CN201729269U - Efficiency increasing propeller - Google Patents
Efficiency increasing propeller Download PDFInfo
- Publication number
- CN201729269U CN201729269U CN2010201905361U CN201020190536U CN201729269U CN 201729269 U CN201729269 U CN 201729269U CN 2010201905361 U CN2010201905361 U CN 2010201905361U CN 201020190536 U CN201020190536 U CN 201020190536U CN 201729269 U CN201729269 U CN 201729269U
- Authority
- CN
- China
- Prior art keywords
- paddle
- outer ring
- utility
- model
- outer shroud
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an efficiency increasing propeller, comprising a paddle and an outer ring. The outer ring is fixed at the outer side of the paddle, and integral design and manufacturing are adopted for the outer ring and the paddle. The utility model can provide more lifting force under the same rotate speed. The whole paddle and the outer ring are made of reinforcing carbon fiber material, and the paddle and the outer ring are integrally designed and manufactured, thereby the utility model has light weight and good toughness.
Description
Technical field: the utility model relates to a kind of properller, and especially a kind of enhanced propeller is mainly used on the piston engine of light-small aircraft.
Background technology: present driving engine screw propeller is when rotating speed improves, and the outside of blade at first reaches velocity of sound, produces drag due to shock wave, and the efficient that has influenced screw propeller improves.
The utility model content: at above-mentioned the deficiencies in the prior art, the utility model provides a kind of enhanced propeller.
For achieving the above object, the technical solution adopted in the utility model is: enhanced propeller, comprise blade and outer shroud, and outer shroud is fixed on the outside of blade, and both adopt the integrated design manufacturing.
The utility model provides more lift under identical rotating speed.Entire blade and outer shroud adopt the enhanced carbon fiber material, make blade and outer shroud integrated design manufacturing, and be in light weight, good toughness.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the cross-sectional view of outer shroud.
The specific embodiment:
As depicted in figs. 1 and 2: enhanced propeller, comprise blade 2 and outer shroud 1, outer shroud 1 is fixed on the outside of blade 2, and both adopt the integrated design manufacturing.The cross section of outer shroud 1 is an aerofoil profile, thereby makes the fluid on its upper and lower surface produce the asymmetry that flows, and the upper surface flow velocity increases, and pressure reduces; The lower surface flow velocity reduces, and pressure increases, and obtains lift.The leading edge of aerofoil profile (being a wide side) is connected with blade 2, and trailing edge (being a narrow side) connects very firm in the outside like this.
Claims (2)
1. enhanced propeller comprises blade, it is characterized in that: also comprise the outer shroud that is fixed on the blade outside, the cross section of outer shroud is an aerofoil profile, and the leading edge of aerofoil profile is connected with blade, and trailing edge is in the outside.
2. enhanced propeller as claimed in claim 1 is characterized in that: described paddle and outer shroud adopt the integrated design manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201905361U CN201729269U (en) | 2010-05-14 | 2010-05-14 | Efficiency increasing propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201905361U CN201729269U (en) | 2010-05-14 | 2010-05-14 | Efficiency increasing propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201729269U true CN201729269U (en) | 2011-02-02 |
Family
ID=43520426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201905361U Expired - Fee Related CN201729269U (en) | 2010-05-14 | 2010-05-14 | Efficiency increasing propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201729269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823557A (en) * | 2010-05-14 | 2010-09-08 | 沈阳航空航天大学 | Enhanced propeller |
-
2010
- 2010-05-14 CN CN2010201905361U patent/CN201729269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823557A (en) * | 2010-05-14 | 2010-09-08 | 沈阳航空航天大学 | Enhanced propeller |
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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: 20110202 Termination date: 20130514 |