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1. (WO2018122007) PUMP UNIT FOR FEEDING FUEL, PREFERABLY DIESEL FUEL, TO AN INTERNAL COMBUSTION ENGINE
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Pub. No.: WO/2018/122007 International Application No.: PCT/EP2017/083029
Publication Date: 05.07.2018 International Filing Date: 15.12.2017
IPC:
F04B 1/04 (2006.01) ,F04B 53/16 (2006.01) ,F02M 59/46 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
04
having cylinders in star- or fan-arrangement
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53
Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
16
Casings; Cylinders; Cylinder liners or heads; Fluid connections
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
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44
Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
46
Valves
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
FIORENTINO, Luigi; IT
Priority Data:
10201600013185928.12.2016IT
Title (EN) PUMP UNIT FOR FEEDING FUEL, PREFERABLY DIESEL FUEL, TO AN INTERNAL COMBUSTION ENGINE
(FR) GROUPE DE POMPAGE POUR L'ALIMENTATION EN CARBURANT, DE PRÉFÉRENCE EN DIESEL, D'UN MOTEUR À COMBUSTION INTERNE
(DE) PUMPENAGGREGAT ZUM ZUFÜHREN VON KRAFTSTOFF, BEVORZUGT DIESEL, ZU EINEM VERBRENNUNGSMOTOR
Abstract:
(EN) The invention relates to a pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, comprising at least one cylinder (14), a piston (15) which is displaceably arranged in the cylinder (14), and a pressure valve (30) for selectively controlling the supply of fuel to the internal combustion engine, wherein the pressure valve (30) has a closure part (38) which is displaceably arranged in a widened portion (13b) of a pressure line (12, 13b), said pressure line being further provided with a narrowed portion (12) having a toothing (43, 46) which is formed on the inner wall (44) thereof.
(FR) L’invention concerne un groupe de pompage pour l’alimentation en carburant, de préférence en diesel, d’un moteur à combustion interne, ledit groupe comprenant au moins un cylindre (14), un piston (15) monté coulissant dans le cylindre (14) et un clapet de refoulement (30) permettant la commande sélective de l’alimentation en carburant du moteur à combustion interne, le clapet de refoulement (30) comportant une pièce d’obturation (38) qui est montée coulissante dans une partie évasée (13b) d'une conduite de refoulement (12, 13b) qui comporte par ailleurs une partie rétrécie (12) munie d'une denture (43, 46) réalisée sur sa paroi interne (44).
(DE) Ein Pumpenaggregat zum Zuführen von Kraftstoff, bevorzugt Diesel, zu einem Verbrennungsmotor weist mindestens einen Zylinder (14), einen verschieblich im Zylinder (14) angeordneten Kolben (15) und ein Druckventil (30) zum selektiven Steuern der Zuführung des Kraftstoffs zum Verbrennungsmotor auf, wobei das Druckventil (30) ein Verschlussteil (38) aufweist, das verschieblich in einem aufgeweiteten Abschnitt (13b) einer Druckleitung (12, 13b) angeordnet ist, die ferner mit einem verengten Abschnitt (12) versehen ist, der eine Zahnung (43, 46) aufweist, die an seiner Innenwand (44) ausgebildet ist.
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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: German (DE)
Filing Language: German (DE)