EP0043017A1 - Guide vanes variation means for a radial compressor - Google Patents

Guide vanes variation means for a radial compressor Download PDF

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Publication number
EP0043017A1
EP0043017A1 EP81104538A EP81104538A EP0043017A1 EP 0043017 A1 EP0043017 A1 EP 0043017A1 EP 81104538 A EP81104538 A EP 81104538A EP 81104538 A EP81104538 A EP 81104538A EP 0043017 A1 EP0043017 A1 EP 0043017A1
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EP
European Patent Office
Prior art keywords
guide vanes
ring
adjusting
adjustable
vane
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.)
Withdrawn
Application number
EP81104538A
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German (de)
French (fr)
Inventor
Klaus Dr. Ing. Saalfeld
Albin Viertler
Widu Dr. Ing. Wittekindt
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of EP0043017A1 publication Critical patent/EP0043017A1/en
Withdrawn legal-status Critical Current

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to a device for adjusting the ring-shaped pivotable diffuser guide vanes of a radial turbo compressor, the guide vanes each having a crown pin parallel to the crown axis and are rotatably mounted about this pin in the housing and handlebar levers are arranged on the blade pin and are pivotally connected to an adjusting ring rotatably mounted on the housing are.
  • the operating range for turbocompressors is defined by two limits with regard to the volume to be pumped. As the volume flow increases, the so-called swallowing limit is reached at some point, and when the volume flow drops, the turbo compressor reaches the so-called instability limit, at which the compressor begins to pump and controlled operation is no longer possible. This is made even more difficult when it comes to turbo-compressors that require a high pressure ratio. In an effort to expand the operating range of the individual compressors as much as possible, a wide variety of solutions have been developed to shift the instability limit.
  • the invention has for its object to find a control in a radial pressure compressor having a high pressure ratio, which allows the passage of a large range of different volume flows at constant pressure and constant efficiency.
  • This adjustable multiple guide device allows the optimum adjustment of the operating range of the radial turbo compressor to the required values in a simple manner, namely through the free adjustability of the individual guide devices with respect to one another, the different aerodynamic adjustment laws of the individual guide devices being taken into account by different articulation radii. It is not necessary to dismantle the machine. Furthermore, the individual radial compressor stages can thus be precisely adapted to one another. Surprisingly, practical tests with the control device according to the invention showed an approximately 40% increase in the stable working range at the instability limit. A corresponding radial turbo compressor with an adjustable inlet guide served as a basis for comparison.
  • an embodiment of the invention provides that the individual actuating rings of two steps standing back to back are adjustable with respect to one another and connected to one another in a rotationally fixed manner. An individually adjustable and reliably functioning control device has thus become possible.
  • the invention is illustrated using an exemplary embodiment and is described in more detail below.
  • the two radial impellers 2, 3 with the impeller rear sides are arranged on a common shaft 1.
  • the impellers 2, 3 are followed by diffuser vanes 4, 5, with a blade journal 6, 7 being attached in each of their first flowed thirds, around which the diffuser vanes can be pivoted and with which they are mounted in the housing 8.
  • adjustable control levers 9 are attached, which are movably connected to adjusting rings 10, 11 which are rotatably attached to the housing 8.
  • the adjusting ring 10 is firmly connected to an actuating ring 12 which ensures the synchronous adjustment, while the adjusting ring 11 is adjustably connected to the actuating ring 12.
  • the radial turbo compressor can be set precisely for the respective operating conditions.
  • a central servo drive 13 enables a synchronous adjustment in a simple manner with simultaneous individual adjustability of all control devices. It is no problem to take into account the different adjustment laws of the individual guide devices by appropriately dimensioning the handlebar levers or the adjusting rings.

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  • 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

The invention relates to a device for adjusting rotatable diffusor guide vanes 4, 5, arranged in the form of a ring, of a radial turbocompressor, the diffusor guide vanes 4, 5 each exhibiting a vane pin 6, 7 parallel to the axis of the ring and being supported rotatable about these pins 6, 7 in the casing 8 and being arranged at the vane pin control lever 9, which are pivotably connected to an adjusting ring 10, 11 supported rotatably at the casing 8. The radial turbocompressor has several stages. The rotors 2, 3 of two mutually adjacent stages in each case are arranged with the rear sides of the rotors facing one another. Each stage exhibits adjustable diffusor guide vanes 4, 5, the vane pins 6, 7 being attached in the first third of the diffusor guide vane 4, 5 facing the flow. The adjusting rings 10, 11 of the stages arranged with the rear sides of the rotors facing one another are adjustably connected to an operating ring 12. Thus, all diffusor guide vanes 4, 5 are synchronously adjustable, in which arrangement the adjustment can be controlled by a servo drive 13. This results in a control which allows operation within a wide range of different volume flows with constant pressure and largely constant efficiency. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Verstellen von kranzförmig angeordneten schwenkbaren Diffusorleitschaufeln eines Radialturbokompressors, wobei die Leitschaufeln je einen kranzachsparallelen Schaufelzapfen aufweisen und um diesen Zapfen drehbar im Gehäuse gelagert sind und an dem Schaufelzapfen Lenkerhebel angeordnet sind, die mit einem am Gehäuse drehbar gelagerten Stellring schwenkbar verbunden sind.The invention relates to a device for adjusting the ring-shaped pivotable diffuser guide vanes of a radial turbo compressor, the guide vanes each having a crown pin parallel to the crown axis and are rotatably mounted about this pin in the housing and handlebar levers are arranged on the blade pin and are pivotally connected to an adjusting ring rotatably mounted on the housing are.

Unabhängig von der Bauart wird bei Turbokompressoren der Betriebsbereich in bezug auf das zu fördernde Volumen durch zwei Grenzen festgelegt. Bei größer werdendem Volumenstrom stellt sich irgendwann die sog. Schluckgrenze ein und bei abfallendem Volumenstrom erreicht der Turbokompressor die sog. Instabilitätsgrenze, bei der der Kompressor zu pumpen anfängt und ein geregelter Betrieb nicht mehr möglich ist. Dies wird noch erschwert, wenn es sich um Turbokompressoren handelt, denen ein hohes Druckverhältnis abverlangt wird. In dem Bestreben, den jeweiligen Betriebsbereich der einzelnen Kompressoren so weit wie möglich auszudehnen, sind zur Verlagerung der Instabilitätsgrenze die unterschiedlichsten Lösungen entwickelt worden.Regardless of the design, the operating range for turbocompressors is defined by two limits with regard to the volume to be pumped. As the volume flow increases, the so-called swallowing limit is reached at some point, and when the volume flow drops, the turbo compressor reaches the so-called instability limit, at which the compressor begins to pump and controlled operation is no longer possible. This is made even more difficult when it comes to turbo-compressors that require a high pressure ratio. In an effort to expand the operating range of the individual compressors as much as possible, a wide variety of solutions have been developed to shift the instability limit.

Dies reicht von der Drehzahlregelung über die unwirtschaftliche Abblaseregelung bis hin zu den aerodynamischen Maß- nahmen in Form von verstellbaren, vor dem Laufrad angeordneten Eintrittsleitapparaten. Letztere weisen zwar den Vorteil eines weiten Regelbereiches bei sehr guten Wirkungsgraden auf, sie bedingen jedoch, insbesondere bei mehrstufigen Verdichtern, einen wesentlich erhöhten konstruktiven und apparativen Aufwand. Z. B. ist es bei den in der Luftfahrt Anwendung findenden Axialverdichtern relativ leicht, die Leitschaufeln mehrerer Stufen zu verstellen. Dies ist auch noch bei einstufigen Radialverdichtern möglich. Es erfordert jedoch bei mehrstufigen Radialverdichtern einen nicht mehr vertretbaren Aufwand, weshalb hier vor dem Verdichter Drosselorgane zur Dichteabsenkung erfolgreich eingesetzt werden.This ranges from the speed control on the wasteful blow-off to the aerodynamic M ASA participated in the form of adjustable front of the impeller arranged Eintrittsleitapparaten. The latter have the advantage of a wide control range with very good efficiencies, but they require, in particular in the case of multi-stage compressors, a considerably increased design and apparatus complexity. For example, in the case of the axial compressors used in aviation, it is relatively easy to adjust the guide vanes in several stages. This is still possible with single-stage radial compressors. However, in the case of multi-stage radial compressors, this effort is no longer justifiable, which is why throttling elements are used successfully in front of the compressor to lower the density.

Der Erfindung liegt die Aufgabe zugrunde, bei einem ein hohes Druckverhältnis aufweisenden Radialturbokompressor eine Regelung zu finden, die bei konstantem Druck und möglichst konstantem Wirkungsgrad das Durchfahren eines großen Bereiches unterschiedlicher Volumenströme gestattet.The invention has for its object to find a control in a radial pressure compressor having a high pressure ratio, which allows the passage of a large range of different volume flows at constant pressure and constant efficiency.

Die Lösung dieser Aufgabe sieht vor, daß bei einem mehrstufigen Radialturbokompressor die Laufräder zweier einander benachbarter Stufen jeweils mit den Laufradrückseiten zueinander angeordnet sind (back-to-back-Prinzip), daß jede Stufe verstellbare Diffusorleitschaufeln aufweist, wobei die Schaufelzapfen im ersten Drittel der angeströmten Diffusorleitschaufel angebracht sind, daß die Stellringe der mit den Laufradrückseiten zueinander angeordneten Stufen mit einem Betätigungsring einstellbar verbunden sind und daß alle Diffusorleitschaufeln synchron verstellbar sind und von einem Servoantrieb gesteuert werden.The solution to this problem provides that in a multi-stage radial turbo compressor, the impellers of two adjacent stages are each arranged with the impeller backs to one another (back-to-back principle), that each stage has adjustable diffuser vanes, the blade journals in the first third of the flow Diffuser guide vane are attached that the collars of the stages arranged with the impeller backs to each other an actuating ring are adjustably connected and that all diffuser vanes are synchronously adjustable and controlled by a servo drive.

Dieser verstellbare Mehrfachleitapparat ermöglicht in einfacher Weise die jeweils optimale Anpassung des Betriebsbereiches des Radialturbokompressors an geforderte Werte, und zwar durch die freie Einstellbarkeit der einzelnen Nachleitapparate zueinander, wobei die unterschiedlichen aerodynamischen Verstellgesetze der einzelnen Nachleitapparate durch unterschiedliche Anlenkradien berücksichtigt werden. Eine Demontage der Maschine ist dazu nicht erforderlich. Desweiteren können somit die einzelnen Radialverdichterstufen einander genau angepaßt werden. Praktische Versuche mit der erfindungsgemäßen Regeleinrichtung zeigten überraschender- i weise eine ungefähr 40%ige Vergrößerung des stabilen Arbeits- bereiches an der Instabilitätsgrenze. Als Vergleichsgrundlage diente ein entsprechender Radialturbokompressor mit verstellbarem Eintrittsleitapparat.This adjustable multiple guide device allows the optimum adjustment of the operating range of the radial turbo compressor to the required values in a simple manner, namely through the free adjustability of the individual guide devices with respect to one another, the different aerodynamic adjustment laws of the individual guide devices being taken into account by different articulation radii. It is not necessary to dismantle the machine. Furthermore, the individual radial compressor stages can thus be precisely adapted to one another. Surprisingly, practical tests with the control device according to the invention showed an approximately 40% increase in the stable working range at the instability limit. A corresponding radial turbo compressor with an adjustable inlet guide served as a basis for comparison.

Zur Verbesserung der Anpaßbarkeit eines derartigen Radialturboverdichters sieht eine Ausgestaltung der Erfindung vor, daß die einzelnen Betätigungsringe von jeweils zwei Rücken an Rücken stehenden Stufen zueinander einstellbar und miteinander drehfest verbunden sind. Somit ist eine individuell einstellbare und zuverlässig funktionierende Regeleinrichtung möglich geworden.In order to improve the adaptability of such a radial turbocompressor, an embodiment of the invention provides that the individual actuating rings of two steps standing back to back are adjustable with respect to one another and connected to one another in a rotationally fixed manner. An individually adjustable and reliably functioning control device has thus become possible.

Zur Erlangung eines nahezu konstanten Wirkungsgrades über einen sehr weiten Kennfeldbereich sieht eine andere Ausgestaltung der Erfindung vor, daß bei den verwendeten Laufrädern der Laufradaustrittswinkel im Bereich von 90 0 liegt.To obtain a nearly constant efficiency over a wide performance range provides another embodiment of the invention is that at the used impellers of the impeller outlet angle in the range of 90 0 is located.

Die Erfindung ist an einem Ausführungsbeispiel dargestellt und wird im folgenden näher beschrieben. Bei dem hier gewählten zweistufigen Radialkompressor sind auf einer gemeinsamen Welle 1 die beiden Radiallaufräder 2, 3 mit den Laufradrückseiten zueinander angeordnet. Den Laufrädern 2, 3 sind Diffusorleitschaufeln 4, 5 nachgeschaltet, wobei in deren ersten angeströmten Drittel je ein Schaufelzapfen 6, 7 angebracht ist, um den die Diffusorleitschaufeln schwenkbar sind und mit dem sie im Gehäuse 8 gelagert sind. An den Schaufelzapfen 6, 7 wiederum sind einstellbare Lenkerhebel 9 angebracht, die beweglich mit drehbar am Gehäuse 8 befestigten Stellringen 10, 11 verbunden sind. Z. B. ist hier der Stellring 10 mit einem die synchrone Verstellung sichernden Betätigungsring 12 fest verbunden, während der Stellring 11 einstellbar mit dem Betätigungsring 12 verbunden ist. Mittels dieser Maßnahmen kann der Radialturbokompressor für die jeweiligen Betriebsbedingungen genau eingestellt werden. Ein zentraler Servoantrieb 13 ermöglicht in einfacher Weise eine synchrone Verstellung bei gleichzeitiger individueller Einstellbarkeit aller Leitapparate. Es bereitet keinerlei Probleme, die unterschiedlichen Verstellgesetze der einzelnen Leitapparate durch entsprechende Dimensionierung der Lenkerhebel bzw. der Stellringe zu berücksichtigen.The invention is illustrated using an exemplary embodiment and is described in more detail below. In the two-stage radial compressor chosen here, the two radial impellers 2, 3 with the impeller rear sides are arranged on a common shaft 1. The impellers 2, 3 are followed by diffuser vanes 4, 5, with a blade journal 6, 7 being attached in each of their first flowed thirds, around which the diffuser vanes can be pivoted and with which they are mounted in the housing 8. On the blade journals 6, 7, in turn, adjustable control levers 9 are attached, which are movably connected to adjusting rings 10, 11 which are rotatably attached to the housing 8. For example, the adjusting ring 10 is firmly connected to an actuating ring 12 which ensures the synchronous adjustment, while the adjusting ring 11 is adjustably connected to the actuating ring 12. By means of these measures, the radial turbo compressor can be set precisely for the respective operating conditions. A central servo drive 13 enables a synchronous adjustment in a simple manner with simultaneous individual adjustability of all control devices. It is no problem to take into account the different adjustment laws of the individual guide devices by appropriately dimensioning the handlebar levers or the adjusting rings.

Claims (3)

1. Vorrichtung zum Verstellen von kranzförmig angeordneten schwenkbaren Diffusorleitschaufeln eines Radialturbokompressors, wobei die Diffusorleitschaufeln je einen kranzachsparallelen Schaufelzapfen aufweisen und um diesen Zapfen drehbar im Gehäuse gelagert sind und an dem Schaufelzapfen Lenkerhebel angeordnet sind, die mit einem am Gehäuse drehbar gelagerten Stellring schwenkbar verbunden sind, dadurch gekennzeichnet, a) daß bei einem mehrstufigen Radialturbokompressor die Laufräder (2, 3) zweier einander benachbarter Stufen jeweils mit den Laufradrückseiten zueinander angeordnet sind, b) daß jede Stufe verstellbare Diffusorleitschaufeln (4, 5) aufweist, wobei die Schaufelzapfen (6, 7) im ersten Drittel der angeströmten Diffusorleitschaufel (4, 5) angebracht sind, c) daß die Stellringe (10, 11) der mit den Laufradrückseiten zueinander angeordneten Stufen mit einem Betätigungsring (12) einstellbar verbunden sind und d) daß alle Diffusorleitschaufeln (4, 5) synchron verstellbar sind und von einem Servoantrieb (13) gesteuert werden. 1. Device for adjusting the ring-shaped pivotable diffuser guide vanes of a radial turbo compressor, the diffuser guide vanes each having a crown pin parallel to the crown axis and are rotatably mounted in the housing about this pin and handlebar levers are arranged on the blade pin, which are pivotably connected to an adjusting ring rotatably mounted on the housing. characterized, a) that in a multi-stage radial turbo compressor, the impellers (2, 3) of two mutually adjacent stages are each arranged with the impeller backs to one another, b) that each stage has adjustable diffuser vanes (4, 5), the vane pegs (6, 7) being fitted in the first third of the flowed-on diffuser vanes (4, 5), c) that the adjusting rings (10, 11) of the stages arranged with the impeller rear sides to one another are adjustably connected with an actuating ring (12) and d) that all diffuser vanes (4, 5) are synchronously adjustable and controlled by a servo drive (13). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Betätigungsringe (12) von jeweils zwei Rücken an Rücken stehenden Stufen zueinander einstellbar und miteinander drehfest verbunden sind.2. Device according to claim 1, characterized in that the individual actuating rings (12) of two back-to-back steps are mutually adjustable and rotatably connected to each other. 3. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß bei den verwendeten Laufrädern (2, 3) der Laufradaustrittswinkel im Bereich von 90 0 liegt.3. Device according to claims 1 and 2, characterized in that the impeller outlet angle is in the range of 90 0 for the impellers used (2, 3).
EP81104538A 1980-06-25 1981-06-12 Guide vanes variation means for a radial compressor Withdrawn EP0043017A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3023705 1980-06-25
DE19803023705 DE3023705A1 (en) 1980-06-25 1980-06-25 GUIDE ADJUSTMENT DEVICE ON RADIAL TURBO COMPRESSORS

Publications (1)

Publication Number Publication Date
EP0043017A1 true EP0043017A1 (en) 1982-01-06

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ID=6105396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104538A Withdrawn EP0043017A1 (en) 1980-06-25 1981-06-12 Guide vanes variation means for a radial compressor

Country Status (6)

Country Link
EP (1) EP0043017A1 (en)
JP (1) JPS5744800A (en)
BR (1) BR8103981A (en)
DE (1) DE3023705A1 (en)
DK (1) DK277781A (en)
ES (1) ES8204085A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058533A1 (en) * 1981-02-16 1982-08-25 Mitsubishi Jukogyo Kabushiki Kaisha Variable diffuser device in a centrifugal compressor
GB2183302A (en) * 1985-10-24 1987-06-03 Household Mfg Inc Turbocharger with variable guide vanes
DE3722253A1 (en) * 1987-07-06 1989-01-26 Kuehnle Kopp Kausch Ag ADJUSTING DEVICE OF A RADIAL COMPRESSOR
WO2005028877A2 (en) * 2003-09-12 2005-03-31 Honeywell International Inc. Turbocharger comprising a compresser having two back-to-back impellers
DE4435280B4 (en) * 1994-10-01 2005-04-14 Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Guidance device for a hermetic, radial turbo compressor
EP2505849A1 (en) * 2011-03-28 2012-10-03 Siemens Aktiengesellschaft Method and system for energy optimization of a centrifugal compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377202A (en) * 1931-04-20 1932-07-20 British Thomson Houston Co Ltd Improvements in or relating to air or gas compressors
CH371857A (en) * 1959-10-20 1963-09-15 Bbc Brown Boveri & Cie Blade adjustment device on turbo machine
DE1428161A1 (en) * 1962-07-24 1969-01-30 Gutehoffnungshuette Sterkrade Multi-stage centrifugal compressor
CH503899A (en) * 1970-02-26 1971-02-28 Vevey Atel Const Mec Hydraulic machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333525C3 (en) * 1973-07-02 1975-11-27 Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Hydraulic guide vane adjustment device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377202A (en) * 1931-04-20 1932-07-20 British Thomson Houston Co Ltd Improvements in or relating to air or gas compressors
CH371857A (en) * 1959-10-20 1963-09-15 Bbc Brown Boveri & Cie Blade adjustment device on turbo machine
DE1428161A1 (en) * 1962-07-24 1969-01-30 Gutehoffnungshuette Sterkrade Multi-stage centrifugal compressor
CH503899A (en) * 1970-02-26 1971-02-28 Vevey Atel Const Mec Hydraulic machine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058533A1 (en) * 1981-02-16 1982-08-25 Mitsubishi Jukogyo Kabushiki Kaisha Variable diffuser device in a centrifugal compressor
GB2183302A (en) * 1985-10-24 1987-06-03 Household Mfg Inc Turbocharger with variable guide vanes
GB2183302B (en) * 1985-10-24 1990-07-04 Household Mfg Inc Turbocharger with variable vanes
DE3722253A1 (en) * 1987-07-06 1989-01-26 Kuehnle Kopp Kausch Ag ADJUSTING DEVICE OF A RADIAL COMPRESSOR
US4836747A (en) * 1987-07-06 1989-06-06 Aktiengesellschaft Kuehnle, Kopp & Kausch Adjusting device for a compressor
EP0299280B1 (en) * 1987-07-06 1991-03-20 A.G. Kühnle, Kopp &amp; Kausch Adjusting apparatus of a compressor
DE4435280B4 (en) * 1994-10-01 2005-04-14 Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Guidance device for a hermetic, radial turbo compressor
WO2005028877A2 (en) * 2003-09-12 2005-03-31 Honeywell International Inc. Turbocharger comprising a compresser having two back-to-back impellers
WO2005028877A3 (en) * 2003-09-12 2005-05-12 Honeywell Int Inc Turbocharger comprising a compresser having two back-to-back impellers
US6948314B2 (en) 2003-09-12 2005-09-27 Honeywell International, Inc. High response, compact turbocharger
US7461507B2 (en) 2003-09-12 2008-12-09 Honeywell International, Inc. High response compact turbocharger
US7950227B2 (en) 2003-09-12 2011-05-31 Honeywell International Inc. High response compact turbocharger
EP2505849A1 (en) * 2011-03-28 2012-10-03 Siemens Aktiengesellschaft Method and system for energy optimization of a centrifugal compressor

Also Published As

Publication number Publication date
DE3023705A1 (en) 1982-05-19
BR8103981A (en) 1982-03-09
DK277781A (en) 1981-12-26
ES503331A0 (en) 1982-05-01
JPS5744800A (en) 1982-03-13
ES8204085A1 (en) 1982-05-01

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