GB388827A - Improvements in and relating to screw propellers and the like - Google Patents
Improvements in and relating to screw propellers and the likeInfo
- Publication number
- GB388827A GB388827A GB2367431A GB2367431A GB388827A GB 388827 A GB388827 A GB 388827A GB 2367431 A GB2367431 A GB 2367431A GB 2367431 A GB2367431 A GB 2367431A GB 388827 A GB388827 A GB 388827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- slot
- screw propellers
- leading
- slots
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Centrifugal Separators (AREA)
Abstract
388,827. Screw propellers. GRAY, J. C. and SELMAN, G. S., Caxton House, Westminster. May 23, 1932, No. 23674. [Class 114.] Screw propellers are provided with slotted blades wherein the slot passes from the driving to the following face and these slots are arranged so that the entrance side is substantially normal to the fluid pressure and that the leaving side is approximately tangential to the back surface and is characterized in that bridging-pieces 3 of streamline contour are provided to connect the parts of the blades divided at the slots. The slot 1 at the leading edge of the blade is preferably substantially parallel thereto and a slot intermediate of the blade is arranged approximately midway between the leading and rear edges. As an alternative the leading or nose portion of the blade may be formed separately from the main part of the blade but the slot between them is of the form described and connected by the streamline bridge-pieces.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2367431A GB388827A (en) | 1932-05-23 | 1932-05-23 | Improvements in and relating to screw propellers and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2367431A GB388827A (en) | 1932-05-23 | 1932-05-23 | Improvements in and relating to screw propellers and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB388827A true GB388827A (en) | 1933-03-09 |
Family
ID=10199436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2367431A Expired GB388827A (en) | 1932-05-23 | 1932-05-23 | Improvements in and relating to screw propellers and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB388827A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2622686A (en) * | 1942-07-21 | 1952-12-23 | Chevreau Rene Louis Pier Marie | Wind motor |
WO1982002694A1 (en) * | 1981-02-13 | 1982-08-19 | Guenther Spranger | Method and device for decreasing the flow resistance on wings particularly aerofoils,and blades of turbomachines exposed to gaz flux such as air |
WO2011020458A3 (en) * | 2009-08-19 | 2011-09-15 | Konrad Buckel | Rotor element for a fluid to flow around and rotor |
CN102777418A (en) * | 2012-07-09 | 2012-11-14 | 广东美的电器股份有限公司 | Axial flow wind wheel and air-conditioning outdoor unit |
-
1932
- 1932-05-23 GB GB2367431A patent/GB388827A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2622686A (en) * | 1942-07-21 | 1952-12-23 | Chevreau Rene Louis Pier Marie | Wind motor |
WO1982002694A1 (en) * | 1981-02-13 | 1982-08-19 | Guenther Spranger | Method and device for decreasing the flow resistance on wings particularly aerofoils,and blades of turbomachines exposed to gaz flux such as air |
US4687416A (en) * | 1981-02-13 | 1987-08-18 | Spranger Guenther | Method and device for decreasing the flow resistance on wings particularly aerofoils and blades of turbomachines exposed to gas flux such as air |
WO2011020458A3 (en) * | 2009-08-19 | 2011-09-15 | Konrad Buckel | Rotor element for a fluid to flow around and rotor |
CN102777418A (en) * | 2012-07-09 | 2012-11-14 | 广东美的电器股份有限公司 | Axial flow wind wheel and air-conditioning outdoor unit |
CN102777418B (en) * | 2012-07-09 | 2015-04-15 | 美的集团股份有限公司 | Axial flow wind wheel and air-conditioning outdoor unit |
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