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EP2514975A3 - Flow engine - Google Patents

Flow engine Download PDF

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Publication number
EP2514975A3
EP2514975A3 EP12164964.4A EP12164964A EP2514975A3 EP 2514975 A3 EP2514975 A3 EP 2514975A3 EP 12164964 A EP12164964 A EP 12164964A EP 2514975 A3 EP2514975 A3 EP 2514975A3
Authority
EP
European Patent Office
Prior art keywords
rotor
annular space
peripheral housing
space surface
structuring
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
EP12164964.4A
Other languages
German (de)
French (fr)
Other versions
EP2514975B1 (en
EP2514975A2 (en
Inventor
Erik Johann
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 Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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 Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP2514975A2 publication Critical patent/EP2514975A2/en
Publication of EP2514975A3 publication Critical patent/EP2514975A3/en
Application granted granted Critical
Publication of EP2514975B1 publication Critical patent/EP2514975B1/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
    • F04D29/66—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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04—Antivibration arrangements
    • F01D25/06—Antivibration arrangements for preventing blade vibration
    • 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • 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
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface

Landscapes

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

Abstract

Die Erfindung betrifft eine Strömungsmaschine, die aufweist: mindestens einen Rotor (11, 21, 31), der einen Drehkörper mit einer Mehrzahl von an dem Drehkörper angeordneter Laufschaufeln (12, 22, 32) aufweist, und ein Umfangsgehäuse (15, 25) mit einer Mittelachse (2), das den Rotor (11, 21, 31) umgibt, wobei das Umfangsgehäuse (15, 25) oder ein mit diesem verbundenes Teil (9, 9') innenseitig eine Ringraumfläche (16, 26, 26a, 26b) aufweist, die einen Strömungskanal (3, 4) der Strömungsmaschine radial außen begrenzt, und die Ringraumfläche (16, 26, 26a, 26b) zumindest in einem Bereich, der umfangsseitig an einen Rotor (11, 21, 31) angrenzt, eine Strukturierung aufweist. Es ist vorgesehen, dass mindestens eine Strukturierung (6, 7) der Ringraumfläche (16, 26, 26a, 26b) bezogen auf die Mittelachse (2) des Umfangsgehäuses (15, 25) umfangsasymmetrisch ausgebildet ist.

Figure imgaf001
The invention relates to a turbomachine comprising: at least one rotor (11, 21, 31) having a rotary body with a plurality of rotor blades (12, 22, 32) arranged on the rotary body, and a peripheral housing (15, 25) a central axis (2) which surrounds the rotor (11, 21, 31), wherein the peripheral housing (15, 25) or a part (9, 9 ') connected thereto has an annular space surface (16, 26, 26a, 26b) on the inside has a flow channel (3, 4) of the turbomachine radially outwardly bounded, and the annular space surface (16, 26, 26 a, 26 b) at least in a region which peripherally adjacent to a rotor (11, 21, 31), has a structuring , It is provided that at least one structuring (6, 7) of the annular space surface (16, 26, 26a, 26b) with respect to the central axis (2) of the peripheral housing (15, 25) is circumferentially asymmetric.
Figure imgaf001
EP12164964.4A 2011-04-20 2012-04-20 Flow engine Active EP2514975B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011007767A DE102011007767A1 (en) 2011-04-20 2011-04-20 flow machine

Publications (3)

Publication Number Publication Date
EP2514975A2 EP2514975A2 (en) 2012-10-24
EP2514975A3 true EP2514975A3 (en) 2014-06-11
EP2514975B1 EP2514975B1 (en) 2017-08-02

Family

ID=46000967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12164964.4A Active EP2514975B1 (en) 2011-04-20 2012-04-20 Flow engine

Country Status (3)

Country Link
US (1) US9816528B2 (en)
EP (1) EP2514975B1 (en)
DE (1) DE102011007767A1 (en)

Families Citing this family (11)

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US9267386B2 (en) 2012-06-29 2016-02-23 United Technologies Corporation Fairing assembly
WO2014028056A1 (en) 2012-08-17 2014-02-20 United Technologies Corporation Contoured flowpath surface
US10344711B2 (en) * 2016-01-11 2019-07-09 Rolls-Royce Corporation System and method of alleviating blade flutter
US10465539B2 (en) * 2017-08-04 2019-11-05 Pratt & Whitney Canada Corp. Rotor casing
DE102018116062A1 (en) * 2018-07-03 2020-01-09 Rolls-Royce Deutschland Ltd & Co Kg Structure assembly for a compressor of a turbomachine
CN116464675B (en) * 2023-06-20 2023-09-01 河北拓顺医疗科技有限公司 Shock-absorbing noise reduction device for ventilator built-in fan
US12258870B1 (en) 2024-03-08 2025-03-25 Rolls-Royce North American Technologies Inc. Adjustable fan track liner with slotted array active fan tip treatment for distortion tolerance
US12209541B1 (en) 2024-05-09 2025-01-28 Rolls-Royce North American Technologies Inc. Adjustable fan track liner with dual slotted array active fan tip treatment for distortion tolerance
US12215712B1 (en) 2024-05-09 2025-02-04 Rolls-Royce North American Technologies Inc. Adjustable fan track liner with dual grooved array active fan tip treatment for distortion tolerance
US12168983B1 (en) 2024-06-28 2024-12-17 Rolls-Royce North American Technologies Inc. Active fan tip treatment using rotating drum array in fan track liner with axial and circumferential channels for distortion tolerance
US12209502B1 (en) 2024-06-28 2025-01-28 Rolls-Royce North American Technologies Inc. Active fan tip treatment using rotating drum array with axial channels in fan track liner for distortion tolerance

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US20070160459A1 (en) * 2006-01-12 2007-07-12 Rolls-Royce Plc Blade and rotor arrangement
EP2180195A2 (en) * 2008-10-21 2010-04-28 Rolls-Royce Deutschland Ltd & Co KG Turbo machine with tip clearance control

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US4531362A (en) * 1980-12-29 1985-07-30 Rolls-Royce Limited Aerodynamic damping of vibrations in rotor blades
GB2245312A (en) * 1984-06-19 1992-01-02 Rolls Royce Plc Axial flow compressor surge margin improvement
GB2408546A (en) * 2003-11-25 2005-06-01 Rolls Royce Plc Compressor casing treatment slots
EP1783346A2 (en) * 2005-11-04 2007-05-09 United Technologies Corporation Duct for reducing shock related noise
US20070160459A1 (en) * 2006-01-12 2007-07-12 Rolls-Royce Plc Blade and rotor arrangement
EP2180195A2 (en) * 2008-10-21 2010-04-28 Rolls-Royce Deutschland Ltd & Co KG Turbo machine with tip clearance control

Also Published As

Publication number Publication date
US20120269619A1 (en) 2012-10-25
DE102011007767A1 (en) 2012-10-25
EP2514975B1 (en) 2017-08-02
US9816528B2 (en) 2017-11-14
EP2514975A2 (en) 2012-10-24

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