Title:
【発明の名称】高ターンダウン比を有する予混合ガスバーナ
Document Type and Number:
Japanese Patent JP2994793
Kind Code:
B2
Abstract:
High turn down ratio burner, comprising a burner housing (1) having a connection (2) for a combustible gas/air mixture and a substantially tubular mixture passage (3) leading to a constricted burner throat or mouth (4), via which passage the burner is connectable to a combustion chamber (7) which is part of a heat exchanger (6) or forms a flue passage leading to such heat exchanger, further comprising a flame arrester (8), which is a flashback preventer, in the form of a porous, gas/air mixture-permeable hollow body covering the entire flow-through area towards the burner throat (4) and arranged with its concave side towards the burner throat (4), at a short distance upstream thereof, a number of constricted auxiliary gas passages (9) being arranged around the burner throat.
Inventors:
Goeco van der Fern
Application Number:
JP14353791A
Publication Date:
December 27, 1999
Filing Date:
June 14, 1991
Export Citation:
Assignee:
Gastech N. Fau.
International Classes:
F23D14/02; F23D14/26; F23D14/82; (IPC1-7): F23D14/82; F23D14/02
Domestic Patent References:
| JP2169907A |
Other References:
【文献】米国特許3352347(US,A)
【文献】米国特許2992459(US,A)
【文献】米国特許2992459(US,A)
Attorney, Agent or Firm:
Nishikyo Keiichiro