Global Patent Index - EP 0893651 B1

EP 0893651 B1 2002-11-20 - Burner for liquid and gaseous fuel with low nitric oxyde emission

Title (en)

Burner for liquid and gaseous fuel with low nitric oxyde emission

Title (de)

Brenner für flüssigen und gasförmigen Brennstoff mit niedriger Stickoxidemission

Title (fr)

Brûleurs à combustible liquide et gazeux à faible émission d'oxyde d'azote

Publication

EP 0893651 B1 (FR)

Application

EP 98430018 A

Priority

FR 9709594 A

Abstract (en)

[origin: EP0893651A1] The burner consists of a duct and a central feed port (4) with an inner flame stabiliser (5) and a secondary air feed port (13) situated outside a liquid fuel injector (8) and a primary air feed. The burner also incorporates a circuit for recirculating the fumes from the firebox (2) using the draught of the secondary air feed and reinjecting into the firebox through orifices (9) used for injecting the gas fuel and situated in a ring round the flame stabiliser. The injection orifices for the liquid and gas fuels and primary air feed open into a cavity (6) set inside a refractory wall (3) surrounding it and containing the secondary air feed ports. In addition, the liquid fuel injection system has multiple orifices to create a series of separate flames inside the firebox.

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

F23D 17/00; F23C 9/00

IPC 8 full level (invention and additional information)

F23C 9/00 (2006.01); F23D 17/00 (2006.01)

CPC (invention and additional information)

F23C 9/00 (2013.01); F23D 17/002 (2013.01); F23C 2202/20 (2013.01); F23C 2900/09002 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

EP 0893651 A1 19990127; EP 0893651 B1 20021120; DE 69809502 D1 20030102; DE 69809502 T2 20030717; FR 2766557 A1 19990129; FR 2766557 B1 19991022

INPADOC legal status


2015-05-21 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 69809502

- Effective date: 20150203

2015-04-30 [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: 20150203

2015-02-03 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 69809502

2013-11-29 [PGRI IT] POSTGRANT: PATENT REINSTATED IN CONTRACTING STATE

- Ref Country Code: IT

- Effective date: 20110616

2013-10-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20130717

- Year of fee payment: 16

2011-07-29 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20090728

- Year of fee payment: 12

2011-07-29 [PGRI IT] POSTGRANT: PATENT REINSTATED IN CONTRACTING STATE

- Ref Country Code: IT

- Effective date: 20110616

2011-05-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

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

- Effective date: 20100802

2011-04-22 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20110331

2011-03-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

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

- Effective date: 20090710

2009-10-30 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20090731

- Year of fee payment: 12

2003-11-12 [26N] NO OPPOSITION FILED

- Effective date: 20030821

2003-05-29 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030529

2003-05-21 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20021120

2003-01-02 [REF] CORRESPONDS TO:

- Document: DE 69809502 20030102

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE ES FR GB IT

2002-11-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: RO PAYMENT 19990927

2002-11-20 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2002-11-20 [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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20021120

2001-05-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010329

1999-12-08 [RAX] REQUESTED EXTENSION STATES OF THE EUROPEAN PATENT HAVE CHANGED

- Free text: RO PAYMENT 19990927

1999-11-24 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE ES FR GB IT

1999-10-06 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE ES GB IT

1999-08-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990630

1999-01-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT

1999-01-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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