GB777955A - Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors - Google Patents

Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors

Info

Publication number
GB777955A
GB777955A GB13192/54A GB1319254A GB777955A GB 777955 A GB777955 A GB 777955A GB 13192/54 A GB13192/54 A GB 13192/54A GB 1319254 A GB1319254 A GB 1319254A GB 777955 A GB777955 A GB 777955A
Authority
GB
United Kingdom
Prior art keywords
spacers
circumferential
axial
stator
blades
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
GB13192/54A
Inventor
Geoffrey Bertram Rober Feilden
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.)
Ruston and Hornsby Ltd
Original Assignee
Ruston and Hornsby Ltd
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 Ruston and Hornsby Ltd filed Critical Ruston and Hornsby Ltd
Priority to GB13192/54A priority Critical patent/GB777955A/en
Publication of GB777955A publication Critical patent/GB777955A/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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/961—Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

777,955. Bladed rotors and stators of turbines and compressors. RUSTON & HORNSBY, Ltd. June 14, 1955 [July 6, 1954], No. 13192/54. Class 110 (3). In a bladed rotor or stator of an hydraulic, steam or gas turbine or an axial-flow compressor, the spacers of a set of spacers between adjacent blades of a circumferential row of blades are of different circumferential dimensions one from another. In the axial-flow compressor shown, the stator blades 11 of a circumferential row are mounted in grooves in the two halves of the stator casing 25 and the blade roots are spaced apart by means of spacers 28, 29 ... 37, the circumferential widths of the spacers increasing in arithmetic progression from 28 to 37. The spacers in the two stator halves may be similarly bladed whereby the lower half is a mirror image of the upper half. Alternatively, the spacers of the two halves may be arranged as shown so that spacers at diametrically-opposed points are of equal circumferential dimension. Again the spacers may be disposed at random around the circumferential assembly of blades. The object of the invention is to reduce or avoid the harmful effects of resonance.
GB13192/54A 1954-07-06 1954-07-06 Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors Expired GB777955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13192/54A GB777955A (en) 1954-07-06 1954-07-06 Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13192/54A GB777955A (en) 1954-07-06 1954-07-06 Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors

Publications (1)

Publication Number Publication Date
GB777955A true GB777955A (en) 1957-07-03

Family

ID=10018522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13192/54A Expired GB777955A (en) 1954-07-06 1954-07-06 Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors

Country Status (1)

Country Link
GB (1) GB777955A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006603A (en) * 1954-08-25 1961-10-31 Gen Electric Turbo-machine blade spacing with modulated pitch
US5285700A (en) * 1992-04-07 1994-02-15 Rolls-Royce Plc Rotor balancing
FR2702242A1 (en) * 1993-03-03 1994-09-09 Snecma Stage of free blades at one end.
EP0707150A3 (en) * 1994-10-14 1998-01-07 Asea Brown Boveri Ag Compression
EP1205633A2 (en) * 2000-11-04 2002-05-15 United Technologies Corporation Array flow directing elements
WO2006010712A1 (en) * 2004-07-26 2006-02-02 Alstom Technology Ltd Method for modifying a turbocompressor
EP1674734A1 (en) * 2004-12-21 2006-06-28 ALSTOM Technology Ltd Method for improving the flow stability of a turbo compressor
EP1772596A2 (en) * 2005-10-06 2007-04-11 General Electric Company Non-uniform stator vane spacing in a compressor and methods of installation
EP1386058B2 (en) † 2001-05-11 2010-01-20 Snecma Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure
GB2471151A (en) * 2009-06-17 2010-12-22 Dresser Rand Co A stator with non-uniformly spaced nozzle vanes
JP2012087788A (en) * 2010-10-20 2012-05-10 General Electric Co <Ge> Rotary machine having non-uniform moving blade and stationary vane spacing
JP2012087798A (en) * 2010-10-20 2012-05-10 General Electric Co <Ge> Rotary machine having spacer for controlling fluid dynamics
CN115013079A (en) * 2022-07-08 2022-09-06 泰安凯顺机电工程有限公司 Steam turbine with long service life

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006603A (en) * 1954-08-25 1961-10-31 Gen Electric Turbo-machine blade spacing with modulated pitch
US5285700A (en) * 1992-04-07 1994-02-15 Rolls-Royce Plc Rotor balancing
FR2702242A1 (en) * 1993-03-03 1994-09-09 Snecma Stage of free blades at one end.
EP0616110A1 (en) * 1993-03-03 1994-09-21 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Row of blades unsupported at one end
US5429479A (en) * 1993-03-03 1995-07-04 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Stage of vanes free at one extremity
EP0707150A3 (en) * 1994-10-14 1998-01-07 Asea Brown Boveri Ag Compression
EP1205633A2 (en) * 2000-11-04 2002-05-15 United Technologies Corporation Array flow directing elements
EP1205633A3 (en) * 2000-11-04 2003-12-03 United Technologies Corporation Array flow directing elements
EP1580400A1 (en) * 2000-11-04 2005-09-28 United Technologies Corporation Array of flow directing elements
EP1386058B2 (en) † 2001-05-11 2010-01-20 Snecma Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure
US7628576B2 (en) 2004-07-26 2009-12-08 Alstom Technology Ltd. Method of modifying a turbocompressor
WO2006010712A1 (en) * 2004-07-26 2006-02-02 Alstom Technology Ltd Method for modifying a turbocompressor
EP1674734A1 (en) * 2004-12-21 2006-06-28 ALSTOM Technology Ltd Method for improving the flow stability of a turbo compressor
WO2006067025A1 (en) * 2004-12-21 2006-06-29 Alstom Technology Ltd Method for modifying a turbocompressor
EP1772596A2 (en) * 2005-10-06 2007-04-11 General Electric Company Non-uniform stator vane spacing in a compressor and methods of installation
EP1772596A3 (en) * 2005-10-06 2012-11-28 General Electric Company Non-uniform stator vane spacing in a compressor and methods of installation
GB2471151A (en) * 2009-06-17 2010-12-22 Dresser Rand Co A stator with non-uniformly spaced nozzle vanes
US8277166B2 (en) 2009-06-17 2012-10-02 Dresser-Rand Company Use of non-uniform nozzle vane spacing to reduce acoustic signature
GB2471151B (en) * 2009-06-17 2016-06-15 Dresser-Rand Company Use of non-uniform nozzle vane spacing to reduce acoustic signature
JP2012087788A (en) * 2010-10-20 2012-05-10 General Electric Co <Ge> Rotary machine having non-uniform moving blade and stationary vane spacing
JP2012087798A (en) * 2010-10-20 2012-05-10 General Electric Co <Ge> Rotary machine having spacer for controlling fluid dynamics
DE102011054589B4 (en) 2010-10-20 2023-12-14 General Electric Company Rotary machine with spacers to control fluid dynamics
CN115013079A (en) * 2022-07-08 2022-09-06 泰安凯顺机电工程有限公司 Steam turbine with long service life

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