FR2112447A1 - - Google Patents

Info

Publication number
FR2112447A1
FR2112447A1 FR7139398A FR7139398A FR2112447A1 FR 2112447 A1 FR2112447 A1 FR 2112447A1 FR 7139398 A FR7139398 A FR 7139398A FR 7139398 A FR7139398 A FR 7139398A FR 2112447 A1 FR2112447 A1 FR 2112447A1
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.)
Granted
Application number
FR7139398A
Other languages
French (fr)
Other versions
FR2112447B1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dowty Rotol Ltd
Original Assignee
Dowty Rotol Ltd
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 Dowty Rotol Ltd filed Critical Dowty Rotol Ltd
Publication of FR2112447A1 publication Critical patent/FR2112447A1/fr
Application granted granted Critical
Publication of FR2112447B1 publication Critical patent/FR2112447B1/fr
Expired legal-status Critical Current

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
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B64C11/06—Blade mountings for variable-pitch blades
    • 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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/32—Blade pitch-changing mechanisms mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7139398A 1970-11-04 1971-11-03 Expired FR2112447B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5255770A GB1363426A (en) 1970-11-04 1970-11-04 Bladed rotors

Publications (2)

Publication Number Publication Date
FR2112447A1 true FR2112447A1 (enrdf_load_stackoverflow) 1972-06-16
FR2112447B1 FR2112447B1 (enrdf_load_stackoverflow) 1974-09-27

Family

ID=10464371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7139398A Expired FR2112447B1 (enrdf_load_stackoverflow) 1970-11-04 1971-11-03

Country Status (3)

Country Link
US (1) US3792937A (enrdf_load_stackoverflow)
FR (1) FR2112447B1 (enrdf_load_stackoverflow)
GB (1) GB1363426A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957986A1 (fr) * 2010-03-29 2011-09-30 Snecma Dispositif de mise en drapeau des pales de souffante d'un turbopropulseur
FR3157353A1 (fr) * 2023-12-26 2025-06-27 Safran Helicopter Engines Ensemble propulseur hybride electrique pour aeronef

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037986A (en) * 1975-09-04 1977-07-26 Dowty Rotol Limited Bladed rotors having control means for effecting blade pitch adjustment
US4221541A (en) * 1977-02-28 1980-09-09 Axial International Aktiengesellschaft Fan comprising a blade pitch control mechanism
US4428716A (en) 1977-06-10 1984-01-31 Maloof Ralph P Variable pitch propeller hub with fluid motor actuating means
US4362467A (en) * 1979-02-08 1982-12-07 Elliott Morris C Variable pitch propeller device
US4365937A (en) * 1979-11-26 1982-12-28 Hiebert Harold L Adjustable pitch propeller drive
JPS57140291A (en) * 1981-02-23 1982-08-30 Kawasaki Heavy Ind Ltd Variable pitch impeller
GB2140096B (en) * 1983-05-13 1987-04-29 Wilfred Thomas Bellew Marine propeller pitch control system
GB2140508B (en) * 1983-05-25 1987-01-07 Howden James & Co Ltd Wind turbines
US5159620A (en) * 1990-09-28 1992-10-27 Thomas Bordelon Variable pitch propeller apparatus
DE59911215D1 (de) * 1998-03-26 2005-01-13 Haegele Gmbh Lüfterrad, insbesondere im Kühlsystem von Brennkraftmaschinen einsetzbares Lüfterrad
US6439850B1 (en) 1998-07-15 2002-08-27 Flexxaire Manufacturing Inc. Variable pitch fan
DE19903550C1 (de) * 1999-01-29 2000-05-25 Muehlbauer Luftfahrttechn Gmbh Blattwurzel für Propeller- und Rotorblätter
US7214035B2 (en) * 2005-02-18 2007-05-08 Mario Bussières Rotor for a turbomachine
WO2008153751A2 (en) * 2007-05-25 2008-12-18 Hill Daryl G Conical washer system for propeller stabilization
SE533034C2 (sv) * 2008-09-17 2010-06-15 Berg Propulsion Technology Propeller
US9863250B2 (en) * 2010-02-24 2018-01-09 United Technologies Corporation Fastener aperture having an elongated geometry
CN117307330A (zh) * 2022-06-17 2023-12-29 通用电气公司 带有弹簧阻尼系统的旋转翼型件

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL283406A (enrdf_load_stackoverflow) *
DE666385C (de) * 1936-10-14 1938-10-18 Karlstad Mekaniska Ab Nabe mit in ihr gelagerten, waehrend des Betriebes verdrehbaren Schaufeln fuer Wasserturbinen, Pumpen oder Schiffsschrauben
US2255920A (en) * 1937-02-01 1941-09-16 Englesson John Elov Ship propeller having rotatable blades
US2612229A (en) * 1945-03-06 1952-09-30 Tornes Ferdinand Variable pitch propeller blade root construction
US3103978A (en) * 1960-09-24 1963-09-17 Slack & Parr Marine Ltd Variable pitch marine screw propellers
US3393748A (en) * 1966-07-22 1968-07-23 United Aircraft Corp Propeller with spring actuated variable pitch
SE303242B (enrdf_load_stackoverflow) * 1967-01-09 1968-08-19 Saab Scania Ab
NO120011B (enrdf_load_stackoverflow) * 1967-03-22 1970-08-10 Karlstad Mekaniska Ab
US3393749A (en) * 1967-08-25 1968-07-23 Feroy Arne Controllable pitch propellers
GB1267371A (en) * 1968-07-08 1972-03-15 Dowty Rotol Ltd Variable-pitch bladed rotors
US3645644A (en) * 1970-01-22 1972-02-29 Hydro Drive Corp Interlocking variable-pitch propeller assembly
US3676016A (en) * 1970-09-21 1972-07-11 Arne Feroy Controllable pitch propellers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957986A1 (fr) * 2010-03-29 2011-09-30 Snecma Dispositif de mise en drapeau des pales de souffante d'un turbopropulseur
US8696303B2 (en) 2010-03-29 2014-04-15 Snecma Feathering device for the fan blades of a turboprop engine
FR3157353A1 (fr) * 2023-12-26 2025-06-27 Safran Helicopter Engines Ensemble propulseur hybride electrique pour aeronef

Also Published As

Publication number Publication date
FR2112447B1 (enrdf_load_stackoverflow) 1974-09-27
US3792937A (en) 1974-02-19
GB1363426A (en) 1974-08-14

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Legal Events

Date Code Title Description
ST Notification of lapse