DE102005059830B3 - Fuel injection device for internal-combustion engine, comprises several injectors, which are arranged hydraulically parallel and downstream to fuel accumulator - Google Patents
Fuel injection device for internal-combustion engine, comprises several injectors, which are arranged hydraulically parallel and downstream to fuel accumulator Download PDFInfo
- Publication number
- DE102005059830B3 DE102005059830B3 DE200510059830 DE102005059830A DE102005059830B3 DE 102005059830 B3 DE102005059830 B3 DE 102005059830B3 DE 200510059830 DE200510059830 DE 200510059830 DE 102005059830 A DE102005059830 A DE 102005059830A DE 102005059830 B3 DE102005059830 B3 DE 102005059830B3
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- pressure
- control valve
- injector
- downstream
- 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 - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 80
- 238000002347 injection Methods 0.000 title claims abstract description 39
- 239000007924 injection Substances 0.000 title claims abstract description 39
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 36
- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 238000005086 pumping Methods 0.000 abstract 2
- 238000010926 purge Methods 0.000 description 14
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
-
- 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
- F02M55/002—Arrangement of leakage or drain conduits in or from 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
- F02M63/02—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
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
Einspritzanlage für eine Brennkraftmaschine, mit einer Vorförderpumpe (12) zur Förderung von Kraftstoff aus einem Kraftstofftank (10), einer der Vorförderpumpe (12) stromabwärts nachgeordneten Hochdruckpumpe (14) zur Förderung des Kraftstoffs in einen Kraftstoffspeicher (16), einem der Hochdruckpumpe (14) stromabwärts nachgeordneten Drucksteuerventil (20), mit dem der in dem Kraftstoffspeicher (16) herzustellende Druck einstellbar ist, und mindestens einem dem Kraftstoffspeicher (16) stromabwärts nachgeordneten Injektor (18). Das Drucksteuerventil (20) ist stromabwärts des Kraftstoffspeichers (16) hydraulisch parallel zu dem Injektor (18) angeordnet.Injection system for an internal combustion engine, with a pre-feed pump (12) for pumping fuel from a fuel tank (10), a high-pressure pump (14) downstream of the pre-feed pump (12) for pumping the fuel into a fuel reservoir (16), one of the high-pressure pumps (14) ) downstream pressure control valve (20) with which the pressure to be produced in the fuel accumulator (16) can be set, and at least one injector (18) arranged downstream of the fuel accumulator (16). The pressure control valve (20) is arranged downstream of the fuel accumulator (16) hydraulically in parallel to the injector (18).
Description
Die Erfindung betrifft eine Einspritzanlage für eine Brennkraftmaschine und einen Injektor für eine Einspritzanlage einer Brennkraftmaschine.The The invention relates to an injection system for an internal combustion engine and an injector for an injection system of an internal combustion engine.
Zum Einspritzen von Kraftstoff in Brennräume einer Brennkraftmaschine, insbesondere einer Dieselbrennkraftmaschine, kommen Einspritzanlagen zum Einsatz, die in den letzten Jahren immer mehr als sogenannte „Common-Rail"-Anlagen ausgeführt sind. Bei diesen werden die in den Brennräumen angeordneten Injektoren aus einem gemeinsamen Kraftstoffspeicher, dem Common-Rail, mit Kraftstoff versorgt. Der einzuspritzende Kraftstoff liegt dabei im Kraftstoffspeicher unter einem Druck von bis zu 2000 bar vor.To the Injecting fuel into combustion chambers of an internal combustion engine, in particular a diesel engine, come injection systems used in recent years more and more as so-called "common rail" systems are executed. These are the arranged in the combustion chambers injectors from a common fuel storage, the common rail, with fuel provided. The fuel to be injected lies in the fuel tank under a pressure of up to 2000 bar.
Einspritzanlagen für Brennkraftmaschinen weisen üblicherweise verschiedene Pumpen auf, mittels derer Kraftstoff gefördert wird, um in Brennräume der Brennkraftstoffmaschine eingebracht zu werden. Derartige Einspritzanlagen für Brennkraftmaschinen stellen hohe Anforderungen an die Genauigkeit des zur Einspritzung des Kraftstoffs in die Brennräume der Brennkraftmaschine erforderlichen Einspritzdrucks.injection for internal combustion engines usually have various pumps, by means of which fuel is conveyed, around in combustion chambers of the Internal combustion engine to be introduced. Such injection systems for internal combustion engines high demands on the accuracy of the injection of the fuel into the combustion chambers of the Internal combustion engine required injection pressure.
Dies ist besonders wichtig, da immer strengere Gesetzesvorschriften bezüglich der zulässigen Schadstoffemissionen von Brennkraftmaschinen, die in Kraftfahrzeugen angeordnet sind, erlassen werden. Diese machen es erforderlich, diverse Maßnahmen vorzunehmen, durch welche die Schadstoffemissionen gesenkt werden. So ist beispielsweise die Bildung von Ruß stark abhängig von der Aufbereitung des Luft-/Kraftstoffgemisches in dem jeweiligen Zylinder der Brennkraftmaschine.This is particularly important as ever stricter legislation regarding the permissible pollutant emissions of internal combustion engines, which are arranged in motor vehicles, be adopted. These necessitate various measures by which the pollutant emissions are lowered. For example, the formation of soot is highly dependent on the preparation of the Air / fuel mixture in the respective cylinder of the internal combustion engine.
Die Einspritzanlage kann mit geeigneten Steuer- und Regelaggregaten eine hohe Genauigkeit des Einspritzdrucks des Kraftstoffs in die Brennräume der Brennkraftmaschine erreichen.The Injection system can with suitable control and regulating units a high accuracy of the injection pressure of the fuel in the combustion chambers reach the internal combustion engine.
Aus
der
Die
Der Erfindung liegt die Aufgabe zugrunde, eine Einspritzanlage der eingangs beschriebenen Art zu schaffen, mit der in einfacher Weise ein präzises und zuverlässiges Zumessen von Kraftstoff für die Brennkraftmaschine sowie ein einfacher Aufbau der Einspritzanlage ermöglicht werden. Des Weiteren liegt der Erfindung die Aufgabe zugrunde, einen Injektor für eine Einspritzanlage einer Brennkraftmaschine zu schaffen, der einfach zu montieren ist.Of the Invention is based on the object, an injection system of the above to create a precise manner with which in a simple manner reliable Metering fuel for the internal combustion engine and a simple construction of the injection system allows become. Furthermore, the invention is based on the object, a Injector for to create an injection system of an internal combustion engine, the easy to assemble.
Die Aufgabe wird gelöst durch die Merkmale des unabhängigen Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.The Task is solved by the characteristics of the independent Claim 1. Advantageous embodiments of the invention are in the dependent claims characterized.
Die Erfindung zeichnet sich aus durch eine Einspritzanlage für eine Brennkraftmaschine, mit einer Vorförderpumpe zur Förderung von Kraftstoff aus einem Kraftstofftank, einer der Vorförderpumpe stromabwärts nachgeordneten Hochdruckpumpe zur Förderung des Kraftstoffs in einen Kraftstoffspeicher, einem der Hochdruckpumpe stromabwärts nachgeordneten Drucksteuerventil, mit dem der in dem Kraftstoffspeicher herzustellenden Druck einstellbar ist. Dabei sind stromabwärts des Kraftstoffspeichers mehrere Injektoren hydraulisch parallel angeordnet, und stromabwärts des Kraftstoffspeichers ist zu jeweils einem Injektor ein Drucksteuerventil hydraulisch parallel angeordnet. Wird jedem der Injektoren ein Drucksteuerventil zugeordnet, so ist eine individuelle Druckbeaufschlagung jeder der Injektoren möglich.The Invention is characterized by an injection system for an internal combustion engine, with a pre-feed pump to promote of fuel from a fuel tank downstream of one of the prefeed pump High pressure pump for delivery of the fuel into a fuel reservoir, one of the high pressure pump downstream downstream pressure control valve, with which in the fuel tank is to be set adjustable pressure. These are downstream of the Fuel accumulator several injectors hydraulically arranged in parallel, and downstream of the fuel accumulator is a pressure control valve to each injector hydraulically arranged in parallel. Will each of the injectors become a pressure control valve assigned, so is an individual pressurization of each of the Injectors possible.
In einer vorteilhaften Ausführungsform der Erfindung sind das Drucksteuerventil und der Injektor als Baueinheit ausgebildet. Dies hat den Vorteil, dass der Aufwand für die Montage des Drucksteuerventils und des Injektors gering ist. Es ist nur mehr eine hydraulische und eine elektrische Schnittstelle für die Baueinheit aus Drucksteuerventil und Injektor erforderlich. So kann insbesondere der Aufwand für elektrische Anschlüsse, insbesondere Steckverbindungen, gering gehalten werden. Dies führt sowohl zu einem geringen Materialeinsatz als auch zu einem geringen Zeitaufwand bei der Installation von Drucksteuerventil und Injektor. Dies bedeutet, dass eine sowohl bezüglich des Materials als auch der Arbeitszeit kostengünstige Lösung erreicht werden kann.In an advantageous embodiment of the invention, the pressure control valve and the injector are designed as a structural unit. This has the advantage that the cost of mounting the pressure control valve and the injector is low. It is only a hydraulic and an electrical interface for the assembly of pressure control valve and injector required. In particular, the cost of electrical connections, in particular connectors, can be kept low. This leads both to a low use of material and to a small amount of time in the installation of pressure control valve and injector. This means that one in terms of both the material and the work time-cost solution can be achieved.
Gemäß eines zweiten Aspekts umfasst die Erfindung einen Injektor für eine Einspritzanlage einer Brennkraftmaschine mit einem Drucksteuerventil, wobei das Drucksteuerventil hydraulisch parallel zu dem Injektor angeordnet ist, und der Injektor und das Drucksteuerventil als Baueinheit ausgebildet sind. Damit wird in vorteilhafter Weise ein kompakter Aufbau für den Injektor mit Drucksteuerventil ermöglicht. Außerdem kann der Montageaufwand für das Drucksteuerventil und den Injektor gering gehalten werden. Es ist nur eine hydraulische und elektrische Schnittstelle für die Baueinheit aus Drucksteuerventil und Injektor erforderlich. Darüber hinaus kann durch die Ausbildung der Baueinheit aus Drucksteuerventil und Injektor eine kostengünstige Lösung erreicht werden.According to one In the second aspect, the invention comprises an injector for an injection system an internal combustion engine with a pressure control valve, wherein the Pressure control valve arranged hydraulically parallel to the injector is, and the injector and the pressure control valve formed as a unit are. This is advantageously a compact design for the injector with pressure control valve allows. In addition, can the installation effort for the pressure control valve and the injector are kept low. It is just a hydraulic and electrical interface for the unit required from pressure control valve and injector. In addition, can by the formation of the assembly of pressure control valve and injector a cost-effective solution be achieved.
Ein Ausführungsbeispiel der Erfindung ist im Folgenden anhand von schematischen Zeichnungen näher erläutert.One embodiment The invention is explained in more detail below with reference to schematic drawings.
Es zeigen:It demonstrate:
Elemente gleicher Konstruktion oder Funktion sind figurenübergreifend mit den gleichen Bezugszeichen gekennzeichnet.elements same construction or function are cross-figurative with the same Reference number marked.
In
Die
Vorförderpumpe
Der
Vorförderpumpe
Der
Kraftstoffspeicher
Überschüssiger Brennstoff
kann von den Injektoren
Zwischen
der Vorförderpumpe
Zur
Regelung oder Steuerung des Einspritzdrucks der Injektoren
An
dem Drucksteuerventil
Stromabwärts der
Vorförderpumpe
In
der Spülleitung
Zum
Schutz der in der Einspritzanlage angeordneten Aggregate, insbesondere
der Pumpen
Die
Spülrücklaufleitung
Durch
die Anordnung des Drucksteuerventils
Da
das Drucksteuerventil
Durch
die Ausführung
der Baueinheit
Im
Folgenden soll kurz die Funktion der Einspritzanlage beschrieben
werden:
Die Vorförderpumpe
The pre-feed pump
In
einer erfindungsgemäßen Ausführungsform
der Einspritzanlage, wie sie in
Die
Anordnung jeweils eines Drucksteuerventils
In
In
einer weiteren Ausführungsform
der Einspritzanlage sind das Drucksteuerventil
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510059830 DE102005059830B3 (en) | 2005-12-14 | 2005-12-14 | Fuel injection device for internal-combustion engine, comprises several injectors, which are arranged hydraulically parallel and downstream to fuel accumulator |
| EP06125839A EP1798409A3 (en) | 2005-12-14 | 2006-12-11 | Fuel injection system for a combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510059830 DE102005059830B3 (en) | 2005-12-14 | 2005-12-14 | Fuel injection device for internal-combustion engine, comprises several injectors, which are arranged hydraulically parallel and downstream to fuel accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102005059830B3 true DE102005059830B3 (en) | 2007-05-03 |
Family
ID=37903507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200510059830 Expired - Fee Related DE102005059830B3 (en) | 2005-12-14 | 2005-12-14 | Fuel injection device for internal-combustion engine, comprises several injectors, which are arranged hydraulically parallel and downstream to fuel accumulator |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1798409A3 (en) |
| DE (1) | DE102005059830B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184537A1 (en) * | 2015-05-21 | 2016-11-24 | Mtu Friedrichshafen Gmbh | Injection system for an internal combustion engine and internal combustion engine having such an injection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1296060B1 (en) * | 2001-09-22 | 2005-06-08 | Robert Bosch Gmbh | Fuel injection system for an internal combustion engine |
| DE102004005451A1 (en) * | 2004-02-04 | 2005-08-25 | Robert Bosch Gmbh | Fuel injection system for internal combustion engines |
| DE60013979T2 (en) * | 1999-07-28 | 2005-10-06 | Toyota Jidosha K.K., Toyota | High pressure fuel pump and cam for high pressure fuel pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19734354A1 (en) * | 1997-08-08 | 1999-02-11 | Mtu Friedrichshafen Gmbh | Internal combustion engine fuel injection system |
| DE10218023A1 (en) * | 2002-04-23 | 2003-11-06 | Bosch Gmbh Robert | Fuel injection device for internal combustion engine has return lines from injectors and high pressure pump opening into common return line, pressure regulating valve outlet opening into fuel tank |
-
2005
- 2005-12-14 DE DE200510059830 patent/DE102005059830B3/en not_active Expired - Fee Related
-
2006
- 2006-12-11 EP EP06125839A patent/EP1798409A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60013979T2 (en) * | 1999-07-28 | 2005-10-06 | Toyota Jidosha K.K., Toyota | High pressure fuel pump and cam for high pressure fuel pump |
| EP1296060B1 (en) * | 2001-09-22 | 2005-06-08 | Robert Bosch Gmbh | Fuel injection system for an internal combustion engine |
| DE102004005451A1 (en) * | 2004-02-04 | 2005-08-25 | Robert Bosch Gmbh | Fuel injection system for internal combustion engines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184537A1 (en) * | 2015-05-21 | 2016-11-24 | Mtu Friedrichshafen Gmbh | Injection system for an internal combustion engine and internal combustion engine having such an injection system |
| US20180023502A1 (en) * | 2015-05-21 | 2018-01-25 | Mtu Friedrichshafen Gmbh | Injection system for an internal combustion engine and internal combustion engine having such an injection system |
| CN107864661A (en) * | 2015-05-21 | 2018-03-30 | Mtu 腓特烈港有限责任公司 | Spraying system for internal combustion engine and the internal combustion engine with this spraying system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1798409A3 (en) | 2007-12-12 |
| EP1798409A2 (en) | 2007-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
| 8339 | Ceased/non-payment of the annual fee |