CN2389840Y - Propeller - Google Patents
Propeller Download PDFInfo
- Publication number
- CN2389840Y CN2389840Y CN 99237907 CN99237907U CN2389840Y CN 2389840 Y CN2389840 Y CN 2389840Y CN 99237907 CN99237907 CN 99237907 CN 99237907 U CN99237907 U CN 99237907U CN 2389840 Y CN2389840 Y CN 2389840Y
- Authority
- CN
- China
- Prior art keywords
- blade
- propeller
- axial diversion
- diversion sheet
- screw propeller
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a propeller which comprises a propeller hub and blades and is characterized in that the ends of the blades are connected with axial flow guiding sheets. The propeller is not only favorable to enhance the efficiency of marine propulsion systems, but also can generate large pushing force.
Description
The utility model relates to a kind of screw propeller, the particularly a kind of screw propeller that can promote the marine propuision system work efficiency.
As everyone knows, common screw propeller easily produces the cavity loss during rotary work in water, and this not only can reduce the work efficiency of marine propuision system, and can cause the vibration of stern tube shaft.
The purpose of this utility model is that a kind of screw propeller will be provided, and it helps improving the efficient of marine propuision system.
The utility model comprises propeller hub and blade, it is characterized in that the blade end is connected with the axial diversion sheet.
The utility model is in water during rotary work, because the effect of axial diversion sheet, may be pushed to rear side in company with a large amount of current of screw propeller afterbody from the water that radially is thrown out of with forcing, so not only can avoid producing cavity loss phenomenon, and helping screw propeller, to obtain bigger thrust be antagonistic force), thus the efficient of marine propuision system improved.
Below in conjunction with drawings and Examples the utility model is specifically described.
Fig. 1 is the embodiment organigram.
Fig. 2 is the A-A section-drawing of Fig. 1.
With reference to accompanying drawing, embodiment of the present utility model comprises propeller hub 6 and blade 1, it is characterized in that 1) the blade end is connected with axial diversion sheet 2; 2) show that the angle α of axial diversion sheet and blade thrust face 3 is 75 °-105 ° on the radial section of crossing mid blade and propeller hub line of centers, the best is 80 °-87 °; 3) axial diversion sheet 2 is as the airfoil (see figure 1).
For the ease of may be from the current centralized control that radially the is thrown out of afterbody at screw blade, the interface point of above-mentioned blade guide margin and axial diversion sheet should be greater than the interface point of blade lagging edge and the axial diversion sheet high S2 of distance to the propeller hub line of centers apart from S1 to the propeller hub line of centers.
Embodiment of the present utility model not only can effectively reduce the cavity loss, reduces vibration, improves the work efficiency of marine propuision system, and can produce than high thrust.
Claims (5)
1, a kind of screw propeller comprises propeller hub and blade, it is characterized in that the blade end is connected with the axial diversion sheet.
2, screw propeller according to claim 1, the interface point that it is characterized in that blade guide margin and axial diversion sheet to the propeller hub line of centers apart from S1 should greater than the interface point of blade lagging edge and axial diversion sheet to the propeller hub line of centers apart from S2.
3, screw propeller according to claim 1 and 2 is characterized in that showing that the angle α of axial diversion sheet and blade thrust face is 75 °-105 ° on the radial section of crossing mid blade and propeller hub line of centers.
4, screw propeller according to claim 3 is characterized in that described angle α is 80 °-87 °.
5, screw propeller according to claim 3 is characterized in that axial diversion sheet such as airfoil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237907 CN2389840Y (en) | 1999-06-11 | 1999-06-11 | Propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237907 CN2389840Y (en) | 1999-06-11 | 1999-06-11 | Propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2389840Y true CN2389840Y (en) | 2000-08-02 |
Family
ID=34025458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99237907 Expired - Fee Related CN2389840Y (en) | 1999-06-11 | 1999-06-11 | Propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2389840Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328742A (en) * | 2011-05-26 | 2012-01-25 | 郑霞 | Bernoulli propeller |
| CN102874394A (en) * | 2012-10-22 | 2013-01-16 | 罗士武 | Spiral step type propeller turbine |
| CN104229109A (en) * | 2013-06-07 | 2014-12-24 | 柯永泽 | Diffusion type end plate propeller |
| CN105416551A (en) * | 2015-11-25 | 2016-03-23 | 镇江同舟螺旋桨有限公司 | High-power maritime work electric-driven all-rotation propelling plant |
| US10155575B2 (en) | 2013-06-07 | 2018-12-18 | National Taiwan Ocean University | Diffuser-type endplate propeller |
-
1999
- 1999-06-11 CN CN 99237907 patent/CN2389840Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328742A (en) * | 2011-05-26 | 2012-01-25 | 郑霞 | Bernoulli propeller |
| CN102874394A (en) * | 2012-10-22 | 2013-01-16 | 罗士武 | Spiral step type propeller turbine |
| CN104229109A (en) * | 2013-06-07 | 2014-12-24 | 柯永泽 | Diffusion type end plate propeller |
| US10155575B2 (en) | 2013-06-07 | 2018-12-18 | National Taiwan Ocean University | Diffuser-type endplate propeller |
| CN105416551A (en) * | 2015-11-25 | 2016-03-23 | 镇江同舟螺旋桨有限公司 | High-power maritime work electric-driven all-rotation propelling plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |