WO2009103528A3 - Parametric blades with either sinusoidal lean or airfoils with arcs of ellipses - Google Patents

Parametric blades with either sinusoidal lean or airfoils with arcs of ellipses Download PDF

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Publication number
WO2009103528A3
WO2009103528A3 PCT/EP2009/001184 EP2009001184W WO2009103528A3 WO 2009103528 A3 WO2009103528 A3 WO 2009103528A3 EP 2009001184 W EP2009001184 W EP 2009001184W WO 2009103528 A3 WO2009103528 A3 WO 2009103528A3
Authority
WO
WIPO (PCT)
Prior art keywords
blades
parametric
airfoils
ellipses
lean
Prior art date
Application number
PCT/EP2009/001184
Other languages
French (fr)
Other versions
WO2009103528A2 (en
Inventor
Paolo Pietricola
Original Assignee
Paolo Pietricola
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 Paolo Pietricola filed Critical Paolo Pietricola
Publication of WO2009103528A2 publication Critical patent/WO2009103528A2/en
Publication of WO2009103528A3 publication Critical patent/WO2009103528A3/en

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
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings
    • 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
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/301—Cross-sectional characteristics
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/16—Two-dimensional parabolic
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/17—Two-dimensional hyperbolic
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/184—Two-dimensional patterned sinusoidal
    • 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
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/74—Shape given by a set or table of xyz-coordinates

Landscapes

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

Abstract

This invention concerns rotor and stator parametric blades for employment in axial and mix flow rotary machines. The blades are characterized either from a sinusoidal lean or from airfoils '11' and/or '22' designed with a number of arches of ellipses. The blades object of this invention are suitable to be used either in classic designs or within optimization procedures, may be realized with 3D parametric CAD system and can be used in embodiments realized with at least one row of blades. The blades may be designed interpolating parametric airfoils (realized with circumferences, ellipses, and/or curves with continues curvature) along sinusoidal staking based on various combinations of lean & sweep. The proposed solutions allow to design & simulate improved & reliable 3D blades for rotary machine and aid reducing aerodynamic losses, acoustic emissions and mechanical stresses in a wide range of practical application.
PCT/EP2009/001184 2008-02-19 2009-02-19 Parametric blades with either sinusoidal lean or airfoils with arcs of ellipses WO2009103528A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000002A ITFO20080002A1 (en) 2008-02-19 2008-02-19 ROTORIC AND STATHIC POLES WITH SINUSOIDAL LEAN
ITFO2008000002 2008-02-19

Publications (2)

Publication Number Publication Date
WO2009103528A2 WO2009103528A2 (en) 2009-08-27
WO2009103528A3 true WO2009103528A3 (en) 2009-10-29

Family

ID=40291542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/001184 WO2009103528A2 (en) 2008-02-19 2009-02-19 Parametric blades with either sinusoidal lean or airfoils with arcs of ellipses

Country Status (2)

Country Link
IT (1) ITFO20080002A1 (en)
WO (1) WO2009103528A2 (en)

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US8167567B2 (en) 2008-12-17 2012-05-01 United Technologies Corporation Gas turbine engine airfoil
EP2568114A1 (en) * 2011-09-09 2013-03-13 Siemens Aktiengesellschaft Method for profiling a replacement blade as a replacement part for an old blade on an axial flow machine
EP2669475B1 (en) 2012-06-01 2018-08-01 Safran Aero Boosters SA S-shaped profile blade of axial turbomachine compressor, corresponding compressor and turbomachine
US10087758B2 (en) 2013-06-05 2018-10-02 Rotoliptic Technologies Incorporated Rotary machine
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US10233758B2 (en) 2013-10-08 2019-03-19 United Technologies Corporation Detuning trailing edge compound lean contour
WO2015126453A1 (en) * 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
EP4279747A3 (en) 2014-02-19 2024-03-13 RTX Corporation Turbofan engine with geared architecture and lpc blades
WO2015126774A1 (en) 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
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US10584715B2 (en) 2014-02-19 2020-03-10 United Technologies Corporation Gas turbine engine airfoil
WO2015178974A2 (en) 2014-02-19 2015-11-26 United Technologies Corporation Gas turbine engine airfoil
US10465702B2 (en) 2014-02-19 2019-11-05 United Technologies Corporation Gas turbine engine airfoil
US10495106B2 (en) 2014-02-19 2019-12-03 United Technologies Corporation Gas turbine engine airfoil
US10557477B2 (en) 2014-02-19 2020-02-11 United Technologies Corporation Gas turbine engine airfoil
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US10385866B2 (en) 2014-02-19 2019-08-20 United Technologies Corporation Gas turbine engine airfoil
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WO2015175044A2 (en) 2014-02-19 2015-11-19 United Technologies Corporation Gas turbine engine airfoil
US9732762B2 (en) 2014-08-27 2017-08-15 Pratt & Whitney Canada Corp. Compressor airfoil
US9765795B2 (en) 2014-08-27 2017-09-19 Pratt & Whitney Canada Corp. Compressor rotor airfoil
US10443390B2 (en) 2014-08-27 2019-10-15 Pratt & Whitney Canada Corp. Rotary airfoil
DE102014226689A1 (en) * 2014-12-19 2016-06-23 Rolls-Royce Deutschland Ltd & Co Kg Rotor blade of an axial flow machine
EP3163019B1 (en) 2015-10-26 2019-03-13 MTU Aero Engines GmbH Rotor blade
FR3043132B1 (en) * 2015-10-29 2017-10-20 Snecma AUBE NON-CARENEE OF RECTIFIER
GB2544735B (en) * 2015-11-23 2018-02-07 Rolls Royce Plc Vanes of a gas turbine engine
DE102017212310A1 (en) * 2017-07-19 2019-01-24 MTU Aero Engines AG Shovel, blade ring, blade ring segment and turbomachine
US11255343B2 (en) 2018-02-02 2022-02-22 General Electric Company Engine systems and methods
CN112867843A (en) 2018-09-11 2021-05-28 勒托力提科技有限公司 Seal in a spiral trochoid rotary machine
GB201818682D0 (en) 2018-11-16 2019-01-02 Rolls Royce Plc Boundary layer ingestion fan system
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CN110173459A (en) * 2019-05-23 2019-08-27 清华大学 Blade and its formative method and turbine
US11815094B2 (en) 2020-03-10 2023-11-14 Rotoliptic Technologies Incorporated Fixed-eccentricity helical trochoidal rotary machines
CN111664122A (en) * 2020-06-05 2020-09-15 中国航发沈阳发动机研究所 Stator guide blade at outlet of outer duct
US11802558B2 (en) 2020-12-30 2023-10-31 Rotoliptic Technologies Incorporated Axial load in helical trochoidal rotary machines
CN115013070B (en) * 2021-03-03 2024-01-30 中国航发商用航空发动机有限责任公司 Double-wall turbine blade modeling method
CN113221264B (en) * 2021-04-21 2022-09-27 山东双轮股份有限公司 Method for optimizing structural design of flow passage type guide vane of seawater desalination pump
CN113821889B (en) * 2021-09-24 2023-11-21 西南交通大学 Screen piece bionic design method based on pigeon wing structural characteristics
WO2023149844A1 (en) * 2022-02-07 2023-08-10 Cleanfuture Energy Co., Ltd. Variable pitch propeller blades and associated propeller applications

Citations (5)

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WO2002055845A1 (en) * 2001-01-11 2002-07-18 Paolo Pietricola A turbine engine
EP1333181A1 (en) * 2001-05-24 2003-08-06 Ishikawajima-Harima Heavy Industries Co., Ltd. Low noise fan stationary blade
US20040091353A1 (en) * 2002-09-03 2004-05-13 Shahrokhy Shahpar Guide vane for a gas turbine engine
WO2005005784A1 (en) * 2003-07-09 2005-01-20 Siemens Aktiengesellschaft Turbine blade
EP1505302A1 (en) * 2003-08-05 2005-02-09 General Electric Company Compressor airfoil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002055845A1 (en) * 2001-01-11 2002-07-18 Paolo Pietricola A turbine engine
EP1333181A1 (en) * 2001-05-24 2003-08-06 Ishikawajima-Harima Heavy Industries Co., Ltd. Low noise fan stationary blade
US20040091353A1 (en) * 2002-09-03 2004-05-13 Shahrokhy Shahpar Guide vane for a gas turbine engine
WO2005005784A1 (en) * 2003-07-09 2005-01-20 Siemens Aktiengesellschaft Turbine blade
EP1505302A1 (en) * 2003-08-05 2005-02-09 General Electric Company Compressor airfoil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENVIA E ET AL: "Design selection and analysis of a swept and leaned stator concept", JOURNAL OF SOUND & VIBRATION, LONDON, GB, vol. 228, no. 4, 9 December 1999 (1999-12-09), pages 793 - 836, XP002517872, ISSN: 0022-460X, [retrieved on 20020327] *

Also Published As

Publication number Publication date
ITFO20080002A1 (en) 2008-05-20
WO2009103528A2 (en) 2009-08-27

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