Combustion – Combustion products return structure – Recirculation about mixing or combustion chamber wall or baffle
Patent
1993-11-19
1995-11-14
Dority, Carroll B.
Combustion
Combustion products return structure
Recirculation about mixing or combustion chamber wall or baffle
431174, F23L 700
Patent
active
054661480
ABSTRACT:
The invention relates to a combustor, such as a burner or a cylinder of an engine with internal combustion, where combustion fluid passing through a slit (2,3; 6,7; 8,9; 11,12; 21,23; 31; 36,37; 39; 45; 48,49; 54; 61; 70,71,73,78; 96'; 109,110; 81; 124; 128), which may be straight as well as ring-shaped, is ignited in a space which allows for the development of turbulence. Said development of turbulence is caused by providing that bD/.nu.>1000, and preferably >2000, where b represents the width of the slit, D the distance between two consecutive slits or the width of the space and .nu. the kinematic viscosity of the supplied combustion air. In accordance with further embodiments of the invention, guiding members are placed to sustain said turbulences and/or to feed combustion gases back to the ejected peel-shaped jet. Thus a very low NOx value is obtained and it is likewise possible to construct a stable burner with a very wide adjustment range.
REFERENCES:
patent: 2515845 (1947-05-01), Vandenbussche
patent: 3754393 (1973-08-01), Handa
patent: 3869244 (1975-03-01), Von Linde et al.
patent: 4150539 (1979-04-01), Rubins
patent: 5350293 (1994-09-01), Khinkis et al.
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