IT1115931B - Helicopter rotor with axially rotatable blades - has single piece titanium hub casting enclosing blade mountings - Google Patents
Helicopter rotor with axially rotatable blades - has single piece titanium hub casting enclosing blade mountingsInfo
- Publication number
- IT1115931B IT1115931B IT4832477A IT4832477A IT1115931B IT 1115931 B IT1115931 B IT 1115931B IT 4832477 A IT4832477 A IT 4832477A IT 4832477 A IT4832477 A IT 4832477A IT 1115931 B IT1115931 B IT 1115931B
- Authority
- IT
- Italy
- Prior art keywords
- hub
- blades
- stubs
- axially rotatable
- single piece
- Prior art date
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The hub is for helicopter rotors, esp. with axially rotatable blades. A one-piece hollow Titanium casting comprises an inner portion (14) in the form of a rectangular section ring, with cylindrical section radial stubs for the blades. There are radial stiffening webs between the stubs and the inner portion is splined onto the rotor shaft (49). The whole assembly, including the top part of the rotor shaft, is made gastight and can be pressurised via a charging valve in the hub. The blades (12) are carried in an elastomeric mounting (20) conventionally arranged to permit all the movements necessary in flight, fixed to the hub stubs by circular flanges (25). A coupling sleeve (33) at the inner end of the blade spindle is connected to a damper unit running peripherally to a mounting point on the hub outer wall.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB903076A GB1514347A (en) | 1976-03-05 | 1976-03-05 | Helicopter rotors |
GB903077 | 1977-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1115931B true IT1115931B (en) | 1986-02-10 |
Family
ID=26242595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4832477A IT1115931B (en) | 1976-03-05 | 1977-03-04 | Helicopter rotor with axially rotatable blades - has single piece titanium hub casting enclosing blade mountings |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1115931B (en) |
-
1977
- 1977-03-04 IT IT4832477A patent/IT1115931B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1427983A (en) | Compound bearing for connecting a helicopter blade to helicopter rotor | |
GB1534404A (en) | Helicopter rotors | |
BR8503286A (en) | AXIAL IMPELLER SET | |
GB2016092B (en) | Blade-retainer for the rotor of a turbo machine particularly an axial flow turbine | |
GB913930A (en) | Blade for axial-flow fans producing an acceleration in a meridian direction | |
GB1034867A (en) | High speed motor for example for a dental handpiece | |
GB1386335A (en) | Rotary fluid moving propellor | |
ES436430A1 (en) | Axial flow fans | |
ATE192991T1 (en) | DRIVE SYSTEM OF A VARIABLE DIAMETER ROTOR | |
IT1115931B (en) | Helicopter rotor with axially rotatable blades - has single piece titanium hub casting enclosing blade mountings | |
GB1535391A (en) | Helicopter rotors | |
GB1514347A (en) | Helicopter rotors | |
FR2422047A2 (en) | Wind driven power generator - has turbine arranged for axial flow with impeller and stator blades which can pivot to form inlet damper | |
US3224666A (en) | Rotary fan arrangement | |
GB975892A (en) | Turbine rotors | |
EP0259061A3 (en) | Axial flow fan and fan blade therefor | |
ES469687A1 (en) | Axial fan | |
GB895510A (en) | Air driven turbines | |
GB1458874A (en) | Semi-rigid rotors for 'otary wing aircraft | |
JPS5795147A (en) | Turbo-generator | |
JPS54125409A (en) | Outer rotor motor | |
GB867600A (en) | Improvements in the rotor and stator construction of gas turbine engines | |
SE7706728L (en) | BAT PROPELLER Hub | |
GB1507503A (en) | Means for producing lift | |
GB778300A (en) | Improvements in or relating to axial-flow compressors and turbines |