GB560107A - Improved pitch control mechanism for screw propellers - Google Patents

Improved pitch control mechanism for screw propellers

Info

Publication number
GB560107A
GB560107A GB1607441A GB1607441A GB560107A GB 560107 A GB560107 A GB 560107A GB 1607441 A GB1607441 A GB 1607441A GB 1607441 A GB1607441 A GB 1607441A GB 560107 A GB560107 A GB 560107A
Authority
GB
United Kingdom
Prior art keywords
rotor
splines
blades
stator
passages
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
GB1607441A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1607441A priority Critical patent/GB560107A/en
Publication of GB560107A publication Critical patent/GB560107A/en
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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Rotary Pumps (AREA)

Abstract

560,107. Screw propellers. HOOVER, W. S. Dec. 12, 1941, No. 16074. [Class 114] A two-pitch air screw is provided with means for finely adjusting the initial low pitch position of the blades. Bevel gears 3 on the blade roots mesh with a common bevel gear 23 having internal splines 83 engaging corresponding splines on a ring 18 internally splined at 84 to engage corresponding splines on the rotor 19 of a hydraulic vane motor, the stator member 24 of which has peripheral splines 81 engaging internal splines in the hub. One side of the vanes on the rotor 19 is under constant engine oil pressure through passages b, b<1> tending to move the blades to low pitch position, and the other side may be provided with high pressure oil through passages a, a<1> from a booster pump and a valve controlled by the pilot. Stops 32 on the rotor 19 co-operate with stops on the stator to limit the movements of the rotor in both directions. The splines 81, 83, 84 permit angular adjustment of the stator and rotor relatively to the hub and to each other and by suitably selecting the pitch of the splines, the initial adjustments between rotor 19 and the blades may be made in increments of a degree.
GB1607441A 1941-12-12 1941-12-12 Improved pitch control mechanism for screw propellers Expired GB560107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1607441A GB560107A (en) 1941-12-12 1941-12-12 Improved pitch control mechanism for screw propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1607441A GB560107A (en) 1941-12-12 1941-12-12 Improved pitch control mechanism for screw propellers

Publications (1)

Publication Number Publication Date
GB560107A true GB560107A (en) 1944-03-21

Family

ID=10070675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1607441A Expired GB560107A (en) 1941-12-12 1941-12-12 Improved pitch control mechanism for screw propellers

Country Status (1)

Country Link
GB (1) GB560107A (en)

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