RU2013132614A - PUMP UNIT FOR SUPPLYING FUEL, PREFERREDLY DIESEL FUEL, FROM THE FUEL TANK TO THE INTERNAL COMBUSTION ENGINE - Google Patents

PUMP UNIT FOR SUPPLYING FUEL, PREFERREDLY DIESEL FUEL, FROM THE FUEL TANK TO THE INTERNAL COMBUSTION ENGINE Download PDF

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Publication number
RU2013132614A
RU2013132614A RU2013132614/06A RU2013132614A RU2013132614A RU 2013132614 A RU2013132614 A RU 2013132614A RU 2013132614/06 A RU2013132614/06 A RU 2013132614/06A RU 2013132614 A RU2013132614 A RU 2013132614A RU 2013132614 A RU2013132614 A RU 2013132614A
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Russia
Prior art keywords
line
fuel
venturi tube
pump
inlet
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RU2013132614/06A
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Russian (ru)
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Сальваторе ПАЛЬМИСАНО
Даниеле ДЕ-ДЖЕННАРО
Нелло МЕДОРО
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Роберт Бош Гмбх
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Publication of RU2013132614A publication Critical patent/RU2013132614A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0029—Pressure regulator in the low pressure fuel system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F02M37/025—Feeding by means of a liquid fuel-driven jet pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/18—Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/447—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/08—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1. Насосный узел для подачи из топливного бака (2) в двигатель (3) внутреннего сгорания топлива, предпочтительно дизельного топлива, содержащий топливоподкачивающий насос (7), насос (6) высокого давления, гидравлический контур (14), включающий в себя следующие расположенные друг за другом линии: первую линию (15) для соединения между собой топливного бака (2) и топливоподкачивающего насоса (7), вторую линию (16) для соединения между собой топливоподкачивающего насоса (7) и насоса (6) высокого давления, третью линию (18) для соединения между собой насоса (6) высокого давления и двигателя (3) внутреннего сгорания, четвертую линию (24) для соединения между собой второй линии (16) и топливного бака (2) и пятую линию (35) для соединения между собой второй и четвертой линий (16, 24), и трубку (31) Вентури, образующую часть четвертой линии (24) и сообщающуюся с пятой линией (35), отличающийся тем, что трубка (31) Вентури ввинчена в четвертую линию (24).2. Насосный узел по п.1, в котором четвертая линия (24) и трубка (31) Вентури имеют соответствующие соединительные части (36), выполненные, соответственно, на внутренней поверхности четвертой линии (24) и на наружной поверхности трубки (31) Вентури и герметично соединенные между собой посредством соответствующих газовых резьб (37).3. Насосный узел по п.2, в котором трубка (31) Вентури имеет первый вход (33а) для приема топлива из четвертой линии (24), второй вход (34) для приема топлива из пятой линии (35) и выход (33b) топлива в четвертую линию (24).4. Насосный узел по п.3, в котором второй вход (34) выполнен за соединительной частью (36) трубки (31) Вентури по направлению потока (32) топлива в четвертой линии (24).5. Насосный узел по п.3, в котором трубка1. A pumping unit for supplying fuel from a fuel tank (2) to an internal combustion engine (3), preferably diesel fuel, comprising a fuel priming pump (7), a high pressure pump (6), a hydraulic circuit (14) including the following located one after another lines: the first line (15) for connecting the fuel tank (2) and the fuel priming pump (7), the second line (16) for connecting the fuel priming pump (7) and the high pressure pump (6), the third line (18) for interconnecting the high pressure pump (6) and the internal combustion engine (3), the fourth line (24) for interconnecting the second line (16) and the fuel tank (2) and the fifth line (35) for connecting between the second and fourth lines (16, 24), and the venturi tube (31) forming part of the fourth line (24) and communicating with the fifth line (35), characterized in that the venturi tube (31) is screwed into the fourth line (24) .2. The pumping unit according to claim 1, in which the fourth line (24) and the venturi tube (31) have corresponding connecting portions (36) made, respectively, on the inner surface of the fourth line (24) and on the outer surface of the venturi tube (31) and tightly connected to each other by means of corresponding gas threads (37). 3. The pumping unit according to claim 2, in which the venturi tube (31) has a first inlet (33a) for receiving fuel from a fourth line (24), a second inlet (34) for receiving fuel from a fifth line (35) and a fuel outlet (33b) to the fourth line (24) 4. The pumping unit according to claim 3, in which the second inlet (34) is made behind the connecting part (36) of the venturi tube (31) in the direction of the flow (32) of the fuel in the fourth line (24). The pumping unit according to claim 3, in which the tube

Claims (9)

1. Насосный узел для подачи из топливного бака (2) в двигатель (3) внутреннего сгорания топлива, предпочтительно дизельного топлива, содержащий топливоподкачивающий насос (7), насос (6) высокого давления, гидравлический контур (14), включающий в себя следующие расположенные друг за другом линии: первую линию (15) для соединения между собой топливного бака (2) и топливоподкачивающего насоса (7), вторую линию (16) для соединения между собой топливоподкачивающего насоса (7) и насоса (6) высокого давления, третью линию (18) для соединения между собой насоса (6) высокого давления и двигателя (3) внутреннего сгорания, четвертую линию (24) для соединения между собой второй линии (16) и топливного бака (2) и пятую линию (35) для соединения между собой второй и четвертой линий (16, 24), и трубку (31) Вентури, образующую часть четвертой линии (24) и сообщающуюся с пятой линией (35), отличающийся тем, что трубка (31) Вентури ввинчена в четвертую линию (24).1. A pump assembly for supplying fuel, preferably diesel fuel, from a fuel tank (2) to an internal combustion engine (3), comprising a fuel priming pump (7), a high pressure pump (6), a hydraulic circuit (14) including the following one after another lines: the first line (15) for interconnecting the fuel tank (2) and the fuel priming pump (7), the second line (16) for interconnecting the fuel priming pump (7) and the high pressure pump (6), the third line (18) for interconnecting the pump (6) high pressure and internal combustion engine (3), a fourth line (24) for interconnecting a second line (16) and a fuel tank (2) and a fifth line (35) for interconnecting a second and fourth line (16, 24), and a venturi tube (31) forming part of the fourth line (24) and communicating with the fifth line (35), characterized in that the venturi tube (31) is screwed into the fourth line (24). 2. Насосный узел по п.1, в котором четвертая линия (24) и трубка (31) Вентури имеют соответствующие соединительные части (36), выполненные, соответственно, на внутренней поверхности четвертой линии (24) и на наружной поверхности трубки (31) Вентури и герметично соединенные между собой посредством соответствующих газовых резьб (37).2. The pump assembly according to claim 1, in which the fourth line (24) and the venturi tube (31) have corresponding connecting parts (36) made, respectively, on the inner surface of the fourth line (24) and on the outer surface of the tube (31) Venturi and tightly interconnected by means of corresponding gas threads (37). 3. Насосный узел по п.2, в котором трубка (31) Вентури имеет первый вход (33а) для приема топлива из четвертой линии (24), второй вход (34) для приема топлива из пятой линии (35) и выход (33b) топлива в четвертую линию (24).3. The pump assembly according to claim 2, in which the venturi tube (31) has a first inlet (33a) for receiving fuel from the fourth line (24), a second inlet (34) for receiving fuel from the fifth line (35) and an outlet (33b ) fuel in the fourth line (24). 4. Насосный узел по п.3, в котором второй вход (34) выполнен за соединительной частью (36) трубки (31) Вентури по направлению потока (32) топлива в четвертой линии (24).4. The pump unit according to claim 3, in which the second inlet (34) is made behind the connecting part (36) of the venturi tube (31) in the direction of the fuel flow (32) in the fourth line (24). 5. Насосный узел по п.3, в котором трубка (31) Вентури имеет центральное отверстие (33), проходящее через нее и выполненное соосно с ней относительно продольной оси (25) четвертой линии (24) таким образом, что оно образует первый вход (33а) и выход (33b), причем второй вход (34) проходит через трубку (31) Вентури радиально, сообщаясь с центральным отверстием (33).5. The pump assembly according to claim 3, in which the venturi tube (31) has a central hole (33) passing through it and made coaxially with it relative to the longitudinal axis (25) of the fourth line (24) so that it forms the first inlet (33a) and outlet (33b), the second inlet (34) passing radially through the venturi (31), communicating with the central hole (33). 6. Насосный узел по п.1, в котором четвертая линия (24) имеет расширенный участок (26) и узкий участок (27), расположенные непосредственно друг за другом и соединяющиеся у ограничительного уступа (28), проходящего по существу под прямыми углами к продольной оси (25) четвертой линии (24), причем трубка (31) Вентури ввинчена в расширенный участок (26) до ее упора в ограничительный уступ (28), в контакте с которым она образует герметичное соединение.6. The pump assembly according to claim 1, in which the fourth line (24) has an expanded section (26) and a narrow section (27) located directly behind each other and connected at the restrictive ledge (28), passing essentially at right angles to the longitudinal axis (25) of the fourth line (24), and the venturi tube (31) is screwed into the extended section (26) until it stops in the restrictive ledge (28), in contact with which it forms a tight connection. 7. Насосный узел по п.1, в котором трубка (31) Вентури имеет многогранную головку (38), выполненную по форме под гаечный ключ.7. The pump unit according to claim 1, in which the Venturi tube (31) has a multi-faceted head (38) made in the shape of a wrench. 8. Насосный узел по п.1, также содержащий перепускной клапан (29), расположенный в четвертой линии (24) перед трубкой (31) Вентури по направлению потока (32) топлива в четвертой линии (24).8. The pump unit according to claim 1, also containing a bypass valve (29) located in the fourth line (24) in front of the venturi (31) in the direction of fuel flow (32) in the fourth line (24). 9. Насосный узел по одному из предыдущих пунктов, в котором гидравлический контур (14) также включает в себя дозирующий электромагнитный клапан (20), установленный во второй линии (16), причем четвертая линия (24) и пятая линия (35) соединены со второй линией (16), соответственно, перед и за дозирующим электромагнитным клапаном (20) по направлению потока (21) топлива во второй линии (16). 9. The pump unit according to one of the preceding paragraphs, in which the hydraulic circuit (14) also includes a metering solenoid valve (20) installed in the second line (16), the fourth line (24) and the fifth line (35) connected to the second line (16), respectively, in front of and behind the metering solenoid valve (20) in the direction of fuel flow (21) in the second line (16).
RU2013132614/06A 2010-12-16 2011-12-14 PUMP UNIT FOR SUPPLYING FUEL, PREFERREDLY DIESEL FUEL, FROM THE FUEL TANK TO THE INTERNAL COMBUSTION ENGINE RU2013132614A (en)

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ITMI2010A002310A IT1403264B1 (en) 2010-12-16 2010-12-16 PUMPING GROUP FOR FOOD FUEL, PREFERIBLY GASOIL, FROM A CONTAINMENT TANK TO AN INTERNAL COMBUSTION ENGINE
ITMI2010A002310 2010-12-16
PCT/EP2011/072757 WO2012080334A1 (en) 2010-12-16 2011-12-14 Pump unit for feeding fuel, preferably diesel fuel, from a storage tank to an internal combustion engine

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EP2652328B1 (en) 2014-09-17
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JP2014503737A (en) 2014-02-13
CN103261683A (en) 2013-08-21
CN103261683B (en) 2016-08-10
ITMI20102310A1 (en) 2012-06-17
KR20130141594A (en) 2013-12-26
EP2652328A1 (en) 2013-10-23

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