EP1552145B1 - Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne - Google Patents

Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne Download PDF

Info

Publication number
EP1552145B1
EP1552145B1 EP03807731A EP03807731A EP1552145B1 EP 1552145 B1 EP1552145 B1 EP 1552145B1 EP 03807731 A EP03807731 A EP 03807731A EP 03807731 A EP03807731 A EP 03807731A EP 1552145 B1 EP1552145 B1 EP 1552145B1
Authority
EP
European Patent Office
Prior art keywords
pressure
casing
pump
bores
pressure pump
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 - Lifetime
Application number
EP03807731A
Other languages
German (de)
English (en)
Other versions
EP1552145A1 (fr
Inventor
Burkhard Boos
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 EP1552145A1 publication Critical patent/EP1552145A1/fr
Application granted granted Critical
Publication of EP1552145B1 publication Critical patent/EP1552145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/08—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/007—Cylinder heads
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the invention relates to a high-pressure pump, in particular for a fuel injection device for an internal combustion engine according to the preamble of claim 1.
  • Such a high-pressure pump is through the DE 198 02 476 A1 known.
  • This high-pressure pump has a pump housing, in which a plurality of pump elements are arranged.
  • the pump elements convey fuel via a high-pressure channel system to a common high-pressure connection.
  • the pump housing of the high-pressure pump is formed in one piece and the high-pressure channel system has through the pump housing extending high pressure bores, which open into one another and thereby form intersections.
  • high pressures such as are required for fuel injectors to achieve high performance and low emissions of pollutants in internal combustion engines, resulting in high loads for the pump housing.
  • Such a high pressure pump is also from the EP 1 188 926 A2 known.
  • the subject matter of claim 1 is delimited in two-part form with respect to this document.
  • intersections of the high-pressure bores result in voltage spikes in the pump housing, according to which the pump housing must be dimensioned and designed with regard to the material. In this case, a complex hardening treatment of the pump housing is required. The production of the high-pressure pump is expensive for these reasons.
  • the high pressure pump according to the invention with the features of claim 1 has the advantage that the housing body is less stressed because of the lack of intersections and thus can be made of a less expensive material and in a simpler way, making a total of the production of the high-pressure pump is less expensive. Holes with intersections are usually present in the housing covers, so that they must be made of material with appropriate strength anyway and there resulting further intersections of high-pressure holes lead to no increased effort.
  • FIG. 1 a high-pressure pump in a longitudinal section
  • FIG. 2 the high pressure pump in a cross section along line II-II in FIG. 1 according to a first embodiment
  • FIG. 3 the high pressure pump in cross section according to a second embodiment.
  • a high-pressure pump is shown, which is provided in particular for a fuel injection device for an internal combustion engine, for example a motor vehicle. Due to the high-pressure pump while fuel is pumped under high pressure of up to 2000, For example, in a memory, is taken from the fuel for injection to the internal combustion engine.
  • the high-pressure pump has a multipart pump housing, which has a housing body 10, a flange part 12 and housing cover 10 connected to the housing body 10.
  • the pump housing several, for example, three circumferentially uniformly distributed pump elements 16 are arranged.
  • a drive shaft 18 is rotatably mounted, through which the pump elements 16 are driven.
  • the drive shaft 18 is rotatably supported about a bearing 19 in the housing body 10 and a bearing point 22 in the flange 12 about an axis 19 and is driven in a manner not shown by the internal combustion engine.
  • the drive shaft 18 has an eccentric portion 24 on which a cam ring 26 is mounted.
  • the pump elements 16 each have a pump piston 28 which is slidably guided in an approximately at least approximately radially to the drive shaft 18 extending cylinder bore 30.
  • the cylinder bores 30 of the pump elements 16 may be formed in the housing body 10 or in the housing covers 14. For each pump element 16, a housing cover 14, which covers this radially with respect to the axis of rotation 19 of the drive shaft 18, is provided.
  • each pump element 16 is supported with its piston foot 29 on the cam ring 26, wherein the piston foot 29 by a spring 32 which is supported on the one hand on the housing body 10 or the housing cover 14 and on the other hand on the piston foot 29, is held in contact with the cam ring 26 ,
  • a pump working space 34 is limited in the cylinder bore 30 with its end face.
  • the pump working chamber 34 can be connected to a fuel inlet channel 38 in which low pressure prevails by means of an inlet valve 36 which opens into the pump working chamber 34.
  • an outlet valve 40 which opens toward the store via a high-pressure passage system which extends in the housing body 10 and in the housing covers 14 and which is explained in more detail below.
  • the respective pump piston 28 When the respective pump piston 28 moves radially inward, it performs a suction stroke, wherein the respective inlet valve 36 is opened, so that fuel flows through the fuel inlet passage 38 into the respective pump working chamber 34, while the respective outlet valve 40 is closed.
  • the respective pump piston 28 moves radially outward, it performs a delivery stroke, wherein the respective inlet valve 36 is closed and the fuel compressed by the pump piston 28 passes through the open outlet valve 40 under high pressure via the high-pressure channel system in the memory.
  • a high-pressure port 42 is arranged, to which a high pressure line leading to the memory 44 is connected.
  • the pumped by the pump elements 16 fuel is passed through the high-pressure channel system for common to all pump elements 16 high-pressure port 42.
  • the high-pressure port 42 may be arranged with any orientation on the housing cover 14a.
  • the respective inlet valve 36 and / or the respective outlet valve 40 of each pump element 16 can be arranged in the respective housing cover 14a, b, c.
  • the following is based on the FIG. 2 the high-pressure channel system in the housing body 10 and in the housing covers 14a, b, c explained in more detail.
  • the two housing covers 14b, c where not the high-pressure port 42 is arranged, leads to the respective outlet valve 40 then each one Bore 50 to the housing body 10 down from.
  • the holes 50 extend at least approximately radially to the axis of rotation 19 of the drive shaft 18.
  • the mouths of the holes 50 may be widened in diameter, for example conical or spherical.
  • the housing cover 14a, b, c and the housing body 10 have mutually facing, at least approximately flat surfaces 11 and 15, with which they rest against each other.
  • high-pressure bores 52 and 54 which each connect to the bores 50 of the two housing cover 14b, c and lead to the housing cover 14a, on which the common high-pressure port 42 is arranged.
  • c facing surfaces 15 of the housing body 10 each have a recess 56 is introduced, at the at least approximately flat bottom 57, the high-pressure bore 52 and 54 opens.
  • the mouth of the high-pressure bore 52 or 54 at the bottom 57 of the recess 56 is preferably rounded in each case. This can be done with a form drill, which can be attached to the flat bottom 57 of the recess 56.
  • the depressions 56 each have a larger cross-section than the high-pressure bores 52, 54.
  • a respective high pressure bores 52,54 surrounding sealing ring 58 is inserted, through which the transition from the bore 50 in the housing cover 14b, c is sealed to the high pressure bore 52 and 54 in the housing part 10.
  • a recess 60 is introduced into the housing cover 14a facing surface 11 of the housing body 10, which has an at least approximately flat bottom 61.
  • the two high pressure bores 52 and 54 in the housing body 10 open into the recess 60 at a distance from each other.
  • the depression 60 is thus larger in its cross section than the sum of the diameters of the two high-pressure bores 52, 54.
  • the mouth of the high pressure bores 52,54 at the bottom 61 of the Recess 60 is preferably rounded in each case, which in turn can be easily produced by means of a form drill which can be attached to the flat bottom 61 of the depression 60.
  • a high-pressure bores 52,54 surrounding sealing ring 62 is inserted.
  • a bore 50 which is arranged at least approximately centrally relative to the depression 60, which leads to the common high-pressure connection 42, is introduced into the housing cover 14a.
  • the bore 50 extends at least approximately radially to the axis of rotation 19 of the drive shaft 18.
  • the recess 60 facing the mouth of the bore 50 may be widened in diameter, for example, conical or rounded.
  • the transition from the high-pressure bores 52, 54 in the housing body 10 to the bore 50 in the housing cover 14 a is sealed by the sealing ring 62.
  • the bore 50 in the housing cover 14a and the outlet of the outlet cover 40 arranged in the housing cover 14a lead to the common high pressure port 42.
  • the high pressure bores 52,54 extend in the housing body 10 without intersections and are merged in the recess 60 in the region of the transition from the housing body 10 to the housing cover 14a ,
  • the stress on the housing body 10 is thus kept so low that it can be made of inexpensive metal with sufficient strength and without special hardening treatment such as steel or at lower pressure generated by the pump elements 16 and light metal such as aluminum.
  • the pressure generated by the high-pressure pump can be increased while still ensuring a sufficient durability of the housing body 10.
  • the housing cover 14 a, b, c have intersections, at the transition of the flow of the respective exhaust valve 40 into the bore 50 and are made of metal with a correspondingly higher strength than the housing body 10 made, for example, hardened steel.
  • FIG. 3 is the high-pressure pump according to a second embodiment shown, in which the structure is substantially the same as in the first embodiment and to which only the deviating features are explained below.
  • the housing cover 14a facing surface 11 of the housing body 10 while two separate recesses 160 are introduced, wherein in each recess 160, a high-pressure bore 52 and 54 opens.
  • the recesses 160 each have an at least approximately flat bottom 161, and the mouth of the high-pressure bore 52 or 54 in the respective recess 160 is preferably rounded.
  • two bores 152,154 are introduced, which continue the high-pressure bores 52,54 to the common high pressure port 42 back.
  • each recess 160 is a respective high-pressure bore 52 and 54 surrounding sealing ring 162 is used to seal the transition from the housing body 10 to the housing cover 14a. Also in the second embodiment thus run the high pressure bores 52,54 in the housing body 10 without intersections and there are only in the housing cover 14a intersections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)

Claims (8)

  1. Pompe haute pression, notamment pour un dispositif d'injection de carburant d'un moteur à combustion interne, comprenant un carter de pompe (10, 12, 14), dans lequel sont disposés plusieurs éléments de pompe (16), du liquide à haute pression étant refoulé par les éléments de pompe (16) par le biais d'un système de canal haute pression jusqu'à un raccord haute pression commun (42), le carter de pompe présentant un corps de carter (10) et pour chaque élément de pompe (16), un couvercle de carter (14) le recouvrant, connecté au corps de carter (10), caractérisé en ce que le système de canal haute pression présente des alésages haute pression (52, 54) s'étendant sans fissurage dans le corps de carter (10), qui sont réunis au raccord haute pression commun (42) dans la région de la transition du corps de carter (10) à l'un des couvercles de carter (14a) ou dans l'un des couvercles de carter (14a).
  2. Pompe haute pression selon la revendication 1, caractérisée en ce que le raccord haute pression commun (42) est disposé sur le couvercle de carter (14a).
  3. Pompe haute pression selon la revendication 1 ou 2, caractérisée en ce que les alésages haute pression (52, 54) sont réunis dans la région de la transition du corps de carter (10) au couvercle de carter (14a) et débouchent dans un renfoncement (60) pratiqué dans une surface (11) du corps de carter (10) tournée vers le couvercle de carter (14a), depuis lequel un alésage unique (50) dans le couvercle de carter (14a) conduit au raccord haute pression commun (42).
  4. Pompe haute pression selon la revendication 3, caractérisée en ce que le fond (61) du renfoncement (60) est réalisé au moins approximativement sous forme plane et en ce que les embouchures des alésages haute pression (52, 54) au fond (61) du renfoncement (60) sont arrondies.
  5. Pompe haute pression selon la revendication 1 ou 2, caractérisée en ce que les alésages haute pression (52, 54) débouchent à chaque fois dans un renfoncement (160) pratiqué dans une surface (11) du corps de carter (10) tournée vers le couvercle de carter (14a), en ce que des prolongements séparés (152, 154) des alésages haute pression (52, 54) s'étendent dans le couvercle de carter (14a), qui sont réunis vers le raccord haute pression commun (42) dans le couvercle de carter (14a).
  6. Pompe haute pression selon la revendication 5, caractérisée en ce que le fond (161) des renfoncements (160) est réalisé au moins approximativement sous forme plane, et en ce que les embouchures des alésages haute pression (52, 54) au fond (161) des renfoncements (160) sont à chaque fois arrondies.
  7. Pompe haute pression selon l'une quelconque des revendications 3 à 6, caractérisée en ce qu'un élément d'étanchéité (62 ; 162) pour l'étanchéité de la transition du corps de carter (10) au couvercle de carter (14a) est à chaque fois inséré dans le renfoncement (60) ou les renfoncements (160).
  8. Pompe haute pression selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de carter (10) se compose d'un métal ayant une plus faible solidité que les couvercles de carter (14).
EP03807731A 2002-10-09 2003-06-20 Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne Expired - Lifetime EP1552145B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10247142 2002-10-09
DE10247142A DE10247142A1 (de) 2002-10-09 2002-10-09 Hochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
PCT/DE2003/002061 WO2004033905A1 (fr) 2002-10-09 2003-06-20 Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1552145A1 EP1552145A1 (fr) 2005-07-13
EP1552145B1 true EP1552145B1 (fr) 2010-06-02

Family

ID=32038410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03807731A Expired - Lifetime EP1552145B1 (fr) 2002-10-09 2003-06-20 Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne

Country Status (6)

Country Link
US (1) US7178509B2 (fr)
EP (1) EP1552145B1 (fr)
JP (1) JP4384043B2 (fr)
CN (1) CN100406722C (fr)
DE (2) DE10247142A1 (fr)
WO (1) WO2004033905A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221305A1 (de) * 2002-05-14 2003-11-27 Bosch Gmbh Robert Radialkolbenpumpe für Kraftstoffeinspritzsystem mit verbesserter Hochdruckfestigkeit
JP4650629B2 (ja) * 2004-11-16 2011-03-16 株式会社アドヴィックス ラジアルプランジャポンプ
DE102006006555B4 (de) * 2006-02-13 2008-03-06 Siemens Ag Hochdruckpumpe
DE102008000705A1 (de) 2008-03-17 2009-09-24 Robert Bosch Gmbh Hochdruckpumpe
DE102008000711A1 (de) 2008-03-17 2009-09-24 Robert Bosch Gmbh Hochdruckpumpe
DE102008000729A1 (de) 2008-03-18 2009-09-24 Robert Bosch Gmbh Hochdruckpumpe
DE102008001587A1 (de) * 2008-05-06 2009-11-12 Robert Bosch Gmbh Hochdruckkraftstoffpumpe zum Betrieb einer Brennkraftmaschine
DE102008001793A1 (de) 2008-05-15 2009-11-19 Robert Bosch Gmbh Hochdruckpumpe
DE102008001856A1 (de) 2008-05-19 2009-11-26 Robert Bosch Gmbh Steckpumpe
EP2143935B1 (fr) * 2008-07-08 2011-01-19 Continental Automotive GmbH Unité de pompe destinée à l'écoulement d'un fluide
DE102008041751A1 (de) * 2008-09-02 2010-03-04 Robert Bosch Gmbh Hochdruck-Radialkolbenpumpe
DE102008042075A1 (de) 2008-09-15 2010-03-18 Robert Bosch Gmbh Vorrichtung zur Kraftstoffversorgung einer Verbrennungskraftmaschine
DE102008043841A1 (de) 2008-11-19 2010-05-20 Robert Bosch Gmbh Kugelventil für Hochdruckpumpen
DE102009000965A1 (de) * 2009-02-18 2010-08-19 Robert Bosch Gmbh Hochdruckkraftstoffpumpe mit intergriertem Hochdruckspeicher
DE102009001459A1 (de) 2009-03-11 2010-09-16 Robert Bosch Gmbh Einspritzpumpe für eine Verbrennungsmaschine
DE102009029623A1 (de) 2009-09-21 2011-03-24 Robert Bosch Gmbh Hochdruckpumpe
DE102013210036A1 (de) * 2013-05-29 2014-12-04 Robert Bosch Gmbh Hochdruckpumpe für ein Kraftstoffeinspritzsystem
DE112014002794A5 (de) * 2013-06-13 2016-03-10 Magna Powertrain Bad Homburg GmbH Radialkolbenverdichter
CN103470385B (zh) * 2013-09-18 2015-09-23 南京航空航天大学 低速船用柴油机高压共轨燃油喷射控制系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119340A (en) * 1961-09-22 1964-01-28 Thompson Ramo Wooldridge Inc Variable pump for fuel injection supply
JPH08135462A (ja) * 1994-11-09 1996-05-28 Yamaha Motor Co Ltd 縦型エンジン
FI101999B1 (fi) * 1997-02-20 1998-09-30 Waertsilae Nsd Oy Ab Järjestely polttomoottorin ruiskutuspumppua varten
DE19716242A1 (de) * 1997-04-18 1998-10-22 Bosch Gmbh Robert Kraftstoffhochdruckpumpe
DE19726572A1 (de) * 1997-06-23 1998-12-24 Mannesmann Rexroth Ag Radialkolbenpumpe
TW384358B (en) * 1997-09-25 2000-03-11 Mitsubishi Electric Corp High pressure fuel supply pump body for an in-cylinder fuel injection engine
DE19802476A1 (de) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Pumpenanordnung zur Kraftstoffhochdruckversorgung
DE10046315C2 (de) * 2000-09-19 2002-11-14 Siemens Ag Hochdruckpumpe für ein Speichereinspritzsystem sowie Speichereinspritzsystem

Also Published As

Publication number Publication date
JP4384043B2 (ja) 2009-12-16
DE50312780D1 (de) 2010-07-15
US20060008363A1 (en) 2006-01-12
JP2006502338A (ja) 2006-01-19
DE10247142A1 (de) 2004-04-22
WO2004033905A1 (fr) 2004-04-22
EP1552145A1 (fr) 2005-07-13
US7178509B2 (en) 2007-02-20
CN100406722C (zh) 2008-07-30
CN1688810A (zh) 2005-10-26

Similar Documents

Publication Publication Date Title
EP1552145B1 (fr) Pompe haute pression notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne
EP1727983B1 (fr) Pompe haute pression, notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne
EP2032850B1 (fr) Pompe haute pression conçue en particulier pour un dispositif d'injection de carburant d'un moteur à combustion interne
EP1931875B1 (fr) Pompe haute pression utilisee en particulier pour un dispositif d'injection du carburant d'un moteur a combustion interne,
EP2235368B1 (fr) Pompe, en particulier pompe à carburant haute pression
EP1636488B1 (fr) Soupape de non-retour conçue en particulier pour une pompe haute pression d'un dispositif d'injection de carburant pour un moteur a combustion interne
DE102010031600A1 (de) Hochdruckpumpe
EP1784571B1 (fr) Pompe haute pression pour un systeme d'injection de carburant d'un moteur a combustion interne
DE102011089857A1 (de) Pumpe, insbesondere Kraftstoffhochdruckpumpe für eine Kraftstoffeinspritzeinrichtung
DE10117600C1 (de) Hochdruck-Kraftstoffpumpe für ein Kraftstoffsystem einer direkteinspritzenden Brennkraftmaschine, Kraftstoffsystem sowie Brennkraftmaschine
EP1736662B1 (fr) Clapet anti-retour, notamment pour une pompe à haute pression d'un dispositif d'injection de combustible pour un moteur à combustion interne
WO2004055368A1 (fr) Pompe haute pression pour un dispositif d'injection de carburant d'un moteur a combustion interne
EP1537334B1 (fr) Pompe, notamment pour un systeme d'injection de carburant destine a un moteur a combustion interne
EP1759115B1 (fr) Pompe a haute pression pour un dispositif d'injection de carburant d'un moteur a combustion interne
DE10045281C1 (de) Hochdruckpumpe
DE10355028A1 (de) Hochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
WO2005090784A1 (fr) Pompe haute pression, notamment d'un dispositif d'injection de carburant d'un moteur a combustion interne
WO2009013175A1 (fr) Pompe, en particulier pompe à carburant haute pression
DE102013204897A1 (de) Pumpe, insbesondere Kraftstoffhochdruckpumpe für eine Kraftstoffeinspritzeinrichtung
DE102022208452A1 (de) Kraftstoffüberströmventil für eine Kraftstoffhochdruckpumpe
DE102012221611A1 (de) Pumpe, insbesondere Kraftstoffhochdruckpumpe für eine Kraftstoffeinspritzeinrichtung
DE10139545A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE102013212248A1 (de) Hochdruckpumpe
DE102011082733A1 (de) Pumpe, insbesondere Kraftstoffhochdruckpumpe
WO2005052356A1 (fr) Pompe a haute pression, notamment pour un systeme d'injection de carburant de moteur a combustion interne

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: 20050509

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

RBV Designated contracting states (corrected)

Designated state(s): DE FR IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 50312780

Country of ref document: DE

Date of ref document: 20100715

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110303

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50312780

Country of ref document: DE

Effective date: 20110302

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120822

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120620

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20131025

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130621

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50312780

Country of ref document: DE

Effective date: 20140101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140620

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220621

Year of fee payment: 20