EP1954424A1 - Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement - Google Patents

Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement

Info

Publication number
EP1954424A1
EP1954424A1 EP06818435A EP06818435A EP1954424A1 EP 1954424 A1 EP1954424 A1 EP 1954424A1 EP 06818435 A EP06818435 A EP 06818435A EP 06818435 A EP06818435 A EP 06818435A EP 1954424 A1 EP1954424 A1 EP 1954424A1
Authority
EP
European Patent Office
Prior art keywords
casting
cooling channel
steel piston
precision
core
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.)
Granted
Application number
EP06818435A
Other languages
German (de)
English (en)
Other versions
EP1954424B1 (fr
Inventor
Andreas Rehl
Hans-Joachim Weimar
Emmerich Ottliczky
Volker Gniesmer
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP1954424A1 publication Critical patent/EP1954424A1/fr
Application granted granted Critical
Publication of EP1954424B1 publication Critical patent/EP1954424B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F02F3/00—Pistons 
    • F02F3/16—Pistons  having cooling means
    • F02F3/20—Pistons  having cooling means the means being a fluid flowing through or along piston
    • F02F3/22—Pistons  having cooling means the means being a fluid flowing through or along piston the fluid being liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Definitions

  • One-piece steel piston as precision casting variant with core for the machining of a cooling channel
  • the invention relates to a method for producing a one-piece steel piston for an internal combustion engine of a passenger car and a steel piston produced by this method according to the features of the preamble of claim 1.
  • one-piece steel pistons with a closed cooling channel are already known, which are manufactured in the sand casting process.
  • the wall thicknesses in the sand casting method and die casting are significantly higher than in cast iron, so that a lightweight construction desired in the passenger car sector can not be achieved.
  • the invention is therefore based on the object to provide a steel piston in particular for the operation of high-speed and high-pressure diesel engines, which meets the above-mentioned parameters, in particular lowered the exhaust emissions during operation of the piston and at the same time with a performance increase lower consumption of the engine is achieved, whereby the production costs for such a steel piston are to be considered.
  • a manufacturing method in which the casting method is a precision casting method and the casting mold and the lost core are designed such that at least two or more closable openings are formed in the cooling channel after the casting mold and the lost core have been removed.
  • This initially has the advantage that, on the one hand, a higher-strength material, in particular steel, is used and, on the other hand, the cooling channel, in particular its cross-section, is increased.
  • the larger surface of the cooling channel increases the heat dissipation and reduces the heat load of the critical areas on the steel piston, in particular in the region of the piston crown.
  • the mechanical properties of the steel and the greater potential of the investment casting process counteract the design freedom of the increased load.
  • the novelty of the invention relates to the realization of a one-piece steel piston of a highly loaded, future-oriented steel piston for the operation of fast-running high-pressure diesel engines, which is manufactured by investment casting and in which, if necessary, the closing of the cooling channel can be done, but not
  • a core in particular a core of high-temperature-resistant materials, in particular a ceramic core, which can be easily and quickly produced in accordance with the present invention.
  • ing invention can be removed from the cast steel piston.
  • the invention relates to a cast one-piece steel piston, in which the removal of the core for the cooling channel, in particular of the ceramic core, is done in an economical manner, in particular leads to a cost reduction.
  • a plurality of openings with any sufficient cross-section in particular kidney-shaped or similar openings with a sufficient cross section, are provided in the casting, which are closed form-fit or material-locking after the removal of the core.
  • the oil inlet or oil outlet bore can already be integrated by suitable manufacturing process in the occluding component.
  • the casting mold is designed to hold the lost core via sleeves or the like.
  • the entire steel piston can be poured very quickly and easily by precision casting, with just as quickly and easily the lost core can be removed after the solidification of the casting melt.
  • the casting mold consists of a heat-resistant wax material.
  • This wax material has, among other suitable materials for the casting mold the advantage that the subsequent, that is, after casting resulting outer contour of the steel piston is very accurate and corresponds to the later external dimensions, so that the subsequent step of finishing is less expensive than when using other materials for the mold.
  • the two figures 1 and 2 show on the one hand a section through a one-piece steel piston 1, and on the other hand, a three-dimensional view of such a piston, which has been produced by investment casting. It can be seen that in the piston head 2, in particular behind a ring field 3 with a plurality of annular grooves and a combustion bowl 4, a preferably radially encircling cooling channel 5 is present, by means of a core, in particular a sand-, ceramic- and / or fibrous core, has been produced.
  • the piston 1 in a conventional manner piston shafts and bolt holes, the are arranged below the piston head 2.
  • Such an exemplary, but non-limiting embodiment is shown in Figures 1 and 2.
  • At least one closure part 6, in particular a plurality of closure parts 6, is provided, which have a round, oval, kidney or other geometric shape, which or after the casting of the piston 1 in the through the casting mold and the lost Core formed connection to the cooling channel 5 is (are) used.
  • these closure parts 6 are not used in all connections, so that then at least one oil inlet and at least one oil outlet hole or opening is available.
  • the cavity is not used for a circulating cooling medium, but for weight savings.
  • a negative mold which images the later outer contours of the piston blank to be cast, made of a heat-resistant, in particular a wax material.
  • the core material is fixed at a distance to these molds via pins, in particular wax pencils, quills or the like, and the negative mold is filled with molten casting. After solidification of the casting melt, the negative mold is removed, so that serve as inlet or outlet openings for the cooling channel to be removed pins, quills and the like. After these have been removed, as well as the core material, the at least one closure part is introduced into the opening to close the cooling channel.
  • the respective closure part can be non-positively and / or positively attached to the underside of the cooling channel or elsewhere, where the holder for the core material have been found attached.
  • the closure member 6 can be seen again, which is inserted into the opening, which is formed after the casting of the steel piston.
  • the casting when casting standing opening extends in an advantageous manner with respect to the piston stroke down, since from this direction usually the cooling medium (cooling oil) is injected.
  • the invention provides that the resulting during casting openings are present in the cooling channel 5 radially circumferentially at several points below the cooling channel 5, that means that such openings are only partially available. That is, the cooling channel 5 is closed at its bottom after casting, but two or more openings are present. These openings are used as inlet and outlet opening for the cooling medium. If more than two such openings are present, they can also serve as inlet or drain opening for the cooling medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP06818435A 2005-11-10 2006-11-09 Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement Active EP1954424B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005053999 2005-11-10
PCT/EP2006/010737 WO2007054299A1 (fr) 2005-11-10 2006-11-09 Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement

Publications (2)

Publication Number Publication Date
EP1954424A1 true EP1954424A1 (fr) 2008-08-13
EP1954424B1 EP1954424B1 (fr) 2011-08-10

Family

ID=37667196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818435A Active EP1954424B1 (fr) 2005-11-10 2006-11-09 Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement

Country Status (3)

Country Link
EP (1) EP1954424B1 (fr)
AT (1) ATE519551T1 (fr)
WO (1) WO2007054299A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116332A1 (de) * 2011-07-05 2013-01-10 Mahle International Gmbh Kolben für einen Verbrennungsmotor
CN103394642A (zh) * 2013-07-19 2013-11-20 宁波吉威熔模铸造有限公司 一种汽车发动机活塞的铸造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8700642A (pt) * 1987-02-09 1988-08-30 Metal Leve Sa Embolo articulado
JP3915155B2 (ja) * 1996-12-17 2007-05-16 アイシン精機株式会社 内燃機関用ピストンの製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007054299A1 *

Also Published As

Publication number Publication date
WO2007054299A1 (fr) 2007-05-18
ATE519551T1 (de) 2011-08-15
EP1954424B1 (fr) 2011-08-10

Similar Documents

Publication Publication Date Title
EP1922479B1 (fr) Piston pour moteur a combustion interne
EP2342441B1 (fr) Piston avec canal de refroidissement pour un moteur à combustion interne, avec un élément de fermeture qui ferme le canal de refroidissement
WO2008055973A1 (fr) Moule de coulée pour la coulée d'une pièce et utilisation de ce moule de coulée
DE112009000915B4 (de) Verfahren zum Druckgießen eines Aluminium- oder Magnesiumlegierungsgegenstandes mithilfe einer Opferhülse
WO2010003398A1 (fr) Insert pour le piston d'un moteur à combustion interne et piston ou tête de piston équipé de l'insert
DE102016114957A1 (de) Kolben für eine Brennkraftmaschine
DE10209168B4 (de) Stahlkolben mit Kühlkanal
DE102012203570A1 (de) Gegossener Leichtmetallkolben, insbesondere ein Aluminiumkolben
WO2004111419A1 (fr) Piston pour un moteur a combustion interne et procede de coulee pour sa production
EP2738377A2 (fr) Procédé de fabrication d'un bloc moteur
DE102016122080A1 (de) Gegossene Zu- und Ablauföffnungen bei Stahlguss- und Eisengusskolben
EP1954424B1 (fr) Piston en acier d'une seule piece en variante d'une coulee de precision avec un noyau pour la fabrication technique par coulee de pression d'un canal de refroidissement
DE102008031864A1 (de) Einlegteil für einen Kolben eines Verbrennungsmotors sowie mit dem Einlegeteil versehener Kolben oder Kolbenkopf
DE10129046B4 (de) Kolben für eine Brennkraftmaschine mit einem Eingußkörper
EP2734322B1 (fr) Noyau de coulée d'un moule pour la fabrication d'un cylindre
DE102005023902B4 (de) Kurbelgehäuse, Ölkanalkern zur Herstellung eines Kurbelgehäuses und Verfahren zur Herstellung eines Kurbelgehäuses
DE10003821C5 (de) Kolben, insbesondere ein Leichtmetallkolben für eine Brennkraftmaschine
EP3068560B1 (fr) Pièce moulée complexe et procédé de coulée afférent
DE102017119891A1 (de) Kolben, bestehend aus einem Innenteil und einem Außenteil
DE19954725A1 (de) Kolben mit einer Verbindung von einem Kühlkanal zu einer Kolbenbolzenbohrung
DE102014210875A1 (de) Kolben und Verfahren zu dessen Herstellung
EP2165789B1 (fr) Procédé de fabrication d'un piston d'un moteur à combustion interne doté d'une coulisse de noyaux en plusieurs parties
DE10230745B4 (de) Verfahren zur Herstellung eines Kolbens mit kurzer Kompressionshöhe
DE102017108271A1 (de) Kolben
DE102008031862A1 (de) Einlegeteil für einen Kolben eines Verbrennungsmotors sowie mit dem Einlegeteil versehener Kolben oder Kolbenkopf

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: 20080404

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 20090218

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006010011

Country of ref document: DE

Effective date: 20111006

RIN2 Information on inventor provided after grant (corrected)

Inventor name: BUERKLE, GUNTER

Inventor name: GNIESMER, VOLKER

Inventor name: OTTLICZKY, EMMERICH

Inventor name: WEIMAR, HANS-JOACHIM

Inventor name: REHL, ANDREAS

Inventor name: SCHALLER, CHRISTIAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110810

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110810

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

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111212

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111210

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

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

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111111

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

BERE Be: lapsed

Owner name: KS KOLBENSCHMIDT G.M.B.H.

Effective date: 20111130

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

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

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

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

Ref country code: MC

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

Effective date: 20111130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20120511

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

Ref country code: LI

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

Effective date: 20111130

Ref country code: CH

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

Effective date: 20111130

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

Ref country code: BE

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

Effective date: 20111130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502006010011

Country of ref document: DE

Effective date: 20120511

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 519551

Country of ref document: AT

Kind code of ref document: T

Effective date: 20111109

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

Ref country code: AT

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

Effective date: 20111109

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

Ref country code: FR

Payment date: 20121130

Year of fee payment: 7

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

Ref country code: GB

Payment date: 20121120

Year of fee payment: 7

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111121

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

Ref country code: LU

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

Effective date: 20111109

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111110

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110810

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

Effective date: 20131109

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140731

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: 20131109

Ref country code: FR

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

Effective date: 20131202

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

Ref country code: DE

Payment date: 20221123

Year of fee payment: 17