Global Patent Index - EP 1026369 A1

EP 1026369 A1 2000-08-09 - Steam turbine

Title (en)

Steam turbine

Title (de)

Dampfturbine

Title (fr)

Turbine à vapeur

Publication

EP 1026369 A1 (DE)

Application

EP 99810092 A

Priority

EP 99810092 A

Abstract (en)

Steam turbines with or without regulation stage are built with the same amount of control valves (8, 9) for the steam inlet, and respectively two control valves are preferably provided. The valve assembly group (7), the outer turbine casing (1), and parts of the inner turbine casing (2) are built constructively equal, and can be used for steam turbines with or without regulation stage. The inner casing is equipped with integrated nozzle boxes (15,16) separated through partitions (17 18), in case of a steam turbine with regulation stage, and nozzle boxes and partitions are missing in steam turbines without regulation stage. An Independent claim is included for manufacturing an outer casing of steam turbine.

Abstract (de)

Dampfturbinen mit oder ohne Regelstufe werden mit der gleichen Anzahl Regelventilen (8, 9) gebaut. Vorzugsweise sind jeweils zwei Regelventile vorhanden. Die Ventilbaugruppe (7), das Turbinenaussengehäuse (1) und Teile des Turbineninnengehäuses (2) werden konstruktiv gleich gebaut und können für Dampfturbinen mit oder ohne Regelstufe verwendet werden. Bei der dargestellten Dampfturbine mit Regelstufe ist das Innengehäuse mit integrierten Düsenkästen (15, 16) versehen, die durch Zwischenwände (17, 18) voneinander getrennt sind. Bei einer Dampfturbine ohne Regelstufe fehlen die Düsenkästen und dementsprechend auch die Zwischenwände (17, 18). <IMAGE>

IPC 1-7 (main, further and additional classification)

F01D 25/24

IPC 8 full level (invention and additional information)

F01D 25/24 (2006.01); F01D 25/26 (2006.01)

CPC (invention and additional information)

F01D 25/24 (2013.01); F05D 2230/61 (2013.01); Y10S 415/915 (2013.01)

Citation (applicant)

None

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1026369 A1 20000809; EP 1026369 B1 20031203; DE 59907932 D1 20040115; JP 2000227007 A 20000815; US 6302644 B1 20011016

INPADOC legal status


2005-12-02 [REG FR ST] NOTIFICATION OF LAPSE

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2005-10-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-09-21 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20050204

2005-09-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2004-08-13 [ET] FR: TRANSLATION FILED

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2004-01-15 [REF] CORRESPONDS TO:

- Document: DE 59907932 P 20040115

2004-01-14 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: ALSTOM TECHNOLOGY LTD

2003-12-03 [AK] DESIGNATED CONTRACTING STATES:

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2003-12-03 [REG GB FG4D] EUROPEAN PATENT GRANTED

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2003-08-13 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM (SWITZERLAND) LTD

2003-07-09 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM (SCHWEIZ) AG

2003-03-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030127

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2001-04-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM POWER (SCHWEIZ) AG

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010116

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2000-08-09 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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