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1. (WO2017037328) METHOD FOR OPERATING A PISTON ENGINE AND ARRANGEMENT FOR DETECTING FAILURE OF A HEAD GASKET
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/037328 International Application No.: PCT/FI2015/050565
Publication Date: 09.03.2017 International Filing Date: 01.09.2015
IPC:
G01M 15/05 (2006.01) ,F02D 41/14 (2006.01) ,F02D 41/22 (2006.01) ,G01M 15/09 (2006.01) ,G01M 15/12 (2006.01)
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15
Testing of engines
04
Testing of internal-combustion engines, e.g. diagnostic testing of piston engines
05
by combined monitoring of two or more different engine parameters
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
14
Introducing closed-loop corrections
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
22
Safety or indicating devices for abnormal conditions
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15
Testing of engines
04
Testing of internal-combustion engines, e.g. diagnostic testing of piston engines
09
by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15
Testing of engines
04
Testing of internal-combustion engines, e.g. diagnostic testing of piston engines
12
by monitoring vibrations
Applicants:
WÄRTSILÄ FINLAND OY [FI/FI]; Tarhaajantie 2 FI-65380 Vaasa, FI
Inventors:
LASSILA, Jens; FI
STEGAR, Christian; FI
RUDNÄS, Jonas; FI
Agent:
BERGGREN OY; P.O. Box 16 (Eteläinen Rautatiekatu 10 A) FI-00101 Helsinki, FI
Priority Data:
Title (EN) METHOD FOR OPERATING A PISTON ENGINE AND ARRANGEMENT FOR DETECTING FAILURE OF A HEAD GASKET
(FR) PROCÉDÉ POUR FAIRE FONCTIONNER UN MOTEUR À PISTON ET ARRANGEMENT POUR DÉTECTER UNE DÉFAILLANCE D'UN JOINT DE CULASSE
Abstract:
(EN) The method for operating a piston engine (1) comprises the steps of monitoring the pressure of a cooling liquid that is used for cooling the cylinders (5) of the engine (1), monitoring torsional vibrations of the crankshaft of the engine (1), comparing the measured cooling liquid pressure to a predetermined limit value, comparing the measured torsional vibrations to a predetermined limit value, and in case the measured cooling liquid pressure exceeds its predetermined limit value and the measured torsional vibrations exceed their predetermined limit value, diagnosing a leaking head gasket.
(FR) L'invention concerne un procédé pour faire fonctionner un moteur à piston (1) comprenant les étapes suivantes : surveillance de la pression d'un liquide de refroidissement qui est utilisé pour refroidir les cylindres (5) du moteur (1), surveillance des vibrations en torsion du vilebrequin du moteur (1), comparaison de la pression mesurée du liquide de refroidissement avec une valeur limite prédéterminée, comparaison des vibrations de torsion mesurées avec une valeur limite prédéterminée et, dans le cas où la pression mesurée du liquide de refroidissement dépasse sa valeur limite prédéterminée et les vibrations de torsion mesurées dépassent leur valeur limite prédéterminée, diagnostic d'une fuite dans un joint de culasse.
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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, 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, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)