EP0925446B2 - Pompe a piston radial pour alimentation haute pression en carburant - Google Patents

Pompe a piston radial pour alimentation haute pression en carburant Download PDF

Info

Publication number
EP0925446B2
EP0925446B2 EP98941252A EP98941252A EP0925446B2 EP 0925446 B2 EP0925446 B2 EP 0925446B2 EP 98941252 A EP98941252 A EP 98941252A EP 98941252 A EP98941252 A EP 98941252A EP 0925446 B2 EP0925446 B2 EP 0925446B2
Authority
EP
European Patent Office
Prior art keywords
piston pump
radial piston
closing element
pump according
suction
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
EP98941252A
Other languages
German (de)
English (en)
Other versions
EP0925446B1 (fr
EP0925446A1 (fr
Inventor
Josef Güntert
Ralf HÄGELE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7835426&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0925446(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0925446A1 publication Critical patent/EP0925446A1/fr
Application granted granted Critical
Publication of EP0925446B1 publication Critical patent/EP0925446B1/fr
Publication of EP0925446B2 publication Critical patent/EP0925446B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F04B1/0421—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7504—Removable valve head and seat unit
    • Y10T137/7559—Pump type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7931—Spring in inlet

Definitions

  • valve-controlled high-pressure pump in which the valve seat of the suction-side check valve is arranged in the housing. Above this check valve is a suction chamber, which is sealed by a closure element to the outside.
  • a piston pump of a hydraulic brake system for a motor vehicle in which one of two intake valves is arranged in a closure element.
  • the present invention seeks to provide a more compact design of the radial piston pump.
  • the passage opening in the component is discontinued or stepped and the closure element is pressed sealingly against a step of the passage opening with a, in particular annular collar-like sealing flange and the intake valve is centrally located inside the Sealing flange is arranged.
  • a sealing means for example in the form of an elastomeric sealing ring can be used, while the seal is effected to the cylinder chamber by pressing the sealing flange against the step.
  • the closure element can be tightened as a screw against the stage.
  • An oblique bore extending obliquely to the longitudinal direction of the passage opening into the interior of the closure element with respect to the suction-side check valve can be provided by an annular space in order to fluidly connect the suction side of the check valve to the annular space.
  • the closure element may have on its side facing the piston a cup-shaped recess in which the suction-side check valve is received.
  • FIGS. 1 and 2 show a radial piston pump for high-pressure fuel supply in fuel injection systems of internal combustion engines.
  • the radial piston pump is designed with an integrated demand quantity control.
  • As a control concept the principle of Saugdrosselregelung is pursued.
  • the radial piston pump comprises a drive shaft 4 mounted in a pump housing 2 with an eccentrically formed shaft section 6.
  • an intermediate bushing 8 against which the shaft section 6 is rotatable.
  • the intermediate bush 8 comprises three flattened portions 10 which are each offset by 120 °, against which a respective piston 12 with a block-like abutment portion 14 is supported.
  • the pistons 12 are slidably received in the radial direction in each case in a cylindrical space 18 formed by a solid metallic component 16.
  • a passage opening 20 is provided in the component 16.
  • the passage opening 20 is stepped and has a smaller diameter portion 22 forming the actual cylinder chamber 18 and a larger diameter portion 24.
  • a closure element 26 is inserted pressure-tight.
  • the closure element 26 is a closure screw 28, which is screwed with the interposition of an O-ring seal 30 in the larger diameter portion 24 of the through hole 20.
  • the screw plug 28 On its side facing the pump piston 12, the screw plug 28 has an annular collar-like sealing flange 31, with which the screw plug 23 is sealingly pressed against an axial step portion 32 between the smaller diameter section and the larger diameter section 22, 24 of the passage opening 20.
  • intake-side check valve is integrated.
  • the screw plug 28 and the check valve 34, the smaller diameter portion 22 of the through hole 20 and the compressor-side end face 36 of the pump piston 12 define a compressor or high-pressure chamber 38.
  • the drive shaft 4 of the in FIG. 1 turned position up to 180 °, so while the in FIG. 1 above shown piston moved out of the cylinder chamber 18 under the action of a compression spring 40.
  • the volume of the pressure chamber 38 increases and the suction-side check valve 34 opens in a manner to be described in more detail.
  • the check valve 34 is closed and a in FIG. 2 illustrated high pressure side check valve 42 opens.
  • the high-pressure fuel in the pressure chamber 38 can then flow via an outgoing from the cylinder chamber 18 branch passage 44 via the high-pressure side check valve 42 and a port 46 to an engine piston or a high-pressure reservoir.
  • the closure screw 28 in the axial section 32 of the through hole 20 has a slightly recessed in its radial direction outer diameter and limits together with the inside of the larger diameter portion 24 of the passage opening 20 an annular space 48.
  • this annular space 48 opens a radial Fuel supply opening 50 in the component 16. Then go from the annular space 48 a plurality of obliquely extending to the longitudinal direction of the through hole 20 holes 52, and open in a central cup-shaped recess 54 in the screw 28th
  • the suction-side check valve 34 is integrated as follows in the cup-shaped recess 54 of the plug 28: In the piston-facing free end of the cup-shaped recess 54 is a valve seat 56 defining element 58 pressure-tight screwed with adhesive.
  • the element 58 has a central passage opening 60 for a plunger 62 of a valve body 64.
  • the valve body 64 has on the piston-facing side of the element 58 on a valve plate 66 which is sealingly against the valve seat 56 can be applied.
  • FIG. 4 illustrated embodiment differs from the in FIG. 3 represented in that the element 58 'is not screwed by means of adhesive in the cup-shaped recess 54', but is fixed inextricably by a peel riveting, see reference numeral 74th
  • the suction-side check valve 80 comprises a valve body 82 which is housed entirely in a cup-shaped recess 84 of the screw plug 86.
  • the valve body 82 is biased by a spring 88 in the direction of the bottom 90 of the cup-shaped recess 84, wherein the spring 88 is supported against the inside of a cover member 92 which is also cup-shaped in cross-section and a flange 94 of the screw plug 86 engages around and this is caulked at several points, see reference numeral 96.
  • an oblique bore 100 leads to a central blind bore 102 introduced from the bottom 90 of the cup-shaped recess 84.

Landscapes

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

Claims (10)

  1. Pompe à piston radial pour l'alimentation haute pression en carburant pour un système d'injection en carburant d'un moteur à combustion interne, en particulier pour un système d'injection à rampe commune, avec un arbre d'entraînement (4) logé dans un boîtier de pompe (2), réalisé de manière excentrique ou qui présente plusieurs rehaussements en forme de cames dans la direction périphérique et avec de préférence plusieurs pistons (12) disposés radialement par rapport à l'arbre d'entraînement (4) chacun dans une chambre de cylindre (18) qui sont disposés coulissants d'avant en arrière lors des rotations de l'arbre d'entraînement (4) dans la chambre de cylindre et avec un clapet anti-retour (80, 42) se trouvant du côté de l'aspiration et du côté haute pression et avec une pièce de construction (16) avec une ouverture de passage (20) constituant la chambre de cylindre (18) dans l'extrémité radiale extérieure de laquelle est installé un élément de verrouillage (26, 86), l'élément de verrouillage (26, 86) étant fermé étanche en pression vers l'extérieur dans la direction longitudinale de l'ouverture de passage (20) constituant la chambre cylindrique et l'alimentation en carburant vers le clapet anti-retour (80, 42) du côté de l'aspiration se faisant au moyen d'une ouverture d'alimentation en carburant (50) essentiellement radiale par rapport à la direction longitudinale, dans la pièce de construction (16), caractérisée en ce que le clapet anti-retour (80, 42) du côté de l'aspiration est intégré dans l'élément de verrouillage (26), en ce que le corps de soupape (82) du clapet anti-retour (80) du côté de l'aspiration est prévu dans un évidement en forme de pot (84) de l'élément de verrouillage (86) et précontraint dans le sens de la fermeture de manière étanche contre la zone d'entrée d'une ouverture (102) réalisée dans le fond (90) de l'évidement en forme de pot (84) et communiquant avec l'alimentation en carburant.
  2. Pompe à piston radial selon la revendication 1, caractérisée en ce que l'élément de verrouillage (26) est une vis de verrouillage (86) qui est vissée dans un filetage intérieur prévu à l'extrémité radiale extérieure de la pièce de construction (16).
  3. Pompe à piston radial selon l'une des revendications 1 à 2, caractérisée en ce que l'ouverture de passage (20) est réalisée décalée ou échelonnée et en ce que l'élément de verrouillage (26) est pressé de manière étanche avec une bride d'étanchéité (31) en particulier annulaire contre un échelon (32) de l'ouverture de passage et le clapet anti-retour (80) est disposé central à l'intérieur de la bride d'étanchéité (31).
  4. Pompe à piston radial selon la revendication 3, caractérisée en ce qu'à l'opposé de la bride d'étanchéité (31), radialement à l'extérieur, on prévoit une chambre annulaire (98) entre l'élément de verrouillage (26, 86) et la paroi de la pièce de construction (16) limitant l'ouverture de passage (20), chambre annulaire dans laquelle débouche l'ouverture d'alimentation en carburant (50).
  5. Pompe à piston radial selon la revendication 4, caractérisée en ce qu'on prévoit un perçage oblique (100) s'étendant à partir de la chambre annulaire (98), obliquement par rapport à la direction longitudinale de l'ouverture de passage (20) dans l'intérieur de l'élément de verrouillage (26, 86) vers le clapet anti-retour (80) du côté de l'aspiration.
  6. Pompe à piston radial selon l'une des revendications précédentes, caractérisée en ce que l'élément de verrouillage (26, 86) présente un évidement en forme de pot (84) sur son côté tourné vers le piston (12), évidement recevant le clapet anti-retour (80) du côté de l'aspiration.
  7. Pompe à piston radial selon la revendication 1, caractérisée en ce que sur le côté ouvert de l'évidement (84) en forme de pot tourné vers le piston, on prévoit un appui pour un ressort (88) précontraignant le corps de soupape (82) dans la direction de fermeture.
  8. Pompe à piston radial selon la revendication 7, caractérisée en ce que l'appui est constitué par un élément de recouvrement (92) avec une ouverture traversante.
  9. Pompe à piston radial selon la revendication 8, caractérisée en ce que l'élément de recouvrement (92) est en forme de pot dans sa section et vient en prise au-dessus d'une section en forme de bride (94) de l'élément de verrouillage (86).
  10. Pompe à piston radial selon la revendication 8 ou 9, caractérisée en ce que l'élément de recouvrement (92) est maté en plusieurs points avec l'élément de verrouillage (86).
EP98941252A 1997-07-11 1998-06-30 Pompe a piston radial pour alimentation haute pression en carburant Expired - Lifetime EP0925446B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19729791 1997-07-11
DE19729791A DE19729791A1 (de) 1997-07-11 1997-07-11 Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
PCT/DE1998/001789 WO1999002858A1 (fr) 1997-07-11 1998-06-30 Pompe a piston radial pour alimentation haute pression en carburant

Publications (3)

Publication Number Publication Date
EP0925446A1 EP0925446A1 (fr) 1999-06-30
EP0925446B1 EP0925446B1 (fr) 2003-09-03
EP0925446B2 true EP0925446B2 (fr) 2010-10-20

Family

ID=7835426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941252A Expired - Lifetime EP0925446B2 (fr) 1997-07-11 1998-06-30 Pompe a piston radial pour alimentation haute pression en carburant

Country Status (5)

Country Link
US (1) US6224350B1 (fr)
EP (1) EP0925446B2 (fr)
JP (1) JP4053094B2 (fr)
DE (2) DE19729791A1 (fr)
WO (1) WO1999002858A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1310755B1 (it) * 1999-11-30 2002-02-22 Elasis Sistema Ricerca Fiat Pompa idraulica ad alta pressione, in particolare pompa a pistoniradiali per il carburante di un motore a combustione interna.
DE10057683B4 (de) * 2000-11-21 2005-10-06 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung
DE10117600C1 (de) * 2001-04-07 2002-08-22 Bosch Gmbh Robert Hochdruck-Kraftstoffpumpe für ein Kraftstoffsystem einer direkteinspritzenden Brennkraftmaschine, Kraftstoffsystem sowie Brennkraftmaschine
DE10147981A1 (de) * 2001-09-28 2003-04-24 Siemens Ag Verbindungselement zur Verbindung eines Kolbens mit einem Rückstellelement
ITTO20011039A1 (it) * 2001-10-30 2003-04-30 Ct Studi Componenti Per Veicol Valvola di aspirazione per una pompa ad alta pressione, in particolare per combustibile di un motore endotermico.
US7179060B2 (en) * 2002-12-09 2007-02-20 Caterpillar Inc Variable discharge pump with two pumping plungers and shared shuttle member
DE502004007338D1 (de) * 2003-05-22 2008-07-17 Bosch Gmbh Robert Rückschlagventil, insbesondere für eine Hochdruckpumpe einer Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
KR100892527B1 (ko) 2003-12-31 2009-04-10 현대자동차주식회사 차량용 브레이크시스템
DE102004028073B3 (de) 2004-06-09 2005-08-04 Siemens Ag Rückschlagventil
US7517200B2 (en) * 2004-06-24 2009-04-14 Caterpillar Inc. Variable discharge fuel pump
US7470117B2 (en) * 2004-11-30 2008-12-30 Caterpillar Inc. Variable discharge fuel pump
DE102005023323A1 (de) * 2005-05-20 2006-11-23 Siemens Ag Rückschlagventil
DE102005033634A1 (de) 2005-07-19 2007-01-25 Robert Bosch Gmbh Hochdruck-Kraftstoffpumpe für ein Kraftstoff-Einspritzsystem einer Brennkraftmaschine
DE102006017037B4 (de) * 2006-04-11 2015-09-17 Continental Automotive Gmbh Radialkolbenpumpe zur Kraftstoffhochdruckversorgung bei einer Brennkraftmaschine
AT504433B8 (de) * 2006-11-07 2008-09-15 Bosch Gmbh Robert Pumpenelement für eine common-rail-hochdruckpumpe
US8864478B2 (en) * 2007-06-04 2014-10-21 Caterpillar Inc. System and method for preloading a high stress area of a component
US7451741B1 (en) * 2007-10-31 2008-11-18 Caterpillar Inc. High-pressure pump
DE102008048450B4 (de) * 2008-09-23 2014-10-30 Continental Automotive Gmbh Saugventil für einen Zylinder der Kraftstoff-Hochdruckpumpe eines Common-Rail-Einspritzsystems
DE102010040459A1 (de) 2010-09-09 2012-03-15 Robert Bosch Gmbh Rückschlagventil, insbesondere für eine Kraftstoffhochdruckpumpe
DE102013220768A1 (de) 2013-10-15 2015-04-16 Continental Automotive Gmbh Ventilanordnung
EP3237747B1 (fr) * 2014-12-24 2020-02-26 Robert Bosch GmbH Unité de pompe pour fournir un carburant, de préférence un carburant diesel, à un moteur à combustion interne
US9856844B2 (en) 2015-04-28 2018-01-02 MAGNETI MARELLI S.p.A. Fuel pump for a direct injection system with a better hydraulic sealing of the intake valve
DE102015008520A1 (de) * 2015-06-30 2017-01-05 Armaturenfabrik Franz Schneider GmbH + Co. KG Absperrventil
EP3228864B1 (fr) * 2016-04-08 2018-08-01 J.P. Sauer & Sohn Maschinenbau GmbH Unite de soupape pour un compresseur a piston et compresseur a piston

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928375A1 (de) † 1989-08-28 1991-03-07 Teves Gmbh Alfred Kolbenpumpe
DE4204631A1 (de) † 1992-02-15 1992-10-15 Schaeffler Waelzlager Kg Radialkolbenpumpe
DE4241825A1 (de) † 1992-12-11 1994-06-16 Teves Gmbh Alfred Geräuschreduzierte Hochdruckpumpe, insbesondere für geregelte Bremsanlagen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US393980A (en) * 1888-12-04 Valve for air-compressors
US255400A (en) * 1882-03-21 Air-compressor
US990604A (en) * 1909-07-16 1911-04-25 Elbridge W Stevens Process and apparatus for scavenging internal-combustion engines.
US3084709A (en) * 1960-05-19 1963-04-09 Flick Reedy Corp Removable check unit
DE2623496A1 (de) * 1976-05-26 1977-12-15 Bosch Gmbh Robert Zuendspule fuer zuendanlagen von otto-motoren
DE3046753C2 (de) * 1980-12-12 1986-02-27 Mannesmann Rexroth GmbH, 8770 Lohr Hydrostatische Radialkolbenpumpe
DE3404520C2 (de) * 1984-02-09 1997-01-09 Uraca Pumpen Pumpe oder Hydraulikanlage
US4878815A (en) * 1988-05-18 1989-11-07 Stachowiak J Edward High pressure reciprocating pump apparatus
DE8916183U1 (de) * 1989-08-31 1994-09-22 J. Wagner Gmbh, 88048 Friedrichshafen Membranpumpe
US5358383A (en) * 1992-04-27 1994-10-25 Elasis Sistema Ricerca Fiat Nel Mezzogiorno Radial-piston pump for internal combustion engine fuel
DE4213798C2 (de) * 1992-04-27 2002-10-24 Bosch Gmbh Robert Radialkolbenpumpe, insbesondere Kraftstoffpumpe für Verbrennungsmotoren
DE4301521A1 (de) * 1993-01-21 1994-07-28 Bosch Gmbh Robert Druckventil
US5354183A (en) * 1993-02-11 1994-10-11 Elasis Sistema Ricerca Fiat Nel Mezzogiorno Societa Consortile Per Azioni Pumping device with a main pumping stage and a supply pump
JPH06323241A (ja) * 1993-05-14 1994-11-22 Sumitomo Electric Ind Ltd プランジャポンプ
DE4316986A1 (de) * 1993-05-21 1994-11-24 Teves Gmbh Alfred Kolbenpumpe
DE4324689A1 (de) * 1993-07-23 1995-01-26 Teves Gmbh Alfred Hydraulische Bremsanlage mit Bremsschlupf- und Antriebsschlupfregelung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928375A1 (de) † 1989-08-28 1991-03-07 Teves Gmbh Alfred Kolbenpumpe
DE4204631A1 (de) † 1992-02-15 1992-10-15 Schaeffler Waelzlager Kg Radialkolbenpumpe
DE4241825A1 (de) † 1992-12-11 1994-06-16 Teves Gmbh Alfred Geräuschreduzierte Hochdruckpumpe, insbesondere für geregelte Bremsanlagen

Also Published As

Publication number Publication date
WO1999002858A1 (fr) 1999-01-21
DE19729791A1 (de) 1999-01-14
DE59809483D1 (de) 2003-10-09
JP4053094B2 (ja) 2008-02-27
JP2001500220A (ja) 2001-01-09
EP0925446B1 (fr) 2003-09-03
US6224350B1 (en) 2001-05-01
EP0925446A1 (fr) 1999-06-30

Similar Documents

Publication Publication Date Title
EP0925446B2 (fr) Pompe a piston radial pour alimentation haute pression en carburant
EP1058783B1 (fr) Pompe a pistons radiaux pour l'alimentation haute pression en carburant
EP1931875B1 (fr) Pompe haute pression utilisee en particulier pour un dispositif d'injection du carburant d'un moteur a combustion interne,
DE19729790C2 (de) Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
EP1121531B1 (fr) Pompe a piston radial pour la production de haute pression de carburant
DE4107979A1 (de) Hydraulische hochdruckpumpe fuer kraftfahrzeug-bremsanlagen
DE112011105490T5 (de) Kraftstoffpumpe
DE102006027555A1 (de) Kolbenpumpe mit reduziertem Geräusch
DE19523283B4 (de) Pumpe, insbesondere Hochdruckpumpe für eine Kraftstoffeinspritzvorrichtung eines Verbrennungsmotors
EP0925445B1 (fr) Pompe a piston radial pour alimentation haute pression en carburant
EP1379784B1 (fr) Pompe d'injection a un piston pour systeme d'injection de carburant par accumulation de pression
DE19726572A1 (de) Radialkolbenpumpe
WO1999002860A1 (fr) Pompe a pistons radiaux pour l'alimentation haute pression en carburant
WO1998048169A1 (fr) Pompe a carburant haute pression
DE102006017037B4 (de) Radialkolbenpumpe zur Kraftstoffhochdruckversorgung bei einer Brennkraftmaschine
DE4227851A1 (de) Kraftstoffeinspritzpumpe für Brennkraftmaschinen
DE19801353A1 (de) Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
DE19959006C1 (de) Radialkolbenpumpe
DE102005023323A1 (de) Rückschlagventil
DE10028368A1 (de) Radialkolbenpumpe
DE102021208119A1 (de) Kraftstoff-Hochdruckpumpe
DE102019202594A1 (de) Druckpulsationsdämpfungsvorrichtung für den Zulaufbereich einer Pumpe und Pumpe mit Druckpulsationsdämpfungsvorrichtung
DE102022209219A1 (de) Kraftstoffpumpe
DE102013207749A1 (de) Kolbenpumpenventil für eine hydraulische Fahrzeugbremsanlage
DE102012221611A1 (de) Pumpe, insbesondere Kraftstoffhochdruckpumpe für eine Kraftstoffeinspritzeinrichtung

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19990721

17Q First examination report despatched

Effective date: 20020716

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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 GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59809483

Country of ref document: DE

Date of ref document: 20031009

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040107

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

ET Fr: translation filed
PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: SIEMENS AGCT IP SV

Effective date: 20040517

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

R26 Opposition filed (corrected)

Opponent name: SIEMENS AGCT IP SV

Effective date: 20040517

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SIEMENS AG CT IP SV

Effective date: 20040517

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20101020

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE FR GB

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

Ref country code: GB

Payment date: 20130620

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: 20130703

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20140808

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150227

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

Ref country code: FR

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

Effective date: 20140630

Ref country code: GB

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

Effective date: 20140630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59809483

Country of ref document: DE

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: 20160101