EP2310679A1 - High-pressure fuel pump - Google Patents

High-pressure fuel pump

Info

Publication number
EP2310679A1
EP2310679A1 EP09779639A EP09779639A EP2310679A1 EP 2310679 A1 EP2310679 A1 EP 2310679A1 EP 09779639 A EP09779639 A EP 09779639A EP 09779639 A EP09779639 A EP 09779639A EP 2310679 A1 EP2310679 A1 EP 2310679A1
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
low
pressure fuel
pump housing
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.)
Granted
Application number
EP09779639A
Other languages
German (de)
French (fr)
Other versions
EP2310679B1 (en
Inventor
Friedrich Boecking
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2310679A1 publication Critical patent/EP2310679A1/en
Application granted granted Critical
Publication of EP2310679B1 publication Critical patent/EP2310679B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/103—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being a radial piston pump
    • 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
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type

Definitions

  • the invention relates to a high-pressure fuel pump for
  • a high-pressure fuel pump in which pump pistons are driven to compress fuel via a pump camshaft mounted in a pump housing.
  • the pump housing is designed to be split and has according to the arrangement of the pump piston relative to the pump camshaft and the prevailing space lines of a low pressure and a high-pressure circuit, which the supply of low-pressure fuel or the promotion of high-pressure compressed fuel to a high-pressure accumulator serve .
  • a disadvantage of such a design is that when placing the lines of the low-pressure circuit in the pump housing, due to the sometimes greatly varying space conditions in various internal combustion engines, for different variants of a high-pressure fuel pump each different pump housing are to make, which increases the production cost.
  • the pump housing is applicable to the largest possible number of different variants.
  • the invention includes the technical teaching that a low pressure unit, which receives the low pressure circuit, is attached to the pump housing. This makes it possible to make an adjustment of the course of the low-pressure lines to the space conditions in the engine in this low-pressure unit and run the pump housing as a unitary housing, which can thus be used for different variants of the high-pressure fuel pump in this form.
  • a delivery pump is placed on the side facing away from the pump housing side of the low pressure unit.
  • the feed pump is realized in the manner of a gear pump.
  • This type of execution is a compact and reliable solution.
  • a metering unit for metering in the fuel to be compressed is integrated on the side facing the pump housing, lying outside the pump housing, into the low-pressure unit. An arrangement of the metering unit in this area is reliably protected against mechanical effects. This increases the reliability of the system.
  • the pump housing and / or the pump cylinder heads project beyond the low-pressure unit arranged connections of the low-pressure circuit. This has the advantage that thus connections of the low-pressure circuit through the pump housing and the pump cylinder heads are effectively shielded from mechanical effects.
  • a drive of the feed pump via the pump camshaft This eliminates a separate drive the pump, which further increases the compactness of the system.
  • the production cost of the high-pressure fuel pump can be further minimized.
  • Embodiment of the invention shows a longitudinal section of the high-pressure fuel pump according to the invention, in which a pump camshaft 1 is mounted in a pump housing 3 via slide bearings 2a and 2b.
  • the pump camshaft 1 further has a polygonal formation 4, via which it is in contact with two pump pistons 5a and 5b, which are guided displaceably respectively in pump cylinder heads 6a and 6b placed on the pump housing.
  • a rotational movement of the pump camshaft 1 via the polygonal training 4 in each case a translational movement of the pump piston 5a and 5b implemented.
  • a pressure chamber 7a and 7b is arranged, in each of which at a downward movement of the respective pump piston 5a or 5b via an associated suction valve 8a or 8b fuel is sucked and then in an upward movement
  • the respective pump piston 5 a or 5 b is compressed and fed via a respective associated high-pressure valve 9 a or 9 b a high-pressure circuit and thus a - not shown here - high-pressure accumulator.
  • a low pressure unit 10 is attached to the pump housing 3, which the
  • Low pressure circuit absorbs. Furthermore, a gear pump 11, which represents the delivery pump of the low-pressure circuit, is placed on this low-pressure unit 10 on a side facing away from the pump housing 3. As a further special feature, a metering unit 12, which is only indicated by dashed lines in the view, is integrated into the low-pressure unit 10 on a side facing the pump housing 3. Furthermore, ports 13a and 13b of the low-pressure circuit are surmounted by the pump housing 3 and the pump cylinder heads 6a and 6b, so that these ports 13a and 13b are shielded against mechanical effects.
  • the Pump housing 3 are formed as a standard housing, since different courses of the pressure lines of the low-pressure circuit must be varied only in this low-pressure unit 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention relates to a high-pressure fuel pump for operating an internal combustion engine, having a pump housing (3) in which a pump camshaft (1) is supported and which is connected to at least two pump pistons (5a, 5b) via a polygonal configuration (4), said pistons being guided in a displaceable manner in associated pump cylinder heads (6a, 6b) that are placed on the pump housing (3), wherein the rotating movement of the pump camshaft (1) is converted to translational movements of the at least two pump pistons (5a, 5b) in order to suction off fuel from a low-pressure circuit, compress the fuel to high pressure, and to convey the same to a high pressure storage, wherein further a low-pressure unit (10) that accommodates the low-pressure circuit is attached to the pump housing (3).

Description

Hochdruckkraftsto ffpumpe High pressure fuel pump
Die Erfindung betrifft einen Hochdruckkraftstoffpumpe zumThe invention relates to a high-pressure fuel pump for
Betrieb einer Brennkraftmaschine mit einem Pumpengehäuse, in welchem eine Pumpennockenwelle gelagert ist und über eine polygone Ausbildung mit mindestens zwei Pumpenkolben, die verschiebbar in jeweils zugeordneten auf dem Pumpengehäuse aufgesetzten Pumpenzylinderköpfen geführt sind, in Verbindung steht, wobei eine Umsetzung der rotatorischen Bewegung der Pumpennockenwelle in jeweils translatorische Bewegungen der mindestens zwei Pumpenkolben erfolgt, um Kraftstoff aus einem Niederdruckkreislauf anzusaugen, auf Hochdruck zu verdichten und zu einem Hochdruckspeicher zu fördern.Operation of an internal combustion engine with a pump housing, in which a pump camshaft is mounted and a polygonal training with at least two pump pistons, which are guided displaceably in each assigned to the pump housing patch pump cylinder heads, communicating with an implementation of the rotational movement of the pump camshaft in each case translational movements of the at least two pump pistons takes place in order to suck fuel from a low-pressure circuit, to compress to high pressure and to promote a high-pressure accumulator.
Stand der TechnikState of the art
Aus der DE 697 23 040 T2 ist eine Hochdruckkraftstoffpumpe bekannt, bei welcher Pumpenkolben zur Verdichtung von Kraftstoff über eine in einem Pumpengehäuse gelagerte Pumpennockenwelle angetrieben werden. Das Pumpengehäuse ist hierbei geteilt ausgeführt und weist entsprechend der Anordnung der Pumpenkolben relativ zu der Pumpennockenwelle und der herrschenden Platzverhältnisse Leitungen eines Niederdruck- und eines Hochdruckkreislaufes auf, welche der Zuführung von unter Niederdruck stehendem Kraftstoff bzw. der Förderung des auf Hochdruck verdichteten Kraftstoffes zu einem Hochdruckspeicher dienen .From DE 697 23 040 T2 a high-pressure fuel pump is known in which pump pistons are driven to compress fuel via a pump camshaft mounted in a pump housing. The pump housing is designed to be split and has according to the arrangement of the pump piston relative to the pump camshaft and the prevailing space lines of a low pressure and a high-pressure circuit, which the supply of low-pressure fuel or the promotion of high-pressure compressed fuel to a high-pressure accumulator serve .
Nachteilhaft an einer derartigen Ausführung ist, dass bei einer Platzierung der Leitungen des Niederdruckkreislaufs im Pumpengehäuse, aufgrund der teilweise stark variierenden Bauraumverhältnisse bei verschiedenen Brennkraftmaschinen, für unterschiedlichen Varianten einer Hochdruckkraftstoffpumpe jeweils verschiedene Pumpengehäuse anzufertigen sind, was den Herstellungsaufwand erhöht.A disadvantage of such a design is that when placing the lines of the low-pressure circuit in the pump housing, due to the sometimes greatly varying space conditions in various internal combustion engines, for different variants of a high-pressure fuel pump each different pump housing are to make, which increases the production cost.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Hochdruckkraftstoffpumpe zu schaffen, deren Pumpengehäuse auf eine möglichst große Anzahl unterschiedlicher Varianten anwendbar ist.It is therefore an object of the present invention to provide a high-pressure fuel pump, the pump housing is applicable to the largest possible number of different variants.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird ausgehend vom Oberbegriff des Anspruchs 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst. Die darauffolgenden abhängigen Ansprüche geben jeweils vorteilhafte Weiterbildungen der Erfindung wieder.This object is achieved on the basis of the preamble of claim 1 in conjunction with its characterizing features. The following dependent claims give each advantageous embodiments of the invention.
Die Erfindung umfasst die technische Lehre, dass eine Niederdruckeinheit, welche den Niederdruckkreislauf aufnimmt, an dem Pumpengehäuse befestigt ist. Dadurch ist es möglich, eine Anpassung des Verlaufs der Niederdruckleitungen an die Bauraumverhältnisse im Bereich der Brennkraftmaschine in dieser Niederdruckeinheit vorzunehmen und das Pumpengehäuse als Einheitsgehäuse auszuführen, welches somit für unterschiedliche Varianten der Hochdruckkraftstoffpumpe in dieser Form Verwendung finden kann.The invention includes the technical teaching that a low pressure unit, which receives the low pressure circuit, is attached to the pump housing. This makes it possible to make an adjustment of the course of the low-pressure lines to the space conditions in the engine in this low-pressure unit and run the pump housing as a unitary housing, which can thus be used for different variants of the high-pressure fuel pump in this form.
Gemäß einer weiteren, vorteilhaften Ausführungsform der Erfindung ist auf der vom Pumpengehäuse abgewandten Seite der Niederdruckeinheit eine Förderpumpe aufgesetzt. Dies hat den Vorteil, dass sich durch die direkte Anordnung einer Förderpumpe in diesem Bereich eine sehr kompakte Ausführung des Systems zur Kraftstoffhochdruckerzeugung realisieren lässt.According to a further advantageous embodiment of the invention, a delivery pump is placed on the side facing away from the pump housing side of the low pressure unit. This has the advantage that can be realized by the direct arrangement of a feed pump in this area a very compact design of the system for high-pressure fuel.
Vorteilhafterweise ist die Förderpumpe nach Art einer Zahnradpumpe realisiert. Diese Art der Ausführung stellt eine kompakte und gleichzeitig zuverlässige Lösung dar. In Weiterbildung der Erfindung ist eine Zumesseinheit zur Zudosierung des zu verdichtenden Kraftstoffs auf der dem Pumpengehäuse zugewandten Seite, außerhalb des Pumpengehäuses liegend in die Niederdruckeinheit integriert. Durch eine Anordnung der Zumesseinheit in diesem Bereich ist diese zuverlässig vor mechanischen Einwirkungen geschützt. Dies erhöht die Betriebssicherheit des Systems.Advantageously, the feed pump is realized in the manner of a gear pump. This type of execution is a compact and reliable solution. In a development of the invention, a metering unit for metering in the fuel to be compressed is integrated on the side facing the pump housing, lying outside the pump housing, into the low-pressure unit. An arrangement of the metering unit in this area is reliably protected against mechanical effects. This increases the reliability of the system.
Entsprechend einer vorteilhaften Weiterbildung der Erfindung überragen das Pumpengehäuse und/oder die Pumpenzylinderköpfe an der Niederdruckeinheit angeordnete Anschlüsse des Niederdruckkreislaufs. Dies hat den Vorteil, dass somit auch Anschlüsse des Niederdruckkreislaufs durch das Pumpengehäuse bzw. die Pumpenzylinderköpfe wirksam vor mechanischen Einwirkungen abgeschirmt sind.According to an advantageous development of the invention, the pump housing and / or the pump cylinder heads project beyond the low-pressure unit arranged connections of the low-pressure circuit. This has the advantage that thus connections of the low-pressure circuit through the pump housing and the pump cylinder heads are effectively shielded from mechanical effects.
In Weiterbildung der Erfindung erfolgt ein Antrieb der Förderpumpe über die Pumpennockenwelle. Dadurch kann ein gesonderter Antrieb der Förderpumpe entfallen, was die Kompaktheit des Systems weiter erhöht. Zudem kann der Herstellungsaufwand der Hochdruckkraftstoffpumpe weiter minimiert werden.In a further development of the invention, a drive of the feed pump via the pump camshaft. This eliminates a separate drive the pump, which further increases the compactness of the system. In addition, the production cost of the high-pressure fuel pump can be further minimized.
Gemäß einer weiteren Ausführungsform der Erfindung sindAccording to another embodiment of the invention
Lagerungen der Pumpennockenwelle nach Art von Gleitlagern ausgeführt. Durch diese Maßnahme lässt sich eine robuste und gleichzeitig einfache Lagerung der Pumpennockenwelle erzielen.Bearings of the pump camshaft designed in the manner of plain bearings. By this measure, a robust and at the same time easy storage of the pump camshaft can be achieved.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung einer bevorzugten Ausführungsform der Erfindung anhand der Figur näher dargestellt.Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIG.
Ausführungsform der Erfindung Die einzige Figur zeigt einen Längsschnitt der erfindungsgemäßen Hochdruckkraftstoffpumpe, bei welcher eine Pumpennockenwelle 1 über Gleitlagerungen 2a und 2b in einem Pumpengehäuse 3 gelagert ist. Die Pumpennockenwelle 1 verfügt des weiteren über eine polygone Ausbildung 4, über welche sie mit zwei Pumpenkolben 5a und 5b in Kontakt steht, die jeweils in auf dem Pumpengehäuse aufgesetzten Pumpenzylinderköpfen 6a und 6b verschiebbar geführt sind. Dabei wird eine rotatorische Bewegung der Pumpennockenwelle 1 über die polygone Ausbildung 4 in jeweils eine translatorische Bewegung der Pumpenkolben 5a und 5b umgesetzt. Oberhalb jedes Pumpenkolbens 5a und 5b und in dem jeweiligen Pumpenzylinderköpf 6a oder 6b ist jeweils ein Druckraum 7a und 7b angeordnet, in welchem jeweils bei einer Abwärtsbewegung des jeweiligen Pumpenkolbens 5a oder 5b über ein zugeordnetes Saugventil 8a oder 8b Kraftstoff gesaugt wird und anschließend bei einer Aufwärtsbewegung des jeweiligen Pumpenkolbens 5a oder 5b verdichtet und über ein jeweils zugeordnetes Hochdruckventil 9a oder 9b einem Hochdruckkreislauf und damit einem - hier nicht dargestellten - Hochdruckspeicher zugeführt wird. Als Besonderheit ist an dem Pumpengehäuse 3 eine Niederdruckeinheit 10 angegliedert, welche denEmbodiment of the invention The sole FIGURE shows a longitudinal section of the high-pressure fuel pump according to the invention, in which a pump camshaft 1 is mounted in a pump housing 3 via slide bearings 2a and 2b. The pump camshaft 1 further has a polygonal formation 4, via which it is in contact with two pump pistons 5a and 5b, which are guided displaceably respectively in pump cylinder heads 6a and 6b placed on the pump housing. In this case, a rotational movement of the pump camshaft 1 via the polygonal training 4 in each case a translational movement of the pump piston 5a and 5b implemented. Above each pump piston 5a and 5b and in the respective pump cylinder head 6a or 6b, respectively, a pressure chamber 7a and 7b is arranged, in each of which at a downward movement of the respective pump piston 5a or 5b via an associated suction valve 8a or 8b fuel is sucked and then in an upward movement The respective pump piston 5 a or 5 b is compressed and fed via a respective associated high-pressure valve 9 a or 9 b a high-pressure circuit and thus a - not shown here - high-pressure accumulator. As a special feature, a low pressure unit 10 is attached to the pump housing 3, which the
Niederdruckkreislauf aufnimmt. An diese Niederdruckeinheit 10 ist des weiteren auf einer, dem Pumpengehäuse 3 abgewandten Seite eine Zahnradpumpe 11 platziert, welche die Förderpumpe des Niederdruckkreislaufes darstellt. Als weitere Besonderheit ist eine Zumesseinheit 12, welche in der Ansicht nur gestrichelt angedeutet ist, auf einer dem Pumpengehäuse 3 zugewandten Seite in die Niederdruckeinheit 10 integriert. Die Zumesseinheit 12 liegt dabei außerhalb des Pumpengehäuses 3. Ferner werden Anschlüsse 13a und 13b des Niederdruckkreislaufs an der Niederdruckeinheit 10 durch das Pumpengehäuse 3 und die Pumpenzylinderköpfe 6a und 6b überragt, sodass diese Anschlüsse 13a und 13b gegen mechanische Einwirkungen abgeschirmt werden.Low pressure circuit absorbs. Furthermore, a gear pump 11, which represents the delivery pump of the low-pressure circuit, is placed on this low-pressure unit 10 on a side facing away from the pump housing 3. As a further special feature, a metering unit 12, which is only indicated by dashed lines in the view, is integrated into the low-pressure unit 10 on a side facing the pump housing 3. Furthermore, ports 13a and 13b of the low-pressure circuit are surmounted by the pump housing 3 and the pump cylinder heads 6a and 6b, so that these ports 13a and 13b are shielded against mechanical effects.
Durch die Verwendung der Niederdruckeinheit 10 kann das Pumpengehäuse 3 als Standardgehäuse ausgebildet werden, da verschiedenartige Verläufe der Druckleitungen des Niederdruckkreislaufs nur in dieser Niederdruckeinheit 10 variiert werden müssen. By using the low-pressure unit 10, the Pump housing 3 are formed as a standard housing, since different courses of the pressure lines of the low-pressure circuit must be varied only in this low-pressure unit 10.

Claims

Ansprüche claims
1. Hochdruckkraftstoffpumpe zum Betrieb einer1. High pressure fuel pump for operating a
Brennkraftmaschine mit einem Pumpengehäuse (3), in welchem eine Pumpennockenwelle (1) gelagert ist und über eine polygone Ausbildung (4) mit mindestens zwei Pumpenkolben (5a, 5b), die verschiebbar in jeweils zugeordneten, auf dem Pumpengehäuse (3) aufgesetzten Pumpenzylinderköpfen (6a, 6b) geführten sind, in Verbindung steht, wobei eine Umsetzung der rotatorischen Bewegung der Pumpennockenwelle (1) in jeweils translatorische Bewegungen der mindestens zwei Pumpenkolben (5a, 5b) erfolgt, um Kraftstoff aus einem Niederdruckkreislauf anzusaugen, auf Hochdruck zu verdichten und zu einem Hochdruckspeicher zu fördern, dadurch gekennzeichnet, dass eine Niederdruckeinheit (10), welche den Niederdruckkreislauf aufnimmt an dem Pumpengehäuse (3) befestigt ist.Internal combustion engine with a pump housing (3) in which a pump camshaft (1) is mounted and via a polygonal training (4) with at least two pump pistons (5a, 5b) slidably in respectively associated, on the pump housing (3) patched pump cylinder heads ( 6a, 6b) are guided, wherein an implementation of the rotational movement of the pump camshaft (1) in each translational movements of the at least two pump pistons (5a, 5b) takes place to suck fuel from a low pressure circuit, to compress to high pressure and to to promote a high pressure accumulator, characterized in that a low pressure unit (10) which receives the low pressure circuit is fixed to the pump housing (3).
2. Hochdruckkraftstoffpumpe nach Anspruch 1 dadurch gekennzeichnet, dass auf der vom Pumpengehäuse (3) abgewandten Seite der Niederdruckeinheit (10) eine Förderpumpe aufgesetzt ist.2. High-pressure fuel pump according to claim 1, characterized in that on the side facing away from the pump housing (3) side of the low pressure unit (10), a feed pump is placed.
3. Hochdruckkraftstoffpumpe nach Anspruch 2, dadurch gekennzeichnet, dass die Förderpumpe nach Art einer Zahnradpumpe (11) realisiert ist.3. High-pressure fuel pump according to claim 2, characterized in that the feed pump in the manner of a gear pump (11) is realized.
4. Hochdruckkraftstoffpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Zumesseinheit (12) zur Zudosierung des zu verdichtenden Kraftstoffs auf der dem Pumpengehäuse (3) zugewandten Seite, außerhalb des Pumpengehäuses (3) liegend in die Niederdruckeinheit (10) integriert ist.4. High-pressure fuel pump according to one of claims 1 to 3, characterized in that a metering unit (12) for metering the fuel to be compressed on the pump housing (3) facing side, outside of the pump housing (3) lying in the low-pressure unit (10) integrated is.
5. Hochdruckkraftstoffpumpe nach einem der vorhergehenden Ansprüche , dadurch gekennzeichnet, dass das Pumpengehäuse (3) und/oder die Pumpenzylinderköpfe (6a, 6b) an der Niederdruckeinheit (10) angeordnete Anschlüsse (13a, 13b) des Niederdruckkreislaufs überragen.5. High pressure fuel pump according to one of the preceding Claims, characterized in that the pump housing (3) and / or the pump cylinder heads (6a, 6b) on the low-pressure unit (10) arranged connections (13a, 13b) of the low-pressure circuit protrude.
6. Hochdruckkraftstoffpumpe nach Anspruch 2, dadurch gekennzeichnet, dass ein Antrieb der Förderpumpe über die Pumpennockenwelle (1) erfolgt.6. High-pressure fuel pump according to claim 2, characterized in that a drive of the feed pump via the pump camshaft (1).
7. Hochdruckkraftstoffpumpe nach einem der vorhergehenden7. High pressure fuel pump according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass Lagerungen der PumpennockenwelleClaims, characterized in that bearings of the pump camshaft
(1) nach Art von Gleitlagern (2a, 2b) ausgeführt sind.(1) in the manner of plain bearings (2a, 2b) are executed.
8. Brennkraftmaschine zum Antrieb eines Kraftfahrzeuges, umfassend eine Hochdruckkraftstoffpumpe nach einem der Ansprüche8. Internal combustion engine for driving a motor vehicle, comprising a high-pressure fuel pump according to one of the claims
1 bis 7. 1 to 7.
EP09779639.5A 2008-08-04 2009-06-05 High-pressure fuel pump Not-in-force EP2310679B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008040966A DE102008040966A1 (en) 2008-08-04 2008-08-04 High pressure fuel pump
PCT/EP2009/056913 WO2010015436A1 (en) 2008-08-04 2009-06-05 High-pressure fuel pump

Publications (2)

Publication Number Publication Date
EP2310679A1 true EP2310679A1 (en) 2011-04-20
EP2310679B1 EP2310679B1 (en) 2018-01-24

Family

ID=41077992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09779639.5A Not-in-force EP2310679B1 (en) 2008-08-04 2009-06-05 High-pressure fuel pump

Country Status (5)

Country Link
EP (1) EP2310679B1 (en)
CN (1) CN102105688B (en)
DE (1) DE102008040966A1 (en)
RU (1) RU2516081C2 (en)
WO (1) WO2010015436A1 (en)

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Publication number Priority date Publication date Assignee Title
RU2068110C1 (en) * 1992-01-29 1996-10-20 Олег Иванович Савинов Fuel injection system for internal combustion engine
RU2116496C1 (en) * 1994-10-24 1998-07-27 Александр Алексеевич Пустынцев Multifunction pump unit
IT239879Y1 (en) 1996-12-23 2001-03-13 Elasis Sistema Ricerca Fiat REFINEMENTS TO A PISTON PUMP, IN PARTICULAR TO A RADIAL APISTON PUMP FOR THE FUEL OF AN INTERNAL COMBUSTION ENGINE.
DE19736160A1 (en) * 1997-08-20 1999-02-25 Bosch Gmbh Robert High pressure fuel pump for IC engine in common rail systems
DE10228551A1 (en) * 2002-06-26 2004-01-22 Siemens Ag Radial piston pump
DE10337847A1 (en) * 2003-08-18 2005-03-17 Robert Bosch Gmbh Pump arrangement with a high-pressure pump and a low-pressure pump upstream of this for a fuel injection device of an internal combustion engine
US8061328B2 (en) * 2005-03-09 2011-11-22 Caterpillar Inc. High pressure pump and method of reducing fluid mixing within same
JP2007154711A (en) * 2005-12-02 2007-06-21 Denso Corp Fuel injection pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010015436A1 *

Also Published As

Publication number Publication date
DE102008040966A1 (en) 2010-02-11
WO2010015436A1 (en) 2010-02-11
RU2011108007A (en) 2012-09-10
RU2516081C2 (en) 2014-05-20
CN102105688B (en) 2015-11-25
EP2310679B1 (en) 2018-01-24
CN102105688A (en) 2011-06-22

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