GB598163A - Improvements in or relating to variable pitch propeller systems for aircraft - Google Patents
Improvements in or relating to variable pitch propeller systems for aircraftInfo
- Publication number
- GB598163A GB598163A GB33827/45A GB3382745A GB598163A GB 598163 A GB598163 A GB 598163A GB 33827/45 A GB33827/45 A GB 33827/45A GB 3382745 A GB3382745 A GB 3382745A GB 598163 A GB598163 A GB 598163A
- Authority
- GB
- United Kingdom
- Prior art keywords
- movements
- switches
- motor
- limit
- pitch
- 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
- B64C11/44—Blade pitch-changing mechanisms electric
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
Abstract
598,163. Variable-pitch propellers. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. Dec. 13, 1945, No. 33827. Convention date, Dec. 13, 1944. [Class 114] The movements between coarse and fine pitch in a propeller of the type disclosed in Specification 597,931 are carried out by electric motor at reduced voltage, whereas reverse and feathering movements are quickly made by the added effects of the motor at full voltage and of shaft-driven gearing clutched in electrically. The main governor 84 closes either switches 85 or 86 to bring in the motor 23, this being supplied at reduced voltage from the battery 83 through resistances 87, 89. Sudden engine speed changes operate auxiliary governor 16 to close switches 81, 82, thus short-circuiting resistances 87, 89 and thus giving quicker pitch changes. Limit switches 65, 66 control the extent of these movements. Feathering or reversing movements are initiated by the hand lever 92, bringing in the magnetic clutches 9,4, 98 to operate engine shaft driven gearing and also to bring full voltage on to the motor 23. Switches 95, 99 limit the movements. In a, modification, the reverse limit switch can be adjusted in flight.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US598163XA | 1944-12-13 | 1944-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB598163A true GB598163A (en) | 1948-02-11 |
Family
ID=22025445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33827/45A Expired GB598163A (en) | 1944-12-13 | 1945-12-13 | Improvements in or relating to variable pitch propeller systems for aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB598163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937837A (en) * | 2021-02-05 | 2021-06-11 | 安徽羲禾航空科技有限公司 | Variable pitch propeller |
-
1945
- 1945-12-13 GB GB33827/45A patent/GB598163A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937837A (en) * | 2021-02-05 | 2021-06-11 | 安徽羲禾航空科技有限公司 | Variable pitch propeller |
| CN112937837B (en) * | 2021-02-05 | 2024-01-05 | 安徽羲禾航空科技有限公司 | Pitch-variable propeller |
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