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GB293656A - Improvements in or relating to propellers or screws - Google Patents

Improvements in or relating to propellers or screws

Info

Publication number
GB293656A
GB293656A GB346228A GB346228A GB293656A GB 293656 A GB293656 A GB 293656A GB 346228 A GB346228 A GB 346228A GB 346228 A GB346228 A GB 346228A GB 293656 A GB293656 A GB 293656A
Authority
GB
United Kingdom
Prior art keywords
passages
holes
rear edge
propellers
screws
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
GB346228A
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 GB346228A priority Critical patent/GB293656A/en
Publication of GB293656A publication Critical patent/GB293656A/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

Landscapes

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

Abstract

293,656. Tismer, F. Feb. 3, 1928. Screw propellers.-Screw-propeller blades a are provided at the rear edge h with passages of diminishing width from f to g and leading from the driving face b to the suction face c, and/or tapered holes or slots i adjacent the rear edge also diminishing in width from d to e. The passages or holes may have a twist and be of any shape in cross-section. The passages may be formed in grooved members mounted on the rear edge of the blades and the holes may be lined. Provision may be made for controlling the passages or holes either by manual or automatic means.
GB346228A 1928-02-03 1928-02-03 Improvements in or relating to propellers or screws Expired GB293656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB346228A GB293656A (en) 1928-02-03 1928-02-03 Improvements in or relating to propellers or screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346228A GB293656A (en) 1928-02-03 1928-02-03 Improvements in or relating to propellers or screws

Publications (1)

Publication Number Publication Date
GB293656A true GB293656A (en) 1928-07-12

Family

ID=9758771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB346228A Expired GB293656A (en) 1928-02-03 1928-02-03 Improvements in or relating to propellers or screws

Country Status (1)

Country Link
GB (1) GB293656A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232724A (en) * 1988-12-21 1990-12-19 Marconi Company P L C Reducing resonance of a hydrofoil or aerofoil
US6435815B2 (en) 2000-01-22 2002-08-20 Rolls-Royce Plc Aerofoil for an axial flow turbo machine
EP1533529A3 (en) * 2003-11-24 2008-03-19 ALSTOM Technology Ltd Method to improve the flow conditions in an axial compressor and axial compressor using this method
US8764380B2 (en) 2010-07-07 2014-07-01 Rolls-Royce Plc Rotor blade
DE102013206207A1 (en) * 2013-04-09 2014-10-09 MTU Aero Engines AG Airfoil for a turbomachine with trailing edge profiling, blade and integrally bladed rotor
WO2018046976A1 (en) * 2016-09-07 2018-03-15 Nyiri Attila Aerodynamic regulation of airscrew-, fan- and wind turbine blades with bores and/or cutting and/or notching
US12017742B2 (en) 2017-05-11 2024-06-25 Oscar Propulsion Ltd. Cavitation and noise reduction in axial flow rotors

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232724A (en) * 1988-12-21 1990-12-19 Marconi Company P L C Reducing resonance of a hydrofoil or aerofoil
US5074376A (en) * 1988-12-21 1991-12-24 The Marconi Company Limited Noise reduction method
GB2232724B (en) * 1988-12-21 1993-06-16 Marconi Company P L C Noise reduction method
US6435815B2 (en) 2000-01-22 2002-08-20 Rolls-Royce Plc Aerofoil for an axial flow turbo machine
EP1118747A3 (en) * 2000-01-22 2003-01-08 Rolls-Royce Plc An aerofoil for an axial flow turbomachine
EP1533529A3 (en) * 2003-11-24 2008-03-19 ALSTOM Technology Ltd Method to improve the flow conditions in an axial compressor and axial compressor using this method
US8764380B2 (en) 2010-07-07 2014-07-01 Rolls-Royce Plc Rotor blade
DE102013206207A1 (en) * 2013-04-09 2014-10-09 MTU Aero Engines AG Airfoil for a turbomachine with trailing edge profiling, blade and integrally bladed rotor
US9657576B2 (en) 2013-04-09 2017-05-23 MTU Aero Engines AG Airfoil having a profiled trailing edge for a fluid flow machine, blade, and integrally blade rotor
WO2018046976A1 (en) * 2016-09-07 2018-03-15 Nyiri Attila Aerodynamic regulation of airscrew-, fan- and wind turbine blades with bores and/or cutting and/or notching
RU2733929C1 (en) * 2016-09-07 2020-10-08 Аттила НЬИРИ Aerodynamic control of propeller, fan and wind turbine blades by means of holes and/or cuts and/or recesses
US12017742B2 (en) 2017-05-11 2024-06-25 Oscar Propulsion Ltd. Cavitation and noise reduction in axial flow rotors

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