EP1091116A2 - Kraftstoffversorgungseinrichtung sowie Kraftstoffpumpe - Google Patents
Kraftstoffversorgungseinrichtung sowie Kraftstoffpumpe Download PDFInfo
- Publication number
- EP1091116A2 EP1091116A2 EP00119705A EP00119705A EP1091116A2 EP 1091116 A2 EP1091116 A2 EP 1091116A2 EP 00119705 A EP00119705 A EP 00119705A EP 00119705 A EP00119705 A EP 00119705A EP 1091116 A2 EP1091116 A2 EP 1091116A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pump
- supply device
- fuel pump
- fuel supply
- 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- Withdrawn
Links
Images
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
- F02M37/02—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
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
-
- 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
Definitions
- the invention relates to a fuel supply device for an internal combustion engine, in particular as a fuel supply device in connection with a motor vehicle fuel tank, with at least one electrically operated fuel pump, which is arranged in a swirl pot and fuel from the surge pot into a fuel supply line to the engine promotes, and with at least one fuel return line from the engine or from a bypass in the fuel supply line.
- Such fuel supply facilities can be found both at Motor vehicles with Otto engines as well as motor vehicles with diesel engines application.
- a so-called surge pot acts as a reserve container serves from which fuel is constantly pumped to the engine becomes.
- This baffle should be in every driving situation be filled, which is usually arranged in the tank with suction jet pumps is accomplished via a fuel return line from the engine or with no-return fuel supply systems via a bypass from the fuel supply line branched return are driven.
- suction jet pumps as auxiliary pumps constantly deliver fuel from the tank to the baffle.
- Fuel supply devices are known, in which the fuel pump constantly a constant amount of fuel to the motor regardless of whether the motor is under Part load or full load is operated. At partial load operation this results in a relatively high return flow, but which may not be necessary at all, because for the surge tank is only slightly filled at partial load Return flow would be sufficient. In contrast, at full load operation a high volume flow from the tank into the baffle be promoted because the fuel pump from the baffle to the motor. But then there is a proportionate one low return flow because the engine uses a lot of fuel decreases.
- the pump must therefore be at the maximum possible Conveying capacity can be designed.
- the invention is therefore based on the object of a fuel supply device of the type mentioned above to improve that a relatively simple and reliable control of the fuel pump guaranteed is.
- the Integrated electronic control and fuel pump has at least one hydraulic control input and that the hydraulic control input of the fuel pump to the Fuel supply line and / or to the fuel return line connected.
- the invention makes itself in an advantageous manner Tank available information, d. H. the fuel pressures take advantage of forward or reverse, which directly to the in the Fuel pump integrated control electronics passed on become. A coupling of the fuel pump with an electronic one Engine management is so unnecessary.
- the fuel pump is preferably controlled with it combined into one unit, so that essential elements the fuel supply device in the fuel tank are arranged.
- the fuel pump expediently comprises at least one Pressure sensor that is operatively connected to the control input stands.
- the pressure sensor can either be based on the system pressure, i.e. H. the pressure in the fuel supply line or the dynamic pressure of the return.
- Fuel is referred to, rather it is said to return in the sense of the invention also from the fuel supply Volume flow branched off to the engine in the tank for operation a suction jet pump to be understood.
- the invention is also on fuel supply systems generally referred to as non-return applicable.
- a suction jet pump can be connected to the return line for filling the baffle during operation of the Fuel pump connected, the suction jet pump is designed as a calibration device or as a calibration device serves. Based on the pressure change on the suction jet pump you can determine how big the unused one Is the amount of fuel in the engine. Does this back pressure affect the pressure sensor of the fuel pump, the return pressure or the driving quantity for the suction jet pump constant be held and the fuel pump adapts to each current consumption. This way it becomes reliable avoided that with increased fuel consumption on the engine, for example, at full load, which is in the baffle the amount of fuel delivered decreases or the engine runs out Fuel is supplied.
- suction jet pump is designed so that the pressure in the return line can correspond to the pressure in the supply line, so that the pressure of the entire fuel pump control system is tapped. This measure can lead to a additional return pressure control valve between engine and tank to be dispensed with.
- suction jet pump for filling of the baffle in a housing with the fuel pump as well as the associated control electronics, the suction jet pump via a reference bore with the in Pump housing provided pressure sensor can communicate.
- the invention further relates to a fuel pump for a Internal combustion engine, in particular for a fuel supply device in a motor vehicle, with a DC motor and a pumping station as a fuel flow Assembly characterized by means for controlling the pump, the at least one hydraulic control input include and with the pumping station and the DC motor an assembly, preferably in a housing, summarized are.
- the control preferably comprises at least one pressure sensor.
- An electronically commutated can be used as a DC motor DC motor can be provided.
- the fuel supply device shown in FIGS. 1 and 2 comprises a tank labeled 1 with a feed line 2 to a motor vehicle engine 3 and with a return line 4 from the engine 3 back into the tank 1.
- a fuel pump 5 is arranged in a tank 1 only schematically illustrated surge pot 6 and a suction jet pump 7, which is driven via the fuel return line 4 and fuel from tank 1 into the baffle 6 promotes as long as the fuel pump 5 is operated.
- a schematic view of the suction jet pump is shown in FIG. 4 shown.
- Fig. 1 the Fuel from the fuel pump 5 via a fuel filter 8 and a pressure regulator 9 to the motor 3. Between the engine 3 and the pressure regulator 9 is in the system pressure Of the order of magnitude between 2 and 6 bar. The pressure in the return line 4 is significantly lower.
- the fuel flow of the Return line 4 drives the suction jet pump 7, the Fuel of the return line 4 in a nozzle 10 of the suction jet pump 7 forms a propellant jet 11 which forms a suction jet 12 pulls from the tank 1 into the baffle 6.
- the fuel pump 5 has a hydraulic designated 13 Control input that acts on a pressure sensor 14.
- the control input 13 is in the embodiment shown in FIG. 1 connected to the return line 4 and between the pressure regulator 9 and the suction jet pump 7, the nozzle 10 of the suction jet pump 7 as a calibration nozzle or Calibration device acts so that at the control input 13 Fuel pump 5 of the dynamic pressure of the suction jet pump 7 is present.
- the fuel pump 5 is expediently regulated such that the flow rate of the suction jet pump 7 constant is.
- the nozzle 10 of the suction jet pump 7 a relatively small Diameter so that the design pressure for the suction jet pump 7 equal to the desired system pressure in the supply line 2 is. This way you can use the fuel pump 5 the system pressure can be controlled directly. This is the provided in the embodiment of FIG. 1 Pressure regulator 9 unnecessary.
- Pressure regulator 9 unnecessary.
- the fuel pump 5 includes a pumping station designated 16, which as a side channel pumping station is formed, an electronically commutated DC motor 17 and control electronics 18 for the DC motor 17.
- the control electronics 18, the DC motor 17 and the pumping station 16 are arranged in a housing 19. With 20 is the fuel inlet, with 21 the fuel outlet designated.
- the control electronics 18 include the pressure sensor 14, which can be addressed via the control input 13.
- the fuel pump 5 is from the fuel inlet 20 to the fuel outlet 21 flows completely with fuel, the Fuel cools the DC motor 17 during operation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Jet Pumps And Other Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Brushless Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung einer Kraftstoffversorgungseinrichtung gemäß der Erfindung mit Rücklaufleitung und Regelung der Kraftstoffpumpe über den Rücklaufstaudruck einer Saugstrahlpumpe,
- Fig. 2
- eine schematische Darstellung einer Kraftstoffversorgungseinrichtung gemäß der Erfindung mit Rücklaufleitung und Regelung der Kraftstoffpumpe über den Systemstaudruck,
- Fig. 3
- eine schematische Darstellung einer Kraftstoffpumpe gemäß der Erfindung und
- Fig. 4
- eine schematische Schnittansicht einer Saugstrahlpumpe.
- 1
- Tank
- 2
- Zuleitung
- 3
- Motor
- 4
- Rücklaufleitung
- 5
- Kraftstoffpumpe
- 6
- Schwalltopf
- 7
- Saugstrahlpumpe
- 8
- Kraftstoffilter
- 9
- Druckregler
- 10
- Düse
- 11
- Treibstrahl
- 12
- Saugstrahl
- 13
- hydraulischer Steuereingang
- 14
- Drucksensor
- 15
- Abschaltventil
- 16
- Pumpwerk
- 17
- Gleichstrommotor
- 18
- Steuerelektronik
- 19
- Gehäuse
- 20
- Kraftstoff-Einlaß
- 21
- Kraftstoff-Auslaß
- 22
- Rückschlagventil
Claims (9)
- Kraftstoffversorgungseinrichtung für eine Brennkraftmaschine, insbesondere als Kraftstoffversorgungseinrichtung in Verbindung mit einem Kraftfahrzeug-Kraftstofftank, mit wenigstens einer elektrisch betriebenen Kraftstoffpumpe, die in einem Schwalltopf angeordnet ist und Kraftstoff aus dem Schwalltopf in eine Kraftstoff-Zuleitung zum Motor fördert, und mit wenigstens einer Kraftstoff-Rücklaufleitung vom Motor oder von einem Bypass in der Zuleitung, dadurch gekennzeichnet, daß die Kraftstoffpumpe (5) eine elektronische Steuerung und wenigstens einen hydraulischen Steuereingang (13) aufweist und daß der hydraulische Steuereingang (13) der Kraftstoffpumpe (5) an die Kraftstoff-Zuleitung und/oder die Kraftstoff-Rücklaufleitung angeschlossen ist.
- Kraftstoffversorgungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerung der Kraftstoffpumpe (5) mit dieser zu einer Baueinheit zusammengefaßt ist.
- Kraftstoffversorgungseinrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Kraftstoffpumpe (5) wenigstens einen Drucksensor (14) umfaßt, der mit dem Steuereingang (13) in Wirkverbindung steht.
- Kraftstoffversorgungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in der Rücklaufleitung (4) eine Kalibriereinrichtung vorgesehen ist, deren Staudruck an dem hydraulischen Steuereingang (13) der Kraftstoffpumpe (5) anliegt.
- Kraftstoffversorgungseinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß an die Rücklaufleitung (4) eine Saugstrahlpumpe (7) zur Befüllung des Schwalltopfs (6) während des Betriebs der Kraftstoffpumpe (5) angeschlossen ist und daß die Saugstrahlpumpe (7) als Kalibriereinrichtung dient.
- Kraftstoffversorgungseinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Saugstrahlpumpe (7) so ausgelegt ist, daß der Druck in der Rücklaufleitung (4) dem Druck in der Zuleitung (2) entsprechen kann.
- Kraftstoffpumpe für eine Brennkraftmaschine, insbesondere für eine Kraftstoffversorgungseinrichtung in einem Kraftfahrzeug, mit einem Gleichstrommotor und einem Pumpwerk als kraftstoffdurchströmbare Baugruppe, gekennzeichnet durch Mittel zur Steuerung der Pumpe, die wenigstens einen hydraulischen Steuereingang (13) umfassen und mit dem Pumpwerk (16) und dem Gleichstrommotor (17) zu einer Baugruppe, vorzugsweise in einem Gehäuse (19), zusammengefaßt sind.
- Kraftstoffpumpe nach Anspruch 7, dadurch gekennzeichnet, daß die Steuerung wenigstens einen Drucksensor (14) umfaßt.
- Kraftstoffpumpe nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, daß als Gleichstrommotor (17) ein elektronisch kommutierter Gleichstrommotor vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948170 | 1999-10-07 | ||
DE1999148170 DE19948170B4 (de) | 1999-10-07 | 1999-10-07 | Kraftstoffversorgungseinrichtung sowie Kraftstoffpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1091116A2 true EP1091116A2 (de) | 2001-04-11 |
EP1091116A3 EP1091116A3 (de) | 2001-12-19 |
Family
ID=7924716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119705A Withdrawn EP1091116A3 (de) | 1999-10-07 | 2000-09-09 | Kraftstoffversorgungseinrichtung sowie Kraftstoffpumpe |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1091116A3 (de) |
JP (1) | JP2001173534A (de) |
CA (1) | CA2321606A1 (de) |
DE (1) | DE19948170B4 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2850709A1 (fr) * | 2003-01-29 | 2004-08-06 | Siemens Ag | Procede d'elaboration d'un signal de commande de base permettant de commander une pompe a carburant |
WO2006125702A1 (de) * | 2005-05-23 | 2006-11-30 | Robert Bosch Gmbh | Vorrichtung zum fördern von kraftstoff und verfahren zur überwachung eines filters der vorrichtung |
IT202000005620A1 (it) * | 2020-03-17 | 2021-09-17 | Vittorazi Motors S R L | Sistema di controllo dell'iniezione di carburante per un motore a combustione interna provvisto di una linea di ritorno del carburante |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10162772B4 (de) * | 2001-12-20 | 2005-11-03 | Ti Automotive (Neuss) Gmbh | Mediumfördervorrichtung |
DE102004007878A1 (de) * | 2004-02-18 | 2005-09-15 | Ti Automotive (Neuss) Gmbh | Kraftstoffversorgungssystem und Verfahren zur Regelung der Kraftstoffversorgung |
DE102005052144A1 (de) * | 2005-10-28 | 2007-05-03 | Bayerische Motoren Werke Ag | Kraftstoffversorgungsanlage für eine Brennkraftmaschine |
US8820298B2 (en) * | 2009-12-07 | 2014-09-02 | Denso International America, Inc. | Passive and semi-active diesel and gasoline fuel module |
TWM453728U (zh) * | 2012-11-22 | 2013-05-21 | Shen S Glory Inc | 燃油供給裝置及其中之回油三通管 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4926829A (en) * | 1988-11-28 | 1990-05-22 | Walbro Corporation | Pressure-responsive fuel delivery system |
US5579739A (en) * | 1994-01-14 | 1996-12-03 | Walbro Corporation | Returnless fuel system with demand fuel pressure regulator |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596519A (en) * | 1982-07-29 | 1986-06-24 | Walbro Corporation | Gear rotor fuel pump |
JPH0842419A (ja) * | 1994-07-29 | 1996-02-13 | Aisan Ind Co Ltd | インペラ式ポンプ |
DE19504217C2 (de) * | 1995-02-09 | 2002-11-14 | Bosch Gmbh Robert | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges |
US5659217A (en) * | 1995-02-10 | 1997-08-19 | Petersen; Christian C. | Permanent magnet d.c. motor having a radially-disposed working flux gap |
JP3591665B2 (ja) * | 1995-03-23 | 2004-11-24 | 株式会社デンソー | インタンク式燃料ポンプ |
US5697769A (en) * | 1995-09-25 | 1997-12-16 | Walbro Corporation | Fuel pump outlet assembly |
US5605133A (en) * | 1995-11-20 | 1997-02-25 | Walbro Corporation | Fuel rail pressure control |
DE19618707C2 (de) * | 1996-05-09 | 1998-12-17 | Siemens Ag | Verfahren und Vorrichtung zur Regelung eines Kraftstoffvolumenstromes |
DE19618932C2 (de) * | 1996-05-10 | 2001-02-01 | Siemens Ag | Vorrichtung und Verfahren zur Regelung des Kraftstoffdruckes in einem Hochdruckspeicher |
DE19735938B4 (de) * | 1997-08-19 | 2007-12-13 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
JPH11257176A (ja) * | 1998-03-06 | 1999-09-21 | Keihin Corp | 燃料ポンプ装置 |
-
1999
- 1999-10-07 DE DE1999148170 patent/DE19948170B4/de not_active Expired - Fee Related
-
2000
- 2000-09-09 EP EP00119705A patent/EP1091116A3/de not_active Withdrawn
- 2000-10-02 CA CA 2321606 patent/CA2321606A1/en not_active Abandoned
- 2000-10-06 JP JP2000307652A patent/JP2001173534A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4926829A (en) * | 1988-11-28 | 1990-05-22 | Walbro Corporation | Pressure-responsive fuel delivery system |
US5579739A (en) * | 1994-01-14 | 1996-12-03 | Walbro Corporation | Returnless fuel system with demand fuel pressure regulator |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2850709A1 (fr) * | 2003-01-29 | 2004-08-06 | Siemens Ag | Procede d'elaboration d'un signal de commande de base permettant de commander une pompe a carburant |
WO2006125702A1 (de) * | 2005-05-23 | 2006-11-30 | Robert Bosch Gmbh | Vorrichtung zum fördern von kraftstoff und verfahren zur überwachung eines filters der vorrichtung |
IT202000005620A1 (it) * | 2020-03-17 | 2021-09-17 | Vittorazi Motors S R L | Sistema di controllo dell'iniezione di carburante per un motore a combustione interna provvisto di una linea di ritorno del carburante |
WO2021186310A1 (en) * | 2020-03-17 | 2021-09-23 | Vittorazi Motors S.R.L. | System of fuel injection for an internal combustion engine provided with a line of fuel return |
US11739707B2 (en) | 2020-03-17 | 2023-08-29 | Vittorazi Motors S.R.L. | Control system of fuel injection for an internal combustion engine provided with a line of fuel return |
Also Published As
Publication number | Publication date |
---|---|
DE19948170B4 (de) | 2005-05-04 |
DE19948170A1 (de) | 2001-04-12 |
EP1091116A3 (de) | 2001-12-19 |
CA2321606A1 (en) | 2001-04-07 |
JP2001173534A (ja) | 2001-06-26 |
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