IT1185996B - Elica a ventola tipo prop-fan con stabilita' migliorata - Google Patents

Elica a ventola tipo prop-fan con stabilita' migliorata

Info

Publication number
IT1185996B
IT1185996B IT22377/85A IT2237785A IT1185996B IT 1185996 B IT1185996 B IT 1185996B IT 22377/85 A IT22377/85 A IT 22377/85A IT 2237785 A IT2237785 A IT 2237785A IT 1185996 B IT1185996 B IT 1185996B
Authority
IT
Italy
Prior art keywords
fan
prop
improved stability
propeller
type fan
Prior art date
Application number
IT22377/85A
Other languages
English (en)
Other versions
IT8522377A0 (it
Inventor
Edward Allen Rothman
John Alfred Violette
Original Assignee
United Technologies Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of IT8522377A0 publication Critical patent/IT8522377A0/it
Application granted granted Critical
Publication of IT1185996B publication Critical patent/IT1185996B/it

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)
  • Percussion Or Vibration Massage (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
IT22377/85A 1985-02-07 1985-10-07 Elica a ventola tipo prop-fan con stabilita' migliorata IT1185996B (it)

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 IT8522377A0 (it) 1985-10-07
IT1185996B true 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 (35)

* Cited by examiner, † Cited by third party
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
US5102302A (en) * 1988-06-02 1992-04-07 General Electric Company Fan blade mount
US5165856A (en) * 1988-06-02 1992-11-24 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
RU2256585C1 (ru) * 2004-01-20 2005-07-20 Общество С Ограниченной Ответственностью "Мидера-К" Воздушный винт
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
EP3108123B1 (en) 2014-02-19 2023-10-04 Raytheon Technologies Corporation Turbofan engine with geared architecture and lpc airfoils
EP3985226B1 (en) 2014-02-19 2024-12-25 RTX Corporation Gas turbine engine airfoil
WO2015175073A2 (en) 2014-02-19 2015-11-19 United Technologies Corporation Gas turbine engine airfoil
EP3108103B1 (en) 2014-02-19 2023-09-27 Raytheon Technologies Corporation Fan blade for a gas turbine engine
EP3108120B1 (en) 2014-02-19 2021-03-31 Raytheon Technologies Corporation Gas turbine engine having a geared architecture and a specific fixed airfoil structure
WO2015175044A2 (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
US10584715B2 (en) 2014-02-19 2020-03-10 United Technologies Corporation Gas turbine engine airfoil
WO2015175052A2 (en) 2014-02-19 2015-11-19 United Technologies Corporation Gas turbine engine airfoil
US10465702B2 (en) 2014-02-19 2019-11-05 United Technologies Corporation Gas turbine engine airfoil
US10570916B2 (en) 2014-02-19 2020-02-25 United Technologies Corporation Gas turbine engine airfoil
US10570915B2 (en) 2014-02-19 2020-02-25 United Technologies Corporation Gas turbine engine airfoil
WO2015126454A1 (en) 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
US9140127B2 (en) 2014-02-19 2015-09-22 United Technologies Corporation Gas turbine engine airfoil
EP3108105B1 (en) 2014-02-19 2021-05-12 Raytheon Technologies Corporation Gas turbine engine airfoil
US10495106B2 (en) 2014-02-19 2019-12-03 United Technologies Corporation Gas turbine engine airfoil
EP3108106B1 (en) 2014-02-19 2022-05-04 Raytheon Technologies Corporation Gas turbine engine airfoil
EP3108101B1 (en) * 2014-02-19 2022-04-20 Raytheon Technologies Corporation Gas turbine engine airfoil
WO2015175043A2 (en) 2014-02-19 2015-11-19 United Technologies Corporation Gas turbine engine airfoil
EP3575551B1 (en) 2014-02-19 2021-10-27 Raytheon Technologies Corporation Gas turbine engine airfoil
WO2015126941A1 (en) 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
EP3108100B1 (en) 2014-02-19 2021-04-14 Raytheon Technologies Corporation Gas turbine engine fan blade
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
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB2170868A (en) 1986-08-13
IT8522377A0 (it) 1985-10-07
JPS61181798A (ja) 1986-08-14
DE3535399A1 (de) 1986-08-07
BR8504907A (pt) 1986-12-16
FR2576872A1 (fr) 1986-08-08
FR2576872B1 (fr) 1987-07-24
GB2170868B (en) 1988-07-13
CA1270802A (en) 1990-06-26
GB8524280D0 (en) 1985-11-06

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