EP1826413A3 - Rotor blade for a ninth phase of a compressor - Google Patents

Rotor blade for a ninth phase of a compressor Download PDF

Info

Publication number
EP1826413A3
EP1826413A3 EP07103096A EP07103096A EP1826413A3 EP 1826413 A3 EP1826413 A3 EP 1826413A3 EP 07103096 A EP07103096 A EP 07103096A EP 07103096 A EP07103096 A EP 07103096A EP 1826413 A3 EP1826413 A3 EP 1826413A3
Authority
EP
European Patent Office
Prior art keywords
blade
compressor
rotor
itself
ninth phase
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.)
Granted
Application number
EP07103096A
Other languages
German (de)
French (fr)
Other versions
EP1826413A2 (en
EP1826413B1 (en
Inventor
Alessio Novori
Paolo Arinci
Salvatore Lorusso
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.)
Nuovo Pignone SpA
Original Assignee
Nuovo Pignone SpA
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 Nuovo Pignone SpA filed Critical Nuovo Pignone SpA
Publication of EP1826413A2 publication Critical patent/EP1826413A2/en
Publication of EP1826413A3 publication Critical patent/EP1826413A3/en
Application granted granted Critical
Publication of EP1826413B1 publication Critical patent/EP1826413B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

The invention relates to a blade (10) of a rotor of a ninth phase of a compressor, which can be defined by coordinates of a discreet combination of points, in a Cartesian reference system (X,Y,Z), wherein the axis (Z) is a radial axis intersecting the central axis of the compressor, said blade (10) having a profile which can be identified by means of a series of closed intersection curves between the profile itself and planes (X,Y) lying at distances (Z) from the central axis, said blade (10) also comprising a thickening (30), substantially parallel to a base portion (12) of the blade (10) itself, fixable to said rotor, said thickening (30) being substantially situated half-way up the blade (10) and being suitable for shifting the natural resonance frequencies of the blade (10) itself outside a functioning frequency range of said rotor.
EP07103096A 2006-02-27 2007-02-27 Rotor blade for a ninth phase of a compressor Active EP1826413B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000341A ITMI20060341A1 (en) 2006-02-27 2006-02-27 SHOVEL OF A ROTOR OF A NON-STAGE OF A COMPRESSOR

Publications (3)

Publication Number Publication Date
EP1826413A2 EP1826413A2 (en) 2007-08-29
EP1826413A3 true EP1826413A3 (en) 2010-09-22
EP1826413B1 EP1826413B1 (en) 2011-11-02

Family

ID=38051867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07103096A Active EP1826413B1 (en) 2006-02-27 2007-02-27 Rotor blade for a ninth phase of a compressor

Country Status (8)

Country Link
EP (1) EP1826413B1 (en)
JP (1) JP5314852B2 (en)
KR (1) KR101433373B1 (en)
CN (1) CN101029647B (en)
AT (1) ATE531944T1 (en)
CA (1) CA2579387C (en)
IT (1) ITMI20060341A1 (en)
NO (1) NO20071076L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009036406A1 (en) * 2009-08-06 2011-02-10 Mtu Aero Engines Gmbh airfoil
IT1401661B1 (en) * 2010-08-25 2013-08-02 Nuova Pignone S R L FORM OF AODINAMIC PROFILE BY COMPRESSOR.
EP3051142B1 (en) 2015-01-28 2017-10-11 MTU Aero Engines GmbH Gas turbine axial compressor
US10294957B2 (en) * 2015-10-16 2019-05-21 Hamilton Sundstrand Corporation Fan rotor blade having an optimized blade root
US9995144B2 (en) 2016-02-18 2018-06-12 General Electric Company Turbine blade centroid shifting method and system
CN107829985B (en) * 2017-09-28 2019-09-10 中国航发动力股份有限公司 A kind of modification method of aeroengine fan blades intrinsic frequency
CN113217418B (en) * 2021-06-29 2022-07-19 中国科学院工程热物理研究所 Pneumatic appearance structure of multistage axial compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020064458A1 (en) * 2000-11-30 2002-05-30 Matthew Montgomery Frequency-mistuned light-weight turbomachinery blade rows for increased flutter stability
EP1528223A2 (en) * 2003-10-29 2005-05-04 ROLLS-ROYCE plc Design of vanes for exposure to vibratory loading
EP1645720A1 (en) * 2004-10-05 2006-04-12 Honeywell International Inc. Frequency tailored blade thickness for a turbomachinewheel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108573A (en) * 1977-01-26 1978-08-22 Westinghouse Electric Corp. Vibratory tuning of rotatable blades for elastic fluid machines
US4318672A (en) * 1978-11-06 1982-03-09 Nordisk Ventilator Co. A/S Particle erosion resistant covering for fan blade leading edge
JPH03206400A (en) * 1990-01-08 1991-09-09 Hitachi Ltd Device for removing matter sticking to blade surface of turbomachinery
JP2002048095A (en) 2000-08-03 2002-02-15 Hitachi Ltd Blade for axial flow compressor
US6428269B1 (en) * 2001-04-18 2002-08-06 United Technologies Corporation Turbine engine bearing support
US6857853B1 (en) * 2003-08-13 2005-02-22 General Electric Company Conical tip shroud fillet for a turbine bucket
US7186090B2 (en) * 2004-08-05 2007-03-06 General Electric Company Air foil shape for a compressor blade
CN1755123A (en) * 2004-09-27 2006-04-05 乐金电子(天津)电器有限公司 Compressor impeller structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020064458A1 (en) * 2000-11-30 2002-05-30 Matthew Montgomery Frequency-mistuned light-weight turbomachinery blade rows for increased flutter stability
EP1528223A2 (en) * 2003-10-29 2005-05-04 ROLLS-ROYCE plc Design of vanes for exposure to vibratory loading
EP1645720A1 (en) * 2004-10-05 2006-04-12 Honeywell International Inc. Frequency tailored blade thickness for a turbomachinewheel

Also Published As

Publication number Publication date
CN101029647A (en) 2007-09-05
KR101433373B1 (en) 2014-08-26
JP2007231946A (en) 2007-09-13
ITMI20060341A1 (en) 2007-08-28
CA2579387C (en) 2015-10-20
ATE531944T1 (en) 2011-11-15
KR20070089080A (en) 2007-08-30
NO20071076L (en) 2007-08-28
EP1826413A2 (en) 2007-08-29
EP1826413B1 (en) 2011-11-02
CA2579387A1 (en) 2007-08-27
JP5314852B2 (en) 2013-10-16
CN101029647B (en) 2014-11-26

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