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Publication Title | United States Patent Willis et al. MULTI-STAGE MULTI-PLANE COMBUSTION SYSTEM FOR A GAS TURBINE ENGINE

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Text | United States Patent Willis et al. MULTI-STAGE MULTI-PLANE COMBUSTION SYSTEM FOR A GAS TURBINE ENGINE | 001



(12)United States Patent Willis et al.

(54) MULTI-STAGE MULTI-PLANE COMBUSTION SYSTEM FOR A GAS TURBINE ENGINE

(75) Inventors: Je?'eryW.Willis,Lexington,KY (US); .

(10)PatentN0.2 US 6,453,658B1 (45) Date of Patent: Sep. 24, 2002

(73) Assignee: (*) Notice:

(US), Benjamin E. Toby, Sierra Madre, CA (Us); Robert D- McKelrnan, Jr» Westlake Vlllage, CA (US)

Capstone Turbine Corporation, ChatsWorth, CA (US)

Subject to any disclaimer, the term of this Patent is extended or adjusted under 35

4,285,193 A 4,433,540 A 4,470,262 A 4,509,333 A 4,586,328 A 4,638,636 A 4,698,963 A 4,726,181 A

8/1981 Shaw etaL 2/1984 Cornelius6161. 9/1984 Shekleton 4/1985 Nussdorfer 5/1986 Howald 1/1987 Cohen

10/1987 Taylor 2/1988 Pillsbury

141‘; glaédaetal'~"60/733 e orso

1/1990 Skekleton6161.

10/1978 Flanaganeta1‘ 12/1979 Fauchereta1.

GuillermoPont,LosAngeles,CA

_.. . ,, /1980Buchherm

U'S'C' 154(k)) by 0 days‘ (21) Appl.No.:09/512,986

(Listcontinuedonnextpage.) FOREIGNPATENTDOCUMENTS

0 445 652 A1 9/1991

(22)

Filed: Feb.24,2000

(58)

(56)

FieldofSearch..60/39.36,746, 60/734, 733, 749, 737

References Cited U.S. PATENT DOCUMENTS

Int. Cl.7 ..F02C 3/00; F23R 3/34

EP

(51)

(52) I ..60/3936; 60/746

Primary Examiner p/?chael KOCZO (74)Attorney)Agent)OrFirm_steme,Kessler,Goldstein & FOX PLLC

(57) ABSTRACT

A loW emissions combustion system With a plurality of

tangential fuel injectors to introduce a fuel/air mixture at the

-- combustor dome end of an annular combustion chamber in

.. ..

tWo spaced injector planes. Each of the spaced injector

planes includes multiple tangential fuel injectors delivering premixedfuelandairintotheannularcombustor.A gener allyskirt-shaped?ow controlbaffleextendsfromthetapered inner liner into the annular combustion chamber doWn streamofthefuelinjectorplanes.A pluralityofairdilution holesinthetaperedinnerlinerunderneaththeHow control

1,826,776 A

1,874,970 A 2,593,849 A

2829494 A 2,946,185 A 2,982,099 A 3,691,762 A 3,765,171 A 37797231 A

10/1931 Gunther

8/1932 Hall

4/1952 Clarkeeta1‘

4/1958 Christensen 7/196O Bayer 5/1961 Carlisleeta1. 9/1972 Rybergeta1.

10/1973 Hagenet91- 3/1974 McLean

2 1; gfe?erle

,,urgess ......

3,893,297 A 3 895 488 A

379737390 A

4,007,002 A 4,019,316 A

7/1975 Tatem’Jr‘eta1‘ 7/1975 Koch

8/1976 Jeroszko

2/1977 Schirmer 4/1977 Pfefferle

26

chamber While another 'plurality of air dilution holes in the cylindrical outer liner introduces more dilution air doWn

stream from the How control baffle.

63 Claims, 5 Drawing Sheets

4,040,252 A 4,044,553 A 4,065,917 A 4,112,675 A

8/1977 Mosiereta1. 8/1977 Vaught 1/1978 Pfefferle 9/1978 Pillsburyeta1.

US006453658B1

4’118’171 A

4,179,881 A

4192139A 3 .

2 4,891,936 A

,,

bafle introduce dilution air into the annular combustion

Image | United States Patent Willis et al. MULTI-STAGE MULTI-PLANE COMBUSTION SYSTEM FOR A GAS TURBINE ENGINE



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