GB541206A - Improvements in automatic variable pitch propellers - Google Patents
Improvements in automatic variable pitch propellersInfo
- Publication number
- GB541206A GB541206A GB7874/40A GB787440A GB541206A GB 541206 A GB541206 A GB 541206A GB 7874/40 A GB7874/40 A GB 7874/40A GB 787440 A GB787440 A GB 787440A GB 541206 A GB541206 A GB 541206A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pitch propellers
- automatic variable
- variable pitch
- springs
- variable
- 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
-
- 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
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/34—Blade pitch-changing mechanisms mechanical automatic
- B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
541,206. Variable-pitch propellers. SUGIMOTO, K., and MORI, E. May 2, 1940, No. 7874. Convention date, May 12, 1939. [Class 114] In automatic variable-pitch propellers in which the airpressure resistance acting on the surface of the variablepitch blades is balanced against the centrifugal force through the medium of spiral springs, the springs are composed of a number of separate spiral strips 6 fixed at one end to a cone member 4 radially mounted on the propeller bar and at the other end to the blade 3 through the mounting 7.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP541206X | 1939-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB541206A true GB541206A (en) | 1941-11-17 |
Family
ID=12961723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7874/40A Expired GB541206A (en) | 1939-05-12 | 1940-05-02 | Improvements in automatic variable pitch propellers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB541206A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575533A (en) * | 1947-04-16 | 1951-11-20 | Charles M Seibel | Rotor blade mounting and control |
US2693242A (en) * | 1950-09-05 | 1954-11-02 | Arthur E Elmer | Variable pitch screw propeller |
US4274807A (en) * | 1978-07-31 | 1981-06-23 | Kenney Clarence E | Speed control system for a windmill |
US4324528A (en) * | 1975-05-12 | 1982-04-13 | Sven Svenning Konsult Ab | Automatic regulating device for keeping constant the speed of wind-powered propellers |
WO2014006133A1 (en) * | 2012-07-06 | 2014-01-09 | Schottel Gmbh | Flow-based power generating plant with twist bearing in the blade root |
CN107472514A (en) * | 2017-09-20 | 2017-12-15 | 上海歌尔泰克机器人有限公司 | Variable-pitch propeller and unmanned plane |
CN113799971A (en) * | 2021-11-19 | 2021-12-17 | 中国航天空气动力技术研究院 | Passive variable pitch propeller and propeller-driven unmanned aerial vehicle |
-
1940
- 1940-05-02 GB GB7874/40A patent/GB541206A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575533A (en) * | 1947-04-16 | 1951-11-20 | Charles M Seibel | Rotor blade mounting and control |
US2693242A (en) * | 1950-09-05 | 1954-11-02 | Arthur E Elmer | Variable pitch screw propeller |
US4324528A (en) * | 1975-05-12 | 1982-04-13 | Sven Svenning Konsult Ab | Automatic regulating device for keeping constant the speed of wind-powered propellers |
US4274807A (en) * | 1978-07-31 | 1981-06-23 | Kenney Clarence E | Speed control system for a windmill |
WO2014006133A1 (en) * | 2012-07-06 | 2014-01-09 | Schottel Gmbh | Flow-based power generating plant with twist bearing in the blade root |
US20150139804A1 (en) * | 2012-07-06 | 2015-05-21 | Schottel Gmbh | Flow-based power generating plant with twist bearing in the blade root |
CN107472514A (en) * | 2017-09-20 | 2017-12-15 | 上海歌尔泰克机器人有限公司 | Variable-pitch propeller and unmanned plane |
CN107472514B (en) * | 2017-09-20 | 2024-03-08 | 上海歌尔泰克机器人有限公司 | Variable pitch propeller and unmanned aerial vehicle |
CN113799971A (en) * | 2021-11-19 | 2021-12-17 | 中国航天空气动力技术研究院 | Passive variable pitch propeller and propeller-driven unmanned aerial vehicle |
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