IT967762B - Pala per rotore di elicottero ad alta velocita - Google Patents

Pala per rotore di elicottero ad alta velocita

Info

Publication number
IT967762B
IT967762B IT29550/72A IT2955072A IT967762B IT 967762 B IT967762 B IT 967762B IT 29550/72 A IT29550/72 A IT 29550/72A IT 2955072 A IT2955072 A IT 2955072A IT 967762 B IT967762 B IT 967762B
Authority
IT
Italy
Prior art keywords
high speed
rotor blade
helicopter rotor
speed helicopter
blade
Prior art date
Application number
IT29550/72A
Other languages
English (en)
Original Assignee
United Aircraft 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 Aircraft Corp filed Critical United Aircraft Corp
Application granted granted Critical
Publication of IT967762B publication Critical patent/IT967762B/it

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)
IT29550/72A 1971-09-22 1972-09-22 Pala per rotore di elicottero ad alta velocita IT967762B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18277671A 1971-09-22 1971-09-22

Publications (1)

Publication Number Publication Date
IT967762B true IT967762B (it) 1974-03-11

Family

ID=22669975

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29550/72A IT967762B (it) 1971-09-22 1972-09-22 Pala per rotore di elicottero ad alta velocita

Country Status (7)

Country Link
US (1) US3721507A (it)
JP (1) JPS4840197A (it)
CA (1) CA953275A (it)
DE (1) DE2238247A1 (it)
FR (1) FR2153252B1 (it)
GB (1) GB1331025A (it)
IT (1) IT967762B (it)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126906B1 (it) * 1971-06-28 1976-08-09
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
GB1538055A (en) * 1975-05-19 1979-01-10 Westland Aircraft Ltd Helicopter rotor blades
US4028003A (en) * 1976-04-12 1977-06-07 United Technologies Corporation Torsionally compliant helicopter rotor blade with improved stability and performance characteristics
US4130377A (en) * 1977-07-13 1978-12-19 United Technologies Corporation Helicopter blade and rotor
US4248572A (en) * 1978-12-11 1981-02-03 United Technologies Corporation Helicopter blade
DE2909245C2 (de) * 1979-03-09 1983-01-27 Dornier Gmbh, 7990 Friedrichshafen Quertriebskörper, insbesondere Flugzeugtragflügel
US4314795A (en) * 1979-09-28 1982-02-09 The Boeing Company Advanced airfoils for helicopter rotor application
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
EP0037633B1 (en) 1980-03-28 1986-07-30 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
FR2617118B1 (fr) * 1987-06-29 1992-08-21 Aerospatiale Pale a extremite courbe pour voilure tournante d'aeronef
GB9022281D0 (en) * 1990-10-13 1991-02-20 Westland Helicopters Helicopter rotor blades
US5137427A (en) * 1990-12-20 1992-08-11 United Technologies Corporation Quiet tail rotor
FR2689852B1 (fr) * 1992-04-09 1994-06-17 Eurocopter France Pale pour voilure tournante d'aeronef, a extremite en fleche.
US5320494A (en) * 1992-12-22 1994-06-14 United Technologies Corporation Helicopter rotor blade having a replaceable anhedral tip
US5885059A (en) * 1996-12-23 1999-03-23 Sikorsky Aircraft Corporation Composite tip cap assembly for a helicopter main rotor blade
US6024325A (en) * 1997-01-09 2000-02-15 Cartercopters, Llc Rotor for rotary wing aircraft
FR2772715B1 (fr) * 1997-12-22 2000-02-11 Eurocopter France Pale pour aeronef a voilure tournante
US6976829B2 (en) * 2003-07-16 2005-12-20 Sikorsky Aircraft Corporation Rotor blade tip section
US7246998B2 (en) * 2004-11-18 2007-07-24 Sikorsky Aircraft Corporation Mission replaceable rotor blade tip section
US7854593B2 (en) * 2006-02-16 2010-12-21 Sikorsky Aircraft Corporation Airfoil for a helicopter rotor blade
AU2012202126B2 (en) * 2007-03-01 2014-07-31 Delta T, Llc Angled air foil extension for fan blade
ES2738011T3 (es) 2007-03-01 2020-01-17 Delta T Llc Extensión de plano aerodinámico en ángulo para paleta de ventilador
US7762785B2 (en) * 2007-12-10 2010-07-27 Sikorsky Aircraft Corporation Main rotor blade with integral tip section
US8262344B2 (en) * 2008-04-02 2012-09-11 Hamilton Sundstrand Corporation Thermal management system for a gas turbine engine
US8275585B2 (en) * 2008-04-26 2012-09-25 Sikorsky Aircraft Corporation Spherical elastomeric bearing with improved shim thickness
US8858183B2 (en) * 2010-02-26 2014-10-14 Sikorsky Aircraft Corporation Rotor blade for a rotary-wing aircraft
US8842000B2 (en) 2012-07-17 2014-09-23 4Front Engineered Solutions, Inc. Fire control systems
US10167075B2 (en) * 2013-06-25 2019-01-01 The Boeing Company Joint assembly and method of forming thereof
US9874214B2 (en) 2014-01-28 2018-01-23 4Front Engineered Solutions, Inc. Fan with fan blade mounting structure
US10351229B2 (en) 2014-05-15 2019-07-16 Sikorsky Aircraft Corporation Metallic dimpled doubler
US9726192B2 (en) 2015-03-31 2017-08-08 Assa Abloy Entrance Systems Ab Fan blades and associated blade tips
US11498671B2 (en) 2019-05-13 2022-11-15 Lockheed Martin Corporation Replacement tip section for a rotor blade and method of replacing a rotor blade tip section
CN113942643A (zh) * 2021-10-09 2022-01-18 中国直升机设计研究所 一种桨尖可更换的复合材料桨叶
CN116443245B (zh) * 2023-04-16 2023-12-08 西北工业大学 一种基于前行桨叶概念的高速特性显著提高的超临界旋翼翼型

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399731A (en) * 1967-07-18 1968-09-03 Algy F. Giles Jr. Rotor-blade

Also Published As

Publication number Publication date
FR2153252A1 (it) 1973-05-04
JPS4840197A (it) 1973-06-13
DE2238247A1 (de) 1973-03-29
GB1331025A (en) 1973-09-19
FR2153252B1 (it) 1976-08-13
CA953275A (en) 1974-08-20
US3721507A (en) 1973-03-20

Similar Documents

Publication Publication Date Title
IT967762B (it) Pala per rotore di elicottero ad alta velocita
IT1015991B (it) Compressore centrifugo supersonico
SE431306B (sv) Rakbladsenhet
AR201729A1 (es) Hoja de afeitar
IT967763B (it) Pala di elicottero
IT990912B (it) Rotore articolato per elicottero
IT964423B (it) Struttura di rotore per turbo macchine
IT1025614B (it) Rotore asincrono
FR2004556A1 (fr) Moyeu de rotor d'helicoptere
CA962254A (en) Helicopter rotor blade
CH540435A (de) Zentrifugalventilator
CA923043A (en) Rotor blade structure
CH542995A (de) Turbomaschinenrotor
IT967761B (it) Pala di flicottero e metodo per migliorare le prestazioni del rotore di un elicottero
BE815067A (fr) Rotor de centrifugeur
IT938779B (it) Cesoia rotante adatta in partico lare per laminato ad alta velocita
CH526223A (de) Radialventilator
CA958399A (en) Main rotor blade construction
IT974833B (it) Perfezionamento nelle disposizioni di rotore per elicotteri
SE383714B (sv) Rotoranordning t.ex. batpropeller
IT1014735B (it) Pala di elicottero
FI53683C (fi) Elektromagnetiskt driven haengande och/eller svaevande fordon
IL42948A0 (en) Helicopter rotor
AT329320B (de) Aerodynamische druckwellenmaschine
BR7502425A (pt) Embreagem centrifuga com rotor