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Search Completed | Title | Umted States Patent [19] Willisetal. LOW EMISSIONS COMBUSTION SYSTEM FORAGASTURBINEENGINEEMPLOYING FLAME STABILIZATION WITHIN THE INJECTOR TUBE
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Text | Umted States Patent [19] Willisetal. LOW EMISSIONS COMBUSTION SYSTEM FORAGASTURBINEENGINEEMPLOYING FLAME STABILIZATION WITHIN THE INJECTOR TUBE | 001 Umted States Patent [19] Willisetal. [54] LOW EMISSIONS COMBUSTION SYSTEM FORAGASTURBINEENGINEEMPLOYING FLAME STABILIZATION WITHIN THE INJECTOR TUBE [75] Inventors:Je?'reyW.Willis;GuillermoPont, both of Los Angeles', Bruce L. Alder, Jr.,Agoura, alofCalif. [73] Asslgneez gsrgztg’leczlggbmecorporatmn’ [21] Appl‘No‘:09/168399 [22] Filed; Oct 7,1998 Related Us. Application Data [62] DivisionofapplicationNo.08/855,210,May 13,1997,Pat. No. 5,850,732. [51] Int.(:1.6.F23R3/20;F23R3/54 [52] US.(:1...60139.06;60/740;60/749 [58] FieldofSearch .60/39.06,39.36, 6089511’ 737’ 738’ 740’ 749 [1] PatentNumber: 5,894,720 [45] DateofPatent: Apr.20,1999 5,592,819 1/1997 Ansarteta1...60/737 5,752,380 5/1998Bosleyetal. .60/39281 5,850,732 12/1998 Williseta1. ..60/39.36 Primary Examiner-Charles G. Freay AssistantExaminerwTedKim Attorney, Agent, or Fi1m_A1bert J.Miller [57] ABSTRACT A low emissions combustion system for a gas turbine engine, including a generally annular combustor with a plurality of tangential fuel injectors to introduce a fuel/air mixture.Theannularcombustorincludesaskirtshaped?ow control baf?e from the inner liner and air dilution holes in theinnerlinerunderneaththe?ow controlbaftleandalsoin thecylindricalouterliner.The fuelinjectorsextendthrough the recuperator housing and into the combustor through an angled tube and then through a tangential guide in the cylindrical outer liner of the combustor housing. The fuel injectorsgenerally°°mP?seanebngatedinject“tubewith Fhe(“wandincludinga°°“P1erhavingatleast‘mefuel mlet tube‘ ‘Impressed c°mbusti°n air is Provided to the interior of the elongated injector tube from either holes or slits therein which receive compressed air from the angled tube around the fuel injector which is open to the space between the recuperator housing and the combustor. Flame stabilization occurs outside the injector tube at full power and ?ashback occurs such the ?ame stabilization occurs ---- “mmthe“new”tubeatlowPwer‘ 18 Claims, 12 Drawing Sheets . [5 1 Re emnces cued 6f U.S. PATENT DOCUMENTS 2,982,099 5/1961 Carlisle et al. ........................... 60/749 4,192,139 3/1980Buchheim........ ...t.60/746 5,054,280 10/1991 Ishibashieta] 60/749 5,321,948 6/1994 Leonard ..601737 I US005894720A

Image | Umted States Patent [19] Willisetal. LOW EMISSIONS COMBUSTION SYSTEM FORAGASTURBINEENGINEEMPLOYING FLAME STABILIZATION WITHIN THE INJECTOR TUBE