GB585056A - Improvements in contra-rotating propellers with variable pitch blades - Google Patents
Improvements in contra-rotating propellers with variable pitch bladesInfo
- Publication number
- GB585056A GB585056A GB15694/44A GB1569444A GB585056A GB 585056 A GB585056 A GB 585056A GB 15694/44 A GB15694/44 A GB 15694/44A GB 1569444 A GB1569444 A GB 1569444A GB 585056 A GB585056 A GB 585056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- moved
- blades
- contra
- propellers
- aug
- 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
- B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
585,056. Variable-pitch propellers. GENERAL MOTORS S CORPORATION, Aug. 17, 1944, No. 15694. Convention date, Aug. 19, 1943. [Class 114] Contra-rotating sets of propellers 20, 28 are each provided with their own operating pumps 194, driven by the engine shaft for changing pitch. The in. board pump output is controlled by the valve 270 which moves radially under to the influence of centrifugal force against the spring-loaded lever 276 to give constant speed running, the speed being selected by the position of the roller 16 moved by the track 333 by the pilot. The output of the outboard engine pump is controlled, by the valve 438, which is moved radially by the cam 418 moved by the epi cylic trains 396, 392, 394, 384 382, 380, 390, thus ensuring simultaneous and similar opera tion of the outboard propeller set. Initial relative setting of the two sets of blades is obtained by pushing the gear 480, 484 out o: engagement while settings are made. The blades are turned by a device described in Specification 545,520. The various units are initially balanced by attaching loading discs both internally and externally. A cowling in the parts 36, 40 is supported resiliently, from the propeller bosses. It encloses 82, 92, etc. passing de-icing fluid to each boss.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US585056XA | 1943-08-19 | 1943-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB585056A true GB585056A (en) | 1947-01-29 |
Family
ID=22017221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15694/44A Expired GB585056A (en) | 1943-08-19 | 1944-08-17 | Improvements in contra-rotating propellers with variable pitch blades |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB585056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2594886A1 (en) * | 1986-02-25 | 1987-08-28 | Rolls Royce | PROPULSIVE MODULE FOR AERONAUTICAL GAS TURBINE ENGINE |
| CN114379751A (en) * | 2021-12-31 | 2022-04-22 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
-
1944
- 1944-08-17 GB GB15694/44A patent/GB585056A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2594886A1 (en) * | 1986-02-25 | 1987-08-28 | Rolls Royce | PROPULSIVE MODULE FOR AERONAUTICAL GAS TURBINE ENGINE |
| CN114379751A (en) * | 2021-12-31 | 2022-04-22 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
| CN114379751B (en) * | 2021-12-31 | 2023-03-14 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
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