EP0937204B1 - Verfahren zum erzeugen von unter hochdruck stehendem kraftstoff sowie system zur kraftstoffhochdruckerzeugung - Google Patents
Verfahren zum erzeugen von unter hochdruck stehendem kraftstoff sowie system zur kraftstoffhochdruckerzeugung Download PDFInfo
- Publication number
- EP0937204B1 EP0937204B1 EP98951269A EP98951269A EP0937204B1 EP 0937204 B1 EP0937204 B1 EP 0937204B1 EP 98951269 A EP98951269 A EP 98951269A EP 98951269 A EP98951269 A EP 98951269A EP 0937204 B1 EP0937204 B1 EP 0937204B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure pump
- pressure
- low
- fuel
- pump
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 7
- 239000000314 lubricant Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims 10
- 238000005461 lubrication Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
- F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/06—Motor parameters of internal combustion engines
- F04B2203/0605—Rotational speed
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/15—By-passing over the pump
Definitions
- the invention relates to a method for generating and Feeding high pressure fuel to one High-pressure storage space of a fuel injection system, in particular a common rail injection system, one Internal combustion engine, using a low pressure pump pumped fuel from a tank as a backing pump and the Intake side of a high pressure pump is supplied and where part of the pumped by the low pressure pump Fuel used to lubricate the high pressure pump becomes.
- the invention further relates to a system for high-pressure fuel generation according to the preamble of claim 2 and claim 5.
- the funding volume or funding capacity of Low pressure pump and high pressure pump must be designed that there is always a sufficient high pressure Amount of fuel is available. Because the high pressure pump usually driven depending on the engine speed is the amount of fuel available compared to the requested or required amount of fuel usually too high, such as when the driver of one Motor vehicle at high speed "from the gas" and itself the vehicle is in overrun. The of the High pressure pump delivered fuel amount is still very high, but it is from the injection system of the Internal combustion engine not required. When you reach one In this case, the threshold pressure is usually one on the High pressure side provided pressure control valve opened, and a connection to the tank is established.
- the Fuel is therefore pumped in a circle and heats up with this high-pressure side, so-called rail pressure control, very much strong, which entails dangers. Besides, that is Use of plastic return lines critical and the overall engine efficiency deteriorates with the high power consumption by the high pressure pump.
- the object of the invention is the method of the type described at the beginning improve that the above disadvantages do not occur, that is in particular a lowering of the high Temperature levels in the return and tank as well as a Improvement in overall engine efficiency is achieved. Furthermore, in all operating states and Adequate and reliable lubrication the high pressure pump with fuel.
- This task is carried out in a method of the type mentioned solved according to the invention in that the delivery rate of Low pressure pump or the delivery pressure on the delivery side the low pressure pump depending on the Determine sensor and a control device currently required amount of fuel is controlled and that of the flow of the low pressure pump one of the pressure on the Conveyor side essentially independent constant Lubricant flow amount is diverted, and a remaining one Residual flow is fed to the suction side of the high pressure pump becomes.
- the delivery rate the low pressure pump controlled and in a preferred manner is regulated (volume flow control)
- this can be done by the control or regulation of the speed of the Low pressure pump can be reached.
- the speed of the low-pressure pump is advantageous by means of a speed sensor and the signal of the Speed sensor returned to the control device, so that the one to be set according to the volume requirement Speed is regulated.
- Delivery pressure on the delivery ropes of the low pressure pump in Depends on the amount of fuel required or is regulated (discharge pressure control)
- This can be done at Use of a pressure-controlled low pressure pump can be achieved directly from the Control device is controlled.
- the discharge pressure on the The delivery side of the low pressure pump can also be Activate one at the output of the low pressure pump provided variable throttle device, such as by Moving a throttle valve. It could also be a clocked solenoid valve in one Pressure relief line, which is the delivery side of the Low pressure pump connects to the tank, controlled be to the pressure on the delivery side of the Low pressure pump on the desired one, from the Control device to hold certain value.
- such Falls fuel would be delivered in a circular manner in the low pressure circuit be, but this is not a disadvantage Power consumption of the low pressure pump or heating of the Fuel leads.
- the present invention also has the object based, a system for high-pressure fuel generation provide with which the inventive method is feasible.
- Low pressure pump (claim 3) can be one of the moment required volume of fuel corresponding volume flow the low pressure pump can be set, and that on the Delivery side of the low pressure pump provided Flow control valve provides a constant Reliable supply of lubricant to the high pressure pump.
- a pressure-controllable low-pressure pump can be used to specify the delivery pressure on the delivery side of the low-pressure pump (claim 6).
- a gear pump with a downstream variable throttle device is provided, the latter of which can then be controlled by the control device (claim 7).
- pressure sensors are advantageously provided which cooperate with the control device to form a pressure control circuit.
- Throttle device or a returning branch line with a controllable valve can be a non-controllable one Low pressure feed pump are used, the Pressure control at the downstream point by the Throttle device or the control of the solenoid valve he follows.
- FIG. 1 shows schematically the low pressure circuit High pressure fuel generation system with an Low pressure circuit realized demand regulation for the Fuel metering of the high pressure pump.
- a Fuel tank 2 leads a line 4 to the intake side of a Low pressure pump 6.
- the delivery side 8 of the low pressure pump 6 is with a flow control valve 10 and in parallel with it the suction side 12 one with the reference number 14 indicated high pressure pump connected, the high pressure side 16 to the high-pressure storage space (rail) one does not shown fuel injection system leads.
- the Flow control valve leads to the lubrication circuit 17 of the High pressure pump 14.
- Control device 20 interacting with measurement sensors 18 provided in which the current fuel consumption of the Internal combustion engine determined and accordingly Control signal is generated.
- the control signal is called Control signal for the speed of the as Electric fuel pump trained low pressure pump 6 to this led.
- a speed sensor 22 provides one Measured value to the control device 20, there for regulation the speed and thus the volume flow Low pressure pump 6 is processed.
- the amount of fuel is a from the flow control valve 10 Inlet pressure and the speed of the high pressure pump in the branched substantially independent lubricant flow and via the lubrication circuit 17 in the pump inner housing 24 of the High pressure pump 14 passed.
- the remaining amount is about Intake side 12 in the suction chamber 25 of the high pressure pump 14 and promoted from there to the rail.
- the one through the Control device 20 according to the requested or required fuel flow volume Low pressure pump 6 is speed-controllable Electric fuel pump promoted.
- a safety valve 26 which adds fuel to the high pressure pump 14 Falling below a predetermined pressure of about 1 bar interrupts so that in the event of a leak or the like, the engine is turned off.
- FIG 4 shows a further embodiment of a Delivery pressure controlled low pressure circuit, in which the Low pressure pump 6 'from a gear pump with a downstream pressure control is formed.
- the Low pressure pump 6 For regulation of the pressure on the delivery side of the gear pump is one Branch line 30 is provided, which leads back to tank 2, a clocked solenoid valve 32 in the branch line 30 is provided.
- a pressure sensor 34 provided that cooperates with the control device 20.
- the output signal of the control device 20 is in this Case a control signal for the solenoid valve 32, which in Dependence on the measured value of the pressure sensor 34 predetermined pressure on the delivery side of the Low pressure pump 6 'depending on the requested Fuel quantity controls or regulates.
- the delivery rate is High pressure pump in the delivery pressure control in Low pressure circuit according to Figure 4 depending on the Inlet pressure at different speeds or in Dependence of the speed at different inlet pressures shown.
- Figure 7 shows the amount of lubricant in Dependence of the speed at different inlet pressures; the amount of lubricant is essentially independent of the speed of the high pressure pump and the inlet pressure. It it is pointed out that the representations of the delivery quantities or lubricant quantities calculated Sizes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Solchenfalls sind in vorteilhafter Weise Drucksensoren vorgesehen, welche zur Ausbildung eines Druckregelkreises mit der Steuereinrichtung zusammenwirken.
- Figur 1
- eine schematische Darstellung des Niederdruck-Kreises des erfindungsgemäßen Systems zur Kraftstoffhochdruckerzeugung bei Volumenstromsteuerung;
- Figur 2
- die Fördermenge der Hochdruckpumpe bei der Volumenstromsteuerung bei unterschiedlichen Drosselgraden;
- Figur 3
- die geförderte Schmiermittelmenge in Abhängigkeit von der Drehzahl der Hochdruckpumpe bei unterschiedlichen Drosselgraden;
- Figur 4
- eine schematische Darstellung des Niederdruck-Kreises des erfindungsgemäßen Systems zur Kraftstoffhochdruckerzeugung bei Förderdrucksteuerung;
- Figur 5
- die Fördermenge der Hochdruckpumpe in Abhängigkeit vom Zulaufdruck auf der Ansaugseite bei verschiedenen Umdrehungen der Hochdruckpumpe;
- Figur 6
- die Fördermenge der Hochdruckpumpe in Abhängigkeit von der Drehzahl bei verschiedenen Zulaufdrücken; und
- Figur 7
- die geförderte Schmiermittelmenge in Abhängigkeit von der Drehzahl der Hochdruckpumpe bei unterschiedlichem Zulaufdruck.
Claims (10)
- Verfahren zum Erzeugen und Zuführen von unter Hochdruck stehendem Kraftstoff zu einem Hochdruckspeicherraum eines Kraftstoffeinspritzsystems einer Brennkraftmaschine, wobei mittels einer Niederdruckpumpe als Vorpumpe Kraftstoff aus einem Tank gefördert und der Ansaugseite einer Hochdruckpumpe zugeführt wird, und wobei ein Teil des von der Niederdruckpumpe geförderten Kraftstoffs zur Schmierung der Hochdruckpumpe verwendet wird, dadurch gekennzeichnet, dass die Fördermenge der Niederdruckpumpe oder der Förderdruck auf der Förderseite der Niederdruckpumpe in Abhängigkeit der durch Meßwertaufnehmer und eine Steuereinrichtung bestimmten momentan benötigten Kraftstoffmenge gesteuert wird und dass vom Förderstrom der Niederdruckpumpe eine vom Druck auf der Förderseite im wesentlichen unabhängige konstante Schmierstrommenge abgezweigt wird und ein verbleibender Reststrom der Ansaugseite der Hochdruckpumpe zugeführt wird.
- System zur Kraftstoffhochdruckerzeugung bei einem Kraftstoffeinspritzsystem, insbesondere bei einem Common-Rail-Einspritzsystem, einer Brennkraftmaschine, mit einer aus einem Tank (2) ansaugenden Niederdruckpumpe (6), einer von der Niederdruckpumpe (6) gespeisten und in einen Hochdruckspeicherraum fördernden Hochdruckpumpe (14) und mit einem den zu fördernden Kraftstoff als Schmiermittel verwendenden Schmierkreis für die Schmierung der Hochdruckpumpe (14), dadurch gekennzeichnet, dass die Niederdruckpumpe (6) volumenstromsteuerbar und von einer Steuereinrichtung (20) ansteuerbar ist, mit der ein der momentan benötigten Kraftstoffmenge entsprechender Volumenstrom bei der Niederdruckpumpe (6) einstellbar ist, und dass die Förderseite (8) der Niederdruckpumpe (6) mit einem zu dem Schmierkreis der Hochdruckpumpe führenden Stromregelventil (10) und parallel dazu mit der Ansaugseite (12) der Hochdruckpumpe (14) kommuniziert.
- System nach Anspruch 2, dadurch gekennzeichnet, dass die Niederdruckpumpe (6) eine drehzahlsteuerbare Elektrokraftstoffpumpe ist.
- System nach Anspruch 3, gekennzeichnet durch einen der drehzahlsteuerbaren Elektrokraftstoffpumpe zugeordneten Drehzahlaufnehmer (22), der mit der Steuereinrichtung (20) als Rückkopplung zusammenwirkt, so dass eine Drehzahlregelung der Elektrokraftstoffpumpe bewirkt wird.
- System zur Kraftstoffhochdruckerzeugung bei einem Kraftstoffeinspritzsystem, insbesondere bei einem Common-Rail-Einspritzsystem, einer Brennkraftmaschine, mit einer aus einem Tank (2) ansaugenden Niederdruckpumpe (6), einer von der Niederdruckpumpe (6) gespeisten und in einen Hochdruckspeicherraum fördernden Hochdruckpumpe (14) und mit einem den zu fördernden Kraftstoff als Schmiermittel verwendenden Schmierkreis für die Schmierung der Hochdruckpumpe (14), dadurch gekennzeichnet, dass der Förderdruck auf der Förderseite der Niederdruckpumpe (6') in Abhängigkeit der momentan benötigten Kraftstoffmenge durch eine Steuereinrichtung (20) steuerbar ist, und dass die Förderseite der Niederdruckpumpe (6') mit einem zu dem Schmierkreis der Hochdruckpumpe (14) führenden Stromregelventil (10) und parallel dazu mit der Ansaugseite (12) der Hochdruckpumpe (14) kommuniziert.
- System nach Anspruch 5, dadurch gekennzeichnet, dass die Niederdruckpumpe (6') druckregelbar und durch die Steuereinrichtung (20) ansteuerbar ist.
- System nach Anspruch 5, dadurch gekennzeichnet, dass die Niederdruckpumpe (6') von einer Zahnradpumpe mit einer nachgeschalteten variablen Drosseleinrichtung gebildet ist, die durch die Steuereinrichtung (20) ansteuerbar ist.
- System nach Anspruch 7, dadurch gekennzeichnet, dass die nachgeschaltete variable Drosseleinrichtung ein Drosselschieber ist.
- System nach Anspruch 7, dadurch gekennzeichnet, dass die nachgeschaltete variable Drosseleinrichtung eine ein getaktetes und durch die Steuereinrichtung (20) ansteuerbares in einer zum Tank (2) zurückführenden Zweigleitung (30) vorgesehenes Magnetventil (32) ist.
- System nach einem der Ansprüche 2 bis 8, gekennzeichnet durch ein Sicherheitsventil (26) auf der Förderseite der Niederdruckpumpe (6, 6'), welches bei Unterschreiten eines vorbestimmten Drucks die Kraftstoffzufuhr zur Hochdruckpumpe (14) unterbricht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19739653 | 1997-09-10 | ||
DE19739653A DE19739653A1 (de) | 1997-09-10 | 1997-09-10 | Verfahren zum Erzeugen von unter Hochdruck stehendem Kraftstoff sowie System zur Kraftstoffhochdruckerzeugung |
PCT/DE1998/002606 WO1999013215A1 (de) | 1997-09-10 | 1998-09-04 | Verfahren zum erzeugen von unter hochdruck stehendem kraftstoff sowie system zur kraftstoffhochdruckerzeugung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0937204A1 EP0937204A1 (de) | 1999-08-25 |
EP0937204B1 true EP0937204B1 (de) | 2002-03-20 |
Family
ID=7841820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951269A Expired - Lifetime EP0937204B1 (de) | 1997-09-10 | 1998-09-04 | Verfahren zum erzeugen von unter hochdruck stehendem kraftstoff sowie system zur kraftstoffhochdruckerzeugung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6230688B1 (de) |
EP (1) | EP0937204B1 (de) |
JP (1) | JP4212655B2 (de) |
KR (1) | KR20000068787A (de) |
DE (2) | DE19739653A1 (de) |
WO (1) | WO1999013215A1 (de) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19746563A1 (de) * | 1997-10-22 | 1999-04-29 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
DE19900564C2 (de) | 1999-01-09 | 2003-09-18 | Bosch Gmbh Robert | Common-Rail-System |
DE19900562C2 (de) * | 1999-01-09 | 2000-11-16 | Bosch Gmbh Robert | Common-Rail-System |
DE19933569B4 (de) * | 1999-07-16 | 2004-09-30 | Siemens Ag | Einspritzsystem für eine Brennkraftmaschine |
DE19939419A1 (de) * | 1999-08-20 | 2001-03-01 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung |
DE19954695A1 (de) * | 1999-11-13 | 2001-05-23 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem |
DE10001882A1 (de) * | 2000-01-19 | 2001-08-02 | Bosch Gmbh Robert | Verfahren zum Betrieb einer Vorförderpumpe eines Kraftstoffzumesssystems und Kraftstoffzumesssystem einer direkteinspritzenden Brennkraftmaschine |
DE10038555A1 (de) * | 2000-08-03 | 2002-02-21 | Bosch Gmbh Robert | Kraftstoffversorgungssystem für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE10127196A1 (de) * | 2001-06-05 | 2002-12-12 | Rolls Royce Deutschland | Verfahren zur Brennstoffversorgung sowie Brennstoffversorgungssystem für ein mit zumindest einer Fluggasturbine versehenes Flugzeug |
JP3849928B2 (ja) * | 2001-09-03 | 2006-11-22 | 株式会社デンソー | 燃料噴射ポンプ |
DE10148222A1 (de) * | 2001-09-28 | 2003-04-17 | Bosch Gmbh Robert | Verfahren zum Betrieb einer Brennkraftmaschine |
US6712037B2 (en) * | 2002-01-09 | 2004-03-30 | Visteon Global Technologies, Inc. | Low pressure direct injection engine system |
DE10240310A1 (de) * | 2002-08-31 | 2004-03-11 | Robert Bosch Gmbh | Kraftstoffsystem für eine Brennkraftmaschine |
JP3915718B2 (ja) | 2003-03-11 | 2007-05-16 | 株式会社デンソー | 燃料供給ポンプ |
DE102004045738B4 (de) * | 2004-09-21 | 2013-05-29 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine |
US8370006B2 (en) * | 2006-03-20 | 2013-02-05 | General Electric Company | Method and apparatus for optimizing a train trip using signal information |
US20090090331A1 (en) * | 2007-10-04 | 2009-04-09 | Ford Global Technologies, Llc | Volumetric Efficiency Based Lift Pump Control |
US8061329B2 (en) * | 2007-11-02 | 2011-11-22 | Ford Global Technologies, Llc | Lift pump control for a two pump direct injection fuel system |
US7640916B2 (en) | 2008-01-29 | 2010-01-05 | Ford Global Technologies, Llc | Lift pump system for a direct injection fuel system |
DE102008018603B4 (de) * | 2008-04-11 | 2024-09-26 | Volkswagen Ag | Steuerung einer Kraftstoffpumpe |
DE102008059117B4 (de) * | 2008-11-26 | 2011-07-28 | Continental Automotive GmbH, 30165 | Hochdruckpumpenanordnung |
DE102009031527B3 (de) * | 2009-07-02 | 2010-11-18 | Mtu Friedrichshafen Gmbh | Verfahren zur Steuerung und Regelung einer Brennkraftmaschine |
US20110226219A1 (en) * | 2010-03-17 | 2011-09-22 | Caterpillar Inc. | Fuel lubricated pump and common rail fuel system using same |
US8590510B2 (en) | 2010-08-24 | 2013-11-26 | Ford Global Technologies, Llc | Fuel system for a multi-fuel engine |
DE102010064374B3 (de) | 2010-12-30 | 2012-07-12 | Continental Automotive Gmbh | Kraftstoffeinspritzsystem einer Brennkraftmaschine sowie dazugehöriges Druckregelverfahren, Steuergerät und Kraftfahrzeug |
US8776764B2 (en) | 2011-01-04 | 2014-07-15 | Ford Global Technologies, Llc | Fuel system for a multi-fuel engine |
DE102011006203B4 (de) | 2011-03-28 | 2016-05-04 | Continental Automotive Gmbh | Regelverfahren zum Einstellen eines Drucks in einem Speichereinspritzsystem einer Brennkraftmaschine |
US9303605B2 (en) * | 2011-11-10 | 2016-04-05 | GM Global Technology Operations LLC | System and method for circulating fuel through a direct injection pump of a bi-fuel engine |
DE102011087055B4 (de) * | 2011-11-24 | 2013-11-07 | Continental Automotive Gmbh | Verfahren zum Betreiben eines Einspritzsystems |
US9587578B2 (en) | 2013-12-06 | 2017-03-07 | Ford Global Technologies, Llc | Adaptive learning of duty cycle for a high pressure fuel pump |
US9458806B2 (en) | 2014-02-25 | 2016-10-04 | Ford Global Technologies, Llc | Methods for correcting spill valve timing error of a high pressure pump |
US9243598B2 (en) | 2014-02-25 | 2016-01-26 | Ford Global Technologies, Llc | Methods for determining fuel bulk modulus in a high-pressure pump |
US9874185B2 (en) | 2014-05-21 | 2018-01-23 | Ford Global Technologies, Llc | Direct injection pump control for low fuel pumping volumes |
US10563611B2 (en) * | 2014-12-19 | 2020-02-18 | Ford Global Technologies, Llc | Fuel delivery system and method for operation of a fuel delivery system |
US9638153B2 (en) * | 2015-02-20 | 2017-05-02 | Ford Global Technologies, Llc | Method for cooling a direct injection pump |
DE102015207682B4 (de) * | 2015-04-27 | 2018-10-11 | Continental Automotive Gmbh | Verfahren zur Regelung einer Kraftstoffförderpumpe |
CN108798928B (zh) * | 2017-05-04 | 2022-07-15 | 罗伯特·博世有限公司 | 共轨式燃料喷射系统中燃料供应的控制方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2670684A (en) * | 1950-01-21 | 1954-03-02 | Volvo Ab | Fuel injection device for internalcombustion engines |
CA1040497A (en) * | 1975-03-17 | 1978-10-17 | Lloyd E. Johnson | Sealing in fuel injection pumps |
GB2028916B (en) * | 1978-08-23 | 1982-09-22 | Lucas Industries Ltd | Fuel supply system for internal combustion engine |
US4493623A (en) * | 1983-02-22 | 1985-01-15 | Chandler Evans Inc. | Oil lubricated main drive shaft for fuel pump |
DE3410911A1 (de) * | 1983-04-06 | 1984-10-11 | Ernst Dipl.-Ing. 4600 Dortmund Korthaus | Kolbenpumpe |
US5000668A (en) * | 1988-04-27 | 1991-03-19 | Diesel Kiki Co., Ltd. | Distribution-type fuel injection pump |
DE3943299A1 (de) * | 1989-12-29 | 1991-07-04 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen |
DE4126640B4 (de) * | 1991-08-12 | 2005-06-16 | Robert Bosch Gmbh | Pumpenanordnung mit einer Vorförderpumpe und einer Radialkolbenpumpe |
DE4401083A1 (de) * | 1994-01-15 | 1995-07-20 | Daimler Benz Ag | Für eine Brennkraftmaschine vorgesehene Kraftstoffeinspritzanlage |
DE4401074B4 (de) * | 1994-01-15 | 2007-01-18 | Robert Bosch Gmbh | Pumpenanordnung, insbesondere zur Förderung von Kraftstoff aus einem Vorratsbehälter zu einer Brennkraftmaschine |
DE19539885A1 (de) * | 1995-05-26 | 1996-11-28 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage und Verfahren zum Betreiben einer Brennkraftmaschine |
DE19534051A1 (de) * | 1995-09-14 | 1997-03-20 | Bosch Gmbh Robert | Verfahren zum Betrieb einer Kraftstoffeinspritzeinrichtung |
DE19549108A1 (de) * | 1995-12-29 | 1997-07-03 | Bosch Gmbh Robert | System zur Kraftstoffhochdruckerzeugung für ein in Brennkraftmaschinen eingesetztes Kraftstoffeinspritzsystem |
US5899136A (en) * | 1996-12-18 | 1999-05-04 | Cummins Engine Company, Inc. | Low leakage plunger and barrel assembly for high pressure fluid system |
-
1997
- 1997-09-10 DE DE19739653A patent/DE19739653A1/de not_active Ceased
-
1998
- 1998-09-04 WO PCT/DE1998/002606 patent/WO1999013215A1/de not_active Application Discontinuation
- 1998-09-04 KR KR1019997003403A patent/KR20000068787A/ko not_active Application Discontinuation
- 1998-09-04 JP JP51493599A patent/JP4212655B2/ja not_active Expired - Fee Related
- 1998-09-04 DE DE59803428T patent/DE59803428D1/de not_active Expired - Lifetime
- 1998-09-04 EP EP98951269A patent/EP0937204B1/de not_active Expired - Lifetime
- 1998-09-04 US US09/297,827 patent/US6230688B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19739653A1 (de) | 1999-03-11 |
DE59803428D1 (de) | 2002-04-25 |
KR20000068787A (ko) | 2000-11-25 |
WO1999013215A1 (de) | 1999-03-18 |
JP2001504920A (ja) | 2001-04-10 |
EP0937204A1 (de) | 1999-08-25 |
US6230688B1 (en) | 2001-05-15 |
JP4212655B2 (ja) | 2009-01-21 |
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