IT8522377A0 - Elica a ventola tipo prop-fan constabilita' migliorata. - Google Patents
Elica a ventola tipo prop-fan constabilita' migliorata.Info
- Publication number
- IT8522377A0 IT8522377A0 IT8522377A IT2237785A IT8522377A0 IT 8522377 A0 IT8522377 A0 IT 8522377A0 IT 8522377 A IT8522377 A IT 8522377A IT 2237785 A IT2237785 A IT 2237785A IT 8522377 A0 IT8522377 A0 IT 8522377A0
- Authority
- IT
- Italy
- Prior art keywords
- constability
- prop
- improved
- fan type
- type propeller
- Prior art date
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
- B64C11/16—Blades
- B64C11/18—Aerodynamic features
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Percussion Or Vibration Massage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69911985A | 1985-02-07 | 1985-02-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8522377A0 true IT8522377A0 (it) | 1985-10-07 |
IT1185996B IT1185996B (it) | 1987-11-18 |
Family
ID=24808020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22377/85A IT1185996B (it) | 1985-02-07 | 1985-10-07 | Elica a ventola tipo prop-fan con stabilita' migliorata |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS61181798A (it) |
BR (1) | BR8504907A (it) |
CA (1) | CA1270802A (it) |
DE (1) | DE3535399A1 (it) |
FR (1) | FR2576872B1 (it) |
GB (1) | GB2170868B (it) |
IT (1) | IT1185996B (it) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2605588B1 (fr) * | 1986-10-24 | 1989-04-28 | Onera (Off Nat Aerospatiale) | Perfectionnements apportes aux helices aeriennes, notamment pour propulseurs d'aeronef |
DE3738785A1 (de) * | 1986-11-19 | 1988-05-26 | Gen Electric | Gegenlaeufig rotierende flugzeug-antriebsschaufeln |
USRE34207E (en) * | 1986-11-19 | 1993-03-30 | General Electric Company | Counterrotating aircraft propulsor blades |
US5165856A (en) * | 1988-06-02 | 1992-11-24 | General Electric Company | Fan blade mount |
US5102302A (en) * | 1988-06-02 | 1992-04-07 | General Electric Company | Fan blade mount |
GB2220712B (en) * | 1988-07-13 | 1992-12-09 | Rolls Royce Plc | Open rotor blading |
US4971641A (en) * | 1988-11-14 | 1990-11-20 | General Electric Company | Method of making counterrotating aircraft propeller blades |
US6071077A (en) * | 1996-04-09 | 2000-06-06 | Rolls-Royce Plc | Swept fan blade |
GB2469516A (en) * | 2009-04-17 | 2010-10-20 | Insensys Ltd | Rotor blade with optical strain sensors covered by erosion shield |
US20130340406A1 (en) * | 2012-01-31 | 2013-12-26 | Edward J. Gallagher | Fan stagger angle for geared gas turbine engine |
WO2015178974A2 (en) | 2014-02-19 | 2015-11-26 | United Technologies Corporation | Gas turbine engine airfoil |
EP3108117B2 (en) | 2014-02-19 | 2023-10-11 | Raytheon Technologies Corporation | Gas turbine engine airfoil |
US10519971B2 (en) | 2014-02-19 | 2019-12-31 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015126449A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
US10570916B2 (en) | 2014-02-19 | 2020-02-25 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015175043A2 (en) | 2014-02-19 | 2015-11-19 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015126453A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
EP3108114B1 (en) | 2014-02-19 | 2021-12-08 | Raytheon Technologies Corporation | Gas turbine engine airfoil |
WO2015126450A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
US10352331B2 (en) | 2014-02-19 | 2019-07-16 | United Technologies Corporation | Gas turbine engine airfoil |
US9163517B2 (en) | 2014-02-19 | 2015-10-20 | United Technologies Corporation | Gas turbine engine airfoil |
EP3114321B1 (en) | 2014-02-19 | 2019-04-17 | United Technologies Corporation | Gas turbine engine airfoil |
EP3108104B1 (en) | 2014-02-19 | 2019-06-12 | United Technologies Corporation | Gas turbine engine airfoil |
US10605259B2 (en) | 2014-02-19 | 2020-03-31 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015126452A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015127032A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015175058A2 (en) | 2014-02-19 | 2015-11-19 | United Technologies Corporation | Gas turbine engine airfoil |
EP3108107B1 (en) | 2014-02-19 | 2023-10-11 | Raytheon Technologies Corporation | Turbofan engine with geared architecture and lpc airfoils |
WO2015175073A2 (en) | 2014-02-19 | 2015-11-19 | United Technologies Corporation | Gas turbine engine airfoil |
US9567858B2 (en) | 2014-02-19 | 2017-02-14 | United Technologies Corporation | Gas turbine engine airfoil |
US10465702B2 (en) | 2014-02-19 | 2019-11-05 | United Technologies Corporation | Gas turbine engine airfoil |
WO2015126774A1 (en) | 2014-02-19 | 2015-08-27 | United Technologies Corporation | Gas turbine engine airfoil |
FR3045564B1 (fr) | 2015-12-21 | 2018-08-17 | Airbus Helicopters | Pale de rotor d'aeronef a geometrie adaptee pour l'amelioration acoustique lors de vols d'approche et l'amelioration des performances en vols stationnaire et d'avancement |
FR3045565B1 (fr) | 2015-12-21 | 2018-07-27 | Airbus Helicopters | Pale de rotor d'aeronef a geometrie adaptee pour l'ameloration acoustique lors d'un vol d'approche et l'amelioration des performances en vol d'avancement |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3989406A (en) * | 1974-11-26 | 1976-11-02 | Bolt Beranek And Newman, Inc. | Method of and apparatus for preventing leading edge shocks and shock-related noise in transonic and supersonic rotor blades and the like |
US4171183A (en) * | 1976-09-24 | 1979-10-16 | United Technologies Corporation | Multi-bladed, high speed prop-fan |
US4358246A (en) * | 1979-07-16 | 1982-11-09 | United Technologies Corporation | Noise reduction means for prop-fan and the construction thereof |
-
1985
- 1985-08-16 CA CA000488883A patent/CA1270802A/en not_active Expired - Fee Related
- 1985-10-02 GB GB08524280A patent/GB2170868B/en not_active Expired
- 1985-10-03 DE DE19853535399 patent/DE3535399A1/de not_active Withdrawn
- 1985-10-04 BR BR8504907A patent/BR8504907A/pt not_active IP Right Cessation
- 1985-10-07 FR FR8514818A patent/FR2576872B1/fr not_active Expired
- 1985-10-07 JP JP60223447A patent/JPS61181798A/ja active Pending
- 1985-10-07 IT IT22377/85A patent/IT1185996B/it active
Also Published As
Publication number | Publication date |
---|---|
DE3535399A1 (de) | 1986-08-07 |
CA1270802A (en) | 1990-06-26 |
GB8524280D0 (en) | 1985-11-06 |
IT1185996B (it) | 1987-11-18 |
FR2576872A1 (fr) | 1986-08-08 |
JPS61181798A (ja) | 1986-08-14 |
GB2170868A (en) | 1986-08-13 |
FR2576872B1 (fr) | 1987-07-24 |
GB2170868B (en) | 1988-07-13 |
BR8504907A (pt) | 1986-12-16 |
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