FR2311713B1 - - Google Patents
Info
- Publication number
- FR2311713B1 FR2311713B1 FR7614899A FR7614899A FR2311713B1 FR 2311713 B1 FR2311713 B1 FR 2311713B1 FR 7614899 A FR7614899 A FR 7614899A FR 7614899 A FR7614899 A FR 7614899A FR 2311713 B1 FR2311713 B1 FR 2311713B1
- Authority
- FR
- France
- 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
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/463—Blade tips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21352/75A GB1538055A (en) | 1975-05-19 | 1975-05-19 | Helicopter rotor blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2311713A1 FR2311713A1 (fr) | 1976-12-17 |
| FR2311713B1 true FR2311713B1 (fr) | 1982-09-17 |
Family
ID=10161450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7614899A Granted FR2311713A1 (fr) | 1975-05-19 | 1976-05-18 | Pales pour rotor d'helicoptere |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4077741A (fr) |
| DE (1) | DE2621982A1 (fr) |
| FR (1) | FR2311713A1 (fr) |
| GB (1) | GB1538055A (fr) |
| IT (1) | IT1074464B (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248572A (en) * | 1978-12-11 | 1981-02-03 | United Technologies Corporation | Helicopter blade |
| US4334828A (en) * | 1980-01-21 | 1982-06-15 | United Technologies Corporation | Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency |
| US4324530A (en) * | 1980-01-21 | 1982-04-13 | United Technologies Corp. | Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency |
| DE3175016D1 (en) * | 1980-03-28 | 1986-09-04 | Westland Plc | Helicopter rotor blade |
| FR2507149A1 (fr) * | 1981-06-05 | 1982-12-10 | Onera (Off Nat Aerospatiale) | Extremite de pale pour voilure tournante d'aeronef et voilure tournante pourvue de telles extremites de pale |
| US4722608A (en) * | 1985-07-30 | 1988-02-02 | General Signal Corp. | Mixing apparatus |
| GB8815955D0 (en) * | 1988-07-05 | 1988-11-16 | Westland Helicopters | Helicopter rotor blades |
| FR2639902A1 (fr) * | 1988-12-06 | 1990-06-08 | Ferry Olivier | Helice de propulsion ou de sustentation pour aeronef |
| JP2525836Y2 (ja) * | 1989-03-29 | 1997-02-12 | 川崎重工業株式会社 | 回転翼用ブレードの先端部形状 |
| GB9022281D0 (en) * | 1990-10-13 | 1991-02-20 | Westland Helicopters | Helicopter rotor blades |
| GB9022271D0 (en) * | 1990-10-13 | 1991-02-20 | Westland Helicopters | Helicopter rotor blades |
| GB9112835D0 (en) * | 1991-06-14 | 1992-05-27 | Westland Helicopters | Helicopter rotor blades |
| DE4206066A1 (de) * | 1992-02-27 | 1993-09-02 | Fritz Karl Hausser | Boot-schrauben, flugzeug-propellern und hubschrauber-rotor-blaettern zur verringerung des wirbels und widerstandes von wasser und luft |
| DE4400806A1 (de) * | 1994-01-13 | 1995-07-20 | Bernd Stolz | Propeller |
| GB9600123D0 (en) | 1996-01-04 | 1996-03-06 | Westland Helicopters | Aerofoil |
| GB2312712A (en) * | 1996-04-30 | 1997-11-05 | Gkn Westland Helicopters Ltd | Propeller/rotor blade |
| FR2755941B1 (fr) | 1996-11-19 | 1999-01-15 | Eurocopter France | Pale a extremite en fleche pour voilure tournante d'aeronef |
| JP3170470B2 (ja) | 1997-03-24 | 2001-05-28 | 株式会社コミュータヘリコプタ先進技術研究所 | 回転翼機のロータブレード |
| JP3916723B2 (ja) * | 1997-05-15 | 2007-05-23 | 富士重工業株式会社 | 回転翼航空機の回転翼羽根 |
| US6986642B2 (en) * | 2002-08-30 | 2006-01-17 | Cartercopters, L.L.C. | Extreme mu rotor |
| AT507091B1 (de) * | 2008-09-22 | 2010-02-15 | Walter Enthammer | Strömungsmaschine |
| AT519647B1 (de) * | 2017-05-09 | 2018-09-15 | Villinger Markus | Rotor, insbesondere für Fluggeräte und Windkraftanlagen |
| US20210253232A1 (en) * | 2018-06-15 | 2021-08-19 | The Texas A&M University System | Hover-capable aircraft |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1692081A (en) * | 1925-11-24 | 1928-11-20 | Cierva Juan De La | Aircraft with rotative wings |
| US2152861A (en) * | 1934-05-16 | 1939-04-04 | Autogiro Co Of America | Blade construction for aircraft sustaining rotors |
| US3066742A (en) * | 1957-01-11 | 1962-12-04 | Georgia Tech Res Inst | Rotor blade |
| US3399731A (en) * | 1967-07-18 | 1968-09-03 | Algy F. Giles Jr. | Rotor-blade |
| US3467197A (en) * | 1968-05-07 | 1969-09-16 | Bell Aerospace Corp | Rotor blade |
| GB1380252A (en) * | 1971-01-21 | 1975-01-08 | Secr Defence | Helicopter rotor blades |
| US3822105A (en) * | 1971-09-22 | 1974-07-02 | United Aircraft Corp | Helicopter blade |
| GB1391940A (en) * | 1971-09-22 | 1975-04-23 | United Aircraft Corp | Helicopter rotor blades |
| US3721507A (en) * | 1971-09-22 | 1973-03-20 | United Aircraft Corp | Blade for high speed helicopter |
| CA988906A (en) * | 1973-06-04 | 1976-05-11 | United Aircraft Corporation | Helicopter blade |
| US4012172A (en) * | 1975-09-10 | 1977-03-15 | Avco Corporation | Low noise blades for axial flow compressors |
-
1975
- 1975-05-19 GB GB21352/75A patent/GB1538055A/en not_active Expired
-
1976
- 1976-05-17 IT IT7649520A patent/IT1074464B/it active
- 1976-05-18 DE DE19762621982 patent/DE2621982A1/de active Granted
- 1976-05-18 US US05/687,640 patent/US4077741A/en not_active Expired - Lifetime
- 1976-05-18 FR FR7614899A patent/FR2311713A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4077741A (en) | 1978-03-07 |
| DE2621982C2 (fr) | 1987-08-13 |
| IT1074464B (it) | 1985-04-20 |
| DE2621982A1 (de) | 1976-12-09 |
| GB1538055A (en) | 1979-01-10 |
| FR2311713A1 (fr) | 1976-12-17 |