GB508501A - Improvements in and relating to the mounting and driving of co-axial twin propellersfor aircraft - Google Patents
Improvements in and relating to the mounting and driving of co-axial twin propellersfor aircraftInfo
- Publication number
- GB508501A GB508501A GB36259/37A GB3625937A GB508501A GB 508501 A GB508501 A GB 508501A GB 36259/37 A GB36259/37 A GB 36259/37A GB 3625937 A GB3625937 A GB 3625937A GB 508501 A GB508501 A GB 508501A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- engine
- pinion
- sleeve
- airscrews
- 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
- 238000013016 damping Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
- B64D35/04—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
508,501. Propelling aircraft. BARBAROU, M. J. B. Dec. 31, 1937, No. 36259. Convention date, Jan. 13. [Class 4] Means for propelling aircraft comprise two airscrews mounted on coaxial shafts disposed unilaterally of and geared to one end of a main shaft connected to the aero-engine and supported within a tubular casing secured at its ends to a reduction gear housing containing the coaxial shafts and to the engine casing ; a sleeve surrounds the main shaft and is connected to the shaft by collars and a frictionclutch device. As shown, the airscrews 22, 23 are driven from the aero-engine 1 which is disposed to the rear of the cockpit in order to increase the pilot's field of vision and permit firing a gun through the airscrew shaft. The engine drives a shaft 8 through a pinion 7. The sleeve 10 surrounds and is fixed to the shaft 8. Conical linings 12, 13 are secured respectively to the sleeve and pinion 7 which have differing moments of inertia. A split ring 11 is operated by centrifugal force to co-operate with the linings and damp torsionaloscillations in the shaft 8. The shaft 8 drives, through a pinion 9, a shaft 16 which through pinions 17, 18, 19 and 20, 21 and a further pinion, drives the airscrews in opposite directions through concentric hollow shafts 32, 31. The shaft 32 rotates in a bearing 24 and is centred on rollers 26 and the shaft 31 rotates in a bearing 28a. A gear-wheel pump 34, 35 draws oil through the conduit 36 from the interior of the housing 5 and delivers it through conduits 38, 39 to a radiator 40 whence it passes through a main 41 to a reservoir. A second gear-wheel pump 42, 43 draws oil from the reservoir through a union 44 and delivers it through conduits 45, 46 to the airscrew shafts and also through a tube 47 to the bearings 28, 29 of the shaft 16. Packings 50 and plug 52 prevent leakage. Oil accumulating in the casing 3 can drain through conduit 53 into the interior 37 or pass rearwardly to the engine casing 1. The means for damping torsional oscillations may comprise conical rubber washers compressed between the sleeve and shaft..
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR508501X | 1937-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB508501A true GB508501A (en) | 1939-06-30 |
Family
ID=8910413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36259/37A Expired GB508501A (en) | 1937-01-13 | 1937-12-31 | Improvements in and relating to the mounting and driving of co-axial twin propellersfor aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB508501A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498767A (en) * | 1944-06-19 | 1950-02-28 | Chrysler Corp | Gearing for driving coaxial shafts |
| US11746727B2 (en) | 2021-11-23 | 2023-09-05 | Rolls-Royce Plc | Aircraft propulsion system configured to substantially cancel component gyroscopic forces |
-
1937
- 1937-12-31 GB GB36259/37A patent/GB508501A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498767A (en) * | 1944-06-19 | 1950-02-28 | Chrysler Corp | Gearing for driving coaxial shafts |
| US11746727B2 (en) | 2021-11-23 | 2023-09-05 | Rolls-Royce Plc | Aircraft propulsion system configured to substantially cancel component gyroscopic forces |
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