EP2761163B1 - Fuel injection pump arrangement and method for operating an internal combustion engine - Google Patents

Fuel injection pump arrangement and method for operating an internal combustion engine Download PDF

Info

Publication number
EP2761163B1
EP2761163B1 EP12767029.7A EP12767029A EP2761163B1 EP 2761163 B1 EP2761163 B1 EP 2761163B1 EP 12767029 A EP12767029 A EP 12767029A EP 2761163 B1 EP2761163 B1 EP 2761163B1
Authority
EP
European Patent Office
Prior art keywords
fuel
plunger
hydraulic fluid
engine
cam
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.)
Active
Application number
EP12767029.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2761163A1 (en
Inventor
Esa Ylivainio
Matti Koivunen
Tom Nordman
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.)
Wartsila Finland Oy
Original Assignee
Wartsila Finland Oy
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 Wartsila Finland Oy filed Critical Wartsila Finland Oy
Publication of EP2761163A1 publication Critical patent/EP2761163A1/en
Application granted granted Critical
Publication of EP2761163B1 publication Critical patent/EP2761163B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/447—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/02—Pumps peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/025—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by a single piston
    • F02M59/027—Unit-pumps, i.e. single piston and cylinder pump-units, e.g. for cooperating with a camshaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0435—Arrangements for disconnecting the pistons from the actuated cam

Definitions

  • the present invention relates to a fuel injection pump arrangement for a dual-fuel internal combustion engine according to the preamble of claim 1.
  • the invention also concerns a method for operating a dual-fuel internal combustion engine that comprises a cam-driven fuel injection pump for each cylinder of the engine, as defined in the preamble of the other independent claim.
  • each cylinder of the engine is provided with an own fuel injection pump that is used for pressurizing fuel when the engine is operated in a liquid fuel mode.
  • Each fuel injection pump is driven by a rotating cam that moves one or more plungers inside the pump.
  • the engine can utilize either an Otto combustion process or a Diesel combustion process.
  • a common rail system is used for injecting a small amount of liquid pilot fuel into the cylinder or a pre-chamber. Since a common rail system is used for injecting the liquid pilot fuel, the separate fuel injection pumps of each cylinder are not needed in the gaseous fuel mode.
  • This kind of engines can be used, for instance, in offshore applications and ships or at power plants.
  • the engines are operated mostly on gaseous fuel, and the liquid fuel mode is only used when the gaseous fuel is not available. Therefore, the fuel injection pumps may be run most of the time unnecessarily. Due to mechanical losses, this increases fuel consumption of the engine and also leads in wear of the fuel injection pumps.
  • Examples of high-pressure pumps suitable for pumping fuel are available from GB 602 199 A and US 2 612 842 A .
  • An object of the present invention is to provide an improved fuel injection pump arrangement for a dual-fuel internal combustion engine.
  • the characterizing features of the arrangement according to the present invention are given in the characterizing part of claim 1.
  • Another object of the invention is to provide an improved method for operating a dual-fuel internal combustion engine, which engine comprises a cam-driven fuel injection pump for each cylinder of the engine.
  • liquid fuel is pressurized by at least one reciprocating plunger that is in mechanical connection with a rotating cam.
  • the method is characterized by the characterizing part of the other independent claim.
  • the fuel injection pump arrangement comprises a pump body, at least one fuel chamber that is arranged inside the pump body, at least one reciprocating plunger that protrudes into the fuel chamber for pressurizing liquid fuel in the fuel chamber, a plunger moving mechanism for establishing mechanical connection between the plunger and a rotating cam that drives the fuel injection pump, and means for breaking the mechanical connection between the plunger and the cam when the fuel injection pump is not used for pressurizing fuel.
  • the mechanical connection between the plunger of each fuel injection pump and the respective cam is broken for preventing moving of the plunger when the engine is operated on gaseous fuel.
  • the fuel injection pump can be taken out of use when the engine is operated on gaseous fuel.
  • fuel economy of the engine can be improved and the life cycle of the fuel injection pumps can be extended.
  • the arrangement comprises a hydraulic fluid chamber and a piston that is arranged in the hydraulic fluid chamber for moving the plunger away from the cam.
  • the plunger moving mechanism comprises a cam follower unit and a push rod that is arranged between the plunger and the cam follower unit, and the hydraulic fluid chamber is arranged around the push rod.
  • the piston is a sleeve-like part that is arranged around the push rod.
  • the hydraulic fluid is lube oil of the engine.
  • the hydraulic fluid is fuel that is used in the engine.
  • the arrangement comprises a hydraulic pump for pressurizing the hydraulic fluid.
  • the plunger in the method is moved away from the cam by introducing hydraulic fluid into a hydraulic fluid chamber between the end of the chamber and a piston that is in mechanical connection with the plunger.
  • the hydraulic fluid is pressurized by a hydraulic pump.
  • the hydraulic pump is operated when the engine is operated on gaseous fuel and pressure in the hydraulic fluid chamber is below a predetermined level.
  • Fig. 1 shows a fuel injection pump arrangement according to an embodiment of the invention.
  • FIG 1 a fuel injection pump arrangement according to an embodiment of the present invention.
  • the engine where the arrangement is used is a large dual-fuel internal combustion engine, such as a ship engine or an engine that is used for producing electricity at a power plant.
  • the engine can be operated both on liquid fuel, such as light or heavy fuel oil, and gaseous fuel, such as natural gas or biogas.
  • the engine is provided with one fuel injection pump for each cylinder of the engine.
  • the fuel injection pumps are used when the engine is operated on liquid fuel. With a separate fuel injection pump for each cylinder of the engine, the amount of the injected fuel and the injection timing can be individually adjusted in each cylinder.
  • the fuel injection pump comprises a pump body 1. Inside the pump body 1, there is a fuel chamber 10, into which liquid fuel can be introduced through fuel inlets 3 from a fuel channel 23.
  • the engine is provided with a fuel supply pump for introducing the liquid fuel into the fuel chamber 10 at a relatively low pressure.
  • a reciprocating plunger 2 protrudes into the fuel chamber 10 for pressurizing the fuel that is introduced into the fuel chamber 10.
  • Each fuel injection pump could also be provided with two fuel chambers 10 and two plungers 2.
  • the fuel injection pump is driven by a cam that is attached to a rotating camshaft (not shown).
  • the fuel injection pump arrangement comprises a plunger moving mechanism 5, 11 that establishes mechanical connection between the cam and the plunger 2.
  • the plunger moving mechanism 5, 11 transforms the rotating movement of the cam into the reciprocating movement of the plunger 2.
  • the plunger moving mechanism comprises a cam follower unit 11 and a push rod 5 that is arranged between the cam follower unit 11 and the plunger 2.
  • the cam follower unit 11 comprises a cam follower wheel 12 that follows the surface of the rotating cam.
  • the push rod 5 transmits the movement of the cam follower unit 11 to the plunger 2.
  • a spring 8 that is arranged around the plunger 2 pushes the plunger 2 and the push rod 5 towards the cam follower unit 11 and the cam.
  • the camshaft end of the spring 8 is supported against a spring support plate 9 that is attached to the plunger 2.
  • the bottom part of the fuel injection pump is provided with a second spring 13 that pushes the cam follower unit 11 against the cam of the camshaft.
  • the pressurized fuel is supplied to the cylinder of the engine through a fuel outlet (not shown in Fig. 1 ) that is arranged in the upper part of the fuel chamber 10.
  • each fuel injection pump arrangement is provided with means 4, 6, 7 for breaking the mechanical connection between the cam and the plunger 2 when the fuel injection pump is not used for pressurizing fuel. The reciprocating movement of the plungers 2 can thus be prevented and the fuel injection pumps can be taken out of use when the engine is operated on gaseous fuel. This reduces the fuel consumption of the engine and wear of the fuel injection pumps.
  • the means for breaking the mechanical connection between the plunger 2 and the cam comprise a hydraulic fluid chamber 6, a piston 4, and means, i.e. a fluid supply line 7, for introducing hydraulic fluid into the hydraulic fluid chamber 6.
  • the hydraulic fluid chamber 6 is arranged below the plunger 2 and surrounds the push rod 5.
  • the piston 4 is a sleeve-like part that is arranged in the hydraulic fluid chamber 6 around the push rod 5.
  • hydraulic fluid can be introduced into the hydraulic fluid chamber 6 between the piston 4 and the camshaft end of the chamber 6.
  • the hydraulic fluid can be, for instance, lube oil of the engine, or fuel that is used in the engine.
  • the piston 4 When the hydraulic fluid is introduced into the chamber 6 at a sufficiently high pressure, the piston 4 is moved together with the plunger 2 away from the cam. The pressure needs to be high enough to overcome the force that is created by the spring 8 that pushes the plunger 2 towards the cam.
  • the inner and outer surfaces of the piston 4 are provided with seals 21, 22 for preventing leakage between the push rod 5 and the piston 4 and between the wall of the hydraulic fluid chamber 6 and the piston 4.
  • a seal 20 is arranged also between the bottom aperture of the hydraulic fluid chamber 6 and the push rod 5.
  • the fluid supply line 7 can be used for releasing the hydraulic fluid from the hydraulic fluid chamber 6, as in the embodiment of figure 1 , or the chamber 6 can be provided with a separate outlet.
  • the engine is provided with a separate hydraulic pump 14 for pressurizing the hydraulic fluid.
  • a valve 16 is arranged in the fluid supply line 7 between the hydraulic pump 14 and the hydraulic fluid chamber 6. When the valve 16 is in the position shown in the figure, the hydraulic pump 14 can be used for supplying hydraulic fluid from a tank 17 into the hydraulic fluid chamber 6.
  • a check valve 15 is arranged between the hydraulic pump 14 and the valve 16 for preventing backflow to the pump 14. Therefore, the hydraulic pump 14 does not need to be operated continuously, but it can be switched on when the pressure in the fluid supply line 7 drops below a certain predetermined limit. By switching the valve 16 into a second position, hydraulic fluid can be released from the hydraulic fluid chamber 6 back into the tank 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
EP12767029.7A 2011-09-30 2012-09-13 Fuel injection pump arrangement and method for operating an internal combustion engine Active EP2761163B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20115954A FI124006B (fi) 2011-09-30 2011-09-30 Polttoaineenruiskutuspumppujärjestely ja menetelmä polttomoottorin käyttämiseksi
PCT/FI2012/050886 WO2013045756A1 (en) 2011-09-30 2012-09-13 Fuel injection pump arrangement and method for operating an internal combustion engine

Publications (2)

Publication Number Publication Date
EP2761163A1 EP2761163A1 (en) 2014-08-06
EP2761163B1 true EP2761163B1 (en) 2015-07-29

Family

ID=44718859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12767029.7A Active EP2761163B1 (en) 2011-09-30 2012-09-13 Fuel injection pump arrangement and method for operating an internal combustion engine

Country Status (5)

Country Link
EP (1) EP2761163B1 (zh)
KR (1) KR101791732B1 (zh)
CN (1) CN104755744B (zh)
FI (1) FI124006B (zh)
WO (1) WO2013045756A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4163494A4 (en) * 2020-06-03 2024-04-03 Hyun Dai Heavy Ind Co Ltd GAS SUPPLY PUMP FOR DUAL FUEL SHIP ENGINE

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013207393A1 (de) * 2013-04-24 2014-10-30 Robert Bosch Gmbh Kolbenpumpe, insbesondere Hochdruckpumpe für ein Kraftstoffsystem für eine Brennkraftmaschine
DE102015219036A1 (de) * 2015-10-01 2017-04-06 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer Hochdruckpumpe für einen Brennkraftmotor
JP6837327B2 (ja) * 2016-12-13 2021-03-03 三菱重工業株式会社 燃料噴射ポンプ、燃料噴射装置、内燃機関
KR102216489B1 (ko) * 2017-03-29 2021-02-16 바르실라 핀랜드 오이 내연 피스톤 기관에 연료를 공급하기 위한 연료 펌프
CN109340001B (zh) * 2018-12-13 2021-03-12 单进才 发动机用双燃料混合伺服装置
CN114704410B (zh) * 2022-04-27 2023-02-03 中船动力研究院有限公司 一种双燃料增压喷射装置
KR102616805B1 (ko) 2023-05-08 2023-12-21 주식회사 이케이전력 IoT기반 부식 사전 감지 수배전반 예방보전 시스템

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB602199A (en) * 1944-10-28 1948-05-21 Georges Pauget Improvements in high pressure radial piston pumps for liquids
US2612842A (en) * 1946-11-13 1952-10-07 Worthington Corp Fuel injection pump
GB825136A (en) * 1956-07-09 1959-12-09 Napier & Son Ltd Timing of fuel injection pumps
JPS6030466A (ja) * 1983-07-29 1985-02-16 Toyota Motor Corp 複燃料送給ポンプ
JPH04370364A (ja) * 1991-06-17 1992-12-22 Mitsubishi Motors Corp 燃料噴射ポンプ
JP2952746B2 (ja) * 1994-07-05 1999-09-27 株式会社クボタ ディーゼルエンジンの燃料噴射装置
DE19531873C1 (de) * 1995-08-30 1996-11-07 Daimler Benz Ag Kraftstoffhochdruckpumpe für eine Brennkraftmaschine
DE10359974A1 (de) * 2003-12-18 2007-10-18 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine mit einem kraftstoffgetriebenen Verbrennungsmotor
PL2143916T3 (pl) * 2008-07-07 2012-08-31 Impco Tech B V Dwupaliwowy układ wtryskowy i pojazd silnikowy zawierający taki układ wtryskowy
JP2011026971A (ja) * 2009-07-22 2011-02-10 Honda Motor Co Ltd 高圧燃料ポンプ及びこれを備える内燃機関

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4163494A4 (en) * 2020-06-03 2024-04-03 Hyun Dai Heavy Ind Co Ltd GAS SUPPLY PUMP FOR DUAL FUEL SHIP ENGINE

Also Published As

Publication number Publication date
CN104755744A (zh) 2015-07-01
KR101791732B1 (ko) 2017-10-30
EP2761163A1 (en) 2014-08-06
WO2013045756A1 (en) 2013-04-04
FI20115954A0 (fi) 2011-09-30
FI20115954A (fi) 2013-03-31
FI124006B (fi) 2014-01-31
KR20140069080A (ko) 2014-06-09
CN104755744B (zh) 2017-03-29

Similar Documents

Publication Publication Date Title
EP2761163B1 (en) Fuel injection pump arrangement and method for operating an internal combustion engine
US9605590B2 (en) Crosshead engine
EP3098417B1 (en) Engine
KR102042308B1 (ko) 가스 작동식 내연 피스톤 엔진용 연료 시스템
KR20130136495A (ko) 연료 분사 유닛, 그 연료 분사 유닛과 내연 엔진의 작동 방법
CN103782021A (zh) 用于双燃料共轨系统的燃料喷射器
US7584747B1 (en) Cam assisted common rail fuel system and engine using same
JP2016023642A (ja) 始動空気システムを備えた自己着火式大型低速ターボ過給式２ストローク内燃エンジン
US20160138489A1 (en) High-pressure pump and fuel injection system having a high-pressure pump
CN103038495B (zh) 低泄漏凸轮辅助的共轨燃料系统、燃料喷射器及其操作方法
US9562497B2 (en) Engine system having piezo actuated gas injector
CN106523228B (zh) 一种低功率柴油发电机燃油喷射电控单体泵
CN107850010B (zh) 具有进气歧管的多柱塞低温泵
EP2984327B1 (en) A dual fuel injection unit and dual fuel feeding arrangement
CN112805469B (zh) 注水泵
JP2013151933A (ja) 燃料噴射補助装置及び燃料噴射補助装置を備える燃料噴射ポンプ
EP3734030B1 (en) Multi-lubricant cylinder lubrication system for a large two-stroke internal combustion engine
US11746734B2 (en) Electronic unit injector shuttle valve
CN102628416A (zh) 共轨燃料系统的压力恢复系统、燃料喷射器及其操作方法
US11105306B2 (en) Pump having pilot-actuated admission valve
CN115342017A (zh) 一种特殊的新型开关阀直控型高压油泵
JP2019132212A (ja) 燃料ポンプ駆動構造
CN201461115U (zh) 一种4108柴油机气缸套
JP2018096331A (ja) ピストンポンプ
JP2017172501A (ja) 液圧駆動ピストン装置及びクロスヘッド式内燃機関

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: 20140220

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150317

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 739508

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012009213

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 739508

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150729

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

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: 20150729

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: 20150729

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: 20151030

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: 20150729

Ref country code: NO

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: 20151029

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

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: 20151129

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: 20151130

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: 20150729

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: 20150729

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: 20150729

Ref country code: HR

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: 20150729

Ref country code: RS

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: 20150729

Ref country code: AT

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: 20150729

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

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: 20150729

Ref country code: LU

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: 20150913

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: 20150729

Ref country code: MC

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: 20150729

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: 20150729

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: 20150729

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012009213

Country of ref document: DE

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: 20150729

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

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160531

26N No opposition filed

Effective date: 20160502

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: 20150930

Ref country code: IE

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

Effective date: 20150913

Ref country code: CH

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

Effective date: 20150930

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: 20150930

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: 20150729

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

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

Ref country code: MT

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: 20150729

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

Ref country code: SM

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: 20150729

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; INVALID AB INITIO

Effective date: 20120913

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: 20150729

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

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: 20150729

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: 20150729

Ref country code: MK

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: 20150729

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

Ref country code: AL

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: 20150729

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

Ref country code: NL

Payment date: 20230920

Year of fee payment: 12

Ref country code: GB

Payment date: 20230920

Year of fee payment: 12

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

Ref country code: DE

Payment date: 20230920

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20230927

Year of fee payment: 12