DE10212870A1 - Fuel supply system of IC engine with high pressure injection has valve fitted in HP pump leakage pipe - Google Patents
Fuel supply system of IC engine with high pressure injection has valve fitted in HP pump leakage pipeInfo
- Publication number
- DE10212870A1 DE10212870A1 DE2002112870 DE10212870A DE10212870A1 DE 10212870 A1 DE10212870 A1 DE 10212870A1 DE 2002112870 DE2002112870 DE 2002112870 DE 10212870 A DE10212870 A DE 10212870A DE 10212870 A1 DE10212870 A1 DE 10212870A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- line
- low
- supply system
- 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- Withdrawn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
Classifications
-
- 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
- F02D33/006—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 depending on engine operating conditions, e.g. start, stop or ambient conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/38—Pumps characterised by adaptations to special uses or conditions
- F02M59/42—Pumps characterised by adaptations to special uses or conditions for starting of engines
-
- 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
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- 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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
-
- 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
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/60—Fuel-injection apparatus having means for facilitating the starting of engines, e.g. with valves or fuel passages for keeping residual pressure in common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Aufgabe der Erfindung ist es, ein Kraftstoffversorgungssystem einer Brennkraftmaschine mit Hochdruckeinspritzung mit einer Niederdruckkraftstoffpumpe, einer Hochdruckpumpe und einer daran angeschlossenen Leckageleitung, einer Niederdruckleitung und einer Hochdruckleitung mit daran angeschlossenem Hochdruckeinspritzsystem zur Verfügung zu stellen, bei dem ein durch eine Leckage in der Hochdruckpumpe bedingter Druckabfall unter einen erforderlichen Minimaldruck verhindert wird, was dadurch erreicht wird, dass in der Leckageleitung (5) ein Sperrventil (6) und in der Niederdruckleitung (3) eine auf den Betriebsdruck reagierende Vorrichtung angeordnet ist und das Sperrventil (6) unterhalb eines Mindestdruckes in der Niederdruckleitung (3) aus einer Durchflussstellung in eine Sperrstellung geschaltet ist.The object of the invention is to provide a fuel supply system of an internal combustion engine with high-pressure injection with a low-pressure fuel pump, a high-pressure pump and a leakage line connected to it, a low-pressure line and a high-pressure line with a high-pressure injection system connected to it, in which a pressure drop caused by a leak in the high-pressure pump a required minimum pressure is prevented, which is achieved in that a check valve (6) is arranged in the leakage line (5) and a device which reacts to the operating pressure is arranged in the low pressure line (3) and the check valve (6) is below a minimum pressure in the low pressure line (3) is switched from a flow position into a blocking position.
Description
Die Erfindung betrifft ein Kraftstoffversorgungssystem einer Brennkraftmaschine mit Hochdruckeinspritzung mit einer Niederdruckkraftstoffpumpe, einer Hochdruckpumpe mit einer daran angeschlossenen Leckageleitung, einer Niederdruckleitung und einer Hochdruckleitung mit daran angeschlossenem Hochdruckeinspritzsystem. The invention relates to a fuel supply system of an internal combustion engine High pressure injection with a low pressure fuel pump, a high pressure pump with a connected leakage line, a low pressure line and one High pressure line with connected high pressure injection system.
Solche Kraftstoffversorgungssysteme sind bekannt, wie etwa ein Druckfluidspeisesystem für die Versorgung von Hochdruck-Sammelleitungen, DE 196 52 831 A1, welche den Nachteil aufweisen, dass an der Hochdruckpumpe angeschlossene Leckageleitungen dazu führen können, dass der Kraftstoffdruck zwischen einer Niederdruckkraftstoffpumpe und einer Hochdruckpumpe bereits nach kurzzeitigem Motorstillstand vollständig abgebaut sein kann. Ein solcher Druckabfall im Niederdruckbereich eines Kraftstoffversorgungssystems, welcher etwa von übergroßen Spaltmaßen in der Hochdruckpumpe herrührt, führte jedoch zu ungewünschten Startverzögerungen einer Brennkraftmaschine beim Heißstart oder einem Wiederholstart. Such fuel supply systems are known, such as a pressurized fluid feed system for the supply of high-pressure manifolds, DE 196 52 831 A1, which the Disadvantage that leakage lines connected to the high pressure pump can cause fuel pressure between a low pressure fuel pump and a high pressure pump completely after a short engine standstill can be degraded. Such a drop in pressure in the low pressure range Fuel supply system, which has about large gaps in the High pressure pump originates, but led to undesired start delays Internal combustion engine on hot start or a repeat start.
Aufgabe der Erfindung ist es, ein Kraftstoffversorgungssystem zur Verfügung zu stellen, bei dem ein durch eine Leckage in der Hochdruckpumpe bedingter Druckabfall unter einen erforderlichen Minimaldruck verhindert wird. The object of the invention is to provide a fuel supply system, in which a pressure drop caused by a leak in the high pressure pump below a required minimum pressure is prevented.
Die Lösung dieser Aufgabe wird in Verbindung mit den Oberbegriffsmerkmalen erfindungsgemäß durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebene technische Lehre vermittelt. Dadurch, dass in der drucklosen Leckageleitung der Hochdruckpumpe ein Sperrventil eingesetzt ist, welches direkt oder indirekt vom Kraftstoffdruck im Niederdruckbereich geöffnet oder geschlossen wird, lässt sich im Niederdruckbereich ein gewünschter Mindestdruck von etwa 2 bis 6 bar aufrechterhalten, so dass insbesondere als Benzindirekteinspritzer ausgebildete Brennkraftmaschinen bei Heißstarts oder Wiederholstarts ohne Startverzögerung anspringen. Ein vom tatsächlichen Druck im Niederdruckbereich gesteuertes Sperrventil in der Leckageleitung der Hochdruckpumpe ist im Betrieb einer solchen Brennkraftmaschine regelmäßig in eine Durchflussstellung geschaltet und wird erst bei Stillstand der Brennkraftmaschine und einem übermäßigen Druckabfall beispielsweise federunterstützt in eine Sperrstellung geschaltet. Nach wieder in Betrieb setzen einer Brennkraftmaschine und entsprechend aufgebautem Druck in der Niederdruckleitung wird das Sperrventil von einem Stellantrieb gegen diese Federkraft in eine Durchflussstellung zurückgestellt. Hierdurch wird in vorteilhafter Weise erreicht, dass bei kurzzeitig abgestelltem Motor ein Druckabfall im Niederdruckbereich eines Kraftstoffversorgungssystems auf einfache und effektive Weise verhindert werden kann. The solution to this problem is in connection with the generic features according to the invention specified in the characterizing part of claim 1 teaches technical teaching. Because in the unpressurized leakage line the High pressure pump a check valve is used, which is directly or indirectly from Fuel pressure in the low pressure range is opened or closed in the Maintain a desired minimum pressure of about 2 to 6 bar, so that internal combustion engines designed in particular as direct gasoline injectors Start hot starts or repeat starts without delay. One from Actual pressure in the low pressure range controlled check valve in the leakage line the high pressure pump is in regular operation in such an internal combustion engine Flow position switched and is only when the engine and an excessive pressure drop, for example, spring-assisted in a blocking position connected. After putting an internal combustion engine back into operation and accordingly built-up pressure in the low pressure line, the check valve is actuated by an actuator returned to a flow position against this spring force. This will in advantageously achieved that when the engine is switched off briefly, a pressure drop in Low pressure area of a fuel supply system in a simple and effective way can be prevented.
Weitere vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen. Further advantageous embodiments of the invention result from the Dependent claims.
Gemäß einer besonders bevorzugten Ausführungsform der Erfindung ist als auf den Druck in der Niederdruckleitung reagierende Vorrichtung eine Druckableitung mit einer Stellvorrichtung angeordnet, die als Stellantrieb des Sperrventils ausgebildet ist. Diese vorteilhafte Ausgestaltung der Erfindung erlaubt das unmittelbare Steuern des Sperrventils über den Kraftstoffdruck im Niederdruckbereich, ohne dass aufwendige Steuerungsmechanismen zur Verwirklichung der Lösung der Aufgabe eingesetzt werden müssen. According to a particularly preferred embodiment of the invention is as on the Pressure in the low pressure line reacting device with a pressure discharge Adjusting device arranged, which is designed as an actuator of the check valve. This advantageous embodiment of the invention allows direct control of the Check valve on the fuel pressure in the low pressure range, without being complex Control mechanisms are used to achieve the solution of the task have to.
Gemäß einer anderen Ausführungsform der Erfindung kann die auf den Druck in der Niederdruckleitung reagierende Vorrichtung mit einer Druckmessvorrichtung ausgestattet sein, die ein elektrisches Signal erzeugt, das einen elektrisch betätigten Stellantrieb einer Stellvorrichtung am Sperrventil in Bewegung setzt und dieses je nach Betriebsdruck öffnet oder schließt. Auch mit einem solchen elektrisch gesteuerten Sperrventil kann der Druck im Niederdruckbereich über einen längeren Zeitraum des Stillstandes einer Brennkraftmaschine aufrechterhalten und eine Startverzögerung ausgeschlossen werden. Nachfolgend sind zwei Ausführungsbeispiele der Erfindung anhand der Zeichnungen näher beschrieben. Es zeigen: According to another embodiment of the invention, the pressure in the Low pressure line responding device equipped with a pressure measuring device be that generates an electrical signal that an electrically operated actuator Set the control device on the shut-off valve in motion and open it depending on the operating pressure or closes. Even with such an electrically controlled check valve, the pressure can in the low pressure range over a long period of standstill Maintain internal combustion engine and a start delay can be excluded. Below are two exemplary embodiments of the invention with reference to the drawings described in more detail. Show it:
Fig. 1 eine Skizze eines Kraftstoffversorgungssystems mit druckgesteuertem Stellantrieb und Fig. 1 is a sketch of a fuel supply system with a pressure-controlled actuator and
Fig. 2 ein Kraftstoffversorgungssystem mit elektrisch betätigtem Stellantrieb. Fig. 2 shows a fuel supply system with an electrically operated actuator.
Das Kraftstoffversorgungssystem einer Brennkraftmaschine mit Hochdruckeinspritzung besteht im wesentlichen aus einer Niederdruckkraftstoffpumpe 1, einer Hochdruckpumpe 2 mit einer daran angeschlossenen drucklosen Leckageleitung 5, einer Niederdruckleitung 3 und einer Hochdruckleitung 4 mit einem daran angeschlossenen Hochdruckeinspritzsystem 8. Der Kraftstoff, welcher aus einem Kraftstofftank 7 durch die Niederdruckkraftstoffpumpe 1 zur Hochdruckpumpe 2 befördert wird, fließt bei geöffneter Stellung eines in der Leckageleitung 5 angeordneten Sperrventils 6 drucklos in den Kraftstofftank 7 zurück. Bei Stillstand der Brennkraftmaschine kann bedingt durch die Spaltmaße in der Hochdruckpumpe 2 ein beschleunigter Druckabfall im Niederdruckbereich des Kraftstoffversorgungssystems erfolgen, so dass das in der Leckageleitung 5 angeordnete Sperrventil 6 dann geschlossen wird. In der Niederdruckleitung 3 ist hierzu eine auf den Betriebsdruck reagierende Vorrichtung angeordnet, die das Sperrventil 6 unterhalb eines Mindestdruckes von etwa 2 bis 6 bar in der Niederdruckleitung 3 aus einer Durchflussstellung in eine Sperrstellung schaltet. The fuel supply system of an internal combustion engine with high-pressure injection essentially consists of a low-pressure fuel pump 1 , a high-pressure pump 2 with a pressure-free leakage line 5 connected to it , a low-pressure line 3 and a high-pressure line 4 with a high-pressure injection system 8 connected to it . The fuel, which is conveyed from a fuel tank 7 through the low-pressure fuel pump 1 to the high-pressure pump 2 , flows back into the fuel tank 7 without pressure when a blocking valve 6 arranged in the leakage line 5 is in the open position. When the internal combustion engine is at a standstill, an accelerated pressure drop in the low-pressure region of the fuel supply system can take place due to the gap dimensions in the high-pressure pump 2 , so that the check valve 6 arranged in the leakage line 5 is then closed. In the low pressure line 3 this means responsive to the operation of the printing apparatus is arranged, which the check valve 6 below a minimum pressure of about 2 bar turns from a flow position to a blocking position to 6 in the low pressure line. 3
Wie in Fig. 1 skizziert ist, kann die auf den Druck in der Niederdruckleitung 3 reagierende Vorrichtung als Druckableitung 10 und mit einer Stellvorrichtung 9 ausgebildete Vorrichtung ausgeführt sein, die als Stellantrieb des Sperrventils 6 fungiert. Der Betriebsdruck im Niederdruckbereich betätigt hier also unmittelbar das Sperrventil 6. As outlined in FIG. 1, the device reacting to the pressure in the low-pressure line 3 can be designed as a pressure line 10 and with an adjusting device 9 , which functions as an actuator of the shut-off valve 6 . The operating pressure in the low pressure range thus directly actuates the shut-off valve 6 .
Eine weitere Ausführungsform einer auf den Betriebsdruck reagierende Vorrichtung ist in Fig. 2 dargestellt, bei der in der Niederdruckleitung 3 eine Druckmessvorrichtung 12 angeordnet ist, die über eine elektrische Verbindung 13 den Stellantrieb einer Stellvorrichtung 11 betätigt. A further embodiment of a device reacting to the operating pressure is shown in FIG. 2, in which a pressure measuring device 12 is arranged in the low-pressure line 3 and actuates the actuator of an adjusting device 11 via an electrical connection 13 .
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002112870 DE10212870A1 (en) | 2002-03-22 | 2002-03-22 | Fuel supply system of IC engine with high pressure injection has valve fitted in HP pump leakage pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002112870 DE10212870A1 (en) | 2002-03-22 | 2002-03-22 | Fuel supply system of IC engine with high pressure injection has valve fitted in HP pump leakage pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10212870A1 true DE10212870A1 (en) | 2003-10-02 |
Family
ID=27798082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002112870 Withdrawn DE10212870A1 (en) | 2002-03-22 | 2002-03-22 | Fuel supply system of IC engine with high pressure injection has valve fitted in HP pump leakage pipe |
Country Status (1)
Country | Link |
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DE (1) | DE10212870A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005003592A1 (en) * | 2005-01-26 | 2006-08-03 | Daimlerchrysler Ag | Fuel supply device e.g. for supplying internal combustion engine with fuel, has electrically driven fuel pump which delivers fuel from fuel reservoir via fuel filter to internal combustion engine |
NL1031682C2 (en) * | 2006-04-12 | 2009-01-27 | Hyundai Motor Co Ltd | Fuel supply system of LPI engine and method for the forced return of fuel. |
CN110735745A (en) * | 2019-10-24 | 2020-01-31 | 上海三一重机股份有限公司 | Automatic oil way emptying device, engineering vehicle and automatic oil way emptying method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4443836A1 (en) * | 1994-12-09 | 1996-06-13 | Bosch Gmbh Robert | Combustion engine fuel supply appts. |
US5558068A (en) * | 1994-05-31 | 1996-09-24 | Zexel Corporation | Solenoid valve unit for fuel injection apparatus |
DE19539885A1 (en) * | 1995-05-26 | 1996-11-28 | Bosch Gmbh Robert | Fuel supply system for IC engine |
DE10106095A1 (en) * | 2001-02-08 | 2002-08-29 | Bosch Gmbh Robert | Fuel system, method for operating the fuel system, computer program and control and / or regulating device for controlling the fuel system |
DE10125942A1 (en) * | 2001-05-29 | 2002-12-12 | Bosch Gmbh Robert | Fuel system for supplying fuel for an internal combustion engine and internal combustion engine |
-
2002
- 2002-03-22 DE DE2002112870 patent/DE10212870A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5558068A (en) * | 1994-05-31 | 1996-09-24 | Zexel Corporation | Solenoid valve unit for fuel injection apparatus |
DE4443836A1 (en) * | 1994-12-09 | 1996-06-13 | Bosch Gmbh Robert | Combustion engine fuel supply appts. |
DE19539885A1 (en) * | 1995-05-26 | 1996-11-28 | Bosch Gmbh Robert | Fuel supply system for IC engine |
DE10106095A1 (en) * | 2001-02-08 | 2002-08-29 | Bosch Gmbh Robert | Fuel system, method for operating the fuel system, computer program and control and / or regulating device for controlling the fuel system |
DE10125942A1 (en) * | 2001-05-29 | 2002-12-12 | Bosch Gmbh Robert | Fuel system for supplying fuel for an internal combustion engine and internal combustion engine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005003592A1 (en) * | 2005-01-26 | 2006-08-03 | Daimlerchrysler Ag | Fuel supply device e.g. for supplying internal combustion engine with fuel, has electrically driven fuel pump which delivers fuel from fuel reservoir via fuel filter to internal combustion engine |
NL1031682C2 (en) * | 2006-04-12 | 2009-01-27 | Hyundai Motor Co Ltd | Fuel supply system of LPI engine and method for the forced return of fuel. |
CN110735745A (en) * | 2019-10-24 | 2020-01-31 | 上海三一重机股份有限公司 | Automatic oil way emptying device, engineering vehicle and automatic oil way emptying method |
CN110735745B (en) * | 2019-10-24 | 2023-02-07 | 上海三一重机股份有限公司 | Automatic oil way emptying device, engineering vehicle and automatic oil way emptying method |
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