EP0831232B1 - Pompe à engrenages - Google Patents

Pompe à engrenages Download PDF

Info

Publication number
EP0831232B1
EP0831232B1 EP97114968A EP97114968A EP0831232B1 EP 0831232 B1 EP0831232 B1 EP 0831232B1 EP 97114968 A EP97114968 A EP 97114968A EP 97114968 A EP97114968 A EP 97114968A EP 0831232 B1 EP0831232 B1 EP 0831232B1
Authority
EP
European Patent Office
Prior art keywords
housing
drive shaft
feed pump
gearwheel
wall
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
EP97114968A
Other languages
German (de)
English (en)
Other versions
EP0831232A2 (fr
EP0831232A3 (fr
Inventor
Stanislaw Dr. Bodzak
Hanspeter Mayer
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 EP0831232A2 publication Critical patent/EP0831232A2/fr
Publication of EP0831232A3 publication Critical patent/EP0831232A3/fr
Application granted granted Critical
Publication of EP0831232B1 publication Critical patent/EP0831232B1/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter

Definitions

  • the invention relates to a feed pump according to the genus of Claim 1.
  • Such a feed pump is known from FR-A-1 299 342.
  • This Feed pump has a rotatingly driven in a pump chamber Pair of intermeshing gears on which a pumped medium an intake space connected to a storage tank along one between the end face of the gears and the peripheral wall of the Promote pumping chamber formed delivery channel in a pressure chamber.
  • the Gears are each in one piece protruding into the housing mounted with the housing trained housing pin.
  • a first one Housing pin has an axial through hole into which a drive shaft protrudes.
  • the drive shaft protrudes from hers end of the housing out of the housing pin and is by means of a coupling member in the form of a wedge with a first on the first housing pin mounted gear rotatably connected.
  • the Drive shaft can be positively connected via the wedge connection be connected to the first gear. Since the first gear on the first housing pin is mounted and by its connection with the drive shaft the torque is transmitted directly to it can have problems with the storage and drive of the first Gear due to manufacturing tolerances.
  • the feed pump according to the invention with the features according to claim 1 has the advantage that the transmission of the torque from the drive shaft to the first gear through that as Coupling disc trained coupling member takes one Compensation of manufacturing tolerances enabled.
  • the coupling member pressed into the gear preferably has a central recess into which a correspondingly shaped, axially protruding from the drive shaft shaped pin engages.
  • the coupling member pressed onto the drive shaft preferably has three radially projecting projections (pegs) on the circumference, which engage in corresponding recesses in the internal gear diameter with little play.
  • flats or recesses for example in the form of a round groove, are provided on the housing bearing journal, in which the lubricant (preferably fuel) can collect and then get into the plain bearing more easily, these flattenings preferably on the side of the housing journal remote from the pressure (suction side) are arranged.
  • a radial bore in the gear wheel which opens into the inner wall surface from the tooth base between two teeth, also improves the penetration of the lubricant into the slide bearing, since the bore passes through the pressure zone (pressure chamber) with each gear wheel rotation, so that the lubricant is actively pressed into the slide bearing becomes.
  • the feed pump according to the invention as a fuel feed pump for delivering fuel from a storage tank to a fuel injection pump of an internal combustion engine is particularly suitable, but can also be used for delivering other liquid media. Further advantages and advantageous embodiments of the subject matter of the invention can be found in the description, the drawing and the claims.
  • FIG. 1 shows a view of the closed cover side of the feed pump with the representation of the position of the gears and the inlet and outlet openings
  • FIG. 2 shows a sectional view of the first embodiment of the feed pump rotated by 90 ° with respect to FIG. 1, in which the coupling member is pressed onto the drive shaft
  • Figure 3 is a partial view of the first gear from Figure 2 in a first view
  • Figure 4 shows the gear of Figure 3 in a second sectional view
  • Figure 5 is a partial view of the coupling member from Figure 2
  • the 6 shows a second embodiment of the feed pump, in which the coupling member is pressed into the inner wall of the gearwheel
  • FIG. 1 shows a view of the closed cover side of the feed pump with the representation of the position of the gears and the inlet and outlet openings
  • FIG. 2 shows a sectional view of the first embodiment of the feed pump rotated by 90 ° with respect to FIG. 1, in which the coupling member is pressed onto the drive shaft
  • Figure 3 is a partial view of
  • FIG. 7 shows an individual part of the coupling member from FIG. 6, and FIG. 8 shows an enlarged detail from the gearwheels of FIGS. 2 and 6, showing the radial bore
  • FIG. 9 shows a third embodiment in a simplified manner Eighth sectional view in the area of the connection gearwheel / housing bearing journal, in which a bevel is provided on the housing journal
  • FIG. 10 shows a fourth exemplary embodiment analogous to the illustration in FIG. 9, in which a round groove is incorporated in the housing journal.
  • the feed pump according to the invention shown in FIGS. 1 to 10 in various sections and views is inserted into a feed line (not shown) from a storage tank to a fuel injection pump for internal combustion engines.
  • the first exemplary embodiment of the feed pump shown in FIGS. 1 and 2 has a pump chamber 3 in its housing 1, in which a rotatingly driven pair of meshing gears is arranged.
  • a first gearwheel 5, which is located in the exemplary embodiment, is rotatably driven by means of an external drive element 7 (not shown in more detail) and transmits this rotary movement via a spur toothing to a second gearwheel 9 meshing with the first gearwheel 5.
  • the gearwheels 5, 9 thereby divide the pump chamber 3 their tooth engagement in two sections, of which a first section forms an intake chamber 11 and a second section forms a pressure chamber 13.
  • the suction chamber 11 is connected to the pressure chamber 13 via a delivery channel 15 formed between the tooth grooves on the end faces of the first and second gear wheels 5, 9 and the upper and lower peripheral wall of the pump chamber 3.
  • the suction chamber 11 and the pressure chamber 13 each have a connection opening in the wall of the pump housing 1, via which the suction chamber 11 is connected to a suction line, not shown, from the storage tank and the pressure chamber 13 to a delivery line, also not shown, to the suction chamber of the fuel injection pump.
  • connection opening in the suction chamber 11 forms an inlet opening 17 and the connection opening in the pressure chamber 13 forms an outlet opening 19, which are arranged in a housing cover 21 which closes the pump chamber 3.
  • the gear wheels 5, 9 are mounted on housing pins which project into the interior of the pump housing 1 and which are formed in one piece with the pump housing 1.
  • a first housing pin 23 located at the bottom forms a bearing pin receiving the first gear wheel 5
  • a second housing pin 25 located at the top forms a bearing pin receiving the second gear wheel 9.
  • the first housing pin 23 has an axial through bore 27, in which a drive shaft 29 is guided, which is connected in a rotationally locking manner to the drive element 7 at its end facing away from the housing cover 21.
  • the drive shaft 29 protrudes from the bore 27 of the first housing pin 23 into a coupling member 31 to the first gear 5, via which the rotary movement of the drive shaft 29 is transmitted to the gear 5.
  • 5 in the first exemplary embodiment is designed as a clutch disc 31, which is pressed onto the drive shaft 29 with its radial inner wall and which preferably has three radially projecting projections 33 on its outer circumference. With these formations 33, the clutch disc protrudes into corresponding recesses 35 on the inner wall surface of the first gearwheel 5 shown enlarged in FIGS. 3 and 4 and thus establishes a positive connection between the clutch disc 31 and the first gearwheel 5.
  • the clutch disc 231 shown enlarged in FIG. 7, is now pressed with its outer circumferential wall into the inner wall diameter of the first gear 5 at its end on the cover side.
  • the clutch disc 231 consists of a metal, preferably steel ring 41, in the interior of which a disk-shaped elastomer part 37 is pressed.
  • a preferably square-shaped recess 39 is incorporated, into which a correspondingly shaped pin 43 protrudes axially from the drive shaft 29 and thus establishes a positive connection between the clutch disc 231 and the drive shaft 29.
  • a radial bore 51 is provided in both gear wheels 5, 9, which starts from the tooth base 53 extends between two adjacent teeth of the gear wheels 5, 9 to the inner end wall 55 of the gear wheels 5, 9 and thus supplies the slide bearing points 57 with lubricant.
  • a flattening 61 is also provided on the housing pin 25 in the third exemplary embodiment shown in a detail in FIG. 9, which is arranged on the side of the housing pin 25 facing away from the pressure chamber 13 of the feed pump and in that can collect the lubricant.
  • FIG. 10 shows a fourth exemplary embodiment analogous to FIG. 9, in which, instead of the flat 61, a round-groove-shaped recess 63 is arranged on the side of the housing bearing journal 25 facing away from the pressure chamber, in which the lubricant can collect.
  • the first housing pin 23, which is designed as a hollow axis, likewise has a flattened portion 61 or recess 63 on its suction chamber side 11, in a manner not shown, analogous to FIGS. 9 and 10.
  • the feed pump according to the invention works in the following way.
  • the drive shaft 29 is preferably driven to rotate in proportion to the speed of an internal combustion engine to be supplied.
  • the drive shaft 29 transmits the rotary movement via the coupling member 31, (clutch disc 231) to the first gear 5, which in turn drives the second gear 9 meshing with it.
  • the delivery medium preferably fuel
  • the intake chamber 11 is conveyed from the intake chamber 11 along the delivery channels 15 into the pressure chamber 13. This creates a negative pressure in the intake chamber 11, which is sufficient to draw in additional fuel from the storage tank via the intake line.
  • the fuel pressure built up in the pressure chamber 13 causes fuel to be delivered via the outlet opening 19 into the delivery line to the fuel injection pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (7)

  1. Pompe de transfert comportant une paire de roues dentées (5, 9) engrenant, entraínées en rotation dans une chambre de pompe (3), pour débiter un fluide d'une chambre d'aspiration (11) reliée à un réservoir, dans un canal de transfert (15) formé entre la surface frontale des deux roues dentées (5, 9) et la paroi périphérique de la chambre (3),
    les roues dentées (5, 9) étant montées chacune sur un tourillon de boítier (23, 25) venant en saillie dans le boítier (1) de la pompe de transfert, ce tourillon étant réalisé en une seule pièce avec le boítier (1),
    un premier tourillon de boítier (23) ayant un perçage axial traversant (27) dans lequel pénètre un arbre d'entraínement (29),
    l'arbre d'entraínement (29) sortant du tourillon de boítier (23) par son côté intérieur au boítier est relié par un élément de couplage, solidairement en rotation à une première roue dentée (5) montée sur le premier tourillon de palier (23),
    l'arbre d'entraínement (29) étant relié par une liaison par la forme par l'intermédiaire d'un élément de couplage à la première roue dentée (5),
    caractérisée en ce que
    l'élément de couplage est réalisé sous la forme d'un disque d'embrayage (31, 231) pressé sur l'arbre d'entraínement (29) ou dans la paroi intérieure de la première roue dentée (5) et relié par la forme à l'autre partie de la première roue dentée (5) ou de l'arbre d'entraínement (29).
  2. Pompe de transfert selon la revendication 1,
    caractérisée en ce que
    le disque d'embrayage (31) est pressé par sa surface de paroi intérieure sur l'arbre d'entraínement (29) et sa surface périphérique extérieure comporte plusieurs, de préférence trois, pattes (33) venant radialement en saillie, qui pénètrent dans les cavités correspondantes (35) de la surface intérieure de la première roue dentée (5).
  3. Pompe de transfert selon la revendication 1,
    caractérisée en ce que
    le disque d'embrayage (231), pressé avec sa paroi périphérique dans la paroi intérieure de la première roue dentée (5), comporte une cavité (39) en forme de fente dans sa paroi frontale (37), cavité dans laquelle pénètre un tourillon fermé (43), de forme appropriée, venant axialement en saillie par rapport à l'arbre d'entraínement (29).
  4. Pompe de transfert selon la revendication 3,
    caractérisée en ce que
    le disque (37) de la paroi frontale comportant la cavité en forme de fente (39) est en une matière élastique placée dans une bague métallique (41) pressée dans la première roue dentée (5).
  5. Pompe de transfert selon la revendication 1,
    caractérisée en ce que
    les roues dentées (5, 9) ont un perçage radial (51) qui débouche à partir du pied (53) des dents entre chaque fois deux dents voisines dans la paroi (55) du diamètre intérieur.
  6. Pompe de transfert selon la revendication 1,
    caractérisée en ce que
    les tourillons de boítier (23, 25) ont des parties aplaties (61) ou des cavités (63) dans leurs parois périphériques.
  7. Pompe de transfert selon la revendication 6,
    caractérisée en ce que
    les surfaces aplaties (61) ou cavités (63) sont prévues sur le côté de la chambre de pression (13) à l'opposé des tourillons de palier (23, 25).
EP97114968A 1996-09-19 1997-08-29 Pompe à engrenages Expired - Lifetime EP0831232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19638332A DE19638332C2 (de) 1996-09-19 1996-09-19 Förderpumpe
DE19638332 1996-09-19

Publications (3)

Publication Number Publication Date
EP0831232A2 EP0831232A2 (fr) 1998-03-25
EP0831232A3 EP0831232A3 (fr) 1999-03-03
EP0831232B1 true EP0831232B1 (fr) 2003-03-05

Family

ID=7806189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114968A Expired - Lifetime EP0831232B1 (fr) 1996-09-19 1997-08-29 Pompe à engrenages

Country Status (3)

Country Link
US (1) US6071105A (fr)
EP (1) EP0831232B1 (fr)
DE (2) DE19638332C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4428370A1 (fr) * 2023-03-08 2024-09-11 Valeo Embrayages Pompe à engrenages

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940730A1 (de) 1999-08-27 2001-03-01 Johann Sagawe Außenzahnradpumpe
DE10014548A1 (de) * 2000-03-23 2001-09-27 Bosch Gmbh Robert Zahnradförderpumpe
DE10024884A1 (de) 2000-05-19 2001-11-22 Bosch Gmbh Robert Zahnradförderpumpe
DE10059422A1 (de) * 2000-11-30 2002-06-06 Bosch Gmbh Robert Vorrichtung zum Fördern von Flüssigkeiten, insbesondere Kraftstoff
DE10059423A1 (de) 2000-11-30 2002-06-13 Bosch Gmbh Robert Vorrichtung zum Fördern von Flüssigkeiten, insbesondere Kraftstoff
RU2269030C2 (ru) * 2001-03-27 2006-01-27 Роберт Бош Гмбх Шестеренный подающий насос
DE10134622B4 (de) * 2001-07-17 2018-09-13 Robert Bosch Gmbh Zahnradpumpe, insbesondere zum Fördern von Kraftstoff aus einem Kraftstoffvorratsbehälter zu einer Kraftstoffhochdruckpumpe
DE102006023380A1 (de) * 2006-05-17 2007-11-22 Ims Gear Gmbh Planetenrad mit radialer Durchgangsbohrung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29811438U1 (de) * 1998-06-26 1998-10-01 USD Formteiltechnik GmbH, 58540 Meinerzhagen Rotor für eine Exzenterschneckenpumpe
DE19942221A1 (de) * 1999-09-03 2001-03-15 Luk Fahrzeug Hydraulik Einrichtung zur Förderung eines gasförmigen oder flüssigen Mediums

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE589418C (de) * 1933-12-08 Johannes Lambeck Zahnraederpumpe, insbesondere zur Foerderung von Celluloseloesungen
US2417084A (en) * 1943-05-27 1947-03-11 Monroe Benjamin Cullen Steam locomotive
CH238205A (de) * 1943-08-09 1945-06-30 Egersdoerfer Fritz Doppel- oder Mehrfachzahnradpumpe.
US2672823A (en) * 1948-01-12 1954-03-23 Waterous Co Rotary pump
US3043497A (en) * 1959-12-29 1962-07-10 Gabbioneta Roberto Means for the support of the rotor in liquid ring rotary pumps
DE1821554U (de) * 1960-07-07 1960-11-10 Harry Thalheim Von einem motor angetriebene zahnradpumpe fuer kleine leistungen.
FR1299342A (fr) * 1961-09-04 1962-07-20 Coy Mfg Company Pompe à engrenage
US3105446A (en) * 1961-09-05 1963-10-01 Sr Oscar C Blomgren Gear pump assembly
GB1108648A (en) * 1965-12-01 1968-04-03 Firth Cleveland Fastenings Ltd Means for connecting a rotatable member to a shaft
US4153400A (en) * 1976-07-16 1979-05-08 Nakamura Kinzoku Kogyosho, Inc. Rotary pumps circulating pumped fluid to seal
DE3033755A1 (de) * 1980-09-08 1982-04-22 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-foerderaggregat
US4392798A (en) * 1981-04-03 1983-07-12 General Signal Corporation Gear pump or motor with low pressure bearing lubrication
DE8315309U1 (de) * 1983-05-25 1984-10-31 Robert Bosch Gmbh, 7000 Stuttgart Zahnradpumpe
US4902202A (en) * 1987-07-29 1990-02-20 Hydreco, Inc. Variable discharge gear pump with energy recovery
US5391068A (en) * 1994-02-15 1995-02-21 Eaton Corporation Gear pump
DE4441505A1 (de) * 1994-11-22 1996-05-23 Bosch Gmbh Robert Kraftstoff-Förderpumpe für eine Kraftstoffeinspritzpumpe für Brennkraftmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29811438U1 (de) * 1998-06-26 1998-10-01 USD Formteiltechnik GmbH, 58540 Meinerzhagen Rotor für eine Exzenterschneckenpumpe
DE19942221A1 (de) * 1999-09-03 2001-03-15 Luk Fahrzeug Hydraulik Einrichtung zur Förderung eines gasförmigen oder flüssigen Mediums

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4428370A1 (fr) * 2023-03-08 2024-09-11 Valeo Embrayages Pompe à engrenages
DE102023105779A1 (de) * 2023-03-08 2024-09-12 Valeo Embrayages Zahnradpumpe
US12378958B2 (en) 2023-03-08 2025-08-05 Valeo Embrayages Gear pump

Also Published As

Publication number Publication date
EP0831232A2 (fr) 1998-03-25
DE19638332A1 (de) 1998-03-26
DE19638332C2 (de) 2000-07-20
DE59709430D1 (de) 2003-04-10
EP0831232A3 (fr) 1999-03-03
US6071105A (en) 2000-06-06

Similar Documents

Publication Publication Date Title
DE69817378T2 (de) Innenzahnradpumpe
DE19513380C2 (de) Abdichtung, Lagerung und Antrieb der Rotoren eines trockenlaufenden Schraubenrotorverdichters
WO2001004512A1 (fr) Reducteur a plusieurs etages de pignons cylindriques
EP0831232B1 (fr) Pompe à engrenages
DE3340748C2 (de) Zahnradpumpe, insbesondere für medizinische Zwecke
DE69719937T2 (de) Spiralmaschine und lagerschmierung
EP3452741B1 (fr) Boîte de vitesses équipée d'une pompe entraînée mécaniquement sur une couronne de différentiel de ladite boîte
EP1156221A2 (fr) Pompe à engrenages
DE10058012A1 (de) Zahnradförderpumpe, insbesondere zum Fördern von Kraftstoff zu einer Kraftstoffhochdruckpumpe
DE10014548A1 (de) Zahnradförderpumpe
DE3716083A1 (de) Innenachsige drehkolbenmaschine
DE19638335C2 (de) Förderpumpe
EP0822329A2 (fr) Pompe d'alimentation en carburant pour une pompe d'injection de carburant destinée à des moteurs à combustion interne
DE19714648B4 (de) Kraftstoff-Förderpumpe
DE3542734A1 (de) Innenzahnradpumpe
DE102009047709A1 (de) Zahnradpumpe
DE102009028449A1 (de) Zahnradpumpe
DE60304366T2 (de) Ankupellungsvorrichtung eines drehelementes mit einer nockenwelle
DE19647052C2 (de) Einrichtung zum Fördern von Arbeitsmedien einer Brennkraftmaschine eines Kraftfahrzeuges
DE4403649A1 (de) Lagerung und Antrieb der Rotoren eines Schraubenrotorverdichters
EP1373734A1 (fr) Pompe d'acheminement a roues dentees
DE19825376C2 (de) Zahnradmaschine
DE4308975A1 (de) Wellen-Naben-Verbindung
DE9006632U1 (de) Zahnrad-Kraftstoffpumpe
DE19605718C2 (de) Welle-Nabe-Verbindung für eine Ölpumpe

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: A2

Designated state(s): DE FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19990903

AKX Designation fees paid

Free format text: DE FR GB IT SE

17Q First examination report despatched

Effective date: 20011002

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB IT SE

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: 59709430

Country of ref document: DE

Date of ref document: 20030410

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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: 20031208

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

Ref country code: FR

Payment date: 20050819

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20051021

Year of fee payment: 9

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

Ref country code: GB

Payment date: 20060830

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20060831

Year of fee payment: 10

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: 20070301

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

Ref country code: SE

Payment date: 20060829

Year of fee payment: 10

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070829

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

Ref country code: SE

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

Effective date: 20070830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080430

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: 20070831

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: 20070829

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: 20060831

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: 20070829