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(12)United States Patent Greim et a]. (54) TURBINE (75) Inventors: Ralf Greim, Birmenstorf (CH); Said HavakechiansBaden (73) Assignee: ALSTOM TechnologyLtd.,Baden (CH) (*) Notice: Subjecttoanydisclaimer,thetermofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. (21) Appl.No.:11/743,211 (22) Filed: May2,2007 DE (10)PatentN0.: US 7,670,109B2 (45) Date of Patent: Mar. 2, 2010 3,010,281 A 11/1961 Cervenkaeta1. 3,065,954 A * 11/1962 Whitaker ...................416/183 3,143,103 A * 8/1964 Zuhn .. 415/199.1 3,941,499A * 3/1976 Kronogard..............415/199.2 4,125,344 A * 11/1978 Tiefenbacher ..............416/183 4,571,935 A 2/1986 Rice (Commued) FOREIGN PATENT DOCUMENTS 1030358 5/1958 (Commued) OTHER PUBLICATIONS (65) PriorPublicationData US 2007/0207032A1 Sep.6,2007 Related US. Application Data (63) Continuation of application NO- PCT/EP2005/ 055587, ?led on Oct. 26, 2005. Abstract only of Japanese Patent 11257007, published Sep. 1999* (Continued) _ _ PrimaryExamineriChnstopherVerdier (74) Attorney, Agent, or Firm4Cermak Kenealy Vaidya & Nakajima LLp; Adam ]_CeI-mak (57) ABSTRACT A turbine(100)ofaturbineinstallation,especiallyasteam turbine of a steam turbine installation, includes at least one radialordiagonalturbinestage(120)Withradialordiagonal in?oW and axial out?oW, and also at least one axial turbine Stage (121425) With axial in?ow and axial Out?ow The at leastoneradialordiagonalturbinestage(120)formsthe?rst stage of the turbine (100) and the at least one axial turbine stage (121-125) is arranged downstream Of the radial Or diagonal turbine stage (121) as an additional stage of the turbine.Theatleastoneradialordiagonalturbinestage(120) hasahighertemperatureresistancethantheatleastoneaxial turbine stage (121-125). The turbine (100) makes itpossible tosigni?cantlyincreasetheprocesstemperatureofthesteam turbineinstallation,Whereinmeasuresforincreasingthetem peratureresistanceneedonlytobeadoptedforcomponentsof theradialordiagonalturbinestage(120). 17 Claims, 4 Drawing Sheets (30) Nov. 2, 2004 ForeignApplicationPriorityData (51) Int‘Cl‘ FMD 1/04 (52) (58) (56) (CH) .................................. 01807/04 (200601) F01D 1/06 US. Cl. .. 415/177; 415/199.5; 415/200; 416/201 R; 416/203; 416/241 B; 29/8892; 60/772; 60/805 FieldOfClassi?cationSearch .. 415/1, 415/99e103, 120, 176*178, 198-1, 199-1*199-6, 415/200; 416/175,183,203,198A,201R, 416/241R,241B; 60/772,805; 29/8892, 29/889-21,889-22 See application ?le for Complete Search history References Cited Us PATENTDOCUMENTS 2,296,023 A * 9/1942 Dallenbach et al. ..... 415/199.5 2,848,190 A * 8/1958 Barr .. 416/97 R (200601) 121 122 123 124 X 140 US007670109B2PDF Image | Turbine 2010
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