Global Patent Index - EP 1030106 A2

EP 1030106 A2 2000-08-23 - Blue-flame burner with optimized combustion characteristics

Title (en)

Blue-flame burner with optimized combustion characteristics

Title (de)

Verbrennungsoptimierter Blaubrenner

Title (fr)

Bruleur à flamme bleue optimisant la combustion

Publication

EP 1030106 A2 (DE)

Application

EP 00111167 A

Priority

  • DE 4343430 A
  • DE 4430889 A
  • EP 95905077 A

Abstract (en)

The burner has a housing (10) with a flame tube (14) enclosing the combustion chamber (92) and behind this is an pre- combustion chamber (48) with a central nozzle assembly (24) from where the fuel stream broadens out within the combustion chamber. A dividing wall separates a fan in the pre-combustion chamber from the combustion chamber, the fan forcing sufficient air (102) through for approximately stoichiometric combustion with a blue flame. There is a second stream of combustion air (106) entering the chamber a short distance away from the first stream and radially outside it. Its purpose is to stabilise recirculation in the chamber.

Abstract (de)

Um einen Brenner für flüssige Medien umfassend ein Brennergehäuse (10, einen in einer Vorkammer (48) angeordneten Düsenstock (24) mit einer einen Brennstoffstrahl (80) erzeugenden Düse (28), eine Brennkammer (92) in welcher sich der Brennstoffstrahl ausbreitet, ein Trennelement (90) zwischen der Vorkammer und der Brennkammer, ein Gebläse (16) zur Erzeugung eines in die Brennkammer eintretenden Brennluftstroms, wobei der Brennstoff mit einer blaubrennenden Flamme im wesentlichen stöchiometrisch verbrennt, derart zu verbessern, daß eine möglichst schadstoffarme Verbrennung erfolgt, wird vorgeschlagen, daß in der Brennkammer zusätzlich zu einem brennstoffstrahlnahen Teilstrom (102) ein gegenüber diesem in definiertem Abstand radial außenliegender rezirkulationsstabilisierender Teilstrom (106) von Brennluft eintritt, daß sich in der Brennkammer eine innere Rezirkulationsströmung (112) ausbildet und daß der rezirkulationsstabilisierende Teilstrom der Brennluft die innere Rezirkulationsströmung stabilisiert. <IMAGE>

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

F23D 11/40; F23C 9/00; F23D 11/28

IPC 8 full level (invention and additional information)

F23C 9/00 (2006.01); F23D 11/28 (2006.01); F23D 11/40 (2006.01)

CPC (invention and additional information)

F23C 9/006 (2013.01); F23C 9/00 (2013.01); F23D 11/28 (2013.01); F23D 11/40 (2013.01); F23C 2202/40 (2013.01)

Citation (applicant)

Designated contracting state (EPC)

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

EPO simple patent family

DE 4430889 A1 19950706; DE 4430888 A1 19950706; EP 1030106 A2 20000823; EP 1030106 A3 20001122; EP 1030106 B1 20041124

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