Premix gas burner having a high turn down ratio

Details Premix gas burner having a high turn down ratio Premix gas burner having a high turn down ratio

1991-06-14

1992-03-24

Dority, Carroll B.

Combustion

Flash-back controlling or preventing structure

431158, 431266, 431349, F23D 1482

Patent

active

050982842

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.

REFERENCES:
patent: 2880792 (1959-04-01), Raskin
patent: 2992459 (1961-07-01), Campbell
patent: 3035632 (1962-05-01), Ericsson

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