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Publication Title | UnitedStatesPatent 191 Williseta]. CATALYTIC COMBUSTION SYSTEM

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UnitedStatesPatent 191 Williseta].

[54] CATALYTIC COMBUSTION SYSTEM

[75] Inventors: JelfreyW.Willis,LosAngeles;James E.Belmont,CanogaPark,bothof

Calm

[1] PatentNumber: [45] DateofPatent:

5,685,156 Nov. 11, 1997

.

[73] Assrgnee: CapstoneTurbineCorporation,

Tmana-Cahf-

21 A l.N .:650625 l 1 PP O !

[22] Filed: May20,1996

[51] Int.Cl.‘ ..F02C 1/00 [52] US. Cl. .. 60/723; 6089.511; 60/760 [58] FieldofSearch .60/39511.723,

4,433,540 2/1984 Corneliuseta1.. 4,509,333 4/1985 Nussdorfereta].. 4,726,131 2/1933 Pillsbury

4,787,208 11/1988 DeCorso.

5,000,004 3/1991 Yarnanakaeta1. ..431/7

5,079,911 1/19W Kumakuta .. (SO/39.511

5,161,366 11/1992 B be. 5,412,938 5,1995 $181,I

5,440,872 8/1995Pfelfede. 5,452,574 9/1995 Cowelletal..

Primary Examiner—Cha1'lcs G. Freay Attorney, Agent, or F irnr-Albert J. Miller

[57] ABSTRACT

Th . . . dir d a1 . b . sysiefrrf?‘jillll‘gvimgz‘zubizzmcngni‘1335533232: annular catalytic combustor. The annular catalytic combus

tor includes a_pre-burner/pre-mixcr which functions as a pre-burnerdunng startnpandasapre-mixerforthefueland air during catalytic operation. This pre-burnerlpre-mixer includes a plurality of primary tangential air-fuel venturis each having a fuel injector. and a plurality of secondary

P99291931 air ‘mum’? h_°1es- “costumer/premix? is JOIHCdtotheannularin-lmecatalyticcanisterbyatransltion section which includes a plurality of tertiary air dilution holeswhichintroduceairradiallyintothetransitionsection fromtheinnerlinerthereof.Thein-lineannularcatalyst canisterincludesalargepluralityofmicrolithcatalystele mentspositionedbetweensupporttingsandheldattheopen

[56]

60/754’ 760’ 3932; 431/2‘ 6' 7‘ 12‘ 170 Refenmces Cited

US. PATENT DOCUMENTS .

3,765,171 10/1973 Hageneta1. .(so/39.511 3,797‘231 3/1974McLean_

3,846,979 11/1974 Pfe?‘erle.

3,895,488 7/1975 Koch.

3973390 8/1976Jeroszko- 4,019,316 4/1977Pfe?e?e-

gifzz‘ift31'‘

4l1l2i675 9/1978 Pillsburyeta1...431/6

4,118,171 10/1978 Flanaganeta1.. 4,285,193 8/1981 Shaweta]..

“a matedby‘1mummy of“ppm spokes‘ 18Claims,2DrawingSheets

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Image | UnitedStatesPatent 191 Williseta]. CATALYTIC COMBUSTION SYSTEM



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