EP2211022A1 - Inlet volute of a steam turbine and steam turbine - Google Patents

Inlet volute of a steam turbine and steam turbine Download PDF

Info

Publication number
EP2211022A1
EP2211022A1 EP09000798A EP09000798A EP2211022A1 EP 2211022 A1 EP2211022 A1 EP 2211022A1 EP 09000798 A EP09000798 A EP 09000798A EP 09000798 A EP09000798 A EP 09000798A EP 2211022 A1 EP2211022 A1 EP 2211022A1
Authority
EP
European Patent Office
Prior art keywords
inlet volute
steam turbine
inlet
volute
parts
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Withdrawn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
EP09000798A
Other languages
German (de)
French (fr)
Inventor
Per Hortlund
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP09000798A priority Critical patent/EP2211022A1/en
Publication of EP2211022A1 publication Critical patent/EP2211022A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026—Scrolls for radial machines or engines
    • 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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/243—Flange connections; Bolting arrangements
    • 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
    • F01D9/00—Stators
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • 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
    • F05D2250/51—Inlet

Definitions

  • the present invention relates to an inlet volute of a steam turbine, whereby the inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, whereby the inlet volute is arranged inside an outer casing of the steam turbine and whereby the inlet volute is split along a split plane in two parts which are being fixed together to build the inlet volute.
  • the invention relates further to a steam turbine comprising at least one inlet volute, which is arranged inside an outer casing of the steam turbine, whereby the at least one inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis.
  • the inlet volute of a steam turbine supplies steam evenly over the circumference of a turbine stage, leading to aerodynamic efficiency.
  • the inlet volute for even steam distribution to the first inlet stage protect the outer turbine casing from very hot inlet steam.
  • a single inlet volume provides optimal performance for combined-cycle sliding pressure operation.
  • the inlet volute is surrounded by the outer turbine casing.
  • the dimension of the outer casing is therefore dependent from the size and form of the inlet volute.
  • Known inlet volutes comprise to parts which are fixed together at a horizontal split plane. Horizontal means the direction of the split plane relating to the axis of the rotor device of the steam turbine.
  • the problem to be solved by the present invention is to keep the dimension of an inlet volute, which consists of two parts, of a steam turbine and the size of the outer casing of the steam turbine, in which the inlet volute is arranged, small.
  • a steam turbine should be established, whereby the dimension of the steam turbine can be kept small.
  • an inlet volute of a steam turbine whereby the inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, whereby the inlet volute is arranged inside an outer casing of the steam turbine whereby the inlet volute is split along a split plane in two parts which are being fixed together to build the inlet volute, and whereby the split plane of the two parts of the inlet volute is inclined relating to the axis of the rotor device of the steam turbine.
  • the core of the invention is the specific location and arrangement of the split plane of the two parts of the inlet volute.
  • the split plane is inclined with regard to the extension of the axis of the rotor of the steam turbine. This enables that the dimension of the inlet volute inside the outer casing of the steam turbine can be kept relatively small.
  • the fixation of the two parts can be made along the inclined split plane and therefore the fixating devices, like bolts, can be placed at an inconsiderable position. That means the fixation of the two parts of the inlet volute is been made at a position, in which the fixation does not enlarge the dimension of the inlet volute inside the outer turbine casing.
  • Inclined means that the split plane is arranged in an angle between 0° and 90° regarding the axis of the rotor of the steam turbine.
  • the outer casing of the steam turbine can be kept small because the fixating devices of the inlet volute are arranged at a position, where they do not influence the form of the outer casing. Because of keeping the dimensions of the volute down it is possible to save size on the outer turbine casing.
  • the arrangement of the split plane of the two parts of the inlet volute and therefore the position of the fixating devices to fix both parts together enable that there is no need of extra space for the split plane fixating devices, like split plane bolts. An inlet volute like this can save space to keep the dimensions of the outer casing down.
  • the split plane of the inlet volute is inclined with an angle between 20° to 70°, in particular between 40° to 50°, relating to the axis of the steam turbine.
  • the arrangement of the split plane in such a way allows that the outer casing of the steam turbine can be arranged vertically and horizontally as near as possible next to the inlet volute, because the fixation of the two parts of the inlet volute is arranged at the split plane.
  • an inlet volute is preferred where the plane of the inlet volute is inclined with an angle of 45° in regard to the axis of the steam turbine.
  • the two parts of the inlet volute can be fixed together by different fixating devices.
  • the two parts of the inlet volute are fixed together by bolts or screws, respectively.
  • the fixation could be made by a clamp-connection or a welded-connection, as well.
  • the two parts of the inlet volute comprise in a preferred embodiment bore holes for passing through bolts.
  • the inlet volute comprises a fixating device for fixation at the outer casing of the steam turbine.
  • the fixating device can comprise a bore hole, a clamp-connection or a welded-connection.
  • a steam turbine comprising at least one inlet volute, which is arranged inside an outer casing of the steam turbine, whereby the at least one inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, and whereby the inlet volute is being built according to the first aspect of the invention.
  • a steam turbine having such an inlet volute can have smaller outer dimensions, because the outer turbine casing can be kept smaller, then the known outer turbine casing.
  • the outer casing can be arranged very close to the casing of the inlet volute in vertically and horizontally direction, because the fixating devices are placed in the area between the vertically and horizontally direction of the inlet volute.
  • the inclined split plane enables the arrangement of the fixating devices, like bolts, to mount the two parts of the inlet volute together, in an inconspicuous place.
  • the inlet volute is preferred fixed at the outer turbine casing by means of a fixating device, like a bolded-connection.
  • the steam turbine is preferably a low-pressure steam turbine.
  • Fig. 1 shows an inlet volute 1 which is divided into a first 4 and a second part 5.
  • the two parts 4, 5 are mounted to each other at the split plane 3.
  • the split plane 3 is inclined in regard to the direction of the axis 6 of a not shown rotor device of the steam turbine.
  • the angle ⁇ has preferably a value between 40° and 50°.
  • the two parts 4, 5 are fixed to each other by fixating devices 8.
  • the fixating devices 8 are bolts.
  • the advantage of such an inlet volute 1 is that because of the specific arrangement of the split plane 3 und therefore of the fixating devices 8, the inlet volute 1 can be build very small, especially in the horizontal and vertical direction.
  • the fixating devices 8 are placed at a very in inconspicuous position.
  • the outer casing which surrounds the inlet volute 1
  • the outer casing which surrounds the inlet volute 1
  • the special arrangement of the split plane 3 and therefore of the fixating devices 8 can save space to keep the dimensions of the outer turbine casing 2 down.
  • Between the two parts 4, 5 of the inlet volute 1 can be a special sealing.
  • the inlet volute 1 supplies steam 7 evenly over the circumference of the first turbine stage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The invention relates to an inlet volute (1) of a steam turbine, whereby the inlet volute (1) supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis (6), whereby the inlet volute is arranged inside an outer casing (2) of the steam turbine and whereby the inlet volute (1) is split along a split plane (3) in two parts (4, 5) which are being fixed together to build the inlet volute (1), and whereby the split plane (3) of the two parts (4, 5) of the inlet volute (1) is inclined relating to the axis (6) of the rotor device of the steam turbine. The invention relates further to a steam turbine, comprising at least one inlet volute (1), which is arranged inside an outer casing (2) of the steam turbine, whereby the at least one inlet volute (1) supplies steam (7) to blades which are fixed at a rotor device which is rotatably mounted around an axis (6), whereby the inlet volute (1) is being built like this.

Description

  • The present invention relates to an inlet volute of a steam turbine, whereby the inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, whereby the inlet volute is arranged inside an outer casing of the steam turbine and whereby the inlet volute is split along a split plane in two parts which are being fixed together to build the inlet volute. The invention relates further to a steam turbine comprising at least one inlet volute, which is arranged inside an outer casing of the steam turbine, whereby the at least one inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis.
  • The inlet volute of a steam turbine supplies steam evenly over the circumference of a turbine stage, leading to aerodynamic efficiency. The inlet volute for even steam distribution to the first inlet stage protect the outer turbine casing from very hot inlet steam. A single inlet volume provides optimal performance for combined-cycle sliding pressure operation.
  • The inlet volute is surrounded by the outer turbine casing. The dimension of the outer casing is therefore dependent from the size and form of the inlet volute. Known inlet volutes comprise to parts which are fixed together at a horizontal split plane. Horizontal means the direction of the split plane relating to the axis of the rotor device of the steam turbine.
  • The problem to be solved by the present invention is to keep the dimension of an inlet volute, which consists of two parts, of a steam turbine and the size of the outer casing of the steam turbine, in which the inlet volute is arranged, small. In particular a steam turbine should be established, whereby the dimension of the steam turbine can be kept small.
  • The problems of the invention are solved by an inlet volute with the features according to claim 1 and by a steam turbine with the features according to claim 5. Advantages, features, details, aspects and effects of the invention arise from the dependent claims, the description and the figure. Features and details which are described in connection with the inlet volute count as well for the steam turbine, and vice versa.
  • According to a first aspect of the present invention the problem is solved by an inlet volute of a steam turbine, whereby the inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, whereby the inlet volute is arranged inside an outer casing of the steam turbine whereby the inlet volute is split along a split plane in two parts which are being fixed together to build the inlet volute, and whereby the split plane of the two parts of the inlet volute is inclined relating to the axis of the rotor device of the steam turbine.
  • The core of the invention is the specific location and arrangement of the split plane of the two parts of the inlet volute. The split plane is inclined with regard to the extension of the axis of the rotor of the steam turbine. This enables that the dimension of the inlet volute inside the outer casing of the steam turbine can be kept relatively small. The fixation of the two parts can be made along the inclined split plane and therefore the fixating devices, like bolts, can be placed at an inconsiderable position. That means the fixation of the two parts of the inlet volute is been made at a position, in which the fixation does not enlarge the dimension of the inlet volute inside the outer turbine casing. Inclined means that the split plane is arranged in an angle between 0° and 90° regarding the axis of the rotor of the steam turbine. The outer casing of the steam turbine can be kept small because the fixating devices of the inlet volute are arranged at a position, where they do not influence the form of the outer casing. Because of keeping the dimensions of the volute down it is possible to save size on the outer turbine casing. The arrangement of the split plane of the two parts of the inlet volute and therefore the position of the fixating devices to fix both parts together enable that there is no need of extra space for the split plane fixating devices, like split plane bolts. An inlet volute like this can save space to keep the dimensions of the outer casing down.
  • In a preferred embodiment the split plane of the inlet volute is inclined with an angle between 20° to 70°, in particular between 40° to 50°, relating to the axis of the steam turbine. The arrangement of the split plane in such a way allows that the outer casing of the steam turbine can be arranged vertically and horizontally as near as possible next to the inlet volute, because the fixation of the two parts of the inlet volute is arranged at the split plane. Exceptionally an inlet volute is preferred where the plane of the inlet volute is inclined with an angle of 45° in regard to the axis of the steam turbine.
  • The two parts of the inlet volute can be fixed together by different fixating devices. In a preferred embodiment of the inlet volute the two parts of the inlet volute are fixed together by bolts or screws, respectively. The fixation could be made by a clamp-connection or a welded-connection, as well. The two parts of the inlet volute comprise in a preferred embodiment bore holes for passing through bolts.
  • Preferred is further an embodiment of the inlet volute, whereby at least one part of the inlet volute comprises a fixating device for fixation at the outer casing of the steam turbine. This enables that the inlet volute can be fixed at the outer turbine casing. The fixating device can comprise a bore hole, a clamp-connection or a welded-connection.
  • According to a second aspect of the present invention the problem is solved by a steam turbine, comprising at least one inlet volute, which is arranged inside an outer casing of the steam turbine, whereby the at least one inlet volute supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis, and whereby the inlet volute is being built according to the first aspect of the invention. A steam turbine having such an inlet volute can have smaller outer dimensions, because the outer turbine casing can be kept smaller, then the known outer turbine casing. The outer casing can be arranged very close to the casing of the inlet volute in vertically and horizontally direction, because the fixating devices are placed in the area between the vertically and horizontally direction of the inlet volute. The inclined split plane enables the arrangement of the fixating devices, like bolts, to mount the two parts of the inlet volute together, in an inconspicuous place.
  • Preferred is a steam turbine, whereby at least one part of the at least one inlet volute is fixed at the outer casing of the steam turbine. This allows to positioning of the inlet volute inside the steam turbine. The inlet volute is preferred fixed at the outer turbine casing by means of a fixating device, like a bolded-connection.
  • The steam turbine is preferably a low-pressure steam turbine.
  • The invention will now be described again in detail with reference to the enclosed figure, wherein:
    • Figure 1 shows an inlet volute.
  • Fig. 1 shows an inlet volute 1 which is divided into a first 4 and a second part 5. The two parts 4, 5 are mounted to each other at the split plane 3. The split plane 3 is inclined in regard to the direction of the axis 6 of a not shown rotor device of the steam turbine. The angle α has preferably a value between 40° and 50°. The two parts 4, 5 are fixed to each other by fixating devices 8. In this embodiment the fixating devices 8 are bolts. The advantage of such an inlet volute 1 is that because of the specific arrangement of the split plane 3 und therefore of the fixating devices 8, the inlet volute 1 can be build very small, especially in the horizontal and vertical direction. The fixating devices 8 are placed at a very in inconspicuous position. Because of the possibility to build the inlet volute 1 with small dimensions, the outer casing, which surrounds the inlet volute 1, can be small, as well. The special arrangement of the split plane 3 and therefore of the fixating devices 8 can save space to keep the dimensions of the outer turbine casing 2 down. Between the two parts 4, 5 of the inlet volute 1 can be a special sealing. The inlet volute 1 supplies steam 7 evenly over the circumference of the first turbine stage.

Claims (6)

  1. Inlet volute (1) of a steam turbine, whereby the inlet volute (1) supplies steam to blades which are fixed at a rotor device which is rotatably mounted around an axis (6), whereby the inlet volute is arranged inside an outer casing (2) of the steam turbine and whereby the inlet volute (1) is split along a split plane (3) in two parts (4, 5) which are being fixed together to build the inlet volute (1), characterized in that the split plane (3) of the two parts (4, 5) of the inlet volute (1) is inclined relating to the axis (6) of the rotor device of the steam turbine.
  2. Inlet volute (1) according to claim 1, characterized in that the split plane (3) is inclined with an angle α between 20° to 70°, in particular between 40° to 50°, relating to the axis (6) of the steam turbine.
  3. Inlet volute (1) according to claim 1 or 2, characterized in that the two parts (4, 5) of the inlet volute (1) are fixed together by fixating devices (8).
  4. Inlet volute (1) according to one of the claims 1 to 3, characterized in that at least one part (4, 5) of the inlet volute (1) comprises a fixating device for fixation at the outer casing (2) of the steam turbine.
  5. Steam turbine, comprising at least one inlet volute (1), which is arranged inside an outer casing (2) of the steam turbine, whereby the at least one inlet volute (1) supplies steam (7) to blades which are fixed at a rotor device which is rotatably mounted around an axis (6), characterized in that the inlet volute (1) is being built according to one of the claims 1 to 4.
  6. Steam turbine according to claim 5, characterized in that at least one part (4, 5) of the at least one inlet volute (1) is fixed at the outer casing (2) of the steam turbine.
EP09000798A 2009-01-21 2009-01-21 Inlet volute of a steam turbine and steam turbine Withdrawn EP2211022A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09000798A EP2211022A1 (en) 2009-01-21 2009-01-21 Inlet volute of a steam turbine and steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09000798A EP2211022A1 (en) 2009-01-21 2009-01-21 Inlet volute of a steam turbine and steam turbine

Publications (1)

Publication Number Publication Date
EP2211022A1 true EP2211022A1 (en) 2010-07-28

Family

ID=40934896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000798A Withdrawn EP2211022A1 (en) 2009-01-21 2009-01-21 Inlet volute of a steam turbine and steam turbine

Country Status (1)

Country Link
EP (1) EP2211022A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103769541A (en) * 2014-01-23 2014-05-07 中国人民解放军总参谋部第六十研究所 Volute center mold-splitting forming method and forming tooling
CN108928013A (en) * 2018-07-12 2018-12-04 台州市中冠模业有限公司 A kind of variable cross-section shaped spiral housing mold
CN109268074A (en) * 2018-07-19 2019-01-25 哈尔滨汽轮机厂有限责任公司 A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing
CN111140360A (en) * 2019-11-27 2020-05-12 西安航天动力研究所 Gas turbine guide pipe and forming method thereof
CN112922678A (en) * 2021-02-03 2021-06-08 东方电气集团东方汽轮机有限公司 Steam inlet chamber for axial steam outlet of steam turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295223A1 (en) * 1974-12-16 1976-07-16 Bbc Brown Boveri & Cie THERMAL TURBOMACHINE, IN PARTICULAR LOW PRESSURE STEAM TURBINE
EP0128343A1 (en) * 1983-06-09 1984-12-19 BBC Aktiengesellschaft Brown, Boveri & Cie. Double casing turbine with at least one valve for the horizontal supply of steam
EP1033478A2 (en) * 1999-03-02 2000-09-06 ABB Alstom Power (Schweiz) AG Casing for thermal turbomachine
JP2005315122A (en) * 2004-04-27 2005-11-10 Toshiba Corp Steam turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295223A1 (en) * 1974-12-16 1976-07-16 Bbc Brown Boveri & Cie THERMAL TURBOMACHINE, IN PARTICULAR LOW PRESSURE STEAM TURBINE
EP0128343A1 (en) * 1983-06-09 1984-12-19 BBC Aktiengesellschaft Brown, Boveri & Cie. Double casing turbine with at least one valve for the horizontal supply of steam
EP1033478A2 (en) * 1999-03-02 2000-09-06 ABB Alstom Power (Schweiz) AG Casing for thermal turbomachine
JP2005315122A (en) * 2004-04-27 2005-11-10 Toshiba Corp Steam turbine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103769541A (en) * 2014-01-23 2014-05-07 中国人民解放军总参谋部第六十研究所 Volute center mold-splitting forming method and forming tooling
CN103769541B (en) * 2014-01-23 2017-02-01 中国人民解放军总参谋部第六十研究所 Volute center mold-splitting forming method and forming tooling
CN108928013A (en) * 2018-07-12 2018-12-04 台州市中冠模业有限公司 A kind of variable cross-section shaped spiral housing mold
CN108928013B (en) * 2018-07-12 2023-12-01 台州市中冠模业有限公司 Variable cross-section spiral shell mould
CN109268074A (en) * 2018-07-19 2019-01-25 哈尔滨汽轮机厂有限责任公司 A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing
CN111140360A (en) * 2019-11-27 2020-05-12 西安航天动力研究所 Gas turbine guide pipe and forming method thereof
CN112922678A (en) * 2021-02-03 2021-06-08 东方电气集团东方汽轮机有限公司 Steam inlet chamber for axial steam outlet of steam turbine

Similar Documents

Publication Publication Date Title
EP2211022A1 (en) Inlet volute of a steam turbine and steam turbine
US8083471B2 (en) Turbine rotor support apparatus and system
JP5331715B2 (en) Gas turbine, exhaust diffuser, and gas turbine plant modification method
RU2013152735A (en) CASE COOLING CHANNEL
US8616831B2 (en) Simplified housing for a fuel cell compressor
EP1820936A3 (en) Gas turbine engine rotor ventilation arrangement
EP2080876A3 (en) A turbomachine system and turbine therefor
WO2008084563A1 (en) Blade structure for gas turbine
WO2011080047A3 (en) Mid-span gas bearing
EP3121449B1 (en) Subsea centrifugal compressor with horizontal shaft and with only one axial thrust bearing
EP2423510A3 (en) Turbomachine with mixed-flow stage and method
WO2009138581A3 (en) Rotor for the compressor of a turbine engine comprising a centripetal air-collecting means
NO20083746L (en) Compressor Unit
CN105298915B (en) Compressor assembly for gas turbine
CN101372897A (en) Steam turbine
CN104520592A (en) Centrifugal compressor impeller cooling
CA2606580A1 (en) Improved inlet plenum for gas turbine engine
KR20150089032A (en) Compressor wheel of a radial compressor of an exhaust-gas turbocharger
EP3406904B1 (en) Centrifugal compression test device
EP1956215A3 (en) Gas turbine engine with insulated cooling circuit
CN101688510B (en) Hydroelectric power plant
CN106133275A (en) Compressor with a compressor housing having a plurality of compressor blades
US10746178B2 (en) Drainage apparatus for a motorcompressor
US9541095B2 (en) Housing of a radial compressor
EP2295766A3 (en) Combined-cycle steam turbine having novel steam cooling flow configuration

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

AKY No designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: R108

Effective date: 20110309

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110129