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GB176842A - Improvements in propellers and fans - Google Patents

Improvements in propellers and fans

Info

Publication number
GB176842A
GB176842A GB31559/20A GB3155920A GB176842A GB 176842 A GB176842 A GB 176842A GB 31559/20 A GB31559/20 A GB 31559/20A GB 3155920 A GB3155920 A GB 3155920A GB 176842 A GB176842 A GB 176842A
Authority
GB
United Kingdom
Prior art keywords
slots
propellers
tips
cross
section
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
GB31559/20A
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 GB31559/20A priority Critical patent/GB176842A/en
Publication of GB176842A publication Critical patent/GB176842A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—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
    • B64C11/16—Blades
    • B64C11/18—Aerodynamic features
    • 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
    • B64C11/20—Constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

176,842. Oliver, R. G. July 4, 1921. Screw propellers.-The blades of a screw propeller, fan, or the like are constructed with slots which curve in cross-section and longitudinally, having overlapping edges, and in which the several parts fall within the configuration of an ordinary blade. The slots may extend to the tips or may be bridged at or near the tips. The blade with three parts a, b, c, Fig. 1, has two slots o which are curved longitudinally and in cross-section, alternative sections being as shown in Figs. 2 and 4.
GB31559/20A 1921-07-04 1921-07-04 Improvements in propellers and fans Expired GB176842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB31559/20A GB176842A (en) 1921-07-04 1921-07-04 Improvements in propellers and fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31559/20A GB176842A (en) 1921-07-04 1921-07-04 Improvements in propellers and fans

Publications (1)

Publication Number Publication Date
GB176842A true GB176842A (en) 1922-03-23

Family

ID=10324926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31559/20A Expired GB176842A (en) 1921-07-04 1921-07-04 Improvements in propellers and fans

Country Status (1)

Country Link
GB (1) GB176842A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576700A (en) * 1947-06-02 1951-11-27 Schneider Brothers Company Blading for fluid flow devices
US4687416A (en) * 1981-02-13 1987-08-18 Spranger Guenther Method and device for decreasing the flow resistance on wings particularly aerofoils and blades of turbomachines exposed to gas flux such as air
GB2204643A (en) * 1986-09-03 1988-11-16 Dennis George Bourne Marine propeller
BG64698B1 (en) * 2001-08-01 2005-12-30 Добромир АЛЕКСАНДРОВ Propeller
WO2010046502A1 (en) * 2008-10-24 2010-04-29 Creaidea B.V. Propeller for gas displacement apparatus
WO2011020458A3 (en) * 2009-08-19 2011-09-15 Konrad Buckel Rotor element for a fluid to flow around and rotor
EP3728025A4 (en) * 2017-12-19 2021-09-08 Wing Aviation LLC FIBER SHEET STACKED ROTOR DESIGN
US12534194B1 (en) * 2022-12-13 2026-01-27 Wisk Aero Llc Propeller blade configuration

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576700A (en) * 1947-06-02 1951-11-27 Schneider Brothers Company Blading for fluid flow devices
US4687416A (en) * 1981-02-13 1987-08-18 Spranger Guenther Method and device for decreasing the flow resistance on wings particularly aerofoils and blades of turbomachines exposed to gas flux such as air
GB2204643A (en) * 1986-09-03 1988-11-16 Dennis George Bourne Marine propeller
GB2204643B (en) * 1986-09-03 1991-05-15 Dennis George Bourne A combined lift and thrust propeller for the propulsion of water craft.
BG64698B1 (en) * 2001-08-01 2005-12-30 Добромир АЛЕКСАНДРОВ Propeller
WO2010046502A1 (en) * 2008-10-24 2010-04-29 Creaidea B.V. Propeller for gas displacement apparatus
WO2011020458A3 (en) * 2009-08-19 2011-09-15 Konrad Buckel Rotor element for a fluid to flow around and rotor
EP3728025A4 (en) * 2017-12-19 2021-09-08 Wing Aviation LLC FIBER SHEET STACKED ROTOR DESIGN
US11214356B2 (en) 2017-12-19 2022-01-04 Wing Aviation Llc Fiber sheet stacked rotor design
EP4253038A3 (en) * 2017-12-19 2023-12-20 Wing Aviation LLC Fiber sheet stacked rotor design
US12534194B1 (en) * 2022-12-13 2026-01-27 Wisk Aero Llc Propeller blade configuration

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