GB872687A - Improvements relating to propellers - Google Patents

Improvements relating to propellers

Info

Publication number
GB872687A
GB872687A GB43109/59A GB4310959A GB872687A GB 872687 A GB872687 A GB 872687A GB 43109/59 A GB43109/59 A GB 43109/59A GB 4310959 A GB4310959 A GB 4310959A GB 872687 A GB872687 A GB 872687A
Authority
GB
United Kingdom
Prior art keywords
blades
banks
bank
aft
dec
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
GB43109/59A
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.)
RTX Corp
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
Publication of GB872687A publication Critical patent/GB872687A/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
    • B64C11/16—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
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/48—Units of two or more coaxial propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)
  • Wind Motors (AREA)

Abstract

872,687. Screw propellers. UNITED AIRCRAFT CORPORATION. Dec. 18, 1959 [Dec. 19,1958], No. 43109/59. Class 114. A propeller comprises a plurality of banks of blades including a forward bank 16 and an aft bank 18 mounted on a hub 20, the blades of the banks 16 and 18 being similar in size, equal in number, and driven at the same speed in the same direction, and indexed relative to each other whereby the sparwise axis of a blade of the forward bank forms an acute angle with the spanwise axis of a corresponding blade of the aft bank, and means for varying the pitch of the blades of one of the banks. Said acute index angle lies between 20 degrees and 35 degrees. Corresponding blades of banks 16 and 18 cooperate in pairs deferring an aerofoil having an effective camber. The pitch of blades 18 is fixed, that of blades 16 is varied under the control of a governor 24, thereby automaically varying said effective camber as a function of speed.
GB43109/59A 1958-12-19 1959-12-18 Improvements relating to propellers Expired GB872687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US872687XA 1958-12-19 1958-12-19

Publications (1)

Publication Number Publication Date
GB872687A true GB872687A (en) 1961-07-12

Family

ID=22204141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43109/59A Expired GB872687A (en) 1958-12-19 1959-12-18 Improvements relating to propellers

Country Status (1)

Country Link
GB (1) GB872687A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175652A (en) * 1985-05-28 1986-12-03 Gen Electric Aircraft propeller control
FR2622170A1 (en) * 1987-10-26 1989-04-28 Deutsche Forsch Luft Raumfahrt AIRPLANE PROPELLER
US4928241A (en) * 1985-05-28 1990-05-22 General Electric Company Aircraft propeller control
GB2482545A (en) * 2010-08-06 2012-02-08 Ge Aviat Systems Ltd Aircraft propellers with composite blades
FR3070368A1 (en) * 2017-08-29 2019-03-01 Safran Aircraft Engines VARIABLE TIMING PROPELLER

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175652B (en) * 1985-05-28 1990-03-21 Gen Electric Aircraft propeller control
FR2582614A1 (en) * 1985-05-28 1986-12-05 Gen Electric ORDER OF AIRPLANE CONTRAROTATIVE PROPELLERS
GB2175652A (en) * 1985-05-28 1986-12-03 Gen Electric Aircraft propeller control
US4928241A (en) * 1985-05-28 1990-05-22 General Electric Company Aircraft propeller control
GB2211558B (en) * 1987-10-26 1992-07-08 Deutsche Forsch Luft Raumfahrt Propeller
GB2211558A (en) * 1987-10-26 1989-07-05 Deutsche Forsch Luft Raumfahrt Bladed rotor
FR2622170A1 (en) * 1987-10-26 1989-04-28 Deutsche Forsch Luft Raumfahrt AIRPLANE PROPELLER
GB2482545A (en) * 2010-08-06 2012-02-08 Ge Aviat Systems Ltd Aircraft propellers with composite blades
CN102381469A (en) * 2010-08-06 2012-03-21 通用电气航空系统有限公司 Propellers for aircraft
JP2012071823A (en) * 2010-08-06 2012-04-12 Ge Aviation Systems Ltd Propeller for aircraft
US9527578B2 (en) 2010-08-06 2016-12-27 Ge Aviation Systems Limited Propellers for aircraft
GB2482545B (en) * 2010-08-06 2017-05-03 Ge Aviat Systems Ltd Aircraft propellers with composite blades mounted to a single propeller hub
FR3070368A1 (en) * 2017-08-29 2019-03-01 Safran Aircraft Engines VARIABLE TIMING PROPELLER

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