EP1336043B1 - Installation d'injection de carburant pour moteurs a combustion interne a comportement au demarrage ameliore - Google Patents
Installation d'injection de carburant pour moteurs a combustion interne a comportement au demarrage ameliore Download PDFInfo
- Publication number
- EP1336043B1 EP1336043B1 EP01996683A EP01996683A EP1336043B1 EP 1336043 B1 EP1336043 B1 EP 1336043B1 EP 01996683 A EP01996683 A EP 01996683A EP 01996683 A EP01996683 A EP 01996683A EP 1336043 B1 EP1336043 B1 EP 1336043B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- fuel
- pressure
- throttle
- control valve
- 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
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- 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
- F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
-
- 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
- F02M63/023—Means for varying pressure in common rails
- F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
- F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
Definitions
- the invention relates to a high-pressure fuel pump for a Fuel injection system according to the preamble of claim 1.
- a metering valve on the suction side of the pump elements of High-pressure fuel pump arranged, which is a more or causes less severe throttling.
- a so-called "zero-feed" throttle to provide by which small amounts of fuel from the Suction side of the pump elements in a fuel return or can drain to the suction side of the prefeed pump. This will prevents pressure on the suction side of the pump elements is constructed and thus the pump elements, the closing force of Suction valves can overcome. As a result, the suck Pump elements no fuel in push mode and the unwanted buildup of pressure in the common rail during the Sliding operation is prevented.
- the disadvantage of this solution is that the zero-feed throttle is also open when starting the engine and thus the pressure build-up on the suction side of the pump elements is delayed, or more difficult. As a result, the required Internal combustion engine a high starting speed and starts only after a certain time.
- High-pressure fuel pumps are known where a controllable Throttle between the pre-feed pump and the suction side of the Pump elements of the high-pressure fuel pump is provided.
- the Control of the throttle via a control unit of the High-pressure fuel pump and an electrically operated Control valve.
- a disadvantage of these high-pressure fuel pumps are the permanent load of the controller, the electrical Energy demand of the control valve and the possibility that in the High-pressure fuel pump impermissibly high pressures during the Sliding operation occur.
- the startup behavior one equipped with such a high-pressure fuel pump Internal combustion engine unsatisfactory.
- the invention is based on the object High-pressure fuel pump for a fuel injection system to provide the starting behavior of the Internal combustion engine is improved and at the same time Pressure build-up in the high-pressure fuel pump in overrun mode effectively prevented.
- the throttle is closed during startup, so that the pressure build-up on the suction side of the pump elements is faster and thus the starting behavior of the internal combustion engine is improved.
- the throttle is controlled by a loaded with the fuel pressure on the pressure side of the feed pump control valve, the control of the throttle is simple and reliable manner.
- a control unit of the fuel injection system is not needed for this purpose. As a result, the control unit and the electrical system are relieved and simplifies the wiring harness.
- the throttle closes when the fuel pressure on the pressure side of the feed pump falls below a first reference value, so that in all operating conditions in which the fuel supply to the high-pressure fuel pump is deficient, the throttle is closed and thus the entire of the Pre-feed pump funded fuel is the pump elements available.
- Control valve also the inflow of fuel into the High-pressure fuel pump for lubrication controls, so both Functions, namely the control of the throttle and the inflow to lubricate fuel into the high-pressure fuel pump with a valve can be done easily and inexpensively.
- the Control valve is a cascade valve, and that the control valve the inflow of fuel into the high pressure fuel pump to Lubrication in several stages controls, so on the one hand it is ensured that the high-pressure fuel pump always is sufficiently lubricated and on the other hand is ensured sufficient for the pump elements at low speeds Fuel is available.
- Throttle on the drain side with an opening into the tank Return line with the suction side of the pre-feed pump or with the lubrication of the high-pressure fuel pump is connected, so that regardless of the drain-side interconnection of the throttle the advantages of the invention can be used.
- the pressure control valve a lock or a Control valve is and / or that a control unit to control the Fuel injection system is provided, so depending on the Control concept of fuel injection system the pressure in common rail is controllable by a blocking or a flow control valve.
- the Pre-feed pump a gear pump by the High-pressure fuel pump or internal combustion engine is driven.
- the speed and thus the capacity of the Pre-feed pump directly from the speed of the internal combustion engine depends on the pressure build-up on the suction side of the Pump elements when starting the engine relative slow, so the advantages of the invention High-pressure fuel pump or the invention Fuel injection system particularly advantageous for carrying come.
- FIG. 1 shows a state-of-the-art common-rail injection system the technology shown schematically.
- a prefeed pump 1 sucks via a supply line 3 fuel not shown a tank 5 at.
- the fuel in a pre-filter. 7 and a filter with Water separator 9 filtered.
- the prefeed pump 1 is designed as a gear pump and has a first pressure relief valve 11. Suction side becomes the prefeed pump throttled by a first throttle 13. A pressure side 15 of the prefeed pump 1 supplies a High-pressure fuel pump 17 with fuel.
- the High-pressure fuel pump 17 is as a radial piston pump with executed three pump elements 19 and drives the Pre-feed pump 1 on.
- On the suction side of the pump elements 19 is ever a suction valve 21 is provided.
- the pump elements 19 are each a check valve 23rd provided, which prevents the under high pressure standing fuel, which of the pump elements 19 in a common rail 25 has been conveyed into the pump elements 19 can flow back.
- the high pressure lines of the Fuel injection system are in Figs. 1 to 5 with drawn thick lines while under low pressure standing areas of the fuel injection system with thin lines are shown.
- the common rail 25 supplies one or more in FIG. 1 not shown injectors with fuel over a High pressure line 27.
- a switching valve 33 can in the return line 29th Fuel also in the supply line 3 of the Pre-feed pump 1 are transported, so that at low temperatures reduces the danger of scorching becomes.
- the high-pressure fuel pump 17 is from the prefeed pump 1 on the one hand with fuel for the pump elements 19 and on the other hand supplied with fuel for lubrication.
- the Amount of fuel used to lubricate the High-pressure fuel pump 17 is used, via a first Control valve 35 and a second throttle 37 controlled.
- the pressure on the pressure side 15 of the Pre-feed pump 1 is not sufficient to a piston 39 of the first Control valve 35 against the spring force of a spring 41 to move.
- the first control valve 35 is in Figure 1 shown closed.
- the piston 39 moves against the Spring force of the spring 41 to the left and gives the line 43 free.
- Via the line 43 and the second throttle 37 flows Fuel for lubrication of the high-pressure fuel pump 17 in their crankcase.
- the high-pressure fuel pump 17 supplies via a Distribution line 45 and the pump elements 19 with Fuel.
- a Metering valve 47 is provided to control the flow rate of the High-pressure fuel pump 17 is between the pressure side 15th the prefeed pump 1 and the distribution line 45 .
- the metering valve 47 is a Flow control valve, which by a not shown Controlled control unit of the fuel injection system becomes.
- the pump elements 19 are thus on the Metering valve 47 throttled on the suction side.
- a third throttle 49 is provided, which is also referred to below as the zero-feed throttle.
- the zero flow throttle 49 the fuel from the Distribution line 45 in the crankcase of Drain high-pressure fuel pump 17 and there for lubrication the high-pressure fuel pump 17 can be used.
- the Outflow of fuel through the Nuil manufacture throttle 49 is the above-mentioned pressure build-up in the distribution line 45 at Sliding operation due to the leakage of the closed Metering valve 47 prevents.
- a disadvantage of this solution is that the zero-feed throttle 49th always open, and thus especially at low speeds, as they are e.g. during commissioning of the internal combustion engine occur, the desired pressure build-up in the distribution line 45th by the outflow of fuel through the zero-feed throttle 49 is prevented.
- FIGS. 2 to 5 show various embodiments of a fuel injection system according to the invention, wherein the same reference numerals are used for the same components and reference is made to the description of FIG.
- the first control valve 35 is parallel to one of the System ventilation serving fourth throttle 53 switched so that with the beginning of the promotion of the feed pump 1 also Fuel for lubrication in the high-pressure fuel pump 17th arrives.
- the zero-feed throttle 49 connects to this Embodiment, the distribution line 45 with the Return line 29.
- the second control valve 45 has a piston 57, with the pressure of the pressure side of the feed pump. 1 is charged. If the pressure of the pressure side 15 is low, is a ball 59 by a spring 61 in a sealing seat 63rd pressed and thus closes the second control valve 55th Once the pressure on the pressure side 15 of the prefeed pump.
- the control of Zero-feed throttle 49 integrated into the first control valve 35 is designed as a cascade valve, i.e. the fuel for lubrication of the high-pressure fuel pump 1 can at low pressure on the pressure side 15 of the Pre-feed pump 1 through the system ventilation serving fourth Throttle 53 in the crankcase of the high-pressure fuel pump 17th stream.
- the pressure on the pressure side 15 of the Pre-feed pump 1 exceeds a first reference value opens the first control valve and outputs a fifth throttle 65, the is connected parallel to the fourth throttle 53, free.
- Embodiment according to Figure 4 is the first Control valve 35 also designed as a cascade valve.
- the Piston 39 of the first control valve 35 has an annular groove 69, which with reaching a first reference value on the Pressure side 15 of the feed pump 1 is such that the Zero-feed throttle 49 is connected to a drain line 71.
- the drain line 71 opens into the supply line 3 of Pre-feed pump 1.
- Fuel injection system is a diagram in FIG shown in which a flow 73 over a speed n is applied.
- a first line 75 shows the flow rate of the Pre-feed pump 1 as a function of the speed n.
- a second Line 77 shows the fuel demand of a High-pressure fuel pump 1 according to the prior art.
- the technology essentially consists of the speed-dependent flow rate of the pump elements 19 and the differential pressure dependent volume flow through the Zero feed throttle 49 together.
- At the intersection 79 between first line 75 and second line 75 is the starting speed of one with a fuel injection system according to the prior art equipped internal combustion engine achieved. In the present Example, the starting speed is 133 revolutions per Minute.
- a third line 81 shows the fuel demand one with a Equipped according to the invention fuel injection system Internal combustion engine.
- the speed-dependent fuel requirement 81 the high-pressure fuel pump 17 according to the invention depends only on the delivery of the pump elements 19 and is thus over the entire speed range below the fuel demand one Internal combustion engine according to the prior art (see second Line 77).
- the intersection 83 is also between third line 81 and first line 75 at a lower Rpm reached.
- the Start speed one with the inventive Fuel injection system equipped internal combustion engine 116 Revolutions per minute. That the internal combustion engine starts faster, the starter and the electrical system are less loaded and a start is also under less favorable environmental conditions still possible.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Claims (8)
- Pompe à carburant à haute pression pour un système d'injection de carburant d'un moteur à combustion interne, avec au moins un élément de pompe (19), avec une première pompe d'alimentation (1), avec une soupape de dosage (47), la première pompe d'alimentation (1) refoulant du carburant depuis un réservoir (5) jusqu'à un côté d'aspiration du ou des éléments de pompe (19) et le débit de carburant refoulé par la première pompe d'alimentation (1) vers le côté d'aspiration du ou des éléments de pompe (19) étant réglable par la soupape de dosage (47), et avec un étranglement commandable (49) pour limiter l'échappement de carburant du côté d'aspiration du ou des éléments de pompe (19),
caractérisée en ce que
l'étranglement (49) est commandé par une soupape de commande (55, 35) soumise à la pression du carburant sur le côté de refoulement (15) de la première pompe d'alimentation (1), de telle façon que l'étranglement (49) se ferme, lorsque la pression de carburant sur le côté de refoulement (15) de la première pompe d'alimentation (1) descend en dessous d'une première valeur de référence, et que l'étranglement (49) soit raccordé à une conduite de raccordement (45), qui relie la soupape de dosage (47) et le côté d'aspiration du ou des éléments de pompe (19). - Pompe à carburant à haute pression selon la revendication 1,
caractérisée en ce que
la soupape de commande (35) commande également le débit de carburant dans la pompe à carburant à haute pression (17) pour la lubrification. - Pompe à carburant à haute pression selon la revendication 1 ou 2,
caractérisée en ce que
la soupape de commande (35) est une soupape en cascade et la soupape de commande (35) commande en plusieurs étapes le débit de carburant dans la pompe à carburant à haute pression (17) pour la lubrification. - Pompe à carburant à haute pression selon l'une quelconque des revendications précédentes,
caractérisée en ce que
l'étranglement (49) est intégré dans la soupape de commande (55, 35). - Pompe à carburant à haute pression selon l'une quelconque des revendications précédentes,
caractérisée en ce que
l'étranglement (49) est raccordé du côté de la sortie à une conduite de retour (29) débouchant dans le réservoir (5). - Pompe à carburant à haute pression selon l'une quelconque des revendications 1 à 4,
caractérisée en ce que
l'étranglement (49) est raccordé du côté de la sortie à une conduite d'alimentation de la première pompe d'alimentation (1). - Pompe à carburant à haute pression selon l'une quelconque des revendications 1 à 5,
caractérisée en ce que
l'étranglement (49) est raccordé du côté de la sortie à la lubrification de la pompe à carburant à haute pression (17). - Pompe à carburant à haute pression selon l'une quelconque des revendications précédentes,
caractérisée en ce que
la première pompe d'alimentation (1) est une pompe à engrenages, et la première pompe d'alimentation (1) est entraínée par la pompe à carburant à haute pression (17) ou par le moteur à combustion interne.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10057244 | 2000-11-18 | ||
DE10057244A DE10057244A1 (de) | 2000-11-18 | 2000-11-18 | Kraftstoffeinspritzanlage für Brennkraftmaschinen mit verbessertem Startverhalten |
PCT/DE2001/004317 WO2002040857A2 (fr) | 2000-11-18 | 2001-11-16 | Installation d'injection de carburant pour moteurs a combustion interne a comportement au demarrage ameliore |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1336043A2 EP1336043A2 (fr) | 2003-08-20 |
EP1336043B1 true EP1336043B1 (fr) | 2005-02-09 |
Family
ID=7663786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01996683A Expired - Lifetime EP1336043B1 (fr) | 2000-11-18 | 2001-11-16 | Installation d'injection de carburant pour moteurs a combustion interne a comportement au demarrage ameliore |
Country Status (6)
Country | Link |
---|---|
US (1) | US6772734B2 (fr) |
EP (1) | EP1336043B1 (fr) |
JP (1) | JP3999657B2 (fr) |
KR (1) | KR100793621B1 (fr) |
DE (2) | DE10057244A1 (fr) |
WO (1) | WO2002040857A2 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1321663A3 (fr) * | 2001-12-19 | 2003-07-02 | Robert Bosch Gmbh | Dispositif d'injection de combustible pour moteur à combustion interne |
DE10205187A1 (de) * | 2002-02-08 | 2003-08-21 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
KR100539209B1 (ko) * | 2002-08-29 | 2005-12-27 | 주식회사 두원정공 | 고압 서플라이 펌프 |
US6755625B2 (en) * | 2002-10-07 | 2004-06-29 | Robert H. Breeden | Inlet throttle valve |
DE10247564A1 (de) * | 2002-10-11 | 2004-04-22 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Common-Rail-Kraftstoffeinspritzsystems für Brennkraftmaschinen |
DE10302043A1 (de) * | 2002-10-31 | 2004-05-19 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe mit Kugelventil im Niederdruck-Einlass |
WO2004040128A1 (fr) * | 2002-10-31 | 2004-05-13 | Robert Bosch Gmbh | Pompe haute pression d'alimentation en carburant comprenant un clapet a bille dans l'admission basse pression |
JPWO2005075813A1 (ja) * | 2004-02-06 | 2007-08-02 | ボッシュ株式会社 | 燃料供給装置 |
DE102004016943B4 (de) | 2004-04-06 | 2006-06-29 | Siemens Ag | Verfahren zum Steuern einer Kraftstoffzuführeinrichtung einer Brennkraftmaschine |
DE102005033638A1 (de) * | 2005-07-19 | 2007-01-25 | Robert Bosch Gmbh | Kraftstoff-Fördereinrichtung, insbesondere für eine Brennkraftmaschine |
DE102006013165A1 (de) * | 2006-03-22 | 2007-09-27 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe und Kraftstoffeinspritzsystem für eine Brennkraftmaschine |
DE102006018702A1 (de) | 2006-04-21 | 2007-10-25 | Robert Bosch Gmbh | Kraftstoff-Hochdruck-Fördereinrichtung |
JP4672637B2 (ja) * | 2006-11-02 | 2011-04-20 | 三菱重工業株式会社 | エンジンの燃料噴射装置 |
DE102007000855B4 (de) * | 2006-12-27 | 2020-06-10 | Denso Corporation | Kraftstofffördergerät und Speicherkraftstoffeinspritzsystem, das dieses aufweist |
DE102007006945A1 (de) | 2007-02-13 | 2008-08-14 | Robert Bosch Gmbh | Kraftstoffüberströmventil für eine Kraftstoffeinspritzeinrichtung und Kraftstoffeinspritzeinrichtung mit Kraftstoffüberströmventil |
US7690361B2 (en) * | 2007-09-28 | 2010-04-06 | Cummins Inc. | System and method for metering fuel in a high pressure pump system |
DE102007052665A1 (de) | 2007-11-05 | 2009-05-07 | Robert Bosch Gmbh | Kraftstoffüberströmventil für eine Kraftstoffeinspritzeinrichtung und Kraftstoffeinspritzeinrichtung mit Kraftstoffüberströmventil |
DE102009028023A1 (de) * | 2009-07-27 | 2011-02-03 | Robert Bosch Gmbh | Hochdruck-Einspritzsystem mit Kraftstoffkühlung aus Niederdruckbereich |
DE102010001834A1 (de) * | 2010-02-11 | 2011-08-11 | Robert Bosch GmbH, 70469 | Verfahren zur Versorgung einer Hochdruckpumpe in einem Kraftstoffeinspritzsystem einer Brennkraftmaschine mit Kraftstoff sowie Kraftstoffeinspritzsystem |
JP5825693B2 (ja) * | 2010-07-14 | 2015-12-02 | ボルボ ラストバグナー アーベー | 圧力コントロールされるブリード機能を伴う燃料噴射システム |
ITMI20120938A1 (it) * | 2012-05-30 | 2013-12-01 | Bosch Gmbh Robert | Dispositivo fluidodinamico e impianto di alimentazione del carburante comprendente detto dispositivo fluidodinamico |
KR20140057025A (ko) * | 2012-11-02 | 2014-05-12 | 현대자동차주식회사 | Lpg 직접 분사 시스템 |
GB2510846B (en) * | 2013-02-14 | 2018-12-26 | Ford Global Tech Llc | A method of recuperating energy from a motor vehicle |
GB201600768D0 (en) * | 2016-01-15 | 2016-03-02 | Delphi Internat Operations Luxembourg S À R L | High pressure fuel pumps |
DE102016212233B4 (de) * | 2016-07-05 | 2021-09-23 | Ford Global Technologies, Llc | Direkteinspritzende aufgeladene Brennkraftmaschine mit Kraftstoffhochdruckpumpe |
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CH674243A5 (fr) * | 1987-07-08 | 1990-05-15 | Dereco Dieselmotoren Forschung | |
DE4224981C2 (de) * | 1992-07-29 | 2003-06-26 | Bosch Gmbh Robert | Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges |
JP3842331B2 (ja) * | 1995-05-26 | 2006-11-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関の燃料供給のための燃料供給装置及び内燃機関を運転する方法 |
DE19548278B4 (de) * | 1995-12-22 | 2007-09-13 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
DE19549108A1 (de) * | 1995-12-29 | 1997-07-03 | Bosch Gmbh Robert | System zur Kraftstoffhochdruckerzeugung für ein in Brennkraftmaschinen eingesetztes Kraftstoffeinspritzsystem |
DE19618707C2 (de) * | 1996-05-09 | 1998-12-17 | Siemens Ag | Verfahren und Vorrichtung zur Regelung eines Kraftstoffvolumenstromes |
DE19630938C5 (de) | 1996-07-31 | 2008-02-14 | Siemens Ag | Kraftstoffzuleitung mit einem Volumenstromregelventil und Volumenstromregelventil |
DE19731102C2 (de) * | 1997-07-19 | 2003-02-06 | Bosch Gmbh Robert | System zum Betreiben eines Kraftstoffversorgungssystems für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE19742180C2 (de) * | 1997-09-24 | 1999-07-08 | Siemens Ag | Einspritzsystem für eine Brennkraftmaschine und Verfahren zum Regeln eines Einspritzsystems |
DE19757655C2 (de) * | 1997-12-23 | 2002-09-26 | Siemens Ag | Verfahren und Vorrichtung zur Funktionsüberwachung eines Drucksensors |
DE19834120A1 (de) * | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage einer Brennkraftmaschine |
DE19838812C1 (de) * | 1998-08-26 | 2000-04-20 | Siemens Ag | Verfahren und Vorrichtung zum Einstellen eines Druckes zwischen einer Vorförderpumpe und einer Hochdruckpumpe eines Einspritzsystems |
DE19846157A1 (de) * | 1998-10-07 | 2000-04-13 | Bosch Gmbh Robert | Pumpenanordnung zur Kraftstoffhochdruckerzeugung |
DE19933567C1 (de) | 1999-07-16 | 2001-02-01 | Siemens Ag | Einspritzsystem für eine Brennkraftmaschine |
US6439199B2 (en) * | 2000-04-20 | 2002-08-27 | Bosch Rexroth Corporation | Pilot operated throttling valve for constant flow pump |
-
2000
- 2000-11-18 DE DE10057244A patent/DE10057244A1/de not_active Ceased
-
2001
- 2001-11-16 WO PCT/DE2001/004317 patent/WO2002040857A2/fr active IP Right Grant
- 2001-11-16 KR KR1020027009154A patent/KR100793621B1/ko not_active IP Right Cessation
- 2001-11-16 EP EP01996683A patent/EP1336043B1/fr not_active Expired - Lifetime
- 2001-11-16 US US10/169,379 patent/US6772734B2/en not_active Expired - Fee Related
- 2001-11-16 DE DE50105329T patent/DE50105329D1/de not_active Expired - Lifetime
- 2001-11-16 JP JP2002543149A patent/JP3999657B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1336043A2 (fr) | 2003-08-20 |
KR20020063005A (ko) | 2002-07-31 |
WO2002040857A2 (fr) | 2002-05-23 |
DE50105329D1 (de) | 2005-03-17 |
US20030089341A1 (en) | 2003-05-15 |
JP3999657B2 (ja) | 2007-10-31 |
DE10057244A1 (de) | 2002-06-06 |
US6772734B2 (en) | 2004-08-10 |
JP2004514087A (ja) | 2004-05-13 |
KR100793621B1 (ko) | 2008-01-11 |
WO2002040857A3 (fr) | 2002-09-06 |
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