Global Patent Index - EP 1046862 A1

EP 1046862 A1 2000-10-25 - Burner with helicoidal path for combustion products

Title (en)

Burner with helicoidal path for combustion products

Title (de)

Brenner mit wendelförmigen Strömungsweg für Verbrennungsprodukte

Title (fr)

Brûleur avec chemin de circulation helicoidal pour les produits de combustion

Publication

EP 1046862 A1 (EN)

Application

EP 00850063 A

Priority

SE 9901433 A

Abstract (en)

Combustion gases and residue formed during combustion are conducted in and passed out from the burner (1) in a direction (A), coinciding with the burner pipe (2) center axis and afterwards are conveyed in a general second direction (B), back along the outer side of the burner while emitting heat to a surrounding heat absorbing medium. The combustion gases at the same time as they are redirected 180[deg] are subjected to a helical motion around the outer side of the burner pipe by means of an outer helix (3) fixed to its outer circumference. The combustion residue after having left the burner, are conveyed back along the outer side of the burner pipe in the general second direction through rotation of the burner pipe and the outer helix forming a feed screw. Independent claims are included for a combustion installation, and a burner for solid fuel consisting of a burner pipe.

The invention relates to a method of discharging products of combustion from a burner pipe (2) of a solid fuel burner (1), whereby combustion gases formed during combustion are passed in and out from the burner pipe in a first direction (A), substantially coinciding with the center axis (C) of the burner pipe, wherein the combustion gases after having left the burner pipe (2) are redirected substantially 180 DEG and are subjected to a helical movement around the outer side of the burner pipe (2) while at the same time being conveyed back in a general second direction (B) along the outer side of the burner pipe (2), simultaneously emitting heat to a surrounding heat absorbing medium. <IMAGE>

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

F23G 7/10; F23B 1/32; F23B 1/34; F23J 1/00

IPC 8 full level (invention and additional information)

F23G 7/10 (2006.01); F23J 1/00 (2006.01)

CPC (invention and additional information)

F23B 1/34 (2013.01); F23B 1/32 (2013.01); F23G 7/10 (2013.01); F23J 1/00 (2013.01); F23G 2203/801 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1046862 A1 20001025; SE 513953 C2 20001204; SE 9901433 D0 19990421; SE 9901433 L 20001022

INPADOC legal status


2005-02-23 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040819

2003-11-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030930

2001-07-18 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-06-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010425

2000-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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