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Publication Title | United States PatentApplicationPublication (10)Pub.N0.:US2002/0104316A1

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US 20020104316A1

(19)United States

(12)PatentApplicationPublication (10)Pub.N0.:US2002/0104316A1

Dickey et al.

(54) ULTRALOWEMISSIONSGASTURBINE CYCLE USING VARIABLE COMBUSTION PRIMARY ZONE AIRFLOW CONTROL

(75) Inventors: BrianDickey,SimiValley,CA(US); Guillermo Pont, Los Angeles, CA (US)

CorrespondenceAddress: OBLONSPIVAKMCCLELLANDMAIER& NEUSTADT PC

FOURTH FLOOR

1755 JEFFERSON DAVIS HIGHWAY ARLINGTON, VA 22202 (US)

(73) Assignee: CAPSTONE TURBINE CORPORA TION, 21211 Nordhoff Street, Chat

(43) Pub. Date: Aug. 8, 2002

RelatedUS.ApplicationData

(60) ProvisionalapplicationNo.60/245,808,?ledonNov. 3,2000.

Publication Classi?cation

(51) Int. Cl? ...F02C 7/00 (52) Us.01...60/772;60/752

(57) ABSTRACT

A systemandmethodresultinginabalancedminimization of detrimental hydrocarbon, CO and NOX emissions by regulating the air to fuel ratio in a combustor. The turbo generator system includes a recuperator Which separates air ?oW into a primary passage and a dilution passage. A combustor is connected to the recuperator. The cumbustor has a primary Zone and a dilution Zone. A controlled air valveisdisposedintheair?oW suchthatairtofuelratioin the primary Zone of the combustor is regulated at a prede terminedlevelWhichminimizestheemissions.

(21) Appl.No.: (22) Filed:

sWorth, CA 91311 (US) 09/985,667

Nov.5,2001

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