DE19741297A1 - Fuel supply system for IC engines - Google Patents
Fuel supply system for IC enginesInfo
- Publication number
- DE19741297A1 DE19741297A1 DE1997141297 DE19741297A DE19741297A1 DE 19741297 A1 DE19741297 A1 DE 19741297A1 DE 1997141297 DE1997141297 DE 1997141297 DE 19741297 A DE19741297 A DE 19741297A DE 19741297 A1 DE19741297 A1 DE 19741297A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- pressure
- internal combustion
- supply system
- line
- 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- Withdrawn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
- 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
- F02M37/04—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
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- 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
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
Description
Die Erfindung betrifft ein Brennstoffversorgungssystem einer Brennkraftmaschine nach dem Oberbegriff des Patentanspruchs.The invention relates to a fuel supply system of an internal combustion engine the preamble of the claim.
Bekannte Systeme weisen unterschiedliche Anordnungen von Bauteilen wie Druckregler, Differenzdruckregler usw. auf, mit denen zufriedenstellend eine Brennstoffversorgung einer Brennkraftmaschine erreicht wird.Known systems have different arrangements of components such as pressure regulators, Differential pressure regulator, etc., with which a fuel supply is satisfactory an internal combustion engine is reached.
Aus der DE 30 12 326 A1 ist jedoch bekannt, daß bei einem Start der Brennkraftma schine, nachdem diese eine längere Zeitspanne abgeschaltet war, für eine kurze Zeit unmittelbar nach dem Start ein zu geringer Brennstoffdruck im System herrscht, wo durch es zu einer unerwünschten Erhöhung der Anteile giftiger Abgasbestandteile kommt.From DE 30 12 326 A1, however, it is known that when starting the internal combustion engine appear after a long period of time, for a short time immediately after starting the fuel pressure in the system is too low, where by causing an undesirable increase in the proportions of toxic exhaust gas components is coming.
Es ist damit ein bekanntes Problem, daß beim Starten der Brennkraftmaschine sich erst der Brennstoffversorgungssystemdruck einstellen muß, bevor die Brennkraftmaschine anspringt. Die hierfür benötigte Anlaßzeitspanne wird von einem Motorbetreiber als äu ßerst unangenehm empfunden.It is therefore a known problem that only when starting the internal combustion engine the fuel system pressure must adjust before the engine starts. The engine start-up time required for this is specified by an engine operator felt extremely uncomfortable.
Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, Maßnahmen aufzu finden, mit denen ein beliebiges Brennstoffversorgungssystem ohne Zeitverzögerung auf vollen Systemdruck gelangt, wenn die Brennkraftmaschine gestartet wird.Proceeding from this, the invention is therefore based on the object of taking measures find any fuel supply system with no time delay on reaches full system pressure when the internal combustion engine is started.
Diese Aufgabe ist bei einem Brennstoffversorgungssystem gemäß Oberbegriff des An spruchs durch die im Kennzeichen genannten Merkmale gelöst.This task is in a fuel supply system according to the preamble of the An solved by the features mentioned in the license plate.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfol gend beschrieben. An embodiment of the invention is shown in the drawing and will follow described below.
Die Zeichnung zeigt schematisch ein Brennstoffversorgungssystem 1 für eine Brenn kraftmaschine, bestehend aus einem Brennstofftank 2, einer aus diesem saugenden elektrischen Brennstoffpumpe 3, einer die Brennstoffpumpe 3 mit einer Einspritzvorrich tung 4 der Brennkraftmaschine verbindenden Brennstoffleitung 5 und einem in der Brennstoffleitung 5 angeordneten Druckhalteventil 6.The drawing schematically shows a fuel supply system 1 for an internal combustion engine, comprising a fuel tank 2, an out of this absorbent electric fuel pump 3, a fuel pump 3 with a Einspritzvorrich tung 4 of the internal combustion engine connecting the fuel conduit 5 and, arranged in the fuel line 5 pressure holding valve. 6
Im Zuge der zur Brennkraftmaschine führenden Brennstoffleitung 5 ist ein bekanntes Reduzierdruckventil 7 angeordnet, das rücklauffrei arbeitet, oder ein Druckregelventil 8, das mit Brennstoffrücklauf in den Brennstofftank 2 arbeitet, wofür eine Rücklaufleitung 9 vorzusehen ist. Druckregelventil 8 und Rücklaufleitung 9 sind durch strichpunktierte Linien separiert, d. h. als alternative Ausbildung kenntlich gemacht.In the course of the fuel line 5 leading to the internal combustion engine, a known reducing pressure valve 7 is arranged, which works without return flow, or a pressure control valve 8 , which works with fuel return flow into the fuel tank 2 , for which purpose a return line 9 is to be provided. Pressure control valve 8 and return line 9 are separated by dash-dotted lines, ie identified as an alternative design.
Im Falle der Verwendung des Reduzierdruckventils 7 kann ein von der Brennstoffleitung 5 abzweigender, zum Brennstofftank 2 führender Leitungsabschnitt 10 vorgesehen sein, in dem ein Vordruckregelventil 11 angeordnet ist, das den Druck in der Brennstoffleitung 5 auf einen höheren Druck regelt als dem stromab des Reduzierdruckventils 7 herr schenden.In the case of using the Reduzierdruckventils 7 one branching from the fuel line 5, leading to the fuel tank 2 line section 10 can be provided in which a pre-pressure control valve 11 is arranged which regulates the pressure in the fuel line 5 at a higher pressure than the downstream of the Reduzierdruckventils 7 send mister.
Erfindungsgemäß ist nun vorgesehen, daß die Brennstoffleitung 5 stromauf des Druck halteventils 6 mit einem Druckspeicher 12 verbunden ist, dessen Brennstoffspeicher kammer 13 über ein parallel mit der Brennstoffpumpe 3 bestromtes Elektroventil 14 ge genüber der Brennstoffleitung 5 zu- und umgekehrt abschaltbar ist.According to the invention it is now provided that the fuel line 5 upstream of the pressure holding valve 6 is connected to a pressure accumulator 12 , the fuel storage chamber 13 via a parallel with the fuel pump 3 energized solenoid valve 14 ge compared to the fuel line 5 can be switched off and vice versa.
Mit dieser erfindungsgemäßen Ausgestaltung des Brennstoffversorgungssystems läßt sich folgende Funktion erreichen: bei laufender Brennkraftmaschine sind Brennstoffpum pe 3 und Elektroventil 14 bestromt. Damit fördert die Brennstoffpumpe 3 mit vorgege benem Förderdruck in die Brennstoffleitung 5 und damit zur Brennkraftmaschine oder im Falle der Verwendung eines Vordruckregelventils 11 in die Brennstoffleitung 5 zur Brennkraftmaschine und über den erwähnten Leitungsabschnitt 10 in den Brennstoff tank 2 zurück.With this embodiment of the fuel supply system according to the invention, the following function can be achieved: when the internal combustion engine is running, fuel pump 3 and solenoid valve 14 are energized. Thus, the fuel pump 3 promotes with pre-ben delivery pressure in the fuel line 5 and thus to the internal combustion engine or in the case of using a pressure control valve 11 in the fuel line 5 to the internal combustion engine and via the line section 10 mentioned in the fuel tank 2 back.
Über das bestromte, d. h. geöffnete Elektroventil 14 ist die Brennstoffspeicherkammer 13 des Druckspeichers 12 mit Brennstoff gefüllt, d. h. eine Speicherfeder 15 gespannt. The fuel storage chamber 13 of the pressure accumulator 12 is filled with fuel via the energized, ie opened, electric valve 14 , ie a storage spring 15 is tensioned.
Bei abgestellter Brennkraftmaschine kann der Brennstoffdruck in der Brennstoffleitung 5 über eine unbestimmte Zeitdauer durch das geschlossene Druckhalteventil 6 aufrechter halten bleiben, dieser entspannt sich jedoch danach durch Leckagen im Druckhalteventil 6 und des Einspritzsystems 4 der Brennkraftmaschine bzw. des erwähnten mit Rücklauf arbeitenden Druckregelventils 8. Der Druckregler ist im gespannten Zustand der Spei cherfeder 15 durch das nicht bestromte Elektroventil 14 abgeschaltet.When the internal combustion engine, the fuel pressure may be in the fuel line 5 via an indefinite period of time through the closed pressure holding valve 6 to remain keep an upright but it relaxes thereafter due to leakage in the pressure-holding valve 6 and the injection system 4 of the internal combustion engine or of the mentioned working with back pressure control valve. 8 The pressure regulator is switched off in the tensioned state of the spring 15 by the de-energized solenoid valve 14 .
Wird in diesem Zustand die Brennkraftmaschine erneut gestartet, beginnt die Brenn stoffpumpe 3 zu fördern und gleichzeitig wird durch das nun wieder geöffnete Elektro ventil 14 Brennstoff aus der Brennstoffspeicherkammer 13 unter dem Druck der Spei cherfeder 15 in die Brennstoffleitung 5 gepreßt, so daß diese mit dem Starten sofort unter Arbeitsdruck steht und die Brennkraftmaschine ohne Zeitverzug anspringen kann. Wegen der Inkompressibilität des Brennstoffs reicht eine sehr kleine Brennstoffmenge aus, den Druck in der Brennstoffleitung 5 bis zum Arbeitsdruck ansteigen zu lassen.If the internal combustion engine is started again in this state, the fuel pump 3 begins to be conveyed and at the same time fuel 14 is pressed out of the fuel storage chamber 13 under the pressure of the spring spring 15 into the fuel line 5 by the electric valve 14 which is now open, so that it is pressed with the Starting is immediately under working pressure and the engine can start without delay. Because of the incompressibility of the fuel, a very small amount of fuel is sufficient to let the pressure in the fuel line 5 rise to the working pressure.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997141297 DE19741297A1 (en) | 1997-09-19 | 1997-09-19 | Fuel supply system for IC engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997141297 DE19741297A1 (en) | 1997-09-19 | 1997-09-19 | Fuel supply system for IC engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19741297A1 true DE19741297A1 (en) | 1999-03-25 |
Family
ID=7842894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997141297 Withdrawn DE19741297A1 (en) | 1997-09-19 | 1997-09-19 | Fuel supply system for IC engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19741297A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026373A1 (en) * | 2000-05-27 | 2001-11-29 | Volkswagen Ag | High pressure fuel injection system for diesel motors forms a fuel reserve at the flow vessel in the supply circuit to be extracted by the high pressure pump for a constant fuel injection pressure at all motor speeds |
ES2173016A1 (en) * | 1999-12-17 | 2002-10-01 | Cabello Lopez Javier | Fuel and pressure regulator in an injection pump for diesel engines. |
WO2005038236A1 (en) * | 2003-09-19 | 2005-04-28 | Robert Bosch Gmbh | Fuel injection device for an internal combustion engine |
DE19962732B4 (en) * | 1999-12-23 | 2008-04-03 | Pierburg Gmbh | Electric cut-off valve |
EP2476890A1 (en) | 2011-01-13 | 2012-07-18 | Hydac Filtertechnik GmbH | Supply device with a fuel transport device and use of such a supply device |
WO2015034415A1 (en) * | 2013-09-04 | 2015-03-12 | Scania Cv Ab | Fuel system for a combustion engine, combustion engine with such a fuel system, vehicle with such a fuel system, and method for damping pressure fluctuations in a fuel system |
WO2016066407A1 (en) * | 2014-10-30 | 2016-05-06 | Robert Bosch Gmbh | Method for operating a fuel supply system for an internal combustion engine, and fuel supply system |
-
1997
- 1997-09-19 DE DE1997141297 patent/DE19741297A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2173016A1 (en) * | 1999-12-17 | 2002-10-01 | Cabello Lopez Javier | Fuel and pressure regulator in an injection pump for diesel engines. |
DE19962732B4 (en) * | 1999-12-23 | 2008-04-03 | Pierburg Gmbh | Electric cut-off valve |
DE10026373A1 (en) * | 2000-05-27 | 2001-11-29 | Volkswagen Ag | High pressure fuel injection system for diesel motors forms a fuel reserve at the flow vessel in the supply circuit to be extracted by the high pressure pump for a constant fuel injection pressure at all motor speeds |
WO2005038236A1 (en) * | 2003-09-19 | 2005-04-28 | Robert Bosch Gmbh | Fuel injection device for an internal combustion engine |
EP2476890A1 (en) | 2011-01-13 | 2012-07-18 | Hydac Filtertechnik GmbH | Supply device with a fuel transport device and use of such a supply device |
DE102011008484A1 (en) * | 2011-01-13 | 2012-07-19 | Hydac Filtertechnik Gmbh | Supply device with a fuel conveyor and use of a pertinent supply device |
WO2015034415A1 (en) * | 2013-09-04 | 2015-03-12 | Scania Cv Ab | Fuel system for a combustion engine, combustion engine with such a fuel system, vehicle with such a fuel system, and method for damping pressure fluctuations in a fuel system |
WO2016066407A1 (en) * | 2014-10-30 | 2016-05-06 | Robert Bosch Gmbh | Method for operating a fuel supply system for an internal combustion engine, and fuel supply system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1306548B1 (en) | Fuel injection apparatus in which the displacement control is improved | |
DE102006017541B4 (en) | Method for discharging high-pressure storage containers | |
DE102004009792B3 (en) | Fuel supply device for supplying the injectors to the combustion chambers of an internal combustion engine with fuel | |
EP1144851B1 (en) | Fuel injection system | |
DE10148218A1 (en) | Method for operating an internal combustion engine, computer program, control and / or regulating device, and fuel system for an internal combustion engine | |
DE19738397A1 (en) | Fuel injection system for an internal combustion engine | |
DE19630938C2 (en) | Fuel supply line with a volume flow control valve and volume flow control valve | |
DE102009044866B4 (en) | Fuel supply system for an internal combustion engine | |
DE4422552C1 (en) | Method for injecting fuel into the combustion chamber of an internal combustion engine | |
DE3223293A1 (en) | FUEL SYSTEM FOR A GAS TURBINE ENGINE | |
DE4211651B4 (en) | Fuel injection device, in particular pump nozzle for internal combustion engines | |
EP3440329B2 (en) | Fuel supply system for fuel systems and method for supplying an engine with fuel | |
DE19741297A1 (en) | Fuel supply system for IC engines | |
WO2012028370A1 (en) | Delivery device of a fuel supply system of an internal combustion engine | |
DE102013002758B4 (en) | Flushing procedure for use with a fuel injector | |
DE19858084C1 (en) | Injection system with common rail high pressure pump, especially for vehicle internal combustion engine | |
WO2008003717A1 (en) | Method for reducing rail pressure in a common-rail injection system | |
DE10125942A1 (en) | Fuel system for supplying fuel for an internal combustion engine and internal combustion engine | |
DE102009003051A1 (en) | Method for filling a fuel system for motor vehicles | |
DE102009012689B4 (en) | Valve for blowing gas | |
DE19649139B4 (en) | Injection device for internal combustion engines | |
DE102012212892B4 (en) | Injection device for an internal combustion engine | |
DE3507853A1 (en) | METHOD FOR CONTROLLING THE FUEL INJECTION AMOUNT | |
DE102018125057B4 (en) | Device for exhaust aftertreatment and method for operating the device | |
DE19741296A1 (en) | Operating method for fuel injection system in motor vehicle internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: PIERBURG GMBH, 41460 NEUSS, DE |
|
8141 | Disposal/no request for examination |