GB531608A - Improvements in or relating to aircraft with rotating wing systems - Google Patents

Improvements in or relating to aircraft with rotating wing systems

Info

Publication number
GB531608A
GB531608A GB1814/39A GB181439A GB531608A GB 531608 A GB531608 A GB 531608A GB 1814/39 A GB1814/39 A GB 1814/39A GB 181439 A GB181439 A GB 181439A GB 531608 A GB531608 A GB 531608A
Authority
GB
United Kingdom
Prior art keywords
shaft
bearing
blades
pitch
rotation
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.)
Expired
Application number
GB1814/39A
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.)
BRANDENBURGISCHE MOTORENWERKE
Original Assignee
BRANDENBURGISCHE MOTORENWERKE
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 BRANDENBURGISCHE MOTORENWERKE filed Critical BRANDENBURGISCHE MOTORENWERKE
Publication of GB531608A publication Critical patent/GB531608A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)

Abstract

531,608. Aircraft with rotating wing systems. BRANDENBURGISCHE MOTORENWERKE GES. Jan, 18, 1939, No. 1814. Convention date, Jan. 18, 1938. [Class 4] A rotor hub for a rotating wing system having blades pivoted thereto about their longitudinal axes, has means for varying the pitch of the blades as a whole, or cyclically during rotation, comprising link connections to a ring which can be moved vertically or tilted about a transverse axis in response to the rotation of two co-axially mounted control shafts. As shown, blades 6 are mounted for pitch adjustment on a hub 5 connected to a large bevel wheel 4 rotatably mounted on a fixed base 1 and driven by a shaft 2 and bevel wheel 3. The blades carry lever arms 7 linked to a ring 9 rotatable in a bearing 10 pivoted about an axis 21 to an axially movable member 16. The member 16 is rotatably mounted at the end of a hollow shaft 12 on which is mounted an inclined bearing for a plate 13 carrying an arm 14 universally jointed to a fixed member 15. The member 16 is guided in the hub 5 and is prevented from rotating by a tongue and slot joint 17. Co-axial with the shaft 12 is a shaft 11 at the upper end of which is mounted an inclined bearing for a plate 18 carrying an arm 19 universally jointed to the bearing 10. Rotation of the shaft 12 causes axial movement of the member 16 and bearing 10 to adjust the pitch of the blade equally and in the same sense, whilst rotation of the shaft 11 causes the bearing 10 to pivot about the axis 21 to vary the amount of the cyclical adjustment of the blade pitch.
GB1814/39A 1938-01-18 1939-01-18 Improvements in or relating to aircraft with rotating wing systems Expired GB531608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE531608X 1938-01-18

Publications (1)

Publication Number Publication Date
GB531608A true GB531608A (en) 1941-01-08

Family

ID=6555058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1814/39A Expired GB531608A (en) 1938-01-18 1939-01-18 Improvements in or relating to aircraft with rotating wing systems

Country Status (1)

Country Link
GB (1) GB531608A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790301A (en) * 1970-07-10 1974-02-05 Nordisk Ventilator Axial flow fan, the impeller vanes of which are adjustable during operation
US4375940A (en) * 1979-02-27 1983-03-08 Costruzioni Aeronautiche Giovanni Agusta S.P.A. Rotor shaft with internal controls for helicopters
US4573873A (en) * 1983-01-13 1986-03-04 Hughes Helicopters, Inc. Collective and cyclic in-mast pitch control system for a helicopter
US4650400A (en) * 1984-03-26 1987-03-17 David Constant V Helicopter blade pitch adjusting system
CN109131852A (en) * 2018-09-21 2019-01-04 湖南湘晨飞机工业有限公司 A kind of rotorcraft rotor disk manipulation position-limit mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790301A (en) * 1970-07-10 1974-02-05 Nordisk Ventilator Axial flow fan, the impeller vanes of which are adjustable during operation
US4375940A (en) * 1979-02-27 1983-03-08 Costruzioni Aeronautiche Giovanni Agusta S.P.A. Rotor shaft with internal controls for helicopters
US4573873A (en) * 1983-01-13 1986-03-04 Hughes Helicopters, Inc. Collective and cyclic in-mast pitch control system for a helicopter
US4650400A (en) * 1984-03-26 1987-03-17 David Constant V Helicopter blade pitch adjusting system
CN109131852A (en) * 2018-09-21 2019-01-04 湖南湘晨飞机工业有限公司 A kind of rotorcraft rotor disk manipulation position-limit mechanism
CN109131852B (en) * 2018-09-21 2024-03-12 湖南湘晨飞机工业有限公司 Rotary wing disk control limiting mechanism of rotary wing aircraft

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