Combustion – Mixer and flame holder
Patent
1996-11-22
1998-04-07
Dority, Carroll B.
Combustion
Mixer and flame holder
431185, 431182, 431183, 431115, F23D 1462
Patent
active
057356874
ABSTRACT:
In a burner which essentially comprises a swirl generator (100) for a combustion-air flow (115) and means for injecting a fuel into the combustion-air flow (115), a mixing section (220) is arranged downstream of the abovementioned swirl generator. This mixing section (220) has inside a first part (200) of the section a number of transition passages (201) which run in the direction of flow and ensure the smooth passing of the flow (40) formed in the swirl generator (100) into a tube (20) arranged downstream. The outlet plane of this tube (20) to the combustion chamber (30) is formed with a breakaway edge which serves to stabilize and enlarge a backflow zone (50) forming downstream.
REFERENCES:
patent: 2183596 (1939-12-01), Trinks
patent: 3905752 (1975-09-01), Miller
patent: 5251447 (1993-10-01), Joshi et al.
patent: 5588826 (1996-12-01), Dobbeling et al.
Knopfel Hans Peter
Ruck Thomas
ABB Research Ltd.
Dority Carroll B.
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