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1. (WO2018045100) FUEL TANK SYSTEM AND METHOD FOR DETECTING AUTOMOTIVE FUEL SYSTEM LEAKS
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Pub. No.: WO/2018/045100 International Application No.: PCT/US2017/049485
Publication Date: 08.03.2018 International Filing Date: 30.08.2017
IPC:
B60K 15/077 (2006.01) ,B60K 15/035 (2006.01) ,B60K 15/04 (2006.01) ,F02M 25/08 (2006.01) ,B60K 15/03 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
15
Arrangement in connection with fuel supply of combustion engines; Mounting or construction of fuel tanks
03
Fuel tanks
077
with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
15
Arrangement in connection with fuel supply of combustion engines; Mounting or construction of fuel tanks
03
Fuel tanks
035
characterised by venting means
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
15
Arrangement in connection with fuel supply of combustion engines; Mounting or construction of fuel tanks
03
Fuel tanks
04
Tank inlets
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
25
Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel, or fuel-air mixture
08
adding fuel vapours drawn from engine fuel reservoir
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
15
Arrangement in connection with fuel supply of combustion engines; Mounting or construction of fuel tanks
03
Fuel tanks
Applicants:
EATON CORPORATION [US/US]; Eaton Center, 1000 Eaton Blvd. Cleveland, Ohio 44122, US
Inventors:
MEMMER, Matthew; US
Agent:
HOLLIS, Brian D.; US
Priority Data:
62/381,36230.08.2016US
Title (EN) FUEL TANK SYSTEM AND METHOD FOR DETECTING AUTOMOTIVE FUEL SYSTEM LEAKS
(FR) SYSTÈME DE RÉSERVOIR DE CARBURANT ET PROCÉDÉ DE DÉTECTION DE FUITES DE CIRCUIT DE CARBURANT DE VÉHICULE AUTOMOBILE
Abstract:
(EN) A fuel tank system according to the present disclosure includes a fuel tank, a purge canister a valve assembly and a controller. The valve assembly has an upstream canister valve that moves between an open position and a closed position to close an upstream vent line that fluidly connects the fuel tank and the purge canister. The controller (i) conducts a first pressure test that measures a pressure in the fuel tank over a time, (ii) closes the upstream canister valve based on a determination that a leak exists, (iii) conducts a second pressure test that measures a pressure in the fuel tank over a time subsequent to closing the upstream canister valve and (iv) determines a location of the leak based on comparing the first pressure test and the second pressure test.
(FR) La présente invention concerne un système de réservoir de carburant qui comprend un réservoir de carburant, une soupape de purge, un ensemble soupape et un dispositif de commande. L'ensemble soupape comprend une soupape de purge amont qui se déplace entre une position ouverte et une position fermée pour fermer une conduite d'air amont qui raccorde de manière fluidique le réservoir de carburant à la soupape de purge. Le dispositif de commande (i) effectue un premier essai de pression qui mesure une pression dans le réservoir de carburant pendant un laps de temps, (ii) ferme la soupape de purge amont sur la base d'une détermination selon laquelle il existe une fuite, (iii) effectue un second essai de pression qui mesure une pression dans le réservoir de carburant pendant un laps de temps suivant la fermeture de la soupape de purge amont et (iv) détermine un emplacement de la fuite sur la base de la comparaison du premier essai de pression et du second essai de pression.
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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, 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 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)