[go: up one dir, main page]

EP1305511B1 - Joint de couvercle de cylindre - Google Patents

Joint de couvercle de cylindre Download PDF

Info

Publication number
EP1305511B1
EP1305511B1 EP01955370A EP01955370A EP1305511B1 EP 1305511 B1 EP1305511 B1 EP 1305511B1 EP 01955370 A EP01955370 A EP 01955370A EP 01955370 A EP01955370 A EP 01955370A EP 1305511 B1 EP1305511 B1 EP 1305511B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cylinder head
liner
gasket according
cylinder liner
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
EP01955370A
Other languages
German (de)
English (en)
Other versions
EP1305511A1 (fr
Inventor
Günter Kampichler
Stefan JÄGER
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.)
Motorenfabrik Hatz GmbH and Co KG
Original Assignee
Motorenfabrik Hatz GmbH and Co KG
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 Motorenfabrik Hatz GmbH and Co KG filed Critical Motorenfabrik Hatz GmbH and Co KG
Publication of EP1305511A1 publication Critical patent/EP1305511A1/fr
Application granted granted Critical
Publication of EP1305511B1 publication Critical patent/EP1305511B1/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines
    • F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line

Definitions

  • the invention relates to a cylinder cover gasket for a single or multi-cylinder internal combustion engine, in particular as a four-stroke diesel engine, each one Cylinder is associated with a separate cylinder cover, the sealing on a cylinder bore of the crankcase lined cylinder liner is to the cylinder cover with a bushing collar which ends on a corresponding paragraph of the Cylinder bore is seated and being between the front side Ring surface of the cylinder liner and the adjacent cylinder cover provided a ring seal is.
  • a multi-cylinder four-stroke diesel engine with separate Cylinder covers is in the German patent specification Described 1965-2049.
  • the cylinder cover is opposite the front-side annular surface of the cylinder liner vertically braced, being between cylinder cover and cylinder liner a metallic ring seal intended for water and gas sealing and wherein as an additional fuel gas seal two on Butt cut, twisted against each other sealing rings are inserted, the inner, to the combustion chamber borders.
  • the present invention is the Task, a particularly safe and durable Ring seal between cylinder cover and bushing collar to create the cylinder liner to reach that water paths on the one hand and oil paths on the other are sealed against each other and that interference of fuel gases in these paths reliably fails. It should be additionally achieved that a suitable ring seal no particularly high axial Pressing requires so that unwanted stresses between the components adjacent to the ring seal be avoided.
  • Two drainage channels are preferred per cylinder provided, one of which in the inlet channel, the another opens into the outlet channel.
  • the drainage channels cause that due to the fuel gas pulsations occurring gas leakage in a short way in the inlet or outlet channel flow out before they to the Get ring seal and before there harmful Gas pressures can occur.
  • the drainage channels act thus as immediate pressure relief in the area of annular gap closed by the ring seal.
  • the application of the present invention is not limited to water-cooled engines; rather, it is also useful in air-cooled engines, where there lower demands on the type of ring seal given are.
  • Unlike usual engine designs with a large cylinder head gasket, which covers a plurality of cylinder bores is according to the invention for each cylinder bore with associated Cylinder cover provided a separate ring seal.
  • the invention is provided that the cylinder cover its inner front with one through one
  • the recess formed neck projection ends which with slight interference fit in the associated interior of the Cylinder liner engages. It is sufficient in the generally a relatively small neck projection from about 4 to 6mm in height, depending on the cylinder diameter.
  • an interference fit on Extent of the cylinder cover about H6 m6 in question.
  • an effective represents radial seal
  • can on ring seals which are under high axial pressures, largely dispensed with. Rather, it is enough, the Axial forces acting through the tie rod of the cylinder head attachment be exercised only to be measured that they are just above the occurring ignition forces.
  • this annulus by an axial distance between cylinder cover and cylinder liner and / or a chamfer, groove or step of these components, which the inner circumferential edge of the cylinder liner is adjacent, be formed.
  • the ring seal by an O-ring is formed, which in one of cylinder cover, Cylinder liner and cylinder bore limited Ring groove is received, such that it is on all sides is pressed within the annular groove.
  • the annular groove is by a recess in the Cylinder cover and / or in the area of the outer peripheral edge the cylinder liner formed. It can be this also act around conical indentations, then prefers if such on the cylinder cover, another at the Cylinder sleeve is formed so that when moving together of these components between the recesses inserted O-ring strong against the cylinder bore is pressed where he has an effective barrier between Water and oil path on the inner circumference of the cylinder bore forms.
  • an additional axial seal thereby realized be that cylinder liner and cylinder cover radially inside the annular groove for the O-ring in axial Directly adjacent to each other direction, such that a annular sealing and support surface is formed, the the surface pressure by the tie rods of the cylinder head attachment subject.
  • This creates an axial Ring sealing surface in a practical embodiment has a radial width of about 1mm.
  • a particularly long life of the O-ring can be achieve this as part of a combined Cylinder cover gasket is provided, namely in the way that cylinder liner and cylinder cover radially inward of the annular groove in the axial direction a metal sealing ring supported against each other which is the surface pressure of the tie rods subject to the cylinder head mounting.
  • a sealing ring preferably made of copper, is a perfect gas barrier against the O-ring achievable.
  • Such a metal sealing ring also has the Advantage that the axial distance between the cylinder cover and cylinder liner formed by the sealing ring which is the annulus into which the inner end of the Drainage channel opens, limited radially outward. In this case, the formation of grooves or chamfers is unnecessary on the adjacent components to create a such annulus.
  • Such a sealing ring made of copper allows due its plastic deformability a limited Adjustment with regard to the positioning of the cylinder cover relative to the cylinder liner, so that the Combustion chamber adjusted in the correct position and thus a certain compression ratio can be ensured can.
  • a comparable effect can be characterized achieve that between Buchsenbund and his Support serving paragraph of the cylinder bore axially deformable metal compensating ring is inserted.
  • the cylinder cover made of an aluminum alloy and the cylinder liner after the Centrifuging method is made of gray cast iron.
  • Such metal sealing rings can Similar to piston rings as slotted metal sleeves made of V2A steel of 0.2 to 0.3mm wall thickness be, with two such seals with in the circumferential direction staggered shocks can be provided. Also suitable are seals as undivided calibrated steel collars, with correspondingly lower Wall thickness, so that they through the compression and Ignition pressure each sealing in the appropriate Turning the cylinder liner and the cylinder cover be pressed.
  • Fig. 1 shows within a cylinder bore 1 in Crankcase 6, the upper end of a cylinder liner 2, which ends with a widened bushing collar 3. This engages behind a paragraph 4 of the cylinder bore 1. Between the paragraph 4 and the Buchsenbund 3 is a Compensating ring 5 inserted through a hollow Brass ring (Fig. 2) is formed.
  • a cylinder cover 7 is made of an aluminum alloy in the cylinder bore 1 with a slight interference fit H6 / m6 fitted in accordance with DIN 7157. As an intent he has one flat neck ledge 8, with which he enters the interior of Cylinder liner 2 engages. Between one front-side annular surface 9 (FIG. 2) of the bushing collar 3 and the cylinder cover 7 is in an annular groove 9 of the cylinder cover an O-ring 11. This is in the Ring groove 9 pressed so that it is on all sides of the from cylinder cover 7, cylinder liner 2 and Cylinder bore 1 formed walls abuts.
  • Cylinder cover 7 is pierced by a drainage channel 12, on the one hand in the area of the inner edge of Cylinder liner 2, on the other hand in the inlet channel 13 in Inside the cylinder cover 7 opens.
  • the opposite Drainage channel 14 opens instead in the Outlet channel 15.
  • Fig. 1 in the region of the cylinder cover 7 is a cross section through a Cooling water channel 16 and the receiving bore 17 for a pump nozzle or a nozzle holder combination.
  • the O-ring remains 11 spared from temperature stress, resulting in increased its service life accordingly. Further omitted a harmful gas inlet into the cooling water or in the oil circuit.
  • the oil path according to arrow O is nourished through the oil circuit, through which the cylinder liner 2 with its outer circumference floating within the lower part of the cylinder bore 1 is mounted. There the compensation ring 5 no increased sealing effect arrives, oil from the lubricating oil circuit arrives at Compensating ring 5 over between the outer circumference of the Bushing collar 3 and the cylinder bore 1.
  • FIGS. 4 to 6 each show designed as an O-ring 11 ring seal, which like all other variants with a round cord seal 20 is combined.
  • a metal sealing ring 25 as an axial seal between cylinder cover 7 and cylinder liner 2.
  • the Metal sealing ring 25 is preferably made of a deformable metal such as copper, so that he himself especially good on the adjacent sealing surfaces snuggles and also a limited axial adjustment between cylinder cover 7 and cylinder liner 2 for the purpose of meeting the clearance criteria for the combustion chamber allows.
  • the cylinder cover 2 has below one between the sealing ring 25, cylinder cover 7 and Cylinder liner 2 formed annular space 26, in which the drainage channel 12 opens a chamfer 27, the with the cylinder liner 2 in cross section triangular-shaped circumferential cavity that forms with a compressed metal braid 28 or a matching Form ring, z. B. made of copper, filled gas-tight.
  • This compression is done in such a way that a ring with in the pressed state rectangular ring cross-section made of metal mesh when retracting the cylinder cover 7 in the cylinder bore accordingly is compressed.
  • FIG. 6 In the variant of Figure 6 is a to the combustion chamber 19 adjacent metal sealing ring 29, which the impact between cylinder cover 7 and cylinder liner 2 bridged, within a recess 30 at the inside of the cylinder liner 2 is arranged.
  • Sealing ring 29 consists of either one calibrated V2A steel ring or he is out of at least composed of two open thin-walled steel rings, which offset with their butt joints in the circumferential direction are arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)

Claims (13)

  1. Joint de couvercle de cylindre pour un moteur à combustion interne à un ou à plusieurs cylindres, notamment pour une moteur diesel à quatre temps, un couvercle de cylindre (7) séparé qui est posé de façon à assurer l'étanchéité sur une chemise du cylindre (2) revêtant l'alésage du cylindre (1) dans le carter de vilebrequin (6) qui se termine en direction du couvercle de cylindre (7) par un bourrelet (3) qui s'applique sur un talon (4) correspondant de l'alésage du cylindre (1) étant associé à chaque cylindre et un joint annulaire (11) étant prévu entre la surface annulaire frontale (9) de la chemise du cylindre (2) et le couvercle de cylindre adjacent (7),
    caractérisé en ce qu'un canal de drainage (12, 14) qui par une extrémité débouche en direction radiale à l'intérieur du joint annulaire (11) dans la région du bord intérieur de la chemise de cylindre (2) et dont l'autre extrémité est reliée au canal d'entrée (13) ou de sortie (15) dans le couvercle de cylindre (7) est prévu dans le couvercle de cylindre.
  2. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que deux canaux de drainage (12, 14) dont l'un débouche dans le canal d'entrée (13) et l'autre débouche dans le canal de sortie (15) sont prévus pour chaque cylindre.
  3. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que sur sa face frontale intérieure, le couvercle de cylindre se termine par une saillie en forme de col (8) formée par tournage dans la masse, qui s'accroche dans le bord intérieur associé de la chemise de cylindre (2) par ajustement légèrement forcé.
  4. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que l'extrémité intérieure du canal de drainage (12, 14) débouche dans un espace annulaire (26) qui est adjacent au bord périphérique intérieur associé de la chemise de cylindre (2).
  5. Joint de couvercle de cylindre selon la revendication 4,
    caractérisé en ce que l'espace annulaire (26) est formé par une distance axiale entre le couvercle du cylindre (7) et la chemise de cylindre (2) et/ou par un chanfrein, une rainure ou un gradin de ces éléments, qui est adjacent au bord intérieur de la chemise de cylindre (2).
  6. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que le joint annulaire est formé par un joint torique (11) qui est logé dans une rainure annulaire (9) délimitée par le couvercle de cylindre (7), la chemise de cylindre (2) et l'alésage de cylindre (1), de façon à être comprimé de tous les côtés à l'intérieur de la rainure annulaire (9).
  7. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que la rainure annulaire (9) est formée par un tournage dans la masse du couvercle du cylindre (7) et/ou dans la région du bord périphérique extérieur de la chemise de cylindre (2).
  8. Joint de couvercle de cylindre selon la revendication 7,
    caractérisé en ce que la chemise de cylindre (2) et le couvercle de cylindre (7) sont directement adjacents en direction radiale à l'intérieur de la rainure annulaire (9), de façon à former une surface d'étanchéité et d'appui annulaire, qui est soumise à la pression superficielle par le tirant d'ancrage de la fixation de la tête de cylindre.
  9. Joint de couvercle de cylindre selon la revendication 7,
    caractérisé en ce que la chemise de cylindre (2) et le couvercle de cylindre (7) sont soutenus l'un par rapport à l'autre en direction axiale, radialement à l'intérieur de la rainure annulaire (9) par une bague d'étanchéité métallique (25) qui est soumise à la pression superficielle par le tirant d'ancrage de la fixation de la tête de cylindre.
  10. Joint de couvercle de cylindre selon les revendications 5 et 9,
    caractérisé en ce que la distance axiale entre le couvercle de cylindre (7) et la chemise de cylindre (2) est formée par la bague d'étanchéité (25) qui délimite l'espace annulaire (26) dans lequel débouche l'extrémité intérieure du canal de drainage (12, 14).
  11. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce qu'une bague de compensation (5) métallique déformable, limitée en direction axiale est insérée entre le bourrelet (3) et le talon (4) de l'alésage cylindrique (1) servant à le soutenir (4).
  12. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce que le couvercle de cylindre (7) est fabriqué en un alliage aluminium et en ce que la chemise de cylindre (2) est fabriquée en tôle grise, selon le procédé de rotomoulage.
  13. Joint de couvercle de cylindre selon la revendication 1,
    caractérisé en ce qu'au moins une bague d'étanchéité métallique (29) adjacente à la chambre de combustion (19), qui surmonte le choc entre le couvercle de cylindre (7) et la chemise de cylindre est disposée à l'intérieur d'un tournage plat dans la masse (30), sur la face intérieure de la chemise de cylindre (2) et du couvercle de cylindre (7).
EP01955370A 2000-08-02 2001-07-25 Joint de couvercle de cylindre Expired - Lifetime EP1305511B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10037748A DE10037748C1 (de) 2000-08-02 2000-08-02 Zylinderdeckeldichtung
DE10037748 2000-08-02
PCT/EP2001/008590 WO2002010572A1 (fr) 2000-08-02 2001-07-25 Joint de couvercle de cylindre

Publications (2)

Publication Number Publication Date
EP1305511A1 EP1305511A1 (fr) 2003-05-02
EP1305511B1 true EP1305511B1 (fr) 2005-10-12

Family

ID=7651130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01955370A Expired - Lifetime EP1305511B1 (fr) 2000-08-02 2001-07-25 Joint de couvercle de cylindre

Country Status (5)

Country Link
US (1) US6584947B2 (fr)
EP (1) EP1305511B1 (fr)
JP (1) JP2004505196A (fr)
DE (2) DE10037748C1 (fr)
WO (1) WO2002010572A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE525322C2 (sv) * 2003-06-04 2005-02-01 Volvo Lastvagnar Ab Tätningsförband vid en förbränningsmotor
DE102004032904B4 (de) * 2004-07-07 2006-06-14 Motorenfabrik Hatz Gmbh & Co Kg Dichtungssystem für eine Brennkraftmaschine mit geteiltem Gussgehäuse
DE102006004205B3 (de) * 2006-01-25 2007-06-06 Motorenfabrik Hatz Gmbh & Co Kg Ein- oder Mehrzylinder-Brennkraftmaschine mit geteiltem Gußgehäuse
CN102536505A (zh) * 2010-12-31 2012-07-04 中国兵器工业集团第七○研究所 一种单体气缸盖整体气门室罩密封机构
JP2016211396A (ja) * 2015-04-30 2016-12-15 トヨタ自動車株式会社 内燃機関

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853099A (en) * 1972-12-21 1974-12-10 Caterpillar Tractor Co Elastomeric sealing ring for cylinder liners
DE2621348C2 (de) * 1976-05-14 1984-05-30 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Zylinder mit trockener dünnwandiger Zylinderlaufbuchse für Brennkraftmaschinen
US4280456A (en) 1979-10-26 1981-07-28 General Motors Corporation Engine with intake ported cylinders and porous port liners for oil control
JP3303018B2 (ja) 1993-09-06 2002-07-15 三信工業株式会社 水冷エンジンのシリンダヘッドシール構造
US5414993A (en) * 1993-12-22 1995-05-16 Caterpillar Inc. Exhaust port liner and seal assembly
US5577472A (en) * 1995-06-07 1996-11-26 Cummins Engine Company, Inc. Spring-energized cylinder head combustion seal assembly
DE19652049C1 (de) * 1996-12-13 1998-07-02 Hatz Motoren Brennkraftmaschine und Verfahren zu deren Herstellung
US5970941A (en) * 1998-06-16 1999-10-26 Caterpillar Inc. Cylinder liner connecting arrangement and method

Also Published As

Publication number Publication date
WO2002010572A1 (fr) 2002-02-07
US20020148429A1 (en) 2002-10-17
JP2004505196A (ja) 2004-02-19
EP1305511A1 (fr) 2003-05-02
DE10037748C1 (de) 2001-11-15
US6584947B2 (en) 2003-07-01
DE50107702D1 (de) 2005-11-17

Similar Documents

Publication Publication Date Title
DE3032253C2 (de) Verbrennungsmotor, insbesondere Dieselmotor
DE3118498C2 (de) Ölgekühlte Zylinderlaufbüchse
DE2621348C2 (de) Zylinder mit trockener dünnwandiger Zylinderlaufbuchse für Brennkraftmaschinen
EP1546536B1 (fr) Piston monobloc a conduite de refroidissement pour moteur a combustion interne
WO2004040115A1 (fr) Culasse de moteur a combustion interne a baguette de palier d'arbre a cames
DE69809044T2 (de) KOLBEN FüR EINEN ZWEITAKT-DIESELMOTOR
DE3518721A1 (de) Oelgekuehlter, mehrteiliger tauchkolben einer brennkraftmaschine
DE69601375T2 (de) Brennkraftmaschine mit einem koksschabring in einem zylinder
DE112010004758T5 (de) Verbunddichtung, Zylinderlaufbuchse und Montageverfahren für einen Motor
EP0154939B1 (fr) Piston en deux parties, refroidi à l'huile
DE69416230T2 (de) Brennkraftmaschine
DE19621398A1 (de) Abgedichteter Gelenkkolben
EP1305511B1 (fr) Joint de couvercle de cylindre
WO2020107052A1 (fr) Moteur à combustion interne comprenant une chemise à liquide de refroidissement
DE102017112574B3 (de) Hydraulisches Abstützelement mit einem Ringfilter
DE19514918C2 (de) Kolben für Brennkraftmaschine
DE4119594C2 (de) Flüssigkeitsgekühlter Leichtmetall-Zylinderkopf
DE10350500A1 (de) Verfahren zur Vergrößerung von Motorzylinderbohrungen
DE2541966A1 (de) Arbeitskolben fuer brennkraftmaschinen
DE102005031243B4 (de) Kühleinsatz für einen Zylinderkopf einer Brennkraftmaschine
DE69810236T2 (de) Kolbenbrennkraftmaschine
DE3521789A1 (de) Fluessigkeitsgekuehltes zylinderrohr
AT409787B (de) Kraftstoffeinspritzaggregat für dieselmotoren
DE2166443C2 (de) Brennkraftmaschinenkolben mit einem Abdichtungsring mit U-Profil
DE2107563A1 (de) Kolbenring für eine Brennkraftmaschine

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: 20020328

AK Designated contracting states

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

GBC Gb: translation of claims filed (gb section 78(7)/1977)
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

RBV Designated contracting states (corrected)

Designated state(s): DE GB IT

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 GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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

Effective date: 20051012

REF Corresponds to:

Ref document number: 50107702

Country of ref document: DE

Date of ref document: 20051117

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: 20060713

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

Ref country code: GB

Payment date: 20070730

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20070925

Year of fee payment: 7

Ref country code: IT

Payment date: 20070727

Year of fee payment: 7

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

Effective date: 20080725

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: 20090203

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: 20080725

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: 20080725