NO174358C - Fremgangsmåte for beskyttelse av en dynamisk kompressor mot sug - Google Patents

Fremgangsmåte for beskyttelse av en dynamisk kompressor mot sug

Info

Publication number
NO174358C
NO174358C NO891239A NO891239A NO174358C NO 174358 C NO174358 C NO 174358C NO 891239 A NO891239 A NO 891239A NO 891239 A NO891239 A NO 891239A NO 174358 C NO174358 C NO 174358C
Authority
NO
Norway
Prior art keywords
protecting
suction
procedure
dynamic compressor
compressor
Prior art date
Application number
NO891239A
Other languages
English (en)
Norwegian (no)
Other versions
NO174358B (no
NO891239L (no
NO891239D0 (no
Inventor
Naum Staroselsky
Saul Mirsky
Paul A Reinke
Original Assignee
Compressor Controls Corp
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 Compressor Controls Corp filed Critical Compressor Controls Corp
Publication of NO891239D0 publication Critical patent/NO891239D0/no
Publication of NO891239L publication Critical patent/NO891239L/no
Publication of NO174358B publication Critical patent/NO174358B/no
Publication of NO174358C publication Critical patent/NO174358C/no

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02Surge control
    • F04D27/0284Conjoint control of two or more different functions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02Surge control
    • F04D27/0207Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0223Control schemes therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
NO891239A 1988-10-26 1989-03-21 Fremgangsmåte for beskyttelse av en dynamisk kompressor mot sug NO174358C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/263,172 US4949276A (en) 1988-10-26 1988-10-26 Method and apparatus for preventing surge in a dynamic compressor

Publications (4)

Publication Number Publication Date
NO891239D0 NO891239D0 (no) 1989-03-21
NO891239L NO891239L (no) 1990-04-27
NO174358B NO174358B (no) 1994-01-10
NO174358C true NO174358C (no) 1994-04-20

Family

ID=23000691

Family Applications (1)

Application Number Title Priority Date Filing Date
NO891239A NO174358C (no) 1988-10-26 1989-03-21 Fremgangsmåte for beskyttelse av en dynamisk kompressor mot sug

Country Status (7)

Country Link
US (1) US4949276A (de)
EP (3) EP0500196B1 (de)
CA (1) CA1291737C (de)
DE (3) DE68910467T2 (de)
ES (3) ES2045411T3 (de)
NO (1) NO174358C (de)
ZA (1) ZA897281B (de)

Families Citing this family (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195875A (en) * 1991-12-05 1993-03-23 Dresser-Rand Company Antisurge control system for compressors
US5306116A (en) * 1992-04-10 1994-04-26 Ingersoll-Rand Company Surge control and recovery for a centrifugal compressor
US5347467A (en) * 1992-06-22 1994-09-13 Compressor Controls Corporation Load sharing method and apparatus for controlling a main gas parameter of a compressor station with multiple dynamic compressors
US5463559A (en) * 1993-07-19 1995-10-31 Ingersoll-Rand Company Diagnostic apparatus for an electronic controller
US5355691A (en) * 1993-08-16 1994-10-18 American Standard Inc. Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive
US5535967A (en) * 1993-12-20 1996-07-16 Alliedsignal Inc. Floating speed electrically driven suction system
US5508943A (en) * 1994-04-07 1996-04-16 Compressor Controls Corporation Method and apparatus for measuring the distance of a turbocompressor's operating point to the surge limit interface
FI104205B (fi) * 1994-11-24 1999-11-30 Sarlin Hydor Oy Menetelmä ja laitteisto virtaavan väliaineen kompressointijärjestelmän ohjaamiseksi
US5537830A (en) * 1994-11-28 1996-07-23 American Standard Inc. Control method and appartus for a centrifugal chiller using a variable speed impeller motor drive
US5743715A (en) * 1995-10-20 1998-04-28 Compressor Controls Corporation Method and apparatus for load balancing among multiple compressors
US5599161A (en) * 1995-11-03 1997-02-04 Compressor Controls Corporation Method and apparatus for antisurge control of multistage compressors with sidestreams
US5709526A (en) * 1996-01-02 1998-01-20 Woodward Governor Company Surge recurrence prevention control system for dynamic compressors
JP3205561B2 (ja) * 1996-01-02 2001-09-04 ウッドウォード ガヴァナー カンパニー ダイナミックコンプレッサーのためのサージ防止制御システム
US5971712A (en) * 1996-05-22 1999-10-26 Ingersoll-Rand Company Method for detecting the occurrence of surge in a centrifugal compressor
US5908462A (en) * 1996-12-06 1999-06-01 Compressor Controls Corporation Method and apparatus for antisurge control of turbocompressors having surge limit lines with small slopes
US5892145A (en) * 1996-12-18 1999-04-06 Alliedsignal Inc. Method for canceling the dynamic response of a mass flow sensor using a conditioned reference
US6231306B1 (en) 1998-11-23 2001-05-15 United Technologies Corporation Control system for preventing compressor stall
US6202431B1 (en) * 1999-01-15 2001-03-20 York International Corporation Adaptive hot gas bypass control for centrifugal chillers
US6332336B1 (en) * 1999-02-26 2001-12-25 Compressor Controls Corporation Method and apparatus for maximizing the productivity of a natural gas liquids production plant
US6226974B1 (en) * 1999-06-25 2001-05-08 General Electric Co. Method of operation of industrial gas turbine for optimal performance
DE10012380A1 (de) * 2000-03-14 2001-09-20 Man Turbomasch Ag Ghh Borsig Verfahren zum Schutz eines Turbokompressors vor Betrieb im instabilen Arbeitsbereich
US6321543B1 (en) * 2000-03-15 2001-11-27 Carrier Corporation Method for protecting compressors used in chillers and/or heat pumps
NO313926B1 (no) * 2000-11-08 2002-12-23 Abb Research Ltd Kompressorstyring
DE10304063A1 (de) * 2003-01-31 2004-08-12 Man Turbomaschinen Ag Verfahren zum sicheren Betreiben von Turbokompressoren mit einer Pumpgrenzregelung und einem Pumpgrenzregelventil
DE10352252B4 (de) * 2003-11-08 2013-09-19 Alstom Technology Ltd. Kompressor für eine Turbogruppe
US7096669B2 (en) * 2004-01-13 2006-08-29 Compressor Controls Corp. Method and apparatus for the prevention of critical process variable excursions in one or more turbomachines
US7421853B2 (en) 2004-01-23 2008-09-09 York International Corporation Enhanced manual start/stop sequencing controls for a stream turbine powered chiller unit
US7328587B2 (en) 2004-01-23 2008-02-12 York International Corporation Integrated adaptive capacity control for a steam turbine powered chiller unit
US7421854B2 (en) 2004-01-23 2008-09-09 York International Corporation Automatic start/stop sequencing controls for a steam turbine powered chiller unit
RU2266431C1 (ru) * 2004-03-31 2005-12-20 Новиков Михаил Иванович Способ защиты от помпажа компрессора
US7094019B1 (en) 2004-05-17 2006-08-22 Continuous Control Solutions, Inc. System and method of surge limit control for turbo compressors
EP1659294B1 (de) * 2004-11-17 2017-01-11 Mitsubishi Heavy Industries Compressor Corporation Verdichtersteuereinheit und Gasturbinenkraftanlage mit dieser Einheit
RU2263231C1 (ru) * 2004-12-16 2005-10-27 Закрытое Акционерное Общество "Система Комплекс" Способ противопомпажного регулирования турбокомпрессора
RU2263233C1 (ru) * 2004-12-16 2005-10-27 Закрытое Акционерное Общество "Система Комплекс" Способ противопомпажного регулирования турбокомпрессора
RU2263234C1 (ru) * 2004-12-16 2005-10-27 Закрытое Акционерное Общество "Система Комплекс" Способ формирования сигнала помпажа турбокомпрессора
RU2263232C1 (ru) * 2004-12-16 2005-10-27 Закрытое Акционерное Общество "Система Комплекс" Способ противопомпажного регулирования и защиты турбокомпрессора
US7089738B1 (en) 2005-04-09 2006-08-15 Cummins, Inc. System for controlling turbocharger compressor surge
RU2303716C2 (ru) * 2005-06-28 2007-07-27 Государственное образовательное учреждение высшего профессионального образования "Самарская государственная академия путей сообщения" (СамГАПС) Способ защиты компрессора от помпажа и устройство для его осуществления
JP2007218586A (ja) * 2006-02-14 2007-08-30 Yokogawa Electric Corp マルチバリアブル質量流量伝送器
RU2311564C1 (ru) * 2006-07-17 2007-11-27 Закрытое Акционерное Общество "Система Комплекс" Способ измерения расстояния от рабочей точки турбокомпрессора до границы помпажа
RU2329403C2 (ru) * 2006-08-11 2008-07-20 Открытое акционерное общество "СТАР" Способ защиты газотурбинного двигателя от помпажа
US7712299B2 (en) * 2006-09-05 2010-05-11 Conocophillips Company Anti-bogdown control system for turbine/compressor systems
RU2329404C1 (ru) * 2006-10-05 2008-07-20 Открытое акционерное общество "СТАР" Способ защиты газотурбинного двигателя от помпажа
DE102007050797A1 (de) 2007-10-24 2008-07-24 Daimler Ag Verfahren zum Betreiben eines Brennstoffzellensystems mit einem in einem Brennstoffzellenkreislauf angeordneten, elektromotorisch angetriebenen Verdichter
WO2009079421A2 (en) * 2007-12-14 2009-06-25 Carrier Corporation Control device for hvac systems with inlet and outlet flow control devices
DE102008005354B4 (de) * 2008-01-21 2016-05-25 Man Diesel & Turbo Se Verfahren zur Regelung einer Strömungsmaschine
DE102008021102A1 (de) * 2008-04-28 2009-10-29 Siemens Aktiengesellschaft Wirkungsgradüberwachung eines Verdichters
US20090324382A1 (en) * 2008-05-05 2009-12-31 General Electric Company Torque-based sensor and control method for varying gas-liquid fractions of fluids for turbomachines
CN102378888B (zh) * 2008-07-29 2014-09-17 国际壳牌研究有限公司 用于控制压缩机的方法和设备以及冷却烃流的方法
DE102008058799B4 (de) * 2008-11-24 2012-04-26 Siemens Aktiengesellschaft Verfahren zum Betrieb eines mehrstufigen Verdichters
US8311684B2 (en) * 2008-12-17 2012-11-13 Pratt & Whitney Canada Corp. Output flow control in load compressor
WO2010114786A1 (en) * 2009-03-30 2010-10-07 Tm Ge Automation Systems Llc Compressor surge control system and method
IT1396001B1 (it) * 2009-04-28 2012-11-09 Nuovo Pignone Spa Sistema di recupero dell'energia in un impianto per la compressione di gas
US8342794B2 (en) * 2009-05-19 2013-01-01 General Electric Company Stall and surge detection system and method
US20120141251A1 (en) * 2009-08-21 2012-06-07 Universidad Politécnica de Madrid Method and device for predicting the instability of an axial compressor
JP4932886B2 (ja) 2009-09-30 2012-05-16 三菱重工コンプレッサ株式会社 ガス処理装置
JP2011122812A (ja) * 2009-10-20 2011-06-23 Johnson Controls Technology Co チラー制御用3次元サージマップのコンピュータ化された生成及び使用を与えるコントローラ及び方法
EP2354559A1 (de) * 2010-01-27 2011-08-10 Siemens Aktiengesellschaft Verdichtersteuerungsverfahren und System
US10900492B2 (en) 2010-05-11 2021-01-26 Energy Control Technologies, Inc. Method of anti-surge protection for a dynamic compressor using a surge parameter
US20120100013A9 (en) * 2010-05-11 2012-04-26 Krishnan Narayanan Method of surge protection for a dynamic compressor using a surge parameter
NO333438B1 (no) * 2010-07-14 2013-06-03 Statoil Asa Fremgangsmate og apparat for sammensetningsbasert kompressorkontroll og ytelsesovervaking.
EP2423515A1 (de) * 2010-08-25 2012-02-29 Siemens Aktiengesellschaft Industrielles Verdichtersystem
RU2453734C1 (ru) * 2010-10-12 2012-06-20 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Способ защиты центробежного компрессора от нестационарной динамической нагрузки
IT1402481B1 (it) * 2010-10-27 2013-09-13 Nuovo Pignone Spa Metodo e dispositivo che effettua una compensazione del tempo morto di anti-pompaggio basata su modello
US9133850B2 (en) * 2011-01-13 2015-09-15 Energy Control Technologies, Inc. Method for preventing surge in a dynamic compressor using adaptive preventer control system and adaptive safety margin
JP5634907B2 (ja) 2011-02-10 2014-12-03 株式会社日立製作所 圧縮機の制御装置及び制御方法
RU2458257C1 (ru) * 2011-04-14 2012-08-10 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Способ защиты турбокомпрессора от помпажа
US10436208B2 (en) * 2011-06-27 2019-10-08 Energy Control Technologies, Inc. Surge estimator
ITBA20110037A1 (it) * 2011-07-07 2013-01-08 Ind Plant Consultant Srl Metodo per la protezione dei compressori centrifughi dal fenomeno del pompaggio
ITCO20110069A1 (it) * 2011-12-20 2013-06-21 Nuovo Pignone Spa Disposizione di prova per uno stadio di un compressore centrifugo
US9074606B1 (en) 2012-03-02 2015-07-07 Rmoore Controls L.L.C. Compressor surge control
US9097447B2 (en) 2012-07-25 2015-08-04 Johnson Controls Technology Company Methods and controllers for providing a surge map for the monitoring and control of chillers
ITCO20120056A1 (it) * 2012-11-07 2014-05-08 Nuovo Pignone Srl Metodo per operare un compressore in caso di malfunzionamento di uno o piu' segnali di misura
JP5738262B2 (ja) * 2012-12-04 2015-06-17 三菱重工コンプレッサ株式会社 圧縮機制御装置、圧縮機システムおよび圧縮機制御方法
US10018157B2 (en) 2013-03-14 2018-07-10 Ford Global Technologies, Llc Methods and systems for boost control
ITFI20130063A1 (it) 2013-03-26 2014-09-27 Nuovo Pignone Srl "methods and systems for antisurge control of turbo compressors with side stream"
US9080506B2 (en) 2013-08-13 2015-07-14 Ford Global Technologies, Llc Methods and systems for boost control
US9279374B2 (en) 2013-08-13 2016-03-08 Ford Global Technologies, Llc Methods and systems for surge control
US9309837B2 (en) 2013-08-13 2016-04-12 Ford Global Technologies, Llc Methods and systems for EGR control
US9091202B2 (en) 2013-08-13 2015-07-28 Ford Global Technologies, Llc Methods and systems for boost control
US9682685B2 (en) 2013-08-13 2017-06-20 Ford Global Technologies, Llc Methods and systems for condensation control
US9174637B2 (en) 2013-08-13 2015-11-03 Ford Global Technologies, Llc Methods and systems for torque control
US9261051B2 (en) 2013-08-13 2016-02-16 Ford Global Technologies, Llc Methods and systems for boost control
US9309836B2 (en) 2013-08-13 2016-04-12 Ford Global Technologies, Llc Methods and systems for boost control
US9109505B2 (en) 2013-08-13 2015-08-18 Ford Global Technologies, Llc Methods and systems for condensation control
US9151219B2 (en) 2013-08-13 2015-10-06 Ford Global Technologies, Llc Methods and systems for surge control
US9303557B2 (en) 2013-08-13 2016-04-05 Ford Global Technologies, Llc Methods and systems for EGR control
US9759135B2 (en) 2014-04-04 2017-09-12 Ford Global Technologies, Llc Method and system for engine control
JP6501380B2 (ja) * 2014-07-01 2019-04-17 三菱重工コンプレッサ株式会社 多段圧縮機システム、制御装置、異常判定方法及びプログラム
US9551276B2 (en) * 2014-08-14 2017-01-24 Ford Global Technologies, Llc Methods and systems for surge control
WO2016077559A1 (en) 2014-11-14 2016-05-19 Carrier Corporation On board chiller capacity calculation
RU2613758C2 (ru) * 2015-08-14 2017-03-21 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Способ защиты двухконтурного турбореактивного двигателя от помпажа при эксплуатации
US10254719B2 (en) 2015-09-18 2019-04-09 Statistics & Control, Inc. Method and apparatus for surge prevention control of multistage compressor having one surge valve and at least one flow measuring device
US11143056B2 (en) 2016-08-17 2021-10-12 General Electric Company System and method for gas turbine compressor cleaning
RU171843U1 (ru) * 2016-09-22 2017-06-19 Открытое акционерное общество "Севернефтегазпром" Компоновка вала центробежного компрессора
RU2638896C1 (ru) * 2017-03-14 2017-12-18 федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" Способ диагностики помпажа компрессора газотурбинного двигателя и устройство для его реализации
ES2905429T3 (es) * 2017-04-27 2022-04-08 Cryostar Sas Método para controlar un compresor de varias cámaras
US10590836B2 (en) * 2018-01-24 2020-03-17 Ford Global Technologies, Llc System and method for controlling surge margin in a boosted engine system
JP6952621B2 (ja) * 2018-02-26 2021-10-20 三菱重工コンプレッサ株式会社 性能評価方法、性能評価装置、及び性能評価システム
RU2713782C1 (ru) * 2019-01-09 2020-02-07 Акционерное общество "Инжиниринговая компания "АЭМ-технологии" (АО "АЭМ-технологии") Способ защиты центробежного нагнетателя от помпажа
JP7375024B2 (ja) * 2019-02-06 2023-11-07 コンプレッサー コントロールズ エルエルシー フィールド状態に基づいて圧縮機コントローラを適応させるためのシステム及び方法
GB201912322D0 (en) 2019-08-28 2019-10-09 Rolls Royce Plc Gas turbine engine flow control
CN111271303B (zh) * 2020-01-22 2021-01-01 西安陕鼓通风设备有限公司 一种油站电控系统、通风机组控制系统及控制方法
US11448088B2 (en) 2020-02-14 2022-09-20 Honeywell International Inc. Temperature inversion detection and mitigation strategies to avoid compressor surge
US11578727B2 (en) * 2020-09-17 2023-02-14 Compressor Controls Llc Methods and system for control of compressors with both variable speed and guide vanes position
CN112302987B (zh) * 2020-10-30 2022-07-15 中国航发沈阳发动机研究所 应对温度畸变的航空发动机压缩部件可调导叶调节方法
US11434917B1 (en) * 2021-07-13 2022-09-06 Roman Bershader Methodology and algorithms for protecting centrifugal and axial compressors from surge and choke
CN114562476B (zh) * 2021-12-24 2024-03-29 浙江中控技术股份有限公司 一种压缩机机组冷热回流的控制方法
CN114876846B (zh) * 2022-06-01 2024-03-26 西安陕鼓动力股份有限公司 一种离心压缩机组全自动恒压控制系统及控制方法
CN115929606B (zh) * 2023-02-15 2025-04-29 大连理工大学 一种空气压缩机喘振预防自抗扰控制方法
CN116658433A (zh) * 2023-05-22 2023-08-29 犇流泵业科技(嘉兴)股份有限公司 一种耐颗粒型磁力泵智能检测方法及系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428066A1 (de) * 1963-08-30 1968-11-28 Continental Elektro Ind Ag Grenzmengenregelung an Turboverdichtern
US3979655A (en) * 1975-03-31 1976-09-07 Compressor Controls Corporation Control system for controlling a dynamic compressor
US4046490A (en) * 1975-12-01 1977-09-06 Compressor Controls Corporation Method and apparatus for antisurge protection of a dynamic compressor
US4139328A (en) * 1977-05-25 1979-02-13 Gutehoffnungshitte Sterkrade Ag Method of operating large turbo compressors
US4164033A (en) * 1977-09-14 1979-08-07 Sundstrand Corporation Compressor surge control with airflow measurement
US4142838A (en) * 1977-12-01 1979-03-06 Compressor Controls Corporation Method and apparatus for preventing surge in a dynamic compressor
US4486142A (en) * 1977-12-01 1984-12-04 Naum Staroselsky Method of automatic limitation for a controlled variable in a multivariable system
US4355948A (en) * 1979-09-12 1982-10-26 Borg-Warner Corporation Adjustable surge and capacity control system
US4627788A (en) * 1984-08-20 1986-12-09 The Babcock & Wilcox Company Adaptive gain compressor surge control system
US4594050A (en) * 1984-05-14 1986-06-10 Dresser Industries, Inc. Apparatus and method for detecting surge in a turbo compressor
US4697980A (en) * 1984-08-20 1987-10-06 The Babcock & Wilcox Company Adaptive gain compressor surge control system
DE3540088A1 (de) * 1985-11-12 1987-05-14 Gutehoffnungshuette Man Verfahren zur erfassung von pumpstoessen an turbokompressoren
DE3544822A1 (de) * 1985-12-18 1987-06-19 Gutehoffnungshuette Man Verfahren zur pumpgrenzregelung von turbokomporessoren
DE3544821A1 (de) * 1985-12-18 1987-06-19 Gutehoffnungshuette Man Verfahren zum regeln von turbokompressoren zur vermeidung des pumpens
US4807150A (en) * 1986-10-02 1989-02-21 Phillips Petroleum Company Constraint control for a compressor system
US4781524A (en) * 1987-02-12 1988-11-01 Man Gutehoffnungshuette Gmbh Method and apparatus for detecting pressure surges in a turbo-compressor

Also Published As

Publication number Publication date
EP0500196A3 (en) 1992-10-21
ZA897281B (en) 1990-07-25
EP0500195A3 (en) 1992-10-14
NO174358B (no) 1994-01-10
ES2045411T3 (es) 1994-01-16
NO891239L (no) 1990-04-27
EP0366219A3 (en) 1990-12-12
DE68910467D1 (de) 1993-12-09
DE68916554T2 (de) 1994-10-20
EP0366219A2 (de) 1990-05-02
ES2056687T3 (es) 1994-10-01
NO891239D0 (no) 1989-03-21
EP0500195B1 (de) 1994-06-29
DE68910467T2 (de) 1994-06-01
CA1291737C (en) 1991-11-05
DE68916555D1 (de) 1994-08-04
DE68916555T2 (de) 1994-10-20
EP0500195A2 (de) 1992-08-26
EP0500196A2 (de) 1992-08-26
ES2056686T3 (es) 1994-10-01
EP0500196B1 (de) 1994-06-29
DE68916554D1 (de) 1994-08-04
US4949276A (en) 1990-08-14
EP0366219B1 (de) 1993-11-03

Similar Documents

Publication Publication Date Title
NO174358C (no) Fremgangsmåte for beskyttelse av en dynamisk kompressor mot sug
GB2262574B (en) A structural arm for the casing of a turbomachine
KR900010238A (ko) 스크롤 압축기
BR9200070A (pt) Coador a vacuo
BR8900003A (pt) Conjunto de compressor
GB2221743B (en) A mounting for machinery
BR8806951A (pt) Conjunto de compressor
GB2226603B (en) Turbomolecular vacuum pump
BR8806343A (pt) Conjunto compressor
AU7129091A (en) Silencer for a centrifugal compressor
AU4132889A (en) Compressor housing having a structure for preventing slippage of vibroisolating members
AU4296589A (en) Suction cleaner
AU3800989A (en) A hydrophone
IT1237891B (it) Filtro a ciclone
NO172510C (no) Sperrevaeske-tetningsanordning for akseltetning i en turbokompressor
FR2638084B3 (fr) Aspirateur
AU103973S (en) A vacuum cleaner
AU4009389A (en) Locking device, especially for a cover of a suction cleaner
ITMI910614A1 (it) Struttura copripale per un compressore centrifugo
FR2632361B1 (fr) Pompe turbomoleculaire a vide
BR9301032A (pt) Motor a vacuo
KR940011605U (ko) 진공 포장기
BR8805621A (pt) Embalagem a vacuo
KR900010946U (ko) 진공 청소기용 모터
DK540988D0 (da) Sugeapparat