Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018002610) METHOD FOR MAXIMIZING THE FORMATION OF DEPOSITS IN INJECTOR NOZZLES OF GDI ENGINES
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/002610 International Application No.: PCT/GB2017/051884
Publication Date: 04.01.2018 International Filing Date: 28.06.2017
IPC:
F02M 65/00 (2006.01) ,G01M 15/05 (2006.01) ,F02B 77/04 (2006.01) ,F02B 75/12 (2006.01) ,F02D 41/38 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
65
Testing fuel-injection apparatus, e.g. testing injection timing
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
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
77
Component parts, details, or accessories, not otherwise provided for
04
Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75
Other engines, e.g. single-cylinder engines
12
Other methods of operation
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
30
Controlling fuel injection
38
of the high pressure type
Applicants:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS [BR/BR]; Av. República do Chile No. 65 Rio de Janeiro, BR
ROBERTS, Mark Peter [GB/GB]; GB (MW)
Inventors:
PEREIRA DE OLIVEIRA, Paulo Cesar; BR
BASTOS MACHADO, Guilherme; BR
CAVALCANTE CORDEIRO DE MELO, Tadeu; BR
LAURENTYS AIROLDI, Marcelo; BR
NOHRA CHAAR DE SOUZA, Renata; BR
GOMES DIAS, Flávio; BR
YVES TURKOVICS, Franck; BR
LIRA DA SILVA, Pedro Artur; BR
Agent:
J A KEMP; 14 South Square Gray's Inn London Greater London WC1R 5JJ, GB
Priority Data:
102016015228-328.06.2016BR
Title (EN) METHOD FOR MAXIMIZING THE FORMATION OF DEPOSITS IN INJECTOR NOZZLES OF GDI ENGINES
(FR) PROCÉDÉ POUR OPTIMISER LA FORMATION DE DÉPÔTS DANS DES BUSES D'INJECTEURS DE MOTEURS GDI
Abstract:
(EN) The present invention relates to the technology of gasoline direct injection (GDI) in automotive engines. In this context, the present invention provides a method for maximizing the formation of deposits in injector nozzles of GDI engines, said method comprising at least one test cycle, each test cycle comprising at least one testing step in which a predetermined condition of speed and load of the GDI engine is maintained for a specified period of time, wherein, in said cycle, in at least one testing step, the engine speed is maintained between 1300 and 3700 rpm, the engine load is maintained between 10 and 80% and the specified period of time is from 10 to 200 minutes. Thus, the method of the present invention is able to reproduce severe conditions of deposition of material in a few days, so that, in a short period of time, the test fuel can be assessed for tendency to form deposits.
(FR) La présente invention concerne la technologie de l'injection directe d'essence (GDI) dans des moteurs automobiles. Dans ce contexte, la présente invention concerne un procédé qui permet d'optimiser la formation de dépôts dans des buses d'injecteurs de moteurs GDI et qui comprend au moins un cycle d'essai, chaque cycle d'essai comprenant au moins une étape d'essai dans laquelle une condition prédéterminée de vitesse et de charge du moteur GDI est maintenue pendant un laps de temps spécifié, dans ledit cycle, au cours d'au moins une étape d'essai, la vitesse du moteur étant maintenue entre 1 300 et 3 700 tr/min, la charge du moteur étant maintenue entre 10 et 80 % et le laps de temps spécifié étant de 10 à 200 minutes. Ainsi, le procédé de la présente invention est capable de reproduire des conditions difficiles de dépôt de matériau en quelques jours, de telle sorte que, en un court laps de temps, la tendance du carburant à l'essai à former des dépôts peut être évaluée.
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, 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
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: English (EN)
Filing Language: English (EN)
Also published as:
EP3303821AU2017291449CN109642535US20190195184