CN107298159A - A kind of new and effective ducted propeller - Google Patents
A kind of new and effective ducted propeller Download PDFInfo
- Publication number
- CN107298159A CN107298159A CN201710486559.3A CN201710486559A CN107298159A CN 107298159 A CN107298159 A CN 107298159A CN 201710486559 A CN201710486559 A CN 201710486559A CN 107298159 A CN107298159 A CN 107298159A
- Authority
- CN
- China
- Prior art keywords
- propeller
- cone
- axle
- thrust
- new
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/28—Other means for improving propeller efficiency
-
- 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
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of new and effective ducted propeller, including conduit, propeller and thrust multiplier, the inside of the conduit is provided with propeller, the rear portion of the propeller is coaxially installed with thrust multiplier, the thrust multiplier includes cone, axle and the collector ring being coaxially disposed, the axle is connected between cone and collector ring, the big end of the cone and the rear end of propeller are connected, small end connects the axle, flow deflector is provided between cone and collector ring, flow deflector surrounds the circumferentially evenly spaced arrangement of the axle.The present invention's is simple in construction, compact, it is easy to which processing and fabricating, cost is low, when using while thrust is increased, improves operating efficiency.
Description
Technical field
The present invention relates to propeller for vessels technical field, more particularly to a kind of new and effective ducted propeller.
Background technology
Into 21st century, environment and energy problem's situation are more and more severeer.Shipping as commodity logistics master
Strength is transported, a large amount of non-renewable energy resources amplification quantity dusty gas and greenhouse gases side by side are consumed in shipping process, for
Such case, International Maritime Organization is proposed Ship Design energy efficiency index (EEDI), and is enforced in 2013, therefore, hair
Open up marine energy-saving technology extremely urgent.
Rectified action and increase propeller taper load of the conventional manifold propeller due to conduit, so that thrust increases
30% or so, it is particularly suitable for use in low speed, needs to use on the ship of high thrust, such as tugboat, push wheel and cargo ship.Although conventional lead
Pipe propeller can produce larger thrust, but the moment of torsion that its same propeller is subject to also increases the power ability, it is necessary to larger
Make its rotary work, therefore conventional manifold propeller propulsive efficiency is not often high, operating cost is high, and not environmentally.
The content of the invention
For the shortcoming in above-mentioned existing production technology, the present invention provides a kind of new and effective ducted propeller, in increase
While thrust, operating efficiency is improved.
In order to solve the above problems, the present invention uses following scheme：
Install a kind of new and effective ducted propeller, including conduit, propeller and thrust multiplier, the inside of the conduit
There is propeller, the rear portion of the propeller is coaxially installed with thrust multiplier, and the thrust multiplier includes being coaxially disposed
Cone, axle and collector ring, the axle is connected between cone and collector ring, and the big end of the cone and the rear end of propeller are solid
Even, small end connects the axle, and flow deflector is provided between cone and collector ring, and flow deflector surrounds the circumferentially evenly spaced cloth of the axle
Put.
It is used as the further improvement of above-mentioned technical proposal：
It is evenly spaced on the outer cone side face of the cone to be provided with flow deflector, the number of blade and propeller of the flow deflector
Number of blade is identical or is propeller blade number ± 1.
The axle is formed from the small end end extension of cone.
The technical effects of the invention are that：
1) compact conformation of the present invention, rationally, make with it is easy for installation, cost is low.
2) ducted propeller of the invention, its thrust multiplier produces the interaction of root trailing vortex with propeller, weaken or
Eliminate the hub whirlpool in wake flow so that new catheter rear propeller pressure has been raised, conduit and airscrew thrust will all increase,
New and effective ducted propeller has bigger thrust.
3) ducted propeller of the invention, propeller thrust in itself and moment of torsion increase, the efficiency base of propeller itself
This is constant, because duct thrust also increases, and has reclaimed spin loss energy in wake flow, therefore new and effective ducted propeller has more
High propulsive efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of new and effective ducted propeller.
Fig. 2 is the structural representation of new and effective ducted propeller part thrust multiplier.
Wherein：1st, conduit；2nd, propeller；3rd, thrust multiplier；4th, cone；5th, axle；6th, flow deflector；7th, collector ring.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings, how the present invention is applied whereby
Technological means solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.Need explanation
As long as not constituting each embodiment in conflict, the present invention and each feature in each embodiment can be combined with each other,
The technical scheme formed is within protection scope of the present invention.
As shown in figure 1, the new and effective ducted propeller of the present embodiment, including conduit 1, propeller 2 (contain blade and oar
Hub) and thrust multiplier 3, the inside of conduit 1 is provided with propeller 2, and the rear portion of propeller 2 is coaxially installed with thrust times
Increase device 3, thrust multiplier 3 is rotated together with propeller 2, thrust multiplier 3 can be fabricated together with propeller 2,
It is connected after being manufactured with parts processing by modes such as welding or bolts.
As shown in Fig. 2 thrust multiplier 3 includes cone 4, axle 5 and the collector ring 7 being coaxially disposed, axle 5 is connected to cone 4
Between collector ring 7, the big end of cone 4 is connected with the rear end of propeller 2, and small end connecting shaft 5, axle 5 can be from cone 4
The extension of small end end is formed.Flow deflector 6 is provided between cone 4 and collector ring 7, flow deflector 6 is around the circumferential evenly spaced cloth of axle 5
Put.It is evenly spaced on the outer cone side face of cone 4 to be provided with flow deflector 6, the number of blade and the number of blade phase of propeller 2 of flow deflector 6
With or for number of blade ± 1 of propeller 2.
The operation principle of the ducted propeller of the present invention is as follows：
When propeller 2 and thrust multiplier 3 are rotated together with, the root trailing vortex phase that thrust multiplier 3 is produced with propeller 2
Interaction, weakens or eliminates the hub whirlpool in wake flow so that new catheter rear propeller pressure has been raised, conduit 1 and spiral
The thrust of oar 2 will all increase, and new and effective ducted propeller has bigger thrust, and compared with conventional manifold oar, thrust can increase
4%~6%.
When propeller 2 works, in addition to it can produce hub whirlpool, the pond of whole wake zone can produce circumferential rotation speed
Degree, thrust multiplier 3 interacts with the rotary speed that propeller 2 is produced, and the thrust and moment of torsion of propeller 2 itself increase,
The efficiency of itself of propeller 2 is basically unchanged, and because the thrust of conduit 1 also increases, has reclaimed the spin loss in the wake zone of propeller 2
Energy, new and effective ducted propeller has higher propulsive efficiency, compared with conventional propeller, and propulsive efficiency can improve 2~
5%.
Embodiment provided above is the better embodiment of the present invention, only illustrates the present invention for convenient, not to this hair
It is bright to make any formal limitation, any those of ordinary skill in the art, if putting forward skill not departing from the present invention
In the range of art feature, using the equivalent embodiment locally changed or modified made by disclosed technology contents, and
Without departing from the technical characteristic content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (3)
1. a kind of new and effective ducted propeller, it is characterised in that：Including conduit (1), propeller (2) and thrust multiplier (3),
The inside of the conduit (1) is provided with propeller (2), and the rear portion of the propeller (2) is coaxially installed with thrust multiplier
(3), the thrust multiplier (3) includes cone (4), axle (5) and the collector ring (7) being coaxially disposed, and the axle (5) is connected to cone
Between body (4) and collector ring (7), the big end of the cone (4) is connected with the rear end of propeller (2), and small end connects the axle
(5) flow deflector (6), is provided between cone (4) and collector ring (7), flow deflector (6) is around the circumferential evenly spaced cloth of the axle (5)
Put.
2. new and effective ducted propeller according to claim 1, it is characterised in that：The outer cone week of the cone (4)
Evenly spaced on face to be provided with flow deflector (6), the number of blade of the flow deflector (6) is identical with propeller (2) number of blade or is spiral shell
Revolve oar (2) number of blade ± 1.
3. new and effective ducted propeller according to claim 1, it is characterised in that：The axle (5) is from the small of cone (4)
The extension of end end is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486559.3A CN107298159A (en) | 2017-06-23 | 2017-06-23 | A kind of new and effective ducted propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486559.3A CN107298159A (en) | 2017-06-23 | 2017-06-23 | A kind of new and effective ducted propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107298159A true CN107298159A (en) | 2017-10-27 |
Family
ID=60135919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710486559.3A Pending CN107298159A (en) | 2017-06-23 | 2017-06-23 | A kind of new and effective ducted propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107298159A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104154A (en) * | 2019-04-27 | 2019-08-09 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump-jet propulsor |
| CN111645838A (en) * | 2020-06-15 | 2020-09-11 | 中国船舶科学研究中心 | Pipe oar supports subregion guiding device that prerevolves |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2710685A1 (en) * | 1977-03-11 | 1978-09-14 | Nicolaus Kaufer | Propeller tunnel for ships under arctic conditions - has funnel shaped inlet extension piece tapering in water flow direction |
| JPS58167294A (en) * | 1982-03-29 | 1983-10-03 | Hitachi Zosen Corp | Nozzled electrically driven propeller for vessel |
| DE3508203A1 (en) * | 1985-03-08 | 1986-09-11 | Rudolf Dr. 6800 Mannheim Wieser | Marine propulsion |
| CN202368779U (en) * | 2011-12-12 | 2012-08-08 | 江苏华海船舶设计有限公司 | Energy-saving propeller |
| CN103507934A (en) * | 2012-06-18 | 2014-01-15 | 无锡市同创玻璃钢船艇厂 | Efficient ducted propeller |
| CN103803040A (en) * | 2014-01-24 | 2014-05-21 | 中国船舶重工集团公司第七○二研究所 | Propeller hub vortex eliminating wheel |
-
2017
- 2017-06-23 CN CN201710486559.3A patent/CN107298159A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2710685A1 (en) * | 1977-03-11 | 1978-09-14 | Nicolaus Kaufer | Propeller tunnel for ships under arctic conditions - has funnel shaped inlet extension piece tapering in water flow direction |
| JPS58167294A (en) * | 1982-03-29 | 1983-10-03 | Hitachi Zosen Corp | Nozzled electrically driven propeller for vessel |
| DE3508203A1 (en) * | 1985-03-08 | 1986-09-11 | Rudolf Dr. 6800 Mannheim Wieser | Marine propulsion |
| CN202368779U (en) * | 2011-12-12 | 2012-08-08 | 江苏华海船舶设计有限公司 | Energy-saving propeller |
| CN103507934A (en) * | 2012-06-18 | 2014-01-15 | 无锡市同创玻璃钢船艇厂 | Efficient ducted propeller |
| CN103803040A (en) * | 2014-01-24 | 2014-05-21 | 中国船舶重工集团公司第七○二研究所 | Propeller hub vortex eliminating wheel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104154A (en) * | 2019-04-27 | 2019-08-09 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump-jet propulsor |
| CN111645838A (en) * | 2020-06-15 | 2020-09-11 | 中国船舶科学研究中心 | Pipe oar supports subregion guiding device that prerevolves |
| CN111645838B (en) * | 2020-06-15 | 2021-04-06 | 中国船舶科学研究中心 | Pipe oar supports subregion guiding device that prerevolves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171027 |
|
| RJ01 | Rejection of invention patent application after publication |