EP1583896B1 - Mehrteiliger gekühlter kolben für einen verbrennungsmotor - Google Patents

Mehrteiliger gekühlter kolben für einen verbrennungsmotor Download PDF

Info

Publication number
EP1583896B1
EP1583896B1 EP03770881A EP03770881A EP1583896B1 EP 1583896 B1 EP1583896 B1 EP 1583896B1 EP 03770881 A EP03770881 A EP 03770881A EP 03770881 A EP03770881 A EP 03770881A EP 1583896 B1 EP1583896 B1 EP 1583896B1
Authority
EP
European Patent Office
Prior art keywords
piston
piston part
cooling channel
threaded
bolt
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
EP03770881A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1583896A1 (de
Inventor
Rainer Scharp
Dieter Messmer
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.)
Mahle GmbH
Original Assignee
Mahle 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 Mahle GmbH filed Critical Mahle GmbH
Publication of EP1583896A1 publication Critical patent/EP1583896A1/de
Application granted granted Critical
Publication of EP1583896B1 publication Critical patent/EP1583896B1/de
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
    • F02F3/00—Pistons 
    • 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
    • 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 
    • F02F3/0015—Multi-part pistons
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together

Definitions

  • the invention relates to a multi-part cooled piston for an internal combustion engine according to the preamble of claim.
  • European Patent Application 0 604 223 A1 discloses a piston which is used in a diesel engine and which consists of a piston upper part and a piston lower part.
  • the upper piston part is screwed onto the lower part of the piston via a threaded bolt mounted centrally on the upper part of the piston and via a threaded hole incorporated in the lower part of the piston.
  • a threaded bolt mounted centrally on the upper part of the piston and via a threaded hole incorporated in the lower part of the piston.
  • a lock nut In order to achieve a permanent assembly connection, it is necessary to secure the screw connection by means of a lock nut.
  • the disadvantage here is that during assembly of the piston, only a short piece of the threaded bolt between the pin bosses appears, so that it is difficult to screw on a lock nut.
  • a piston according to the preamble of claim 1 is described in EP 04 696 66 A1.
  • the invention is based on the problem of designing the upper and the lower part of a multi-part, cooled piston such that a simple assembly of the piston upper part on the piston lower part is possible without the additional use of a lock nut or other securing means.
  • a multi-part cooled piston 1 which consists of a piston upper part 2, which has a combustion bowl 3 and an annular wall 4 with a ring portion 5, and a piston lower part 6, which has a box-shaped piston shaft 7 and two associated pin bosses 8 each comprises a pin bore 9 for receiving a piston pin, not shown in the figure.
  • the upper piston part 2 and the lower piston part 6 delimit an outer annular cooling channel 10 and an inner cooling channel 11 arranged concentrically therewith, wherein the outer cooling channel 10 has at least one inflow opening 12 for introducing cooling oil and is connected to the inner cooling channel 11 via at least one overflow channel 13 ,
  • This overflow channel 13 may be formed as a bore.
  • two opposing overflow channels 13 may be provided here.
  • the inner cooling channel 11 has at least one drain hole 14, via which the cooling oil can escape from the inner cooling channel 11.
  • the upper piston part 2 is in this case on the one hand via an annular bearing surface 15 which is arranged on the combustion bowl 3 side facing away from the piston upper part 2, on an upper support surface 16 of an annular support rib 17 of the piston lower part 6 and on the other via a on the underside of the annular wall 4 located cross-sectional area 18 mounted on an upper cross-sectional area 19 of an annular support web 20 of the piston lower part 6.
  • the bearing surfaces 15 and 16 form an inner, planar and horizontally arranged, or roof or plate-shaped support 21 and the cross-sectional surfaces 18 and 19 a to the inner pad 21 coaxially and horizontally arranged, or also roof or plate-shaped, outer pad 22nd
  • the support web 20 is formed step-shaped, so that the piston upper part 2 can be centered by a machined into the inside of the lower part of the annular wall 4, cylindrical recess 23 in that during assembly of Kolbenober- and -unterteil the inner wall of the cylindrical recess 23 with the cylindrical Front side 24 of the support web 20 comes into contact, wherein it is necessary that the inner diameter of the cylindrical recess 23 is greater by such a tolerance measure than the outer diameter of the cylindrical end face 24 of the support web 20 that a trouble-free mounting of the upper part 2 is ensured on the lower part 6 ,
  • On the combustion bowl 3 side facing away from the piston upper part 2 has a centrally and coaxially to the longitudinal axis 25 of the piston 1 arranged bolt 26, whose end 27 is provided with a thread 28.
  • the region 31 between the annular support rib 17 of the piston lower part 6, which defines the inner cooling channel 11 together with the piston upper part 2, is formed relatively thin-walled and is provided in its center with a coaxial with the longitudinal axis 25 of the piston 1 arranged bore 29, the one on the thread 28 of the bolt 26 has matching internal thread 30.
  • the piston upper part 2 may consist of an oxidation-resistant and / or heat-resistant material.
  • the piston lower part 6 consists of a precipitation-hardening ferritic-pearlitic steel or tempered steel, the steel grades 38MnVS6 or 42CrMo4 typically being used (according to the German Steel-Iron-Material-Sheet 101).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP03770881A 2002-12-06 2003-09-24 Mehrteiliger gekühlter kolben für einen verbrennungsmotor Expired - Lifetime EP1583896B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10257022A DE10257022A1 (de) 2002-12-06 2002-12-06 Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
DE10257022 2002-12-06
PCT/DE2003/003170 WO2004053319A1 (de) 2002-12-06 2003-09-24 Mehrteiliger gekühlter kolben für einen verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP1583896A1 EP1583896A1 (de) 2005-10-12
EP1583896B1 true EP1583896B1 (de) 2006-05-17

Family

ID=32115585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03770881A Expired - Lifetime EP1583896B1 (de) 2002-12-06 2003-09-24 Mehrteiliger gekühlter kolben für einen verbrennungsmotor

Country Status (10)

Country Link
US (1) US6729291B1 (pt)
EP (1) EP1583896B1 (pt)
JP (1) JP4414894B2 (pt)
KR (1) KR101067577B1 (pt)
CN (1) CN100339584C (pt)
BR (2) BR0310142B1 (pt)
DE (2) DE10257022A1 (pt)
HK (1) HK1084169A1 (pt)
RU (1) RU2313679C2 (pt)
WO (1) WO2004053319A1 (pt)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2365507B (en) 2000-08-02 2004-09-15 Federal Mogul Technology Ltd Engine piston and manufacture
DE10337961A1 (de) * 2003-08-19 2005-04-21 Mahle Gmbh Mehrteiliger Kolben für einen Verbrennungsmotor
DE102004061778A1 (de) 2004-09-29 2006-04-06 Ks Kolbenschmidt Gmbh Einfach-Reibschweißung
DE102004057624A1 (de) * 2004-11-30 2006-06-01 Mahle International Gmbh Mehrteiliger, gekühlter Kolben für einen Verbrennungsmotor
DE102005041409A1 (de) * 2005-09-01 2007-03-08 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
DE102005042003A1 (de) 2005-09-05 2007-03-08 Mahle International Gmbh Gebauter, flüssigkeitsgekühlter Kolben
EP1960653B1 (de) * 2005-12-17 2010-12-01 Mahle International GmbH Zweiteiliger kolben für einen verbrennungsmotor
DE102005061899A1 (de) * 2005-12-23 2007-06-28 Mahle International Gmbh Mehrteiliger Kolben für eine Verbrennungsmotor
DE102006002949A1 (de) * 2006-01-21 2007-08-02 Ks Kolbenschmidt Gmbh Kühlkanalkolben für eine Brennkraftmaschine
DE102006013906A1 (de) * 2006-03-25 2007-10-18 Mahle International Gmbh Mehrteiliger Kolben für einen Verbrennungsmotor
DE102006027354A1 (de) * 2006-06-13 2007-12-20 Mahle International Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
DE102007013183A1 (de) * 2006-07-07 2008-01-17 Ks Kolbenschmidt Gmbh Kühlkanalkolben für eine Brennkraftmaschine
US7533601B2 (en) 2006-12-12 2009-05-19 Mahle Technology, Inc. Multi-part piston for a combustion engine
DE102007060472A1 (de) * 2007-12-14 2009-06-18 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
DE102007061601A1 (de) * 2007-12-20 2009-06-25 Mahle International Gmbh Kolben für einen Verbrennungsmotor sowie Verfahren zu seiner Herstellung
EA016702B1 (ru) * 2008-10-24 2012-06-29 Государственное Научное Учреждение "Физико-Технический Институт Национальной Академии Наук Беларуси" Способ изготовления охлаждающего канала поршня двигателя внутреннего сгорания
DE102008056203A1 (de) * 2008-11-06 2010-05-12 Mahle International Gmbh Mehrteiliger Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
CN101761384B (zh) * 2008-11-10 2013-03-06 扬动股份有限公司 发动机活塞连杆结构
DE102008058190A1 (de) * 2008-11-20 2010-05-27 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
DE102009015820A1 (de) * 2009-04-01 2010-10-07 Mahle International Gmbh Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
US8863718B2 (en) * 2009-08-06 2014-10-21 Federal-Mogul Corporation Low thermal conductivity piston and method of construction thereof
US9334957B2 (en) 2009-12-23 2016-05-10 Federal-Mogul Corporation Piston having dual gallery, method of construction, and piston body portions thereof
US8327537B2 (en) * 2009-12-23 2012-12-11 Federal Mogul Corporation Reinforced dual gallery piston and method of construction
DE102010053925A1 (de) * 2010-12-09 2012-06-14 Mahle International Gmbh Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
US10753310B2 (en) * 2012-02-10 2020-08-25 Tenneco Inc. Piston with enhanced cooling gallery
CN102996280B (zh) * 2012-06-13 2014-11-26 北京理工大学 一种基于空腔隔热的钛合金活塞及其设计方法
DE102012014194A1 (de) * 2012-07-18 2014-01-23 Mahle International Gmbh Verfahren zur Herstellung eines Kolbens
CN102943717A (zh) * 2012-12-06 2013-02-27 湖南江滨机器（集团）有限责任公司 钢顶铝裙组合活塞
US9291119B2 (en) * 2013-03-14 2016-03-22 Mahle International Gmbh Piston assembly with preloaded support surfaces
RU2540194C1 (ru) * 2013-09-25 2015-02-10 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Поршень форсированного дизельного двигателя
CN104832315A (zh) * 2014-07-21 2015-08-12 北汽福田汽车股份有限公司 发动机活塞和具有其的发动机
CN104458498A (zh) * 2014-11-25 2015-03-25 浙江大学 一种可拆装油腔内芯的内冷活塞
CN105986923B (zh) * 2015-02-09 2019-02-19 强哲菲 一种双油腔钢活塞及其加工方法
JP6131977B2 (ja) * 2015-03-24 2017-05-24 マツダ株式会社 金属製基材上に樹脂含有皮膜を有するワークの加工方法
US20180355818A1 (en) * 2015-10-08 2018-12-13 Ks Kolbenschmidt Gmbh Piston Having Outer Thread
US10294887B2 (en) 2015-11-18 2019-05-21 Tenneco Inc. Piston providing for reduced heat loss using cooling media
EP3452712A1 (de) 2016-05-04 2019-03-13 KS Kolbenschmidt GmbH Kolben
RU2657401C1 (ru) * 2017-03-28 2018-06-13 Евгений Куртович Гауэр Тепловой двигатель
CN107755699A (zh) * 2017-11-03 2018-03-06 湖南江滨机器（集团）有限责任公司 一种钢活塞的制作方法

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE281030C (pt) *
GB204524A (en) * 1922-09-28 1923-10-04 Christopher Wortley Kerridge An improved design of piston for internal combustion engines
AT104630B (de) * 1924-12-23 1926-11-10 Hans Wunderlich Leichtkolben, insbesondere für Fahr- und Flugzeugkraftmaschinen od. dgl.
DE437423C (de) * 1925-12-25 1926-11-20 Hans Wunderlich Leichtkolben mit einem in die Laufbuechse eingesetzten Boden aus einem die Waerme gut leitenden Metall
US1723823A (en) * 1926-03-15 1929-08-06 Perfect Circle Co Piston
US1723187A (en) * 1927-01-04 1929-08-06 Frank J Lemieux Piston
DE547233C (de) * 1931-03-20 1932-04-02 Maschf Augsburg Nuernberg Ag Geteilter Kolben fuer doppeltwirkende Brennkraftmaschinen
US2398577A (en) * 1944-06-01 1946-04-16 George V Bratzel Piston for internal-combustion engines
US3136306A (en) * 1961-04-20 1964-06-09 Stevens Inst Technology Piston for a high performance internal combustion engine
FR1429327A (fr) * 1964-12-29 1966-02-25 Hispano Suiza Sa Perfectionnements apportés aux pistons pour moteurs à combustion interne
US3465651A (en) * 1968-02-13 1969-09-09 Alco Products Inc Composite pistons
DE2914456A1 (de) * 1979-04-10 1980-10-23 Schmidt Gmbh Karl Gebauter kolben fuer brennkraftmaschinen
JPS59500003A (ja) * 1981-12-28 1984-01-05 アルコ・パワ−・インコ−ポレ−テツド プレストレス複合ピストン
DE3222582C2 (de) * 1982-06-16 1985-10-03 Berchem & Schaberg Gmbh, 4650 Gelsenkirchen Verfahren zum Herstellen eines Kolbenbodenrohlings durch Schmieden für einen gebauten Kolben
DE3717767A1 (de) * 1987-05-26 1988-12-08 Mahle Gmbh Kuehlbarer tauchkolben fuer verbrennungsmotoren
DE3719469A1 (de) * 1987-06-11 1988-12-29 Mahle Gmbh Gebauter fluessigkeitsgekuehlter kolben fuer verbrennungsmotoren
US5029562A (en) * 1989-12-05 1991-07-09 Adiabatics, Inc. Hybrid piston for high temperature engine
IT1240526B (it) * 1990-07-31 1993-12-17 Borgo Nova S.P.A. Perfezionamento relativo a pistoni, in genere.
DE4131275C2 (de) * 1991-09-20 1998-04-09 Mahle Gmbh Gebauter flüssigkeitsgekühlter Kolben
CA2086133A1 (en) 1992-12-23 1994-06-24 Rex Edgell Piston for an alco series 251 diesel engine
US5279268A (en) * 1993-06-01 1994-01-18 Caterpillar Inc. Piston assembly with distributed loading and centrally fastened wrist pin
FI102559B1 (fi) * 1995-03-09 1998-12-31 Waertsilae Nsd Oy Ab Polttomoottorin mäntäyksikkö
DE19846496A1 (de) * 1998-10-09 2000-04-13 Mahle Gmbh Kolben für einen Verbrennungsmotor
DE19910582A1 (de) * 1999-03-10 2000-09-28 Mahle Gmbh Gebauter Kolben
CN2408307Y (zh) * 2000-01-18 2000-11-29 徐丁成 舌片密封组合式活塞
DE10042422C1 (de) * 2000-08-30 2002-04-04 Andreas Mozzi Geteilter Kolben und Kolbenbodenhaltefeder
DE10116084A1 (de) * 2001-03-30 2002-10-10 Mozzi Andreas Motor mit separatem Kolbenboden
US6491013B1 (en) * 2001-09-19 2002-12-10 Federal-Mogul World Wide, Inc. Closed gallery piston having reinforced oil hole
US6557514B1 (en) * 2001-10-23 2003-05-06 Federal-Mogul World Wide, Inc. Closed gallery monobloc piston having oil drainage groove

Also Published As

Publication number Publication date
CN1714232A (zh) 2005-12-28
KR101067577B1 (ko) 2011-09-27
RU2313679C2 (ru) 2007-12-27
DE50303408D1 (de) 2006-06-22
JP2006509152A (ja) 2006-03-16
DE10257022A1 (de) 2004-06-17
KR20050084180A (ko) 2005-08-26
JP4414894B2 (ja) 2010-02-10
HK1084169A1 (en) 2006-07-21
US6729291B1 (en) 2004-05-04
CN100339584C (zh) 2007-09-26
BR0317030A (pt) 2005-10-25
BR0310142B1 (pt) 2013-02-19
WO2004053319A1 (de) 2004-06-24
EP1583896A1 (de) 2005-10-12
RU2005121255A (ru) 2006-06-10

Similar Documents

Publication Publication Date Title
EP1583896B1 (de) Mehrteiliger gekühlter kolben für einen verbrennungsmotor
EP1828587B1 (de) Mehrteiliger, gekühlter kolben für einen verbrennungsmotor
EP1960653B1 (de) Zweiteiliger kolben für einen verbrennungsmotor
EP1920152B1 (de) Zweiteiliger kolben für einen verbrennungsmotor
EP2027381B1 (de) Mehrteiliger gekühlter kolben für einen verbrennungsmotor
EP1483493B1 (de) Mehrteiliger gekühlter kolben für einen verbrennungsmotor
EP1015785B1 (de) Nehmerzylindergehäuse aus kunststoff, in das eine führungshülse aus metall eingesetzt ist
EP2342441B1 (de) Kühlkanalkolben einer brennkraftmaschine mit einem verschlusselement, das den kühlkanal verschliesst
DE102007005268A1 (de) Mehrteiliger Stahlkolben für einen Verbrennungsmotor mit einem Kühlkanal
DE102005042003A1 (de) Gebauter, flüssigkeitsgekühlter Kolben
DE102007060472A1 (de) Zweiteiliger Kolben für einen Verbrennungsmotor
DE102004030218A1 (de) Gebauter Kolben für einen Verbrennungsmotor
DD252638A1 (de) Spritzoelgekuehlter eisenkolben fuer hubkolbenbrennkraftmaschinen
EP2189644B1 (de) Zweiteiliger Kolben für einen Verbrennungsmotor
EP1664514B1 (de) Kolben für einen verbrennungsmotor
DE10325914B4 (de) Kolben für einen Verbrennungsmotor
DE102005060548A1 (de) Zweiteiliger Kolben für einen Verbrennungsmotor
DE10216329A1 (de) Brennkraftmaschine
DE102007019931A1 (de) Verfahren zum Verschrauben zweier Metallteile
EP1660769B1 (de) Mehrteiliger kolben f r einen verbrennungsmotor
EP3741485B1 (de) Arbeitsgerät und stehbolzen für ein arbeitsgerät
DE102010041030A1 (de) Trägerrahmendichtung mit Fixier- und Ausrichtelementen
DE10306115B4 (de) Kolben für eine Brennkraftmaschine
DE102005031040A1 (de) Gewindeeinsatz
DE102004057559A1 (de) Kolben für einen Verbrennungsmotor

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: 20050701

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 IT LI LU MC NL PT RO SE SI SK TR

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 FR GB IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MESSMER, DIETER

Inventor name: SCHARP, RAINER

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 IT

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: 50303408

Country of ref document: DE

Date of ref document: 20060622

Kind code of ref document: P

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

Effective date: 20060628

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: 20070220

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20150924

Year of fee payment: 13

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

Ref country code: FR

Payment date: 20150924

Year of fee payment: 13

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

Ref country code: IT

Payment date: 20150930

Year of fee payment: 13

Ref country code: DE

Payment date: 20151001

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50303408

Country of ref document: DE

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

Effective date: 20160924

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170531

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: 20170401

Ref country code: FR

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

Effective date: 20160930

Ref country code: GB

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

Effective date: 20160924

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: 20160924