CN2646045Y - Culvert fan type screw propeller - Google Patents
Culvert fan type screw propeller Download PDFInfo
- Publication number
- CN2646045Y CN2646045Y CN 200320101672 CN200320101672U CN2646045Y CN 2646045 Y CN2646045 Y CN 2646045Y CN 200320101672 CN200320101672 CN 200320101672 CN 200320101672 U CN200320101672 U CN 200320101672U CN 2646045 Y CN2646045 Y CN 2646045Y
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- CN
- China
- Prior art keywords
- blade
- utility
- ring
- retaining ring
- 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
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- 239000000463 material Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model belongs to aircraft production field, in particular to a structure of a culvert fan type screw propeller which can be used for impellers and rotors of rotorcraft. The utility model comprises an impeller blade or a rotor blade (2), an air retaining ring (1) is arranged at the vertical place of the tip of the impeller blade or the rotor blade (2), the air retaining ring (1) is connected with the blade (2) to form a closed loop arrangement, the air retaining ring (1) can also be connected with each blade (2) to form an opened loop arrangement, the air retaining ring (1) can be either made of rigidity plate material or made of flexible material. When the propeller rotates, the air retaining ring of annular closed loop or the opened loop is driven to rotate, and a dynamic culvert is formed to reduce the reflux of airflow fluid and stop the formation of annular eddy current, and improve the thrust or lift of the launch of aircraft.
Description
Technical field:
The utility model belongs to the aircraft manufacturing field, is specifically related to the structure of all spendable ducted fan formula of a kind of screw propeller and rotorcraft rotor screw propeller.
Background technology:
Propeller aeroplane or autogiro, helicopter for example, take off and flight course in, be subjected to the influence of air turbulence, along blade periphery, especially blade tip, rough air will turn back to the upper epidermis of blade, the air-flow of these rough airs and generation lift can be incorporated under the suction function on upper strata, forms the ring-type eddy current, and the span is formed downward pressure, offset lift-off lift, strengthen aircraft rising resistance, when serious, cause fatal crass's serious consequence.The applicant is subjected to the inspiration of duct formula fan to recognize that fan blade rotates in duct, and the gap between blade and the duct is very little, and the fluid reflux amount is also very little, and dynamic efficiency is higher, but its complex structure, Heavy Weight.In the prior art document, do not see relevant report as yet.
Summary of the invention:
The purpose of this utility model provides a kind of in light weight, simple in structure, good aerodynamic quality, and collection ducted fan formula and screw propeller or rotor blade advantage are the technical scheme of the ducted fan formula propeller arrangement of one.
The utility model is taked following technical scheme.
Ducted fan formula propeller arrangement, include propeller blade or rotor blade, vertically locate to connect at propeller blade or rotor blade blade tip the gas back-up ring is set, it is the closed loop setting that the gas back-up ring connects each blade, it is the open loop setting that the gas back-up ring also can connect each blade respectively, the gas back-up ring adopts the rigidity flaky material to make, and also can adopt flexible material to make.
The utlity model has tangible technique effect.When screw propeller rotates, drive the rotation of annular closed loop or open loop gas back-up ring, form a dynamic duct, this duct can reduce the backflow of air-flow fluid, stops the formation of ring-type eddy current, has promoted the lift-off thrust or the lift of aircraft.
Description of drawings:
Fig. 1 looks scheme drawing for ducted fan formula propeller arrangement master;
Fig. 2 is the attached scheme drawing of looking of ducted fan formula propeller arrangement.
Among the figure, 1-gas back-up ring, 2-blade, 3-vane frame, 4-prop shaft.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is specifically described.Embodiment is used for illustrating of the present utility model, rather than the utility model is imposed any restrictions.
Ducted fan formula propeller arrangement, include propeller blade or rotor blade (2), vertically locate to connect at propeller blade or rotor blade (2) blade tip gas back-up ring (1) is set, it is the closed loop setting that gas back-up ring (1) connects blade (2), gas back-up ring (1) also can connect each blade (2) respectively and be the open loop setting, gas back-up ring (1) adopts the rigidity flaky material to make, and also can adopt flexible material to make.
Claims (5)
1, a kind of ducted fan formula propeller structure includes propeller blade or rotor blade (2), and feature of the present utility model is vertically to locate to connect at propeller blade or rotor blade (2) blade tip gas back-up ring (1) is set.
2, ducted fan formula propeller structure according to claim 1, feature of the present utility model are that gas back-up ring (1) connection blade (2) is the closed loop setting.
3, ducted fan formula propeller structure according to claim 1, feature of the present utility model are that gas back-up ring (1) also connects each blade (2) respectively for the open loop setting.
4, ducted fan formula propeller structure according to claim 1, feature of the present utility model are that gas back-up ring (1) adopts the rigidity flaky material to make.
5, according to claim 1 or 2 or 3 or 4 described ducted fan formula propeller structures, feature of the present utility model is that gas back-up ring (1) adopts flexible sheet material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101672 CN2646045Y (en) | 2003-10-24 | 2003-10-24 | Culvert fan type screw propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101672 CN2646045Y (en) | 2003-10-24 | 2003-10-24 | Culvert fan type screw propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646045Y true CN2646045Y (en) | 2004-10-06 |
Family
ID=34304960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101672 Expired - Fee Related CN2646045Y (en) | 2003-10-24 | 2003-10-24 | Culvert fan type screw propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646045Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745328A (en) * | 2012-07-13 | 2012-10-24 | 北京理工大学 | Bypass with tip eddy-current confinement effect |
| CN104590555A (en) * | 2015-01-28 | 2015-05-06 | 王文有 | Electrodynamic multi-rotor helicopter |
| CN107284652A (en) * | 2017-06-21 | 2017-10-24 | 张家港致盈电子技术有限公司 | Integrated culvert type propeller |
| CN107336819A (en) * | 2017-07-18 | 2017-11-10 | 蔡卫忠 | Underwater culvert type propeller propulsion plant and its application method |
| CN107554754A (en) * | 2017-09-06 | 2018-01-09 | 邓安迪 | A kind of aircraft lift（Or thrust）Device |
-
2003
- 2003-10-24 CN CN 200320101672 patent/CN2646045Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745328A (en) * | 2012-07-13 | 2012-10-24 | 北京理工大学 | Bypass with tip eddy-current confinement effect |
| CN104590555A (en) * | 2015-01-28 | 2015-05-06 | 王文有 | Electrodynamic multi-rotor helicopter |
| CN107284652A (en) * | 2017-06-21 | 2017-10-24 | 张家港致盈电子技术有限公司 | Integrated culvert type propeller |
| CN107336819A (en) * | 2017-07-18 | 2017-11-10 | 蔡卫忠 | Underwater culvert type propeller propulsion plant and its application method |
| CN107336819B (en) * | 2017-07-18 | 2023-08-04 | 蔡卫忠 | Underwater ducted propeller propulsion device and application method thereof |
| CN107554754A (en) * | 2017-09-06 | 2018-01-09 | 邓安迪 | A kind of aircraft lift（Or thrust）Device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIYUAN PUYI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANG GUANGHUI Effective date: 20060217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060217 Address after: 030000, No. 3, building 23, No. 53, Dunhua North Road, Taiyuan, Shanxi, Shang Guanghui Patentee after: Taiyuan flapping wing Technology Co., Ltd. Address before: 030000 No. 3, building 23, 53 North Road, Taiyuan, Shanxi, Dunhua Patentee before: Shang Guanghui |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 Termination date: 20091124 |