CN201031815Y - Double flow direction windstick - Google Patents
Double flow direction windstick Download PDFInfo
- Publication number
- CN201031815Y CN201031815Y CNU200620153980XU CN200620153980U CN201031815Y CN 201031815 Y CN201031815 Y CN 201031815Y CN U200620153980X U CNU200620153980X U CN U200620153980XU CN 200620153980 U CN200620153980 U CN 200620153980U CN 201031815 Y CN201031815 Y CN 201031815Y
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- China
- Prior art keywords
- water flowing
- blades
- flowing cylinder
- propeller
- cylinder
- 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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Abstract
The utility model is a propeller used for a watercraft and in other similar occasions and includes a plurality of blades (1) which are fixed on the outer wall of a concentric water cylinder (2), between the inner wall of which and the hub (3) a plurality of internal blades (4) are arranged. The spiral directions of the internal blades (4) in the water cylinder (2) and the blades (1) are opposite. The utility model has a water cylinder arranged in the hub vortex area and inners blades which have opposite spiral direction with the blades between the inner wall of the water cylinder and the hub, so during usage, the propeller rotates and pushes water backwards while the water in the water cylinder flows forwards, thereby improving a low pressure water flow before the propeller, preventing vortex from appearing in the hub area, strengthening a wake behind the propeller, increasing the reaction force of the propeller so that the use efficiency and the speed of the watercraft are improved.
Description
Technical field:
The utility model is a kind of Ship Propeling propeller cavitation that both can be used as, and can be used as the propeller cavitation of other similar applications again, and particularly a kind of double-flow-direction propeller belongs to the renovation technique of propeller cavitation.
Background technique:
The used propeller cavitation of the propelling screws that existing ship is used or other similar application occasions mostly adopts the structure that is evenly equipped with the identical some blades of rotation direction, the shortcoming that this propeller cavitation exists is the vortex to occur in the zone of its propeller hub, the front of propeller cavitation is low pressure current zones in use, it uses effect low, so that directly influence the speed of a ship or plane of boats and ships.
The model utility content:
The purpose of this utility model is to consider the problems referred to above and provides a kind of raising to use effect, to improve the double-flow-direction propeller of ship speed.The utility model design is ingenious, simple in structure, easy to make.
Theory diagram of the present utility model includes some blades (1) as shown in Figure 1, and some blades (1) are fixed on the outer wall of the water flowing cylinder (2) concentric with it, is provided with some interior blades (4) between the inwall of water flowing cylinder (2) and the propeller hub (3).
The interior blade (4) that is provided with in the above-mentioned water flowing cylinder (2) is opposite with the Hand of spiral of blade (1).
The interior blade (4) that is provided with in the above-mentioned water flowing cylinder (2) is identical with the pitch of blade (1), or inequality.
At least be provided with two interior blades (4) between the inwall of above-mentioned water flowing cylinder (2) and the propeller hub (3).
Water flowing cylinder (21) and back water flowing cylinder (22) two-part before above-mentioned water flowing cylinder (2) includes, the inwall and the outer wall of water flowing cylinder (21) before interior blade (4) and blade (1) are packed in respectively, back water flowing cylinder (22) is a hollow cylinder.
The inwall of above-mentioned back water flowing cylinder (22) or/and the inwall of outer diameter and preceding water flowing cylinder (21) or/and outer diameter is identical or inequality.
Above-mentioned back water flowing cylinder (22) is made with preceding water flowing cylinder (21) one, or separately makes rejoining and be one.
The utility model is owing to adopt the structure that the water flowing cylinder is set in the hub vortex district of propeller cavitation, and be provided with some interior blades opposite between the inwall of water flowing cylinder and the propeller hub with blade Hand of spiral, therefore, in use, when propeller cavitation rotates water to pusher, water in the water flowing cylinder then flows forward, thereby improved situation at the low pressure current of propeller cavitation front, eddy current appears in the zone of limiting its propeller hub, strengthen the wake of propeller, increase the reaction force of propeller cavitation, use effect, to improve the speed of a ship or plane of boats and ships thereby improve it.In addition, the utility model has also been eliminated blade at the resistance of 0.4R with lower area, improves it and uses effect.The utility model is that a kind of design is ingenious, function admirable, and convenient and practical double fluid is to propeller for vessels.
Description of drawings:
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment:
Embodiment:
Structural representation of the present utility model includes some blades 1 as shown in Figure 1, and wherein some blades 1 are fixed on the outer wall of the water flowing cylinder 2 concentric with it, is provided with some interior blades 4 between the inwall of water flowing cylinder 2 and the propeller hub 3.And the interior blade (4) that is provided with in the above-mentioned water flowing cylinder 2 is opposite with the Hand of spiral of blade 1.
The interior blade 4 that is provided with in the above-mentioned water flowing cylinder 2 is identical with the pitch of blade 1, or inequality.In the present embodiment, the interior blade 4 that is provided with in the above-mentioned water flowing cylinder 2 is inequality with the pitch of blade 1.
At least be provided with two interior blades 4 between the inwall of above-mentioned water flowing cylinder 2 and the propeller hub 3.In the present embodiment, be provided with 4 interior blades 4 between the inwall of water flowing cylinder 2 and the propeller hub 3.
The utility model is contained on the boats and ships in use as propelling screws, or is contained in other similar applications and all can.
The utility model is not limited to foregoing embodiment, and the spirit and scope of the present utility model that claim limited are all in the scope that the utility model is protected.
Claims (7)
1. a double-flow-direction propeller includes some blades (1), it is characterized in that some blades (1) are fixed on the outer wall of the water flowing cylinder (2) concentric with it, is provided with some interior blades (4) between the inwall of water flowing cylinder (2) and the propeller hub (3).
2. double-flow-direction propeller according to claim 1 is characterized in that the interior blade (4) that is provided with in the above-mentioned water flowing cylinder (2) is opposite with the Hand of spiral of blade (1).
3. double-flow-direction propeller according to claim 1 and 2 is characterized in that the interior blade (4) that is provided with in the above-mentioned water flowing cylinder (2) is identical with the pitch of blade (1), or inequality.
4. double-flow-direction propeller according to claim 3 is characterized in that being provided with two interior blades (4) at least between the inwall of above-mentioned water flowing cylinder (2) and the propeller hub (3).
5. double-flow-direction propeller according to claim 4, it is characterized in that above-mentioned water flowing cylinder (2) includes preceding water flowing cylinder (21) and back water flowing cylinder (22) two-part, the inwall and the outer wall of water flowing cylinder (21) before interior blade (4) and blade (1) are packed in respectively, back water flowing cylinder (22) is a hollow cylinder.
6. double-flow-direction propeller according to claim 5, it is characterized in that above-mentioned back water flowing cylinder (22) inwall or/and the inwall of outer diameter and preceding water flowing cylinder (21) or/and outer diameter is identical or inequality.
7. double-flow-direction propeller according to claim 6 is characterized in that above-mentioned back water flowing cylinder (22) and preceding water flowing cylinder (21) one make, or separately makes rejoining and be one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620153980XU CN201031815Y (en) | 2006-11-29 | 2006-11-29 | Double flow direction windstick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620153980XU CN201031815Y (en) | 2006-11-29 | 2006-11-29 | Double flow direction windstick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031815Y true CN201031815Y (en) | 2008-03-05 |
Family
ID=39163707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620153980XU Expired - Fee Related CN201031815Y (en) | 2006-11-29 | 2006-11-29 | Double flow direction windstick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031815Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022155864A1 (en) * | 2021-01-22 | 2022-07-28 | 镇江同舟螺旋桨有限公司 | Novel propulsion propeller for ship |
-
2006
- 2006-11-29 CN CNU200620153980XU patent/CN201031815Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022155864A1 (en) * | 2021-01-22 | 2022-07-28 | 镇江同舟螺旋桨有限公司 | Novel propulsion propeller for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20091229 |