GB1473417A - Blades for fluid flow machines - Google Patents

Blades for fluid flow machines

Info

Publication number
GB1473417A
GB1473417A GB3328274A GB3328274A GB1473417A GB 1473417 A GB1473417 A GB 1473417A GB 3328274 A GB3328274 A GB 3328274A GB 3328274 A GB3328274 A GB 3328274A GB 1473417 A GB1473417 A GB 1473417A
Authority
GB
United Kingdom
Prior art keywords
portions
lugs
july
pin
hinge means
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
GB3328274A
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB3328274A priority Critical patent/GB1473417A/en
Priority to DE19752532442 priority patent/DE2532442A1/en
Priority to FR7523308A priority patent/FR2279927A1/en
Priority to JP9150275A priority patent/JPS5136610A/en
Publication of GB1473417A publication Critical patent/GB1473417A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Architecture (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1473417 Turbomachine blades ROLLS ROYCE (1971) Ltd 23 July 1975 [27 July 1974] 33282/74 Heading F1T A blade, e.g. for a fan or compressor rotor of a gas turbine engine, comprises a single cantilever aerofoil having radially inner and outer aerofoil portions 11, 12 connected by chordwise extending hinge means 13. As shown the latter comprises interdigitated lugs 16, 17 and a pin 14, confronting flat faces, 18, 19, Fig. 3 (not shown), on the lugs acting as stops to limit the extent of pivotal movement. Friction between the pin and lugs damps vibration. Portions 11, 12 may be respectively of titanium alloy and aluminium alloy. In a modification, Figs. 4, 5 (not shown), the hinge means is formed by a weakened neck (21) between the portions 11, 12.
GB3328274A 1974-07-27 1974-07-27 Blades for fluid flow machines Expired GB1473417A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3328274A GB1473417A (en) 1974-07-27 1974-07-27 Blades for fluid flow machines
DE19752532442 DE2532442A1 (en) 1974-07-27 1975-07-19 SHOVEL FOR FLOW MACHINERY
FR7523308A FR2279927A1 (en) 1974-07-27 1975-07-25 BLADES FOR FLUID FLOW MACHINES
JP9150275A JPS5136610A (en) 1974-07-27 1975-07-26 RYUTAIKI KAIYOYOKU

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3328274A GB1473417A (en) 1974-07-27 1974-07-27 Blades for fluid flow machines

Publications (1)

Publication Number Publication Date
GB1473417A true GB1473417A (en) 1977-05-11

Family

ID=10350904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3328274A Expired GB1473417A (en) 1974-07-27 1974-07-27 Blades for fluid flow machines

Country Status (4)

Country Link
JP (1) JPS5136610A (en)
DE (1) DE2532442A1 (en)
FR (1) FR2279927A1 (en)
GB (1) GB1473417A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8366378B2 (en) 2008-08-27 2013-02-05 Rolls-Royce Plc Blade assembly
US8430623B2 (en) 2008-08-27 2013-04-30 Rolls-Royce Plc Blade
CN104246134A (en) * 2012-04-24 2014-12-24 联合工艺公司 Airfoil including member connected by articulated joint
WO2015172820A1 (en) * 2014-05-13 2015-11-19 R.E.M. Holding S.R.L. Blade for industrial axial fan and industrial axial fan comprising such blade

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509896A (en) * 1982-03-01 1985-04-09 Tech Development Inc. Turbine rotor
DE3710321C1 (en) * 1987-03-28 1988-06-01 Mtu Muenchen Gmbh Fan blade, especially for prop fan engines
US5877566A (en) * 1996-03-22 1999-03-02 Chen; Chi-Der Submersible magnetic motor having improved rotary blades

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8366378B2 (en) 2008-08-27 2013-02-05 Rolls-Royce Plc Blade assembly
US8430623B2 (en) 2008-08-27 2013-04-30 Rolls-Royce Plc Blade
CN104246134A (en) * 2012-04-24 2014-12-24 联合工艺公司 Airfoil including member connected by articulated joint
WO2015172820A1 (en) * 2014-05-13 2015-11-19 R.E.M. Holding S.R.L. Blade for industrial axial fan and industrial axial fan comprising such blade
CN106460869A (en) * 2014-05-13 2017-02-22 雷姆控股有限公司 Blade for industrial axial fan and industrial axial fan comprising the blade
RU2665191C2 (en) * 2014-05-13 2018-08-28 Р.Е.М. Холдинг С.Р.Л. Blade for industrial axial fan and industrial axial fan comprising such blade
US10502236B2 (en) 2014-05-13 2019-12-10 R.E.M. Holding S.R.L. Blade for industrial axial fan and industrial axial fan comprising such blade

Also Published As

Publication number Publication date
FR2279927A1 (en) 1976-02-20
JPS5136610A (en) 1976-03-27
DE2532442A1 (en) 1976-02-12

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed