Global Patent Index - EP 1004821 A1

EP 1004821 A1 2000-05-31 - Device for pulverising liquid fuel for a combustion plant

Title (en)

Device for pulverising liquid fuel for a combustion plant

Title (de)

Vorrichtung zur Zerstäubung flüssigen Brennstoffs für eine Feuerungsanlage

Title (fr)

Dispositif de pulvérisation du combustible liquide pour un appareil de combustion

Publication

EP 1004821 A1 (DE)

Application

EP 99811040 A

Priority

DE 19854382 A

Abstract (en)

Preferably for the combustion chamber of a gas turbine installation, the device atomises liquid fuel, with liquid fuel passing under pressure through a nozzle arrangement, where it is atomised to form a spray. The nozzle arrangement has separate outlet apertures (3) so directed that the fuel sprays (5,6) emitted from them collide. The nozzle arrangement has a slot nozzle with an enclosed aperture (10) surrounded by a deflectior device which deflects an emitted fuel spray so that it convergently runs together in a narrowly limited volume area (7). The nozzle aperture is circular so that the spray (14) is formed as a hollow cone running to a point.

Abstract (de)

Beschrieben wird ein Verfahren sowie eine Vorrichtung zur Zerstäubung flüssigen Brennstoffs für eine Feuerungsanlage, vorzugsweise für eine Brennkammer einer Gasturbinenanlage, mit einer Düsenanordnung, durch die der flüssige Brennstoff druckbeaufschlagt hindurchtritt und zu einem Brennstoffspray zerstäubt wird. Die Erfindung zeichnet sich dadurch aus, daß nach Durchtritt des Brennstoffes durch die Düsenanordnung (3, 4) wenigstens zwei, räumlich getrennte Brennstoffsprays (5, 6) gebildet werden, in denen der Brennstoff vorwiegend in Form einzelner Brennstofftröpfchen (16) vorliegt, und daß die Brennstoffsprays (5, 6) jeweils eine Ausbreitungsrichtung zueinander aufweisen, so daß die Brennstofftröpfchen (16) eines Brennstoffsprays (5) mit den Brennstofftröpfchen (16) des anderen Brennstoffsprays (6) kollidieren, so daß bei der Kollision der Brennstofftröpfchen (16) eine Tröpfchenwolke (9) mit neuen Brennstofftröpfchen (17) gebildet wird, deren Durchmesser kleiner als der der kollidierenden Brennstofftröpfchen (16) ist. <IMAGE>

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

F23D 11/24; B05B 1/26

IPC 8 full level (invention and additional information)

B05B 1/26 (2006.01); F23D 11/24 (2006.01); F23R 3/28 (2006.01)

CPC (invention and additional information)

B05B 1/26 (2013.01); F23D 11/24 (2013.01); F23R 3/28 (2013.01); F23C 2900/07002 (2013.01); F23D 2900/11002 (2013.01)

Citation (applicant)

EP 0321809 B1 19910515

Citation (search report)

Designated contracting state (EPC)

DE GB

EPO simple patent family

EP 1004821 A1 20000531; EP 1004821 B1 20050406; DE 19854382 A1 20000531; DE 19854382 B4 20090102; EP 1564486 A2 20050817; EP 1564486 A3 20060517; US 6360971 B1 20020326

INPADOC legal status


2010-12-31 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20091111

2010-11-30 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20100601

2010-07-28 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20091111

2009-06-30 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20081117

- Year of fee payment: 10

2009-01-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20081121

- Year of fee payment: 10

2006-03-29 [26N] NO OPPOSITION FILED

- Effective date: 20060110

2005-10-19 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20050926

2005-05-12 [REF] CORRESPONDS TO:

- Document: DE 59911869 P 20050512

2005-04-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE GB

2005-04-06 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2005-04-06 [RTI1] TITLE (CORRECTION)

- Free text: DEVICE FOR PULVERISING LIQUID FUEL FOR A COMBUSTION PLANT

2004-03-31 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM TECHNOLOGY LTD

2002-11-27 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM (SWITZERLAND) LTD

2002-09-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020812

2002-01-02 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALSTOM

2001-02-14 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE GB

2000-11-22 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ABB (SCHWEIZ) AG

2000-11-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000920

2000-05-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE GB

2000-05-31 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI