EP1141539B1 - Pompe a piston pour carburant sous haute pression - Google Patents

Pompe a piston pour carburant sous haute pression Download PDF

Info

Publication number
EP1141539B1
EP1141539B1 EP99963253A EP99963253A EP1141539B1 EP 1141539 B1 EP1141539 B1 EP 1141539B1 EP 99963253 A EP99963253 A EP 99963253A EP 99963253 A EP99963253 A EP 99963253A EP 1141539 B1 EP1141539 B1 EP 1141539B1
Authority
EP
European Patent Office
Prior art keywords
pump
return valve
valve
fuel
closing member
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
EP99963253A
Other languages
German (de)
English (en)
Other versions
EP1141539A1 (fr
Inventor
Josef Guentert
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 EP1141539A1 publication Critical patent/EP1141539A1/fr
Application granted granted Critical
Publication of EP1141539B1 publication Critical patent/EP1141539B1/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
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/043—Arrangements for driving reciprocating piston-type pumps
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/005—Arrangements of fuel feed-pumps with respect to fuel injection apparatus
    • 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
    • F04B53/1002—Ball valves
    • F04B53/1005—Ball valves being formed by two closure members working in series

Definitions

  • the invention is based on a piston pump according to the Genus of claim 1.
  • the piston pump according to the invention with the features of Patent claim 1 has the advantage that the Partial filling of the respective pump element is no longer in the essential of the interaction of the delivery pressure of Feed pump, the spring force of the first check valve and depends on the vacuum generated by the pump piston, but the duration of the filling of the pump element of the im essentially loaded only by delivery pressure and spring force second check valve is determined which at low flow rate of the fuel supplied also the Filling limited while the first check valve in the printing phase of the conveying process only substantially serving to the cylinder space of the pump element against the shut off the second check valve. Of the Fuel metering is thus no longer of the Opening duration of the first check valve determined. beginning and end of the metering process according to the invention from Delivery pressure of the fuel introduced and limited.
  • FIG. 1 shows a Hydraulic circuit diagram of part of a Fuel injection system with a piston pump for High-pressure fuel supply system and Figure 2 a Section through a pump element of the piston pump.
  • the hydraulic circuit diagram shown in Figure 1 shows a Pump arrangement for high-pressure fuel production for a in Internal combustion engine used fuel injection system, in particular common-rail injection system.
  • the Pump arrangement has a low-pressure feed pump 1, which on the suction side, for example, a diesel fuel containing fuel tank 2 is connected. Of the Feed pump 1 is on the pressure side, a delivery line 3, in which a flow control valve 4 is arranged.
  • the pump assembly also includes a high pressure piston pump 6 with three pump elements 7 on which, respectively a pump piston 8 in a cylinder chamber 9, a suction side first and second check valves 10 and 11 as well pressure side comprise a pressure valve 12.
  • the under one Angular distance of 120 ° arranged pump piston 8 are supported by spring force on a cam ring 13, which of an eccentric shaft 14 is driven.
  • the delivery line 3 is after the flow control valve. 4 branches and in each case to the second check valve 11 of the Pump elements 7 connected.
  • the two against spring force in the direction of the cylinder chamber 9 opening check valves 10 and 11 are arranged in series, with the first Check valve 10 close to the cylinder in the respective Delivery line branch lies.
  • From the pressure valves 12 of the Pump elements 7 go line branches one High-pressure fuel line 15 off, which is not one illustrated high - pressure fuel storage of the Fuel injection system leads.
  • the low-pressure feed pump 1 and the high-pressure piston pump 6 are constant pumps.
  • In the simplified hydraulic circuit diagram of Figure 1 are no belonging to the pump assembly pressure control and limit valves, return lines and fuel filters shown.
  • a pump piston 8 in one Cylinder space 9 of a housing 17.
  • To the cylinder chamber 9 is connected to the pressure valve 12 of the pump element 7.
  • Of the Cylinder space 9 is characterized by an annular disc-shaped Valve plate 18 completed. This one is through Housing member 19 in the form of a in the housing 17th held down screwed screw plug.
  • the Housing member 19 engages with a sealing edge 20 on the cylinder side facing away from the valve plate 18 and is circumferentially with a sealing ring 21 relative to the housing 17 sealed.
  • the valve plate 18 is circumferentially of an annular space 22 surrounded, in which a line branch of the Delivery line 3 opens.
  • the valve plate 18 is a coaxial with the Cylinder chamber 9 extending, stepped through hole 24 provided. Coaxial to the through hole 24 is in the housing member 19, a blind hole 25 is formed.
  • the valve plate 18 is also provided with a radial running stitch channel 26 provided, which is located between the circumferential annular space 22 of the housing 10 and the stepped through bore 24 extends.
  • the stitch channel 26 opens into a bore section 27 of the Through hole 24, between a cylinder space side annular collar 28 and a facing away from the cylinder space bore section 29 of Valve plate 18 is located.
  • Cylinder space side is on the annular collar 28 of the valve plate 18th a hollow cone-shaped valve seat 31 of the first Check valve 10 is formed.
  • This one has plate-shaped closing member 32, which against the Valve seat 31 is conically limited. Because of each other Deviating cone angle touch closure member 32 and Valve seat 31 along an edge whose diameter at the same time the clear diameter of the annular collar 28 is. Notwithstanding the embodiment, the closing member 32nd also only be disc-shaped and with a flat valve seat 31 cooperate with the valve plate 18.
  • the Closing member 32 is a shaft 33, which the Through hole 24 of the valve plate 18 at a distance penetrates and in the blind hole 25 of the Casing component 20 ends.
  • a hollow cone-shaped valve seat 35 of the second Check valve 11 is formed.
  • Taper angle agrees the sealing diameter of the second Check valve 11 with the clear diameter of the Ringbund 28 coincide.
  • the sleeve-shaped closing member 36 of second check valve 11 is remote in the cylinder space Bore portion 29 of the valve plate 18 largely pressure-tight and extends into the blind hole 25 of the housing member 19.
  • the sleeve-shaped closing member 36 includes with his bottom 37, the shaft 33 of the closing member 32 with radial play.
  • a prestressed Compressed spring 39 received, which on the one hand to the cylinder side facing away from the sleeve bottom 37 and on the other hand to a stop 40 on the closing member shaft attacks.
  • the two compression springs 38 and 39 practice one each Closing force on the associated check valve 10 and 11 respectively out.

Landscapes

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

Claims (5)

  1. Pompe à piston (6) comportant plusieurs éléments de pompe (7) pour assurer une alimentation en carburant à haute pression dans des systèmes d'injection de carburant de moteur thermique notamment de systèmes d'injection à rampe commune dans lequel :
    les éléments de pompe (7) sont raccordés du côté aspiration à une pompe de transfert (1) fournissant du carburant basse pression régulé en débit,
    chaque élément de pompe (7) est relié en sortie à un premier clapet antiretour (10) qui commande l'alimentation en carburant dans une chambre (9) de cylindre de l'élément de pompe (7) comportant un piston de pompe (8),
    le premier clapet antiretour (10) s'ouvre contre la force de ressort en phase d'aspiration de l'élément de pompe (7) et se ferme en phase de refoulement,
    caractérisée en ce que
    le premier clapet antiretour (10) est muni en amont du côté de l'alimentation d'un second clapet antiretour (11),
    le second clapet antiretour (11) s'ouvre contre la force d'un ressort et se ferme assisté par la force d'un ressort pour des pressions du carburant fourni par la pompe d'alimentation (1), supérieures à la dépression générée dans le cylindre (9) de l'élément de pompe (7).
  2. Pompe à piston selon la revendication 1,
    caractérisée en ce qu'
    elle comporte une plaque de soupape (18) adjacente à la chambre de cylindre (9),
    cette plaque de soupape (19) comporte un perçage traversant (24) étagé,
    une collerette annulaire (28) du perçage traversant (24) comporte du côté de la chambre de cylindre, un premier siège de soupape (31) pour recevoir un premier organe de fermeture (32) du premier clapet antiretour (10) et du côté opposé à la chambre du cylindre, un second siège de soupape (35) pour recevoir un organe de fermeture (36) du second clapet antiretour (11), et
    dans la plaque de soupape (18), du côté non tourné vers la chambre du cylindre, l'organe d'obturation (36) du second clapet antiretour (11) est guidé en coulissement longitudinal d'une manière très largement étanche à la pression dans le perçage traversant (24),
    le diamètre du segment de perçage de guidage (29) étant supérieur au diamètre d'étanchéité du siège de soupape (35) correspondant,
    le carburant est débité par la pompe de transfert (1) dans un segment de perçage (27) du perçage traversant (24) situé entre le siège de soupape (35) du second clapet antiretour (11) et le segment de perçage de guidage (29).
  3. Pompe à piston selon la revendication 2,
    caractérisée en ce que
    l'organe d'obturation (36) du second clapet antiretour (11) a la forme d'un manchon dont le fond (37) coopérant avec le siège de soupape (35) est traversé avec du jeu de manière coaxiale par la tige (33) de l'organe d'obturation (32) du premier clapet antiretour (10).
  4. Pompe à piston selon la revendication 3,
    caractérisée en ce que
    l'organe d'obturation (36) du second clapet antiretour (11) est sollicité du côté non tourné vers la chambre du cylindre par un ressort de pression (38) précontraint s'appuyant contre la partie (19) du boítier de l'élément de pompe (7).
  5. Pompe à piston selon la revendication 3,
    caractérisée en ce que
    la tige (33) de l'organe d'obturation (32) du premier clapet antiretour (10) porte un ressort de compression (39) précontraint agissant par un côté contre le côté non tourné vers la chambre du cylindre du fond de manchon (37) du second clapet antiretour (11) à l'opposé de la chambre de cylindre et de l'autre côté contre une butée (40) de la tige (33) de l'organe d'obturation.
EP99963253A 1998-12-29 1999-11-16 Pompe a piston pour carburant sous haute pression Expired - Lifetime EP1141539B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19860672 1998-12-29
DE19860672A DE19860672A1 (de) 1998-12-29 1998-12-29 Kolbenpumpe zur Kraftstoffhochdruckerzeugung
PCT/DE1999/003643 WO2000039450A1 (fr) 1998-12-29 1999-11-16 Pompe a piston pour carburant sous haute pression

Publications (2)

Publication Number Publication Date
EP1141539A1 EP1141539A1 (fr) 2001-10-10
EP1141539B1 true EP1141539B1 (fr) 2005-02-23

Family

ID=7893086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99963253A Expired - Lifetime EP1141539B1 (fr) 1998-12-29 1999-11-16 Pompe a piston pour carburant sous haute pression

Country Status (5)

Country Link
US (1) US6568927B1 (fr)
EP (1) EP1141539B1 (fr)
JP (1) JP2002533612A (fr)
DE (2) DE19860672A1 (fr)
WO (1) WO2000039450A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10139054C1 (de) * 2001-08-08 2003-01-30 Bosch Gmbh Robert Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine, insbesondere mit Direkteinspritzung
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.
DE10229396A1 (de) * 2002-06-29 2004-01-22 Robert Bosch Gmbh Radialkolbenpumpe zur Kraftstoffhochdruckversorgung bei Einspritzsystemen von Brennkraftmaschinen mit verbessertem Wirkungsgrad
DE10247564A1 (de) * 2002-10-11 2004-04-22 Robert Bosch Gmbh Verfahren zum Betreiben eines Common-Rail-Kraftstoffeinspritzsystems für Brennkraftmaschinen
JP2007501913A (ja) 2004-02-11 2007-02-01 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 特に内燃機関の燃料噴射装置に用いられる高圧ポンプ
ATE355457T1 (de) * 2004-11-12 2006-03-15 Fiat Ricerche Hochdruckpumpe mit einer einrichtung zum steuern des durchflusses für ein brennstoffeinspritzsystem
US20060255657A1 (en) * 2005-05-13 2006-11-16 De Ojeda William High pressure fluid system inlet throttle and method
DE102005023323A1 (de) * 2005-05-20 2006-11-23 Siemens Ag Rückschlagventil
DE102005057301A1 (de) * 2005-12-01 2007-06-14 Robert Bosch Gmbh Bremsanlage für ein Fahrzeug
DE102006017036A1 (de) 2006-04-11 2007-10-18 Siemens Ag Radialkolbenpumpe zur Kraftstoff-Hochdruckversorgung bei einer Brennkraftmaschine
EP1865193B1 (fr) * 2006-06-09 2010-11-03 C.R.F. Società Consortile per Azioni Dispositif d'injection de carburant pour un moteur à combustion interne
DE102007004605B4 (de) * 2007-01-30 2009-08-13 Continental Automotive Gmbh Hochdruckpumpe und Einspritzanlage für eine Brennkraftmaschine mit einer Hochdruckpumpe
US20090139494A1 (en) * 2007-12-04 2009-06-04 Denso International America, Inc. Dual piston direct injection fuel pump
GB0812888D0 (en) 2008-07-15 2008-08-20 Delphi Tech Inc Improvements relating to fuel pumps
KR100992227B1 (ko) * 2008-10-27 2010-11-05 현대중공업 주식회사 디젤엔진 연료분사펌프의 캐비테이션 손상방지장치
JP5256458B2 (ja) * 2010-09-21 2013-08-07 Ｎｓｓｌ株式会社 高粘度材料の循環ろ過分離方法、並びに、これを用いた循環ろ過分離装置
US10288023B2 (en) * 2014-12-24 2019-05-14 Robert Bosch Gmbh Pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine
DE102016200232A1 (de) * 2016-01-12 2017-07-13 Continental Automotive Gmbh Kraftstoffeinspritzsystem

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB564725A (en) * 1943-07-01 1944-10-10 Robert Pettigrew Finlay Improvements in or relating to reciprocating ram pumps
DE3144361A1 (de) * 1981-11-07 1983-05-19 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen
GB2184793B (en) * 1984-07-03 1989-05-24 Barrack Technology Ltd Liquid pump
DE3741638C1 (de) * 1987-12-09 1988-12-01 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer Brennkraftmaschinen,insbesondere Dieselbrennkraftmaschinen
DE4135595A1 (de) * 1991-10-29 1993-05-06 Robert Bosch Gmbh, 7000 Stuttgart, De Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
DE4213798C2 (de) 1992-04-27 2002-10-24 Bosch Gmbh Robert Radialkolbenpumpe, insbesondere Kraftstoffpumpe für Verbrennungsmotoren
JPH074332A (ja) * 1993-06-18 1995-01-10 Yamaha Motor Co Ltd 内燃機関用高圧燃料ポンプ
US6257499B1 (en) * 1994-06-06 2001-07-10 Oded E. Sturman High speed fuel injector
DE19549108A1 (de) * 1995-12-29 1997-07-03 Bosch Gmbh Robert System zur Kraftstoffhochdruckerzeugung für ein in Brennkraftmaschinen eingesetztes Kraftstoffeinspritzsystem
DE69720603T2 (de) * 1996-07-05 2004-03-04 Nippon Soken, Inc., Nishio Hochdruckpumpe
DE19644915A1 (de) * 1996-10-29 1998-04-30 Bosch Gmbh Robert Hochdruckpumpe
DE19729790C2 (de) * 1997-07-11 2002-08-29 Bosch Gmbh Robert Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
DE19744577A1 (de) * 1997-10-09 1999-04-22 Bosch Gmbh Robert Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
DE19802475A1 (de) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Radialkolbenpumpe zur Kraftstoffhochdruckerzeugung
DE19834120A1 (de) * 1998-07-29 2000-02-03 Bosch Gmbh Robert Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE19848040A1 (de) * 1998-10-17 2000-04-20 Bosch Gmbh Robert Kolbenpumpe zur Kraftstoffhochdruckversorgung

Also Published As

Publication number Publication date
US6568927B1 (en) 2003-05-27
DE19860672A1 (de) 2000-07-13
JP2002533612A (ja) 2002-10-08
DE59911667D1 (de) 2005-03-31
WO2000039450A8 (fr) 2000-08-17
WO2000039450A1 (fr) 2000-07-06
EP1141539A1 (fr) 2001-10-10

Similar Documents

Publication Publication Date Title
EP1141539B1 (fr) Pompe a piston pour carburant sous haute pression
DE4401074B4 (de) Pumpenanordnung, insbesondere zur Förderung von Kraftstoff aus einem Vorratsbehälter zu einer Brennkraftmaschine
DE102008045730B4 (de) Rücklauffreie Kraftstoffpumpeneinheit sowie damit ausgerüstetes Fahrzeug
EP0801710B1 (fr) Dispositif d'injection de carburant pour moteurs a combustion interne
EP1119704B1 (fr) Ensemble pompe pour la production d'une haute pression de carburant
EP1073840A1 (fr) Soupape supplementaire d'un systeme d'injection du carburant d'un moteur a combustion interne
DE10118884A1 (de) Hochdruck-Kraftstoffpumpe für ein Kraftstoffsystem einer direkteinspritzenden Brennkraftmaschine, Kraftstoffsystem sowie Brennkraftmaschine
EP1251266B1 (fr) Dispositif de limitation de pression et système de combustible avec tel dispositif de limitation de pression
EP1357283B1 (fr) Dispositif d'injection de carburant pour un moteur à combustion interne
DE102009027644A1 (de) Kraftstoffeinspritzsystem
DE10117600C1 (de) Hochdruck-Kraftstoffpumpe für ein Kraftstoffsystem einer direkteinspritzenden Brennkraftmaschine, Kraftstoffsystem sowie Brennkraftmaschine
EP1045975B1 (fr) Unite servant a commander l'etablissement de la pression dans une unite de pompage
EP1117921B1 (fr) Injecteur de carburant pour un système carburant à rampe commune
DE10139055A1 (de) Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine
WO2015090961A1 (fr) Dispositif d'alimentation en carburant d'un système d'injection de carburant d'un moteur à combustion interne, ainsi que soupape de décharge associée
EP1361357A2 (fr) Pompe à carburant notamment pour un moteur à combustion interne et à injection directe
EP1759115B1 (fr) Pompe a haute pression pour un dispositif d'injection de carburant d'un moteur a combustion interne
DE4425339C2 (de) Einspritzsystem
EP1911966A2 (fr) Injecteur de carburant pour un moteur à combustion interne
DE10160490B4 (de) Kraftstoff-Einspritzvorrichtung, Kraftstoffsystem sowie Brennkraftmaschine
DE102008041393A1 (de) Kraftstoffsystem für eine Brennkraftmaschine
EP1284360B1 (fr) Dispositif d'injection de carburant pour moteur à combustion interne
EP1383999B1 (fr) Dispositif d'injection de carburant pour moteur a combustion
EP1606511B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne
DE3914582A1 (de) Brennstoffeinspritzvorrichtung

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: 20010730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

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 GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59911667

Country of ref document: DE

Date of ref document: 20050331

Kind code of ref document: P

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

Effective date: 20050525

ET Fr: translation filed
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: 20051124

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

Ref country code: FR

Payment date: 20081118

Year of fee payment: 10

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

Ref country code: GB

Payment date: 20081121

Year of fee payment: 10

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

Effective date: 20091116

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100730

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: 20091130

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

Ref country code: GB

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

Effective date: 20091116

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

Ref country code: DE

Payment date: 20130124

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59911667

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: 20140603

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59911667

Country of ref document: DE

Effective date: 20140603