Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Reexamination Certificate
2007-02-13
2007-02-13
Price, Carl D. (Department: 3749)
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
C431S009000, C431S159000, C431S181000, C431S187000, C431S348000, C431S350000
Reexamination Certificate
active
10111637
ABSTRACT:
An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), which injects fuel into the burner throat (40). Primary air jets (20) are configured to inject primary air into a primary combustion region (24), which is normally in the burner throat (40). A dish with a dish surface (28) is connected to the burner throat (40); the dish surface (28) extending in a divergent angle with respect to a burner centerline (35). Secondary air jets (34) are connected to the air passageway (14) and extend through the port block (42). The secondary air jets (34) inject secondary air into a secondary combustion region (38), which may be at the dish surface (28) or the hot face (30) of the burner.
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Tomio Suzuki et al., “Low-Nox Combustion under High Preheated Air Temperature Condition in an Industrial Furnace”, Japanese Flame Research Committee, 1996 (pp. 1-18).
Osamu Takahashi et al., “Development of High Speed Jet Type Low Nox Gas Burner”, Osaka, Japan (pp. 1-11).
Baggley Glenn W.
Dormire John C.
Fennell Anthony G.
Hemmerlin John R.
Pisano Stephen P.
Bloom Engineering Company, Inc.
Price Carl D.
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