Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1996-12-11
1999-08-24
Price, Carl D.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431185, 431187, 431266, F23C 700
Patent
active
059416980
ABSTRACT:
An apparatus and method for establishing a stable pilot flame at a wide range of operating conditions, having a main fuel tube, an outer tube concentrically enclosing the main fuel tube, a swirler located downstream from the outer tube, an ignitor, and several fuel manifold tubes connected to the main fuel tube, are disclosed. The fuel manifold tubes direct a portion of the pilot gas fuel stream radially outward from the remainder of the pilot fuel. The axial momentum of the radially displaced fuel stream is greater than the average axial momentum of the remainder of the pilot gas streams. This relationship between the axial momenta of the gas steams promotes flame recirculation and stabilizes the pilot flame over a wide range of operating conditions.
REFERENCES:
patent: 2668592 (1954-02-01), Piros
patent: 3418060 (1968-12-01), Speilman et al.
patent: 5090897 (1992-02-01), Christenson
patent: 5199265 (1993-04-01), Borkowicz
patent: 5361586 (1994-11-01), McWhirter
patent: 5452574 (1995-09-01), Cowell et al.
patent: 5487274 (1996-01-01), Gulati et al.
Darling Douglas Dean
Ryan William Richard
Price Carl D.
Siemens Westinghouse Power Corporation
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