DE102004054652A1 - Fuel injecting device for four cylinder diesel engine, has filter arranged in high pressure pipe between pump and accumulator, and magnet connected in flow path between pump and injectors - Google Patents
Fuel injecting device for four cylinder diesel engine, has filter arranged in high pressure pipe between pump and accumulator, and magnet connected in flow path between pump and injectors Download PDFInfo
- Publication number
- DE102004054652A1 DE102004054652A1 DE102004054652A DE102004054652A DE102004054652A1 DE 102004054652 A1 DE102004054652 A1 DE 102004054652A1 DE 102004054652 A DE102004054652 A DE 102004054652A DE 102004054652 A DE102004054652 A DE 102004054652A DE 102004054652 A1 DE102004054652 A1 DE 102004054652A1
- Authority
- DE
- Germany
- Prior art keywords
- filter
- filter element
- pump
- housing
- pressure
- 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- Withdrawn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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
-
- 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/52—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements using magnetic means
-
- 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
Description
Die Erfindung betrifft eine Kraftstoffeinspritzvorrichtung mit einer Hochdruckpumpe, die über eine Hochdruckleitung in einen Hochdruckspeicher (Common Rail) fördert, an den über Zweigleitungen mehrere steuerbare Injektoren angeschlossen sind, die Kraftstoff in die Zylinder eines Verbrennungsmotors spritzen.The The invention relates to a fuel injection device with a High pressure pump over a high-pressure line in a high-pressure accumulator (common rail) promotes to the over Branch lines are connected to several controllable injectors, inject the fuel into the cylinders of an internal combustion engine.
Common-Rail-Einspritzsysteme zeichnen sich gegenüber anderen Einspritzsystemen bei Dieselmotoren dadurch aus, daß die Druckerzeugung und Einspritzung voneinander unabhängig sind. Damit ergeben sich mehr Möglichkeiten für die Gestaltung der Einspritzvorgänge, um sehr dynamische, ruhig laufende, sparsame und schadstoffarme Motoren zu erhalten.Common rail injection stand opposite each other other injection systems in diesel engines characterized in that the pressure generation and Injection independent are. This results in more possibilities for the Design of injection processes, very dynamic, quiet, economical and low-emission To get engines.
Leider kommt es aber im praktischen Betrieb von Dieselmotoren mit Common-Rail-Einspritzsystemen noch verhältnismäßig oft zu Störungen und Schäden durch verstopfte Injektoren, obgleich sich zwischen dem üblicherweise unmittelbar vor dPm Hochdruckteil angeordneten Kraftstoff-Filter und den Injektoren nur die Hochdruckpumpe und der Hochdruckspeicher befinden. Verbesserungen des Kraftstoff-Filters konnten das Problem lindern, aber nicht beseitigen.Unfortunately But it comes in practical operation of diesel engines with common rail injection systems still relatively often to disturbances and damage through clogged injectors, though between the usual immediately before dPm high-pressure part arranged fuel filter and the injectors only the high pressure pump and the high pressure accumulator are located. Improvements to the fuel filter could solve the problem alleviate, but not eliminate.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Kraftstoffeinspritzvorrichtung der eingangs genannten Art zu schaffen, die zuverlässiger funktioniert, und zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß in der Hochdruckleitung zwischen der Hochdruckpumpe und dem Hochdruckspeicher ein Filter angeordnet ist.Of the The invention is therefore based on the object, a fuel injection device of the type mentioned above, which works more reliably, and to the solution This object is inventively proposed that in the High pressure line between the high pressure pump and the high pressure accumulator a filter is arranged.
Die Erfindung geht von der Erkenntnis aus, daß ein Teil der störenden Schmutzpartikel erst in der Hochdruckpumpe in den Kraftstoff gelangt. Es handelt sich dabei z. B. um Abrieb in Form feiner Metallspäne, Teilchen von Beschichtungen und aus Erosionsvorgängen stammende Partikel. Weiterhin gelangen aber auch insbesondere kleinteilige Verschmutzungen, die von vornherein im Kraftstoff enthalten sind oder z. B. von Gummi- oder Kunststoffteilen des Kraftstoffversorgungssystems stammen, durch den herkömmlichen Kraftstoff-Filter hindurch in den Hochdruckkreislauf. Schließlich können schädliche Partikel beim Austauschen von Teilen des Einspritzsystems in den Hochdruckkreislauf eingeschleppt werden.The Invention is based on the recognition that a part of the disturbing dirt particles only in the high-pressure pump enters the fuel. It deals itself thereby z. As abrasion in the form of fine metal chips, particles coatings and erosion processes. Farther but also get in particular small-scale contamination, the are included in the fuel from the outset or z. B. of rubber or plastic parts come from the fuel supply system, by the conventional Fuel filter through in the high pressure circuit. Finally, harmful particles can when replacing parts of the injection system in the high pressure circuit be introduced.
So verschiedenartig die Entstehungsorte und Materialien der Kontaminationen sind, sie können sämtlich durch den vorgeschlagenen Filter in der Hochdruckleitung zwischen der Hochdruckpumpe und dem Hochdruckspeicher weitgehend eliminiert werden. Dabei wird dieser Filter vorzugsweise noch durch wenigstens einen Magneten an dem Strömungsweg zwischen der Hochdruckpumpe und den Injektoren ergänzt, um speziell ferromagnetische Teilchen unabhängig von ihrer Feinheit abzufangen. Es genügt zu diesem Zweck, einen oder mehrere Permanentmagnete in dem Filtergehäuse zu plazieren, an dessen Stahlwand sie ohne weitere Befestigungsmittel infolge ihrer magnetischen Eigenschaft zuverlässig haften bleiben.So various the places of origin and materials of contamination are, they can all through the proposed filter in the high pressure line between the high-pressure pump and the high-pressure accumulator are largely eliminated. In this case, this filter is preferably still by at least one Magnets on the flow path between the high pressure pump and the injectors added to specifically intercept ferromagnetic particles regardless of their fineness. It enough for this purpose, to place one or more permanent magnets in the filter housing, on the steel wall they without further fasteners due to adhere reliably to their magnetic properties.
Das bisherige Fehlen eines Filters im Hochdruckkreis von Common-Rail-Einspritzanlagen mag teilweise auch darauf zurückzuführen sein, daß die herkömmlichen Kraftstoff-Filter den dort herrschenden Belastungen nicht standhalten. Überraschenderweise hat sich jedoch gezeigt, daß man als Filterelement ei nen porösen Sinterkörper, wie er in Druckgasanlagen benutzt wird, auch zum Filtern von Dieselöl einsetzen kann, weil der extrem hohe Druck von 250 bis 1.600 oder 1.800 bar des Common-Rail-Systems das Öl durch die feinen Poren des Sinterkörpers preßt.The previous lack of a filter in the high pressure circuit of common rail injection systems may partly be due to that the conventional Fuel filter the prevailing loads can not withstand. Surprisingly However, it has been shown that one as a filter element ei nen porous Sintered body, as used in compressed gas systems, also for filtering diesel oil use can because of the extremely high pressure of 250 to 1,600 or 1,800 bar of the common rail system the oil through the fine pores of the sintered body.
Weitere bevorzugte Ausgestaltungen der Erfindung gehen aus der nachstehenden Erläuterung eines in der beigefügten Zeichnung dargestellten Ausführungsbeispiels hervor. Es zeigen:Further preferred embodiments of the invention will become apparent from the following Explanation of a in the accompanying Drawing illustrated embodiment out. Show it:
Die
in
Da
die Hochdruckpumpe
Die
Niederdruck-Versorgungsleitung
Die
Besonderheit der dargestellten Common-Rail-Anlage besteht darin,
daß in
der Hochdruckleitung
Der
Aufbau des Filters
Der
mit
Der
durch den Einlaßkanal
Um
am Gehäuse
Das
Filterelement
Das
Filterelement
Die
Porosität
des das Filterelement
Um
insgesamt eine ausreichend große
zu durchströmende
Querschnittsfläche
zu erhalten, die z. B. 2l/min durchläßt, hat das Filterelement
Der
Fachmann sieht aber auch, daß die
kegelstumpfförmige
Gestalt des Filterelements
Bei
dem in
Eine
weitere Modifikation ist bei der Ausführung nach
Weil
bei der Ausführung
nach
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004054652A DE102004054652A1 (en) | 2004-11-11 | 2004-11-11 | Fuel injecting device for four cylinder diesel engine, has filter arranged in high pressure pipe between pump and accumulator, and magnet connected in flow path between pump and injectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004054652A DE102004054652A1 (en) | 2004-11-11 | 2004-11-11 | Fuel injecting device for four cylinder diesel engine, has filter arranged in high pressure pipe between pump and accumulator, and magnet connected in flow path between pump and injectors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004054652A1 true DE102004054652A1 (en) | 2006-05-18 |
Family
ID=36273791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004054652A Withdrawn DE102004054652A1 (en) | 2004-11-11 | 2004-11-11 | Fuel injecting device for four cylinder diesel engine, has filter arranged in high pressure pipe between pump and accumulator, and magnet connected in flow path between pump and injectors |
Country Status (1)
Country | Link |
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DE (1) | DE102004054652A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180238284A1 (en) * | 2015-09-04 | 2018-08-23 | Uab "Auksto Slegio Filtravimo Sprendimai" | High-pressure liquid filter with support stem and application of this filter in fuel system |
EP3412905A1 (en) * | 2017-06-07 | 2018-12-12 | Delphi Technologies IP Limited | Diesel hp pump with debris collector |
-
2004
- 2004-11-11 DE DE102004054652A patent/DE102004054652A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180238284A1 (en) * | 2015-09-04 | 2018-08-23 | Uab "Auksto Slegio Filtravimo Sprendimai" | High-pressure liquid filter with support stem and application of this filter in fuel system |
RU2697081C1 (en) * | 2015-09-04 | 2019-08-12 | УАБ "Филтрум" | High pressure liquid filter with support rod and use of such filter in fuel system |
EP3412905A1 (en) * | 2017-06-07 | 2018-12-12 | Delphi Technologies IP Limited | Diesel hp pump with debris collector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |