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1. (WO2007001425) DUAL COUNTERWEIGHT BALANCING SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/001425 International Application No.: PCT/US2005/037808
Publication Date: 04.01.2007 International Filing Date: 20.10.2005
IPC:
B64C 27/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
27
Rotorcraft; Rotors peculiar thereto
Applicants:
ROLLS-ROYCE CORPORATION [US/US]; P.o. Box 420 Indianapolis, IN 46206-0420, US (AllExceptUS)
ROEVER, Douglas, Michael [US/US]; US (UsOnly)
NORRIS, Christopher, John [US/US]; US (UsOnly)
Inventors:
ROEVER, Douglas, Michael; US
NORRIS, Christopher, John; US
Agent:
ALLIC, John, Ho ; Krieg Devault LLP One Indiana Square, Suite 2800 Indianapolis, IN 46204-2079, US
Priority Data:
10/969,30920.10.2004US
Title (EN) DUAL COUNTERWEIGHT BALANCING SYSTEM
(FR) SYSTEME D'EQUILIBRAGE A DOUBLE CONTREPOIDS
Abstract:
(EN) A system for balancing a rotatable gas turbine engine component. The system includes two balance rings that are coupled to the component by mating splines on the respective item. Each of the rings has a mass asymmetry that is indexable relative to the primary component to achieve the imbalance correction.
(FR) L'invention concerne un système pour équilibrer un composant de moteur de turbine à gaz pouvant être mis en rotation. Ce système comprend deux anneaux d'équilibrage couplés au composant par des clavettes d'accouplement sur l'article respectif. Chaque anneau présente une asymétrie de masse qui est indexable par rapport au composant primaire, pour obtenir une correction de déséquilibre.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1817227