EP1291518A2 - Vordrucksteueranordnung - Google Patents
Vordrucksteueranordnung Download PDFInfo
- Publication number
- EP1291518A2 EP1291518A2 EP02015742A EP02015742A EP1291518A2 EP 1291518 A2 EP1291518 A2 EP 1291518A2 EP 02015742 A EP02015742 A EP 02015742A EP 02015742 A EP02015742 A EP 02015742A EP 1291518 A2 EP1291518 A2 EP 1291518A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- chamber
- valve
- pressure control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- 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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
-
- 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
- F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/103—Mounting pumps on fuel tanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86035—Combined with fluid receiver
Definitions
- the invention relates to a pre-pressure control arrangement for the fuel supply from one in one Fuel tank pump arranged via a fuel line to a High-pressure fuel pump of an internal combustion engine with one in the fuel tank arranged pressure control valve, the fuel from the fuel line in the open state branches off and leads back into the fuel tank, the pressure control valve being a first and has a second chamber through a membrane actuating a valve closing member are separated from one another in a liquid-tight manner, the first chamber having at least one inlet opening which is connected to the fuel line via a first branch line, and has at least one outlet opening leading into the fuel tank, the second Chamber has a spring element that biases the valve closing member in the closing direction.
- the present invention is therefore based on the object of a form control arrangement to create, which avoids the disadvantages mentioned above.
- the second chamber of the pressure control valve has a second inlet opening, which via a second branch line with a Switching element is connected to the fuel line in such a way that different pressure levels are adjustable in the second chamber.
- the measures according to the invention now make it possible to reduce the emissions-relevant Arrange components in the fuel tank, so that a non-return fuel system with a continuous fuel line is feasible.
- Only one pressure regulator is used, the Control pressure can be controlled by adding a correction pressure.
- the invention Pre-pressure control arrangement ensures that the pressure of the fuel pump a component can be set to two pressure levels.
- the second chamber has a second outlet opening, and is in the second inlet opening a first nozzle with the diameter D1 is arranged.
- a second nozzle with the diameter D2 can be arranged in the second outlet opening, where D2 is greater than D1 and the nozzles are dimensioned such that the pressure drop above the two nozzles corresponds to the total pressure of the fuel pump, the switching element is a 2/2-way valve.
- a pressure relief valve can also be used be arranged in the pressure increase sought in the second chamber opens, the switching element being a 3/2-way valve.
- Figure 1 shows the fuel flow in a schematic form in a not shown Internal combustion engine with gasoline direct injection, being from a fuel tank 1 through a pump 2 via a fuel line 3 fuel to a high-pressure fuel pump 4 to be led.
- the high pressure fuel pump is mechanically driven, e.g. B. by a Camshaft of the internal combustion engine or the like.
- Form pressure control arrangement 5 To ensure that the fuel with a defined pressure level at the high-pressure fuel pump 4 is present, is next to the fuel pressure pump 2 in the fuel tank 1 a form control arrangement 5 is provided.
- Form pressure control arrangement 5 it is possible to have many emission-relevant components in the fuel tank 1 to concentrate, wherein only one fuel line 3 is led to the outside and leads the fuel to the high-pressure fuel pump 4.
- Branches from the fuel line 3 a first branch line 6, which has a first inlet opening 7 of a pressure control valve 8 is connected. If the pressure control valve 8 is in the open position, the first branch line 6 and the inlet opening 7 in a first chamber 9 and via the outlet opening 10 in the Fuel tank 1 returned.
- a closing member 11 of the pressure control valve 8 is based on known Way from a valve closing member 13 arranged on a membrane 12, wherein the membrane separates the first chamber 9 from a second chamber 14 and the valve closing member then moved to an open position when a pressure level in the first chamber 9 is present, which generates a force that is greater than the force caused by the pressure level the second chamber 14 is generated.
- the pre-pressure control arrangement 5 has a second branch line 15 on, in which a switching element 16 is arranged, and to a second inlet opening 17 of the pressure control valve 8 leads. Fuel can pass through the second inlet opening 17 be guided into the second chamber 14. Furthermore, points in the present embodiment the pressure control valve 8 also has a second outlet opening 18. Both in the inlet opening 17 is a nozzle 19 and a nozzle 20 is arranged in the outlet opening 18.
- the nozzle 20 is included executed a diameter D2 which is larger than the diameter D1 of the nozzle 19th
- a spring element 21 is provided in the second chamber 14 in a known manner, that the valve closing member 11 biases in the closing direction.
- the switching element 16 is made in the present case from a simple 2/2-way valve.
- the form control arrangement 5 according to FIG. 1 now works as follows:
- a fuel pressure of approximately 4 bar in the fuel line In a first setting of the admission pressure control arrangement 5, a fuel pressure of approximately 4 bar in the fuel line.
- the electromagnetic 2/2-way valve 5 is in in this case de-energized, so that an atmospheric pressure of 1 bar in the second chamber 12 is present and only the spring force acts on the closing member 11.
- This spring force is like that set that the closing member 11 at a pressure in the first chamber 9 of more than 4 bar opens and fuel is returned via the outlet opening 10 in the fuel tank.
- the switching element 5 is opened and via the second branch line 15, fuel can pass through the second inlet opening 17 flow into the second chamber 14, with a pressure drop of .DELTA.P 4 bar is realized, which corresponds to the base pressure.
- a pressure drop occurs via the nozzle 20 realized from ⁇ P 2 - 3 bar, which corresponds to the switchable additional pressure.
- the valve closing member 13 is only larger at a pressure opens as 6 - 7 bar in the first chamber 9. So in this simple constructive way possible to quickly adjust the pressure supply for the fuel distribution device.
- the nozzles 19, 20 are measured so that the Sum of the pressure drops at the nozzles 19, 20 corresponds to the total pressure of the pump.
- the pressure drop of the nozzle 19 corresponds in particular to the base pressure of the pressure arrangement 5 and the pressure drop of the nozzle 20 the additional pressure, which with increased line losses or a very high engine load is required.
- the pressure adjustment speed is depending on the dead volume of the controlled system and the nozzle sizes. Increase large nozzles the adjustment speed, but also mean more volume loss of the fuel pump 2. Since both nozzles are subject to the same flow laws, the additional pressure due to edge influences such as fuel viscosity, fuel temperature or the like unaffected. It should be clear that the nozzles in the present embodiment are only shown schematically, needle nozzles or the like can also be used.
- FIG. 2 shows a further embodiment of the form control arrangement according to the invention 5 shown.
- a pressure relief valve 22 is in place of the nozzle 20 second outlet opening 18 is arranged.
- This pressure relief valve 22 is also designed that it opens at a pressure of 6-7 bar. Now there is the connection with the atmosphere the second chamber 12 is no longer guaranteed via the outlet opening 18, a 3/2-way valve is used as switching element 16 in the present exemplary embodiment. A pressure adjustment from the base pressure to the increased pressure takes place in this one Embodiment faster, since no volume through the during the startup process Pressure relief valve 22 is lost.
- the pressure relief valve allows 22 an exact setting of the additional pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Figur 1
- eine erste Ausführungsform einer erfindungsgemäßen Vordrucksteueranordnung,
- Figur 2
- eine zweite Ausführungsform einer erfindungsgemäßen Vordrucksteueranordnung
Claims (4)
- Vordrucksteueranordnung für die Kraftstoffzufuhr von einer in einem Kraftstofftank angeordneten Kraftstoffvordruckpumpe über eine Kraftstoffleitung zu einer Kraftstoffhochdruckpumpe einer Brennkraftmaschine mit einem in dem Kraftstofftank angeordneten Druckregelventil, das im geöffneten Zustand Kraftstoff aus der Kraftstoffleitung abzweigt und zurück in den Krafstofftank führt, wobei das Druckregelventil eine erste und eine zweite Kammer aufweist, die durch eine ein Ventilschließglied betätigende Membrane flüssigkeitsdicht voneinander getrennt sind, wobei die erste Kammer zumindest eine Einlaßöffnung aufweist, die über eine erste Abzweigleitung mit der Kraftstoffleitung verbunden ist, und zumindest eine Auslaßöffnung aufweist, die in den Kraftstofftank führt, wobei die zweite Kammer ein Federelement aufweist, das das Ventilschließglied in Schließrichtung vorspannt, dadurch gekennzeichnet, daß die zweite Kammer (14) des Druckregelventils (8) eine zweite Einlaßöffnung (17) aufweist, die über eine zweite Abzweigleitung (15) mit einem Schaltorgan (16) mit der Kraftstoffleitung (3) derart verbunden ist, daß unterschiedliche Druckniveaus in der zweiten Kammer (14) einstellbar sind.
- Vordrucksteueranordnung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Kammer (14) eine zweite Auslaßöffnung (18) aufweist, und daß in der zweiten Einlaßöffnung (17) eine erste Düse (19) mit dem Durchmesser D1 angeordnet ist.
- Vordrucksteueranordnung nach Anspruch 2, dadurch gekennzeichnet, daß in der zweiten Auslaßöffnung (18) eine zweite Düse (20) mit dem Durchmesser D2 angeordnet ist, wobei D2 größer als D1 ist und die Düsen (19, 20) derart dimensioniert sind, daß der Druckabfall über den beiden Düsen (19, 20) dem Gesamtdruck der Kraftstoffpumpe (2) entspricht, wobei das Schaltorgan (16) ein 2/2-Wege-Ventil ist.
- Vordrucksteueranordnung nach Anspruch 2, dadurch gekennzeichnet, daß in der zweiten Auslaßöffnung (18) ein Druckbegrenzungsventil (22) angeordnet ist, das bei der in der zweiten Kammer (14) angestrebten Druckerhöhung öffnet, wobei das Schaltorgan (16) ein 3/2-Wege-Ventil ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10143892A DE10143892A1 (de) | 2001-09-07 | 2001-09-07 | Vorducksteueranordnung |
| DE10143892 | 2001-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1291518A2 true EP1291518A2 (de) | 2003-03-12 |
| EP1291518A3 EP1291518A3 (de) | 2003-11-05 |
Family
ID=7698052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02015742A Withdrawn EP1291518A3 (de) | 2001-09-07 | 2002-07-13 | Vordrucksteueranordnung |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20030047217A1 (de) |
| EP (1) | EP1291518A3 (de) |
| DE (1) | DE10143892A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10343482A1 (de) * | 2003-09-19 | 2005-04-14 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
| JP2009002294A (ja) | 2007-06-25 | 2009-01-08 | Aisan Ind Co Ltd | 燃料供給装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US618903A (en) * | 1899-02-07 | Pressure-relief valve | ||
| JPH0658156U (ja) * | 1993-01-13 | 1994-08-12 | 富士重工業株式会社 | 燃料タンクの圧力制御装置 |
| JP3435770B2 (ja) * | 1993-12-03 | 2003-08-11 | 株式会社デンソー | 高圧燃料噴射装置 |
| DE4425252C2 (de) * | 1994-07-16 | 1997-08-21 | Vdo Schindling | Kraftstoff-Fördervorrichtung |
| DE19510497A1 (de) * | 1995-03-23 | 1996-09-26 | Pierburg Gmbh | Brennstoffversorgungssystem für Brennkraftmaschinen |
| US5967120A (en) * | 1996-01-16 | 1999-10-19 | Ford Global Technologies, Inc. | Returnless fuel delivery system |
| US5881698A (en) * | 1997-12-01 | 1999-03-16 | Walbro Corporation | Fuel pump with regulated output |
| DE19805070C2 (de) * | 1998-02-09 | 1999-11-25 | Bosch Gmbh Robert | Kraftstoff-Fördermodul für eine Benzindirekteinspeisung einer Brennkraftmaschine mit einem Ventil |
| US5967119A (en) * | 1998-03-11 | 1999-10-19 | General Motors Corporation | Electronically variable pressure control |
| FR2785401B1 (fr) * | 1998-07-07 | 2005-08-05 | Luk Getriebe Systeme Gmbh | Distributeur regulateur de flux volumique |
| IT1306319B1 (it) * | 1998-07-16 | 2001-06-04 | Magneti Marelli Spa | Gruppo di alimentazione di carburante ad un motore endotermico |
| US6314947B1 (en) * | 1999-10-13 | 2001-11-13 | Walbro Corporation | Fuel delivery system |
| DE19957742A1 (de) * | 1999-12-01 | 2001-06-07 | Bosch Gmbh Robert | Kraftstoffzuführvorrichtung für einen Verbrennungsmotor |
| DE10005471A1 (de) * | 2000-02-08 | 2001-08-09 | Bayerische Motoren Werke Ag | Kraftstoffversorgungsanlage für eine Brennkraftmaschine |
| US6601565B2 (en) * | 2000-10-30 | 2003-08-05 | Siemens Automotive Inc. | Pressure regulating valve and system |
| DE10100700C1 (de) * | 2001-01-10 | 2002-08-01 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem mit Druckregelung in der Rücklaufleitung |
-
2001
- 2001-09-07 DE DE10143892A patent/DE10143892A1/de not_active Withdrawn
-
2002
- 2002-07-13 EP EP02015742A patent/EP1291518A3/de not_active Withdrawn
- 2002-09-06 US US10/236,763 patent/US20030047217A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20030047217A1 (en) | 2003-03-13 |
| DE10143892A1 (de) | 2003-03-27 |
| EP1291518A3 (de) | 2003-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102014005741B4 (de) | Dual-brennstoffeinspritzvorrichtung mit f-, a- und z-zumessöffnungssteuerung | |
| DE69718275T2 (de) | Kraftstoffeinspritzvorrichtung | |
| WO1998031933A1 (de) | Kraftstoffeinspritzeinrichtung für brennkraftmaschinen | |
| WO2008015039A1 (de) | Injektor für ein kraftstoffeinspritzsystem | |
| EP2206912B1 (de) | Kraftstoff-Injektor | |
| DE60107794T2 (de) | Kraftstoffeinspritzsystem | |
| DE10245151B4 (de) | Kraftstoffeinspritzvorrichtung | |
| EP2462335B1 (de) | Vorrichtung zur kraftstoffhochdruckeinspritzung | |
| EP0615064A1 (de) | Steueranordnung für ein Einspritzventil für Verbrennungskraftmaschinen | |
| DE102015225073A1 (de) | Kraftstoffinjektor | |
| EP0783625A1 (de) | Einspritzventil | |
| EP1291520A2 (de) | Druckregelanordnung | |
| EP3364015B1 (de) | Elektromagnetisches schaltventil und kraftstoffhochdruckpumpe | |
| EP1925812A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
| EP1291518A2 (de) | Vordrucksteueranordnung | |
| DE10141221B4 (de) | Druck-Hub-gesteuerter Injektor für Kraftstoffeinspritzsysteme | |
| EP1541859B1 (de) | Einspritzventil | |
| EP2426348B1 (de) | Brennstoffeinspritzventil | |
| DE102005010453A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
| EP2798192B1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen | |
| DE102018201279B4 (de) | Hochdruckanschluss für eine Kraftstoffhochdruckpumpe eines Kraftstoffeinspritzsystems sowie Kraftstoffhochdruckpumpe | |
| DE102016219722A1 (de) | Steuerbares Saugventil für eine Hochdruckpumpe, Hochdruckpumpe | |
| DE102007034319A1 (de) | Injektor | |
| DE102018207134A1 (de) | Ventilanordnung zur Gasdruckregelung in einem Gas-Rail | |
| EP1176306A2 (de) | Kraftstoffeinspriztsystem für Brennkraftmaschinen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20020713 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7F 02M 69/46 B Ipc: 7F 02M 69/54 B Ipc: 7F 02M 37/10 A |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Effective date: 20031209 |