IN156598B - - Google Patents
Info
- Publication number
- IN156598B IN156598B IN593/CAL/82A IN593CA1982A IN156598B IN 156598 B IN156598 B IN 156598B IN 593CA1982 A IN593CA1982 A IN 593CA1982A IN 156598 B IN156598 B IN 156598B
- Authority
- IN
- India
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)
- Wind Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8111232A FR2507149A1 (fr) | 1981-06-05 | 1981-06-05 | Extremite de pale pour voilure tournante d'aeronef et voilure tournante pourvue de telles extremites de pale |
Publications (1)
Publication Number | Publication Date |
---|---|
IN156598B true IN156598B (ru) | 1985-09-14 |
Family
ID=9259263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN593/CAL/82A IN156598B (ru) | 1981-06-05 | 1982-05-24 |
Country Status (7)
Country | Link |
---|---|
US (1) | US4451206A (ru) |
EP (1) | EP0067097B1 (ru) |
JP (1) | JPS57209499A (ru) |
BR (1) | BR8203434A (ru) |
DE (1) | DE3261125D1 (ru) |
FR (1) | FR2507149A1 (ru) |
IN (1) | IN156598B (ru) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2617118B1 (fr) * | 1987-06-29 | 1992-08-21 | Aerospatiale | Pale a extremite courbe pour voilure tournante d'aeronef |
GB8815955D0 (en) * | 1988-07-05 | 1988-11-16 | Westland Helicopters | Helicopter rotor blades |
US5161953A (en) * | 1991-01-28 | 1992-11-10 | Burtis Wilson A | Aircraft propeller and blade element |
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 |
WO1998056654A1 (en) * | 1997-06-13 | 1998-12-17 | The Boeing Company | Blunt-leading-edge raked wingtips |
JP3189251B2 (ja) * | 1999-03-12 | 2001-07-16 | 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 |
FR2793766B1 (fr) * | 1999-05-21 | 2001-07-13 | Eurocopter France | Pale pour voilure tournante d'aeronef |
US6301868B1 (en) | 1999-08-26 | 2001-10-16 | James D. Siplinger | Vortex reducing mower blade |
US6497385B1 (en) | 2000-11-08 | 2002-12-24 | Continuum Dynamics, Inc. | Rotor blade with optimized twist distribution |
US7344360B2 (en) | 2004-09-29 | 2008-03-18 | General Electric Company | Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same |
US7513750B2 (en) * | 2006-03-08 | 2009-04-07 | Sikorsky Aircraft Corporation | Rotor blade tip planform |
ATE490914T1 (de) * | 2008-05-22 | 2010-12-15 | Agusta Spa | Drehmomentausgleichs-heckrotorblatt für hubschrauber |
US7854595B2 (en) * | 2008-07-30 | 2010-12-21 | General Electric Company | Wind turbine blade tip shapes |
AT507091B1 (de) * | 2008-09-22 | 2010-02-15 | Walter Enthammer | Strömungsmaschine |
US10899440B2 (en) | 2017-03-09 | 2021-01-26 | Sikorsky Aircraft Corporation | Rotor blade tip design for improved hover and cruise performance |
RU2734154C1 (ru) * | 2019-12-24 | 2020-10-13 | Общество с ограниченной ответственностью "ОКБ АВИАРЕШЕНИЯ" (ООО "ОКБ АВИАРЕШЕНИЯ") | Лопасть винта летательного аппарата вертолетного типа (варианты) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US3721507A (en) * | 1971-09-22 | 1973-03-20 | United Aircraft Corp | Blade for high speed helicopter |
CA1016524A (en) * | 1974-01-03 | 1977-08-30 | Textron Inc. | Helicopter rotor blade |
GB1538055A (en) * | 1975-05-19 | 1979-01-10 | Westland Aircraft Ltd | Helicopter rotor blades |
US3999888A (en) * | 1975-06-25 | 1976-12-28 | United Technologies Corporation | Composite tip weight attachment |
US4130377A (en) * | 1977-07-13 | 1978-12-19 | United Technologies Corporation | Helicopter blade and rotor |
US4142837A (en) * | 1977-11-11 | 1979-03-06 | United Technologies Corporation | Helicopter blade |
US4248572A (en) * | 1978-12-11 | 1981-02-03 | United Technologies Corporation | Helicopter blade |
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 |
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 |
-
1981
- 1981-06-05 FR FR8111232A patent/FR2507149A1/fr active Granted
-
1982
- 1982-05-19 DE DE8282400927T patent/DE3261125D1/de not_active Expired
- 1982-05-19 EP EP82400927A patent/EP0067097B1/fr not_active Expired
- 1982-05-24 IN IN593/CAL/82A patent/IN156598B/en unknown
- 1982-05-26 US US06/381,934 patent/US4451206A/en not_active Expired - Lifetime
- 1982-06-03 JP JP57094144A patent/JPS57209499A/ja active Granted
- 1982-06-04 BR BR8203434A patent/BR8203434A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3261125D1 (en) | 1984-12-06 |
US4451206A (en) | 1984-05-29 |
JPS57209499A (en) | 1982-12-22 |
FR2507149A1 (fr) | 1982-12-10 |
BR8203434A (pt) | 1983-06-07 |
EP0067097A1 (fr) | 1982-12-15 |
FR2507149B1 (ru) | 1983-10-21 |
EP0067097B1 (fr) | 1984-10-31 |
JPH0366198B2 (ru) | 1991-10-16 |