[go: up one dir, main page]

FR3072939B1 - VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT - Google Patents

VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT Download PDF

Info

Publication number
FR3072939B1
FR3072939B1 FR1771153A FR1771153A FR3072939B1 FR 3072939 B1 FR3072939 B1 FR 3072939B1 FR 1771153 A FR1771153 A FR 1771153A FR 1771153 A FR1771153 A FR 1771153A FR 3072939 B1 FR3072939 B1 FR 3072939B1
Authority
FR
France
Prior art keywords
pitch
hub
rotation
axis
control plate
Prior art date
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.)
Active
Application number
FR1771153A
Other languages
French (fr)
Other versions
FR3072939A1 (en
Inventor
Sylvain Berthalon
Olivier Barais
Philippe Cabrit
Jean Romain Bihel
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.)
Airbus Helicopters SAS
Original Assignee
Airbus Helicopters SAS
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 Airbus Helicopters SAS filed Critical Airbus Helicopters SAS
Priority to FR1771153A priority Critical patent/FR3072939B1/en
Publication of FR3072939A1 publication Critical patent/FR3072939A1/en
Application granted granted Critical
Publication of FR3072939B1 publication Critical patent/FR3072939B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
    • B64C27/59—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
    • B64C27/605—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical including swash plate, spider or cam mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/78—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement in association with pitch adjustment of blades of anti-torque rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transmission Devices (AREA)
  • Retarders (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne un rotor à pas collectif variable mobile en rotation autour d'un axe de rotation (AXROT). Ledit rotor à pas collectif variable comprend une pluralité de pales montées individuellement mobile sur le moyeu (10) autour d'un axe de variation de pas (AXPAS). Un mécanisme de manœuvre comprend une tige de commande (31) montée mobile en translation par rapport au moyeu (10) et un plateau de commande monté tournant sur la tige de commande (31). Des bielles de pas (60) sont articulées à des bras (42) du plateau de commande et à des leviers de pas des pales. Au moins une dite bielle de pas (60) est articulée à un dit bras (42) par une liaison pivot (70) et à un dit levier de pas par une liaison rotule (63), le plateau de commande étant libre en rotation autour dudit axe de rotation (AXROT) par rapport au moyeu (10).The present invention relates to a rotor with variable collective pitch movable in rotation about an axis of rotation (AXROT). Said variable collective pitch rotor comprises a plurality of blades individually mounted to move on the hub (10) about a pitch variation axis (AXPAS). An operating mechanism comprises a control rod (31) mounted to move in translation relative to the hub (10) and a control plate rotatably mounted on the control rod (31). Pitch connecting rods (60) are articulated to arms (42) of the control plate and to pitch levers of the blades. At least one said pitch connecting rod (60) is articulated to a said arm (42) by a pivot connection (70) and to a said pitch lever by a ball joint (63), the control plate being free to rotate around of said axis of rotation (AXROT) relative to the hub (10).

FR1771153A 2017-10-31 2017-10-31 VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT Active FR3072939B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1771153A FR3072939B1 (en) 2017-10-31 2017-10-31 VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1771153 2017-10-31
FR1771153A FR3072939B1 (en) 2017-10-31 2017-10-31 VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT

Publications (2)

Publication Number Publication Date
FR3072939A1 FR3072939A1 (en) 2019-05-03
FR3072939B1 true FR3072939B1 (en) 2021-11-26

Family

ID=60627950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1771153A Active FR3072939B1 (en) 2017-10-31 2017-10-31 VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT

Country Status (1)

Country Link
FR (1) FR3072939B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757002B1 (en) 2019-06-26 2021-11-03 LEONARDO S.p.A. Anti-torque rotor for a helicopter
CN119239935A (en) * 2024-12-05 2025-01-03 浙江吉利控股集团有限公司 Thrust assembly and aircraft
CN119218413A (en) * 2024-12-05 2024-12-31 浙江吉利控股集团有限公司 Variable pitch propeller, thrust assembly and aircraft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818123A (en) * 1955-06-23 1957-12-31 Hiller Helicopters Rotary wing aircraft
US3637321A (en) * 1968-12-04 1972-01-25 Andrei Vladimirovich Nekrasov Tail rotor of a helicopter
WO1993002916A1 (en) * 1991-08-02 1993-02-18 The Boeing Company Ducted fan and pitch controls for tail rotor of rotary wing aircraft
FR2764577B1 (en) * 1997-06-13 1999-08-20 Eurocopter France ROTOR OF A GIRAVION WITH BEAT STOPS FIXED ON BLADES AND HUB, AND WITH LAW NOT DETERMINED
FR2946318B1 (en) * 2009-06-04 2012-11-16 Eurocopter France MECHANICAL DEVICE FOR COMBINING A FIRST AND A SECOND ORDER ORDER AND AN AIRCRAFT PROVIDED WITH SUCH A DEVICE.

Also Published As

Publication number Publication date
FR3072939A1 (en) 2019-05-03

Similar Documents

Publication Publication Date Title
FR3072939B1 (en) VARIABLE COLLECTIVE STEP ROTOR AND AIRCRAFT
CA2547025A1 (en) Stage control system for the variable pitch stator blades of a turbomachine
FR3001264A1 (en) SYSTEM FOR CHANGING THE PITCH OF THE BLADES OF A PROPELLER.
EP1724472A3 (en) Control system for variable guide vane stages of a turbomachine
GB1178650A (en) Improvements in Variable Geometry Axial Flow Compressors
FR3130894B1 (en) TURBOMACHINE MODULE EQUIPPED WITH VARIABLE PITCH BLADES AND AN ANNULAR INTERFACE SHELL
DK2597304T3 (en) WIND TURBINE WITH A MECHANISM FOR synchronously VARY SLOPE OF A MULTI BLADE ROTOR
US9090336B2 (en) Device for controlling the pitch of turboprop fan blades
JP2013511646A (en) Turbine engine with variable pitch stator blade stages with independent control
EP0068559A2 (en) Wheel assembly for actuation by fluids
FR2917709A1 (en) DEVICE FOR CONTROLLING HELICOPTER BLADES OR THE LIKE
CN214146025U (en) Fixed blade adjusting mechanism of gas compressor
EP3444444A1 (en) Variable pitch blade system for a turbomachine compressor
FR3098788B1 (en) Turbomachine module for a propeller with variable blade pitch and turbomachine comprising it
FR3111325B1 (en) PROPULSION ASSEMBLY WITH FOLDING BLADE PROPELLER AND METHOD FOR FOLDING THE BLADE
CA2988633C (en) Device for controlling a propeller, having variable-pitch blades, of a turboprop engine
EP2217492A2 (en) Rotor swashplate
FR3020342A1 (en) CYCLIC TRAY ASSEMBLY FOR CONTROLLING THE BLADES OF A ROTOR, ROTOR AND AIRCRAFT PROVIDED WITH SUCH AN ASSEMBLY
EP3381800B1 (en) Rotary-wing aircraft including a set of swashplates and two drive scissors
FR3004255A1 (en) DEVICE FOR TESTING A CONNECTING ROD OF A STATOR'S BLADE
WO2016207513A1 (en) System for controlling variable-setting blades for a turbine engine
US10227886B2 (en) Mechanism for driving blade orientation adjusting members
FR3126018B1 (en) SYSTEM FOR CHANGING THE PITCH OF THE BLADES OF A FAN OF A PROPULSIVE ASSEMBLY
US10837308B2 (en) Device for controlling variable-pitch members in a turbomachine
FR3087832B1 (en) HULL AND AIRCRAFT SYSTEM

Legal Events

Date Code Title Description
PLSC Publication of the preliminary search report

Effective date: 20190503

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6

PLFP Fee payment

Year of fee payment: 7

PLFP Fee payment

Year of fee payment: 8