EP2504559A1 - Ensemble pompe pour système d'injection haute pression - Google Patents

Ensemble pompe pour système d'injection haute pression

Info

Publication number
EP2504559A1
EP2504559A1 EP10766003A EP10766003A EP2504559A1 EP 2504559 A1 EP2504559 A1 EP 2504559A1 EP 10766003 A EP10766003 A EP 10766003A EP 10766003 A EP10766003 A EP 10766003A EP 2504559 A1 EP2504559 A1 EP 2504559A1
Authority
EP
European Patent Office
Prior art keywords
pump
electric
injection system
fuel
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10766003A
Other languages
German (de)
English (en)
Inventor
Josef Frank
Alexander Fuchs
Klaus Ortner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2504559A1 publication Critical patent/EP2504559A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure 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
    • F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus
    • 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
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/18—Packaging of the electronic circuit in a casing

Definitions

  • the present invention relates to a pump assembly according to the
  • the preamble of claim 1 a high pressure injection system according to the preamble of claim 6 and an internal combustion engine according to the preamble of claim 8.
  • High-pressure pump are used in particular in high-pressure injection systems in order to promote fuel for a motor vehicle with an internal combustion engine.
  • a fuel injection system comprising a fuel boost pump and an upstream electric fuel delivery pump which delivers fuel from a fuel tank to a low pressure input of the fuel tank
  • High-pressure fuel pump promotes, wherein the electric fuel feed pump is regulated with respect to their flow and it is either located directly on the high-pressure fuel pump or integrated into the Kraftstoffh och d jerk pump.
  • Inventive pump assembly for a high pressure injection system in particular for a motor vehicle, comprising an electric feed pump with an electric motor and a pump and a high pressure pump, wherein the electric feed pump is disposed directly on the high pressure pump or integrated into the high pressure pump, wherein in the electric
  • Pre-feed pump the electric motor is integrated into the pump or vice versa.
  • the electric motor and the pump of the electric prefeed pump thus represent non-separable units.
  • the electric prefeed pump has a compact design, so that the pump assembly can be used even in spatially very limited circumstances.
  • the electric motor of the electrical feed pump is supplied by a power electronics with three-phase electrical or alternating current, so that there is an electronic commutation.
  • a power electronics with three-phase electrical or alternating current, so that there is an electronic commutation.
  • mechanical commutation elements are not required, so that due to the absence of mechanical commutation, the feed pump with respect to vibrations and other environmental influences due to the
  • the pump comprises an impeller with
  • Conveying elements and a component of the electric motor is installed or integrated in the impeller and / or the conveying elements.
  • the component is a stator of the electric motor and / or a rotor of the electric motor and / or
  • the pump comprises a housing or a limiting part for forming a working space and a component of the electric motor is installed or integrated in the housing or the limiting part.
  • an impeller is arranged with conveying elements and between the impeller and the boundary part forms a working space.
  • a gear pump one or two gears forms the impeller with conveyor elements and in the gear permanent magnets are arranged so that the gear forms the rotor of the electric motor.
  • electromagnets ie, in the electric prefeed pump, the gear pump is integrated into the electric motor.
  • the pump of the electrical feed pump is an internal or external gear pump.
  • the pump of the electrical feed pump is a rotary vane pump.
  • the pump of the electric prefeed pump is an external gear pump.
  • an external gear pump two gears are arranged within a housing.
  • the gears with the teeth thus represent an impeller with conveying elements.
  • Within a housing or a limiting part thus forms between the housing or the limiting part and the two gears, a working space for conveying a fluid, in particular fuel.
  • a stator is arranged with electromagnets within the gear and in the gear are also
  • Permanent magnets form a rotor of the electric motor and the stator is not arranged to rotate within the gear.
  • the integration of the pump takes place in the electric motor to the effect that in the teeth of a
  • Gear permanent magnets are arranged and the electromagnets of the stator are arranged on the housing.
  • the electromagnets on the housing are energized to the effect that the gear moves with the permanent magnets in the teeth, d. H. on this gear with the
  • the delivery rate of the electrical feed pump can be controlled and / or regulated.
  • the spatial distance between the electric prefeed pump and the high-pressure pump is less than 30 cm, 20 cm, 10 cm, 5 cm or 1 cm and / or the spatial distance between the pump and the electric motor of the prefeed pump is less than 30 cm , 20 cm, 10 cm, 5 cm, 1 cm or 0.5 cm.
  • a fuel filter is incorporated or integrated in a fuel line for conducting fuel from the electric feed pump to the high pressure pump.
  • a fuel filter is installed or integrated.
  • Inventive high-pressure injection system for an internal combustion engine in particular for a motor vehicle, comprising a high-pressure pump, a high-pressure rail, an electric feed pump for conveying a fuel from a fuel tank to the high-pressure pump, wherein the electric
  • Patent application described pump assembly is formed.
  • the high-pressure injection system comprises a fuel tank and at least one fuel line.
  • Patent application described pump assembly comprises.
  • FIG. 1 is a highly schematic view of a high-pressure injection system in a first embodiment
  • FIG. 2 is a highly schematic view of the high pressure injection system in a second embodiment
  • FIG. 3 is a highly schematic view of the high pressure injection system in a third embodiment
  • FIG. 4 is a highly schematic view of the high pressure injection system in a fourth embodiment
  • FIG. 5 is a highly schematic view of the high pressure injection system in a fifth embodiment
  • FIG. 6 is a highly schematic view of the high-pressure injection system in a sixth embodiment
  • FIG. 8 is a highly schematic view of the high-pressure injection system in an eighth embodiment
  • 9 is a highly schematic view of the high-pressure injection system in a ninth embodiment
  • 10 is a highly schematic view of the high-pressure injection system in a tenth embodiment
  • FIG. 11 is a highly schematic view of the high-pressure injection system in an eleventh embodiment
  • FIG. 13 is a highly schematic view of the high-pressure injection system in a thirteenth embodiment
  • 15 is a highly schematic view of the high-pressure injection system in a fifteenth embodiment
  • 16 is a highly schematic view of the high-pressure injection system in a sixteenth embodiment
  • 17 is a highly schematic view of the high-pressure injection system in a seventeenth embodiment
  • FIG. 19 is a highly schematic view of the high-pressure injection system in a nineteenth embodiment
  • 21 is a highly schematic view of the high-pressure injection system in a twenty-first embodiment
  • 22 is a highly schematic view of the high-pressure injection system in a twenty-second embodiment
  • FIG. 23 is a highly schematic view of the high-pressure injection system in a twenty-third embodiment
  • FIG. 24 is a highly schematic view of the high-pressure injection system in a twenty-fourth embodiment.
  • FIG. 24 is a highly schematic view of the high-pressure injection system in a twenty-fourth embodiment.
  • Fig. 25 is a highly schematic view of the high-pressure injection system in a twenty-fifth embodiment.
  • Fig. 26 is a view of a motor vehicle.
  • FIG. 1 shows a pump arrangement 1 of a high-pressure injection system 2.
  • An electric prefeed pump 3 delivers from a
  • the high-pressure pump 6 is driven by an internal combustion engine 12 by means of a drive shaft 19.
  • the electric prefeed pump 3 has an electric motor 4 and a pump 5.
  • the electric motor 4 of the pump 5 is integrated in the pump 5 and further, the electric prefeed pump 3 is arranged on the high-pressure pump 6.
  • the high pressure pump 6 delivers fuel under high pressure, for example, a pressure of 1000, 3000 or 4000 bar by a
  • High-pressure rail 15 the fuel is supplied under high pressure from an injector 16 a combustion chamber of the internal combustion engine 12, not shown.
  • the fuel not required for the combustion is returned to the fuel tank 14 by means of a return fuel line 10.
  • the pressure port of the electrical feed pump 3 is without an external connection to an input terminal, not shown High pressure pump 6 connected. The mounting position of the electric
  • Pre-feed pump to the high-pressure pump 6 is chosen so that the lines not shown between the electric feed pump 3 and the high-pressure pump 6 can be formed as short and direct as possible. This immediate arrangement of the electric feed pump 3 to the
  • High-pressure pump 6 also makes it possible that by short hydraulic
  • Pre-feed pump 3 is a fuel filter 1 1 installed. As a result, the fuel line 7 from the fuel tank 14 to the
  • the electric prefeed pump 3 are formed inexpensively, since it does not have to withstand excess pressure.
  • Pre-feed pump 3 is operated with three-phase or alternating current and is controllable in power and / or adjustable.
  • the three-phase current or alternating current for the electric motor 4 is provided by a power electronics, not shown, from a DC voltage network of a vehicle electrical system of a motor vehicle 13 (FIG.
  • the electric prefeed pump 3 is thus an electronically pumped prefeed pump.
  • FIG. 2 shows a second exemplary embodiment of the pump arrangement 1 or of the high-pressure injection system 2. The following will be in
  • Fuel filter 1 1 is arranged as low maintenance in an engine compartment of the motor vehicle 13, not shown.
  • a third embodiment of the pump assembly 1 and the high-pressure injection system 2 is shown.
  • the electric prefeed pump 3 is attached to the engine 12, d. H. the electric prefeed pump 3 is disposed directly on the engine 12 or in the
  • Embodiment differs from the third embodiment only in that the fuel filter 1 1 instead of the fuel line 7 from the fuel tank 14 to the electric feed pump 3 in the
  • High-pressure pump 6 is arranged.
  • the drive of the high pressure pump 6 is not shown in Fig. 3 and 4.
  • the electric prefeed pump 3 is disposed within the fuel tank 14, preferably at a lowest point within the fuel tank 14.
  • the fuel filter 1 1 is located on the fuel line 7 from the fuel tank to the electric prefeed pump 3 and is also disposed within the fuel tank 14.
  • An installation within the fuel tank 14 of the electric prefeed pump 3 is due to the compact design, because the electric motor 4 is integrated into the pump 5, easily and easily possible. In an advantageous manner, when installed in the fuel tank 14, no additional tank installation unit is required as in the prior art.
  • the electric prefeed pump 3 is either arranged loosely within the fuel tank 14 or inserted or can be fixed to the fuel tank 14, for example by means of a catch or
  • High-pressure injection system 2 differs from the fifth
  • Embodiment only in that the fuel filter 1 1 is arranged outside of the fuel tank 14 in the fuel line 8 from the prefeed pump 3 to the high-pressure pump 6.
  • High-pressure injection system 2 shown.
  • the electric prefeed pump 3 is arranged or attached to the outside of the fuel tank 14. The placement takes place on the outside of the fuel tank 14 to the effect that good accessibility within the motor vehicle 14 to the electric
  • Pre-feed pump 3 is guaranteed. Otherwise, the seventh
  • FIG. 8 an eighth embodiment of the pump assembly 1 and the Hoch horreinstellsystems 2 is shown.
  • the electric prefeed pump 3 is not attached to the high pressure pump 6, but provides one thereof
  • the fuel filter 1 1 is in the
  • the ninth embodiment of the pump assembly 1 and the high-pressure injection system 2 shown in Fig. 9 differs from the eighth
  • Embodiment of FIG. 8 characterized in that the fuel filter 1 1 is arranged in the fuel line 8 from the prefeed pump 3 to the high-pressure pump 6. Otherwise, in the ninth embodiment, the electric prefeed pump 3 to the body of the not shown
  • Motor vehicle 13 (not shown) attached.
  • the attachment takes place by means of a detachable or non-detachable connection analogous to that
  • FIG. 10 shows a tenth exemplary embodiment of the pump arrangement 1 and of the high-pressure injection system 2.
  • the electric prefeed pump 3 is arranged directly on the fuel filter 1 1 or is integrated into the fuel filter 1 1 or vice versa.
  • Fuel filter 1 1 thus represent a unitary unit, which is disposed within the engine compartment of the motor vehicle 13 (not shown).
  • the hydraulic connection between the electric feed pump 3 and the fuel filter 1 1 thus takes place internally, so that work steps can be saved during assembly.
  • To the assembly of electric prefeed pump and fuel filter 1 1 is only the fuel line 7 and the fuel line 8 to connect. A separate independent connection of both the
  • Pre-feed pump 3 and the fuel filter 1 1 is not required.
  • the fuel filter 1 1 is internally connected internally to the electric prefeed pump 3 and in the in
  • Fig. 1 1 illustrated embodiment, the fuel filter 1 1 on the pressure side internally connected to the electric feed pump 3.
  • the assembly of electric prefeed pump and fuel filter 1 1 is preferably fixed to the motor vehicle 13, in particular its body (not shown) by means of a detachable or non-detachable attachment.
  • a detachable or non-detachable attachment can be arranged on the body of a slip-on, in the opening or eye of an elastic tab is inserted and on the elastic tab at the end of a widening is present, so that after insertion of the tab with the expansion and the compression within the eyelet on the Body expands after pushing through the eyelet widening again due to the elastic properties and thus the unit
  • Pre-feed pump 3 and fuel filter 1 1 is attached. Notwithstanding this, the attachment may also be a screwed or riveted connection.
  • FIG. 12 shows a twelfth exemplary embodiment of the pump arrangement 1 and of the high-pressure injection system 2.
  • the electric prefeed pump 3 is electronically commutated, so that a power electronics 17 for the electric prefeed pump 3 is required (preferably analogous embodiment Fig. 1).
  • the prefeed pump 3 is thus controllable in its performance and / or regulated. Between the power electronics 17 and the electric motor 4 of the electric prefeed pump 3 18 streams with high
  • the prefeed pump 3 and the power electronics 17 are arranged or attached directly to the internal combustion engine 12 or integrated into the internal combustion engine 12.
  • the lines 18 connect the
  • Internal combustion engine 12 follows by means of a detachable or non-detachable
  • connection for example by screwing or preferably also elastic damping elements are used to the vibrations of the
  • a thirteenth embodiment is shown, which differs from the twelfth embodiment substantially in that the
  • Electric motor 4 is mounted so that the power electronics 17 is located directly on the prefeed pump 3, in particular to the electric motor 4, or in the prefeed pump 3, in particular the electric motor 4, is integrated.
  • the lines 18 can be made very short, so that external
  • Lines 18 between the prefeed pump 3 and the power electronics 17 are not required.
  • Pump assembly 1 and the high-pressure injection system 2 differs from the twelfth embodiment shown in FIG. 12 only in that the electric feed pump 3 and the power electronics 17 are mounted or integrated instead of the internal combustion engine 12 to the high-pressure pump 6.
  • the fifteenth embodiment according to FIG. 15 differs from the thirteenth embodiment according to FIG. 13 only in that the electric prefeed pump 3 and the power electronics 17 (power electronics 17 and electric prefeed pump 3 are integrated) are arranged directly on the high-pressure pump 6 as a structural unit or integrated.
  • Power electronics 17 to the high-pressure pump 6 is carried out analogously to the twelfth and thirteenth embodiment, d. H. for example, with a releasable or non-detachable connection and preferably damped by means of an elastic damping element.
  • FIG. 16 shows a sixteenth exemplary embodiment of the pump arrangement 1 and of the high-pressure injection system 2.
  • the power electronics 17 is arranged directly on the prefeed pump 3 or integrated into it, so that they represent a structural unit.
  • Fig. 18 an eighteenth embodiment of the pump assembly 1 and the high-pressure injection system 2 is shown.
  • the electrically prefeed pump 3 and the power electronics 17 are within the fuel tank fourteenth
  • Power electronics 17 represent a structural unit.
  • the power electronics 17 is thus arranged directly to the prefeed pump 3, in particular the electric motor 4 or integrated into this. As a result, no external lines 18 between the power electronics 17 and the electric motor 4 of
  • Pre-feed pump 3 required.
  • the common housing of the prefeed pump 3 and the power electronics 17 is electrically conductive, a shielding of the internal lines between the power electronics 17 and the prefeed pump 3 is not required.
  • the power electronics 17 can also be arranged or fastened on the outside of the wall of the fuel tank 14 (not shown). The fixation of
  • FIG. 20 shows a twentieth embodiment of the pump arrangement 1 and of the high-pressure injection system 2.
  • the prefeed pump 3 and the power electronics 17 for the electronically commutated prefeed pump 3 are attached to the fuel filter 1 1 or installed. This means that the prefeed pump 3, the power electronics 17 and the fuel filter 1 1 represent a structural unit.
  • the power electronics 17 and / or the prefeed pump 3 are thus arranged directly on the fuel filter 1 1 or in the
  • Fuel filter 1 1 integrated.
  • the lines 18 of the power electronics 17 to the prefeed pump 3 can thus be made short and thus the shielding of the lines 18 only on the short lines 18 is required.
  • Power electronics 17 not grown on the fuel filter 1 1, but on the feed pump 3, in particular the electric motor 4, grown.
  • Electric motor 4 thus form a structural unit and the power electronics 17 is arranged directly on the prefeed pump 3, in particular the electric motor 4 or integrated in this. As a result, no external lines 18 between the power electronics 17 and the electric motor 4 of
  • Pre-feed pump 3 required.
  • Power electronics 17 to the fuel filter 1 1 is analogous to the embodiments shown above, for example, on the body, detachable or non-detachable and preferably damped by means of a
  • Fig. 22 is a second embodiment of the pump assembly 1 and the
  • the power electronics 17 is attached to the engine control unit 20 of the motor vehicle 13.
  • the power electronics 17 is thus arranged directly to the engine control unit or integrated into the engine control unit 20, preferably, the engine control unit 20 and the power electronics 17 on a common housing, not shown on.
  • the engine control unit 20 becomes close to the prefeed pump 3 arranged so that the lines to be shielded 18 can be carried out very short in an advantageous manner. Besides, there are no external ones
  • the assembly of the power electronics 17 in the engine control unit 20 is preferably carried out to the effect that in the engine control unit 20 existing heat sink, unused amplifiers and
  • Power supply units can be used for the
  • Power electronics 17 (not shown). Preferably, therefore, no separate housing for the power electronics 17 is required because both the
  • Power electronics 17 and the engine control unit 20 have a common housing and existing heatsink on the engine control unit 20 can be shared for the power electronics 17.
  • the feed pump 3 is the power electronics 17 and a
  • the control electronics 21 is at an autonomous position in the motor vehicle 13, z. B. within an engine compartment arranged.
  • the control electronics 21 is at an autonomous position in the motor vehicle 13, z. B. within an engine compartment arranged.
  • Control electronics 21 attached to the body of the engine compartment.
  • the speed of the prefeed pump 3 can be controlled and / or regulated.
  • the mounting parts Due to the arbitrary autonomous position of the control electronics 21, the mounting parts can be chosen so that it is chosen as low as possible with respect to vibration, temperature or other negative environmental influences.
  • Pre-feed pump 3 are kept as short as possible.
  • the control electronics 21 is mounted so that an optimum in terms of space in the
  • control electronics 21 and the power electronics 17 are integrated or one
  • control electronics 21 is thus at the
  • Power electronics 17 arranged directly or integrated into the power electronics 17.
  • the power electronics 17 and the power electronics 17 are arranged directly or integrated into the power electronics 17.
  • Control electronics 21 a common housing. This can be advantageously on external lines 18 between the control electronics 21 and the
  • Power electronics 17 are dispensed with. Will the electronics of the
  • Power electronics 17 is carried out in an analogous manner to the embodiments described above, in particular on the body, not shown, detachable or non-detachable, preferably damped by means of a
  • FIG. 25 shows a twenty-fifth embodiment of the pump assembly 1 and the high-pressure injection system 2.
  • the control electronics 21 is attached to the engine control unit 20.
  • the control electronics 21 is thus arranged directly on the engine control unit 20 or in the
  • Engine control unit 20 integrated.
  • the engine control unit 20 and the control electronics 21 have a common housing.
  • the control electronics 21 Preferably, the
  • Electronics of the engine control unit 20 and the control electronics 21 are housed on a common board, so that for the communication between the electronics of the engine control unit 20 and the electronics of the control electronics 21 no separate communication parts, eg. B. one
  • Pulse width modulator or a bus interface is required.
  • the assembly of engine control unit 20 and control electronics 21 is in an analogous manner to the fixed above examples, z. B. on a body of the
  • Motor vehicle 13 preferably detachable or non-detachable, for example, with a damping element for damping.
  • the high-pressure injection systems 2 shown above have no metering unit, because the prefeed pump 3 can be controlled and / or regulated in terms of its performance.
  • the pump 5 is integrated into the electric motor 4 or vice versa.
  • the power of the prefeed pump 3 can be controlled and / or regulated, in particular to the effect that the electric motor 4 of the prefeed pump 3 is electronically commutated, in particular by means of the power electronics 17 and / or the control electronics 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un ensemble pompe (1) pour un système d'injection haute pression (2), en particulier pour un véhicule à moteur (13), comprenant une pompe de pré-alimentation électrique (3) présentant un moteur électrique (4) et une pompe (5), et une pompe haute pression (6). La pompe de pré-alimentation électrique (3) est montée directement sur la pompe haute pression (6), ou intégrée dans la pompe haute pression (6) et, pour la pompe de pré-alimentation électrique (3), le moteur électrique (4) est intégré dans la pompe (5), ou inversement.
EP10766003A 2009-11-26 2010-10-04 Ensemble pompe pour système d'injection haute pression Withdrawn EP2504559A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910047176 DE102009047176A1 (de) 2009-11-26 2009-11-26 Pumpenanordnung für ein Hochdruckeinspritzsystem
PCT/EP2010/064705 WO2011064022A1 (fr) 2009-11-26 2010-10-04 Ensemble pompe pour système d'injection haute pression

Publications (1)

Publication Number Publication Date
EP2504559A1 true EP2504559A1 (fr) 2012-10-03

Family

ID=43305958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10766003A Withdrawn EP2504559A1 (fr) 2009-11-26 2010-10-04 Ensemble pompe pour système d'injection haute pression

Country Status (3)

Country Link
EP (1) EP2504559A1 (fr)
DE (1) DE102009047176A1 (fr)
WO (1) WO2011064022A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718827A (en) * 1986-07-07 1988-01-12 General Motors Corporation Fuel pump
DE3630439A1 (de) * 1986-09-06 1988-03-10 Motoren Werke Mannheim Ag Doppel-einspritzverfahren fuer selbstzuendende brennkraftmaschinen
DE4444417B4 (de) * 1994-12-14 2005-01-05 Robert Bosch Gmbh Kraftstoffversorgungsanlage
DE19811893A1 (de) * 1998-03-18 1999-09-23 Bosch Gmbh Robert Mehrstufige Seitenkanalpumpe für Kraftstoff für ein Kraftfahrzeug
DE10154552A1 (de) * 2001-11-07 2003-05-15 Bosch Gmbh Robert Kraftstoff-Pumpeinrichtung für ein Kraftstoffsystem einer Brennkraftmaschine sowie Kraftstoffsystem
DE102004008478B4 (de) 2004-02-20 2007-05-10 Siemens Ag Fördermengenregelung einer Hochdruckpumpe
JP2007146758A (ja) * 2005-11-28 2007-06-14 Denso Corp 燃圧制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011064022A1 *

Also Published As

Publication number Publication date
WO2011064022A1 (fr) 2011-06-03
DE102009047176A1 (de) 2011-06-01

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