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1. (WO2017098124) METHOD, SYSTEM AND COMPUTER PROGRAM FOR MONITORING A TURBOMACHINE START-UP SEQUENCE BY MONITORING THE SPEED OF THE HIGH-PRESSURE SPOOL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/098124 International Application No.: PCT/FR2016/053206
Publication Date: 15.06.2017 International Filing Date: 05.12.2016
IPC:
F01D 19/00 (2006.01) ,F02C 7/26 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
19
Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
C
GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7
Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
26
Starting; Ignition
Applicants:
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 boulevard du Général Martial Valin 75015 Paris, FR
Inventors:
FOIRET, Guilhem, Alcide, Auguste; FR
Agent:
GUERRE, Fabien; FR
Priority Data:
15 6192907.12.2015FR
Title (EN) METHOD, SYSTEM AND COMPUTER PROGRAM FOR MONITORING A TURBOMACHINE START-UP SEQUENCE BY MONITORING THE SPEED OF THE HIGH-PRESSURE SPOOL
(FR) PROCÉDÉ, SYSTÈME ET PROGRAMME D'ORDINATEUR DE SURVEILLANCE D'UNE SÉQUENCE DE DÉMARRAGE D'UNE TURBOMACHINE PAR SUIVI DU RÉGIME DU CORPS HAUTE PRESSION
Abstract:
(EN) The invention relates to a method for monitoring a start-up sequence of a turbomachine which comprises a compressor provided with a rotor, a starter capable of driving the rotor, and a combustion chamber. The start-up sequence comprises a first phase during which the starter increases the rotational speed of the rotor up to a moment of injection of fuel into the combustion chamber of the turbomachine, and a second phase subsequent to the first phase, which ends when the starter stops driving the rotor. The method comprises: – acquisition (ACQ) of a signal representative of the rotational speed of the rotor during the start-up sequence; – detection (DRP1, DRP2, INT) of a breakpoint in the evolution of the said signal with respect to time, the breakpoint thus detected being likened to a moment of ignition of an air–fuel mixture in the combustion chamber.
(FR) L'invention porte sur un procédé de surveillance d'une séquence de démarrage d'une turbomachine qui comporte un compresseur doté d'un rotor, un démarreur apte à entraîner le rotor et une chambre de combustion. La séquence de démarrage comprend une première phase au cours de laquelle le démarreur augmente la vitesse de rotation du rotor jusqu'à un instant d'injection de carburant dans la chambre de combustion de la turbomachine, et une deuxième phase postérieure à la première phrase qui s'achève lorsque le démarreur cesse d'entraîner le rotor. Le procédé comprend: - l'acquisition (ACQ) d'un signal représentatif de la vitesse de rotation du rotor pendant la séquence de démarrage; - la détection (DRP1, DRP2, INT) d'un instant de rupture dans l'évolution temporelle dudit signal, l'instant de rupture ainsi détecté étant assimilé à un instant d'allumage d'un mélange air-carburant dans la chambre de combustion.
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Designated States: 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, JP, KE, KG, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
FR3044703CN108368747EP3387223US20180363494