can keep away the Tibetan, launch.When run before the wind and wind-force enable choke device when big, be combined into a larger area choke body with the building body.
Claims (3)
1. jet flow propelling unit, it is characterized in that: cylindrical shell is jumped not isometrical, and the two ends expansion is toroidal, and the stage casing undergauge attenuates, and is provided with high-pressure water pipe in the cylindrical shell, is provided with high-pressure air pipe in the high-pressure water pipe.
2. according to claim 1, the jet flow propelling unit is characterized in that: not isometrical cylindrical shell (5), and cylindrical shell central authorities establish high-pressure water pipe (3), and high-pressure water pipe central authorities establish high-pressure air pipe (2).
3. one kind is adopted the angle of rake energy-conservation type ship of the described jet flow of claim 1, it is characterized in that: many of propelling units are put (10) side by side, and two water inlets (7) are established at the fore position, and hull bottom is established " n " font breast board (12), drive the building and be located at bow (13), stern is established power-assisted steering (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205265720U CN201872936U (en) | 2010-09-13 | 2010-09-13 | Jet propeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205265720U CN201872936U (en) | 2010-09-13 | 2010-09-13 | Jet propeller |
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| CN201872936U true CN201872936U (en) | 2011-06-22 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951279A (en) * | 2011-08-17 | 2013-03-06 | 林瑞麟 | Method for increasing thrust for water jet propulsion unit |
| CN103085937A (en) * | 2011-11-01 | 2013-05-08 | 李僖年 | Single-wheel relief accelerator |
| CN103612738A (en) * | 2013-11-01 | 2014-03-05 | 武汉船用机械有限责任公司 | Water spray pushing device and matching method of prime motor |
| CN103625626A (en) * | 2012-08-22 | 2014-03-12 | 株式会社Si | Ship |
| CN103712772A (en) * | 2013-12-24 | 2014-04-09 | 中国船舶重工集团公司第七二六研究所 | Ship wake flow realistic simulation method allowing bubble density to be adjusted |
| CN104535287A (en) * | 2014-12-15 | 2015-04-22 | 唐云 | Wake flow generation integrated device for experiment |
| CN106741586A (en) * | 2016-12-22 | 2017-05-31 | 浙江大学 | A kind of ship water jet constrains bubble drag-reduction structure |
| CN109131806A (en) * | 2018-09-19 | 2019-01-04 | 浙江汉诺光电科技有限公司 | Culvert type marine propeller |
| CN109484597A (en) * | 2017-09-11 | 2019-03-19 | 李贺清 | Carrier-borne aircraft forced landing receiving ship |
| CN111591388A (en) * | 2020-06-04 | 2020-08-28 | 中国船舶科学研究中心 | Vortex control air pocket device for ship air layer resistance reduction |
| CN111638035A (en) * | 2020-04-28 | 2020-09-08 | 河海大学 | Buoyancy jet simulation device and method in internal solitary wave environment |
| WO2021164777A1 (en) * | 2020-02-21 | 2021-08-26 | 曾德润 | Deployment and installation method for direct-suction jet propulsion in underwater vehicle, and installation structure |
| CN113879501A (en) * | 2020-07-03 | 2022-01-04 | 江苏凯邦推进科技有限公司 | High-performance ship suction inlet instant backing device with water jet propeller |
| CN116424476A (en) * | 2023-06-13 | 2023-07-14 | 招商局金陵船舶(威海)有限公司 | Ship body bubble drag reduction device |
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2010
- 2010-09-13 CN CN2010205265720U patent/CN201872936U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951279A (en) * | 2011-08-17 | 2013-03-06 | 林瑞麟 | Method for increasing thrust for water jet propulsion unit |
| CN103085937A (en) * | 2011-11-01 | 2013-05-08 | 李僖年 | Single-wheel relief accelerator |
| CN103085937B (en) * | 2011-11-01 | 2015-07-15 | 李僖年 | Single-wheel relief accelerator |
| CN103625626A (en) * | 2012-08-22 | 2014-03-12 | 株式会社Si | Ship |
| CN103612738A (en) * | 2013-11-01 | 2014-03-05 | 武汉船用机械有限责任公司 | Water spray pushing device and matching method of prime motor |
| CN103612738B (en) * | 2013-11-01 | 2016-05-18 | 武汉船用机械有限责任公司 | The matching process of a kind of hydraulic jet propulsion system and prime mover |
| CN103712772A (en) * | 2013-12-24 | 2014-04-09 | 中国船舶重工集团公司第七二六研究所 | Ship wake flow realistic simulation method allowing bubble density to be adjusted |
| CN103712772B (en) * | 2013-12-24 | 2016-04-06 | 中国船舶重工集团公司第七二六研究所 | The ship wake flow realistic simulation method that bubble density is adjustable |
| CN104535287A (en) * | 2014-12-15 | 2015-04-22 | 唐云 | Wake flow generation integrated device for experiment |
| CN106741586B (en) * | 2016-12-22 | 2019-01-04 | 浙江大学 | A kind of ship water jet constraint bubble drag-reduction structure |
| CN106741586A (en) * | 2016-12-22 | 2017-05-31 | 浙江大学 | A kind of ship water jet constrains bubble drag-reduction structure |
| CN109484597A (en) * | 2017-09-11 | 2019-03-19 | 李贺清 | Carrier-borne aircraft forced landing receiving ship |
| CN109131806A (en) * | 2018-09-19 | 2019-01-04 | 浙江汉诺光电科技有限公司 | Culvert type marine propeller |
| CN109131806B (en) * | 2018-09-19 | 2020-07-17 | 浙江唯海科技有限公司 | Ducted ship propeller |
| WO2021164777A1 (en) * | 2020-02-21 | 2021-08-26 | 曾德润 | Deployment and installation method for direct-suction jet propulsion in underwater vehicle, and installation structure |
| CN111638035A (en) * | 2020-04-28 | 2020-09-08 | 河海大学 | Buoyancy jet simulation device and method in internal solitary wave environment |
| CN111638035B (en) * | 2020-04-28 | 2021-04-09 | 河海大学 | Buoyancy jet simulation device and method in internal solitary wave environment |
| CN111591388A (en) * | 2020-06-04 | 2020-08-28 | 中国船舶科学研究中心 | Vortex control air pocket device for ship air layer resistance reduction |
| CN111591388B (en) * | 2020-06-04 | 2021-01-29 | 中国船舶科学研究中心 | Vortex control air pocket device for ship air layer resistance reduction |
| CN113879501A (en) * | 2020-07-03 | 2022-01-04 | 江苏凯邦推进科技有限公司 | High-performance ship suction inlet instant backing device with water jet propeller |
| CN116424476A (en) * | 2023-06-13 | 2023-07-14 | 招商局金陵船舶(威海)有限公司 | Ship body bubble drag reduction device |
| CN116424476B (en) * | 2023-06-13 | 2023-10-20 | 招商局金陵船舶(威海)有限公司 | Ship body bubble drag reduction device |
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