Patent SG-11201811141X-A (SG)
Title: Turbine assembly maintenance methods
Inventor: LIPKIN DON
IPC: F01D5/00
Filed: 2017-06-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 January 2018 (04.01.2018) W I PO I PCT oimitia OH oI0IIIIIIII0111VIIIVIIIIIIIImmo oimIE (10) International Publication Number WO 2018/005107 Al (51) International Patent Classification: FOlD 5/00 (2006.01) FOlD 25/28 (2006.01) B23P 6/00 (2006.01) (21) International Application Number: PCT/US2017/037592 (22) International Filing Date: 15 June 2017 (15.06.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/198,754 30 June 2016 (30.06.2016) US (71) Applicant: GENERAL ELECTRIC COMPANY [US/US]; 1 River Road, Schenectady, NY 12345 (US). (72) Inventors: LIPKIN, Don, Mark; One Research Circle, Niskayuna, NY 12309 (US). DANKO, Todd, William; One Research Circle, Niskayuna, NY 12309 (US). (74) Agent: OVERBECK, Brian P. et al.; General Electric Company, Global Patent Operation, 901 Main Avenue, 3rd Floor, Norwalk, CT 06851 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.1700) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: with international search report (Art. 21(3)) — (54) Title: TURBINE ASSEMBLY MAINTENANCE METHODS W O 20 18/005 107 Al (57) : The present invention is directed to in situ methods for maintaining turbine assemblies (10). One such method includes: disposing a maintenance apparatus (20) on the rotor (12); positioning the maintenance apparatus proximate to the damaged region (40) by rotating the rotor; and repairing the damaged region by operating a repair tool (22) disposed on the apparatus. Another method includes: disposing a maintenance apparatus on the stator; positioning the dam- aged region proximate to the maintenance apparatus by rotating the rotor; and repairing the damaged region by operating a repair tool dis- posed on the apparatus.