EP2019198A2 - Injecteur - Google Patents

Injecteur Download PDF

Info

Publication number
EP2019198A2
EP2019198A2 EP08104410A EP08104410A EP2019198A2 EP 2019198 A2 EP2019198 A2 EP 2019198A2 EP 08104410 A EP08104410 A EP 08104410A EP 08104410 A EP08104410 A EP 08104410A EP 2019198 A2 EP2019198 A2 EP 2019198A2
Authority
EP
European Patent Office
Prior art keywords
valve
chamber
control
channel
injector
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
EP08104410A
Other languages
German (de)
English (en)
Other versions
EP2019198B1 (fr
EP2019198A3 (fr
Inventor
Hans-Christoph Magel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2019198A2 publication Critical patent/EP2019198A2/fr
Publication of EP2019198A3 publication Critical patent/EP2019198A3/fr
Application granted granted Critical
Publication of EP2019198B1 publication Critical patent/EP2019198B1/fr
Not-in-force 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0045—Three-way valves
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0047—Four-way valves or valves with more than four ways
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion

Definitions

  • the invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine, in particular a common rail injector, according to the preamble of claim 1.
  • a common rail injector for injecting fuel in a combustion chamber of an internal combustion engine with a servo-controlled valve element known.
  • the valve element is assigned a control valve which can be actuated by means of a piezo actuator.
  • the control valve is in turn assigned to a control chamber which is delimited by an end face of the valve element.
  • the control chamber is hydraulically connected to a high-pressure region of the injector via an inlet throttle duct formed as an annular channel. In a first switching position of the control valve, a hydraulic connection between the control chamber and a low-pressure region of the injector is interrupted.
  • the flow cross sections of the inlet throttle channel and the outlet throttle channel are matched to one another such that in the second switching position of the control valve, a net outflow of fuel from the control chamber results, whereby the pressure in the control chamber decreases and as a result lifts the valve element from its valve seat.
  • the well-known injector has proven itself. However, there are still efforts to improve the switching times of injectors.
  • the invention begins, whose task is to propose an injector, with the further shortened switching times can be realized. In particular, faster closing times of the valve element should be realized.
  • the invention is based on the idea to provide a the control chamber to the valve chamber of the control valve vomyogllkanal, via the fuel, which flows in the first switching position of the control valve through the inlet channel into the valve chamber, can flow further into the control chamber, whereby a faster refilling of the Control chamber and thus a faster closing of the valve element is ensured.
  • the closing speed of the valve element is determined at least largely by the additional backfill channel.
  • the flow cross sections of the inlet channel and the backfill channel are preferably larger than the flow cross section of the outlet throttle channel and / or the flow cross section of the inlet throttle channel.
  • an embodiment is advantageous in which the at least one inlet channel and the at least one backfilling channel have a smaller throttle effect than the inlet throttle channel and / or the outlet throttle channel.
  • the fuel flowing into the valve chamber via the inlet channel - depending on the arrangement of the outlet throttle channel - in the first switching position of the control valve either exclusively via the rinse glycollkanal in the Control chamber flows or additionally via the outlet throttle channel.
  • a rinse can be realized by the additional provision of aruthellkanals a much faster refilling of the control chamber and thus an optimized closing behavior and optimized switching times of the injector.
  • the opening into the control chamber inlet throttle channel and the outlet throttle channel can be designed freely due to the provision of a separate scanyogllkanals on the Ventilelementö Stamms and therefore very small, whereby tax losses are minimized in the low pressure range.
  • an embodiment of the injector is dispensed with an inlet throttle channel from the high pressure area to the control room.
  • the construction is substantially simplified and the fuel loss quantity is reduced.
  • an inlet throttle channel is branched off for permanent connection of the control chamber to the high-pressure region of the inlet channel.
  • the inlet channel can open either from a fuel supply channel in the injector body or from a pressure chamber of the injector.
  • the inlet throttle channel as a radial bore in a sleeve bounding the control chamber or to arrange the inlet throttle channel as a defined annular gap between the valve element and such a sleeve.
  • a simple and cost-effective manufacturability of the injector can be realized when the control valve has a cooperating with a particular at least approximately flat valve seat surface control valve piston.
  • the inlet channel opens into this at least approximately flat valve seat surface on which rests the control valve piston in the second switching position.
  • the control valve piston and / or the valve seat surface is provided with a peripheral sealing edge (biting edge).
  • control valve as a 3/2-way valve
  • the backfill channel permanently connects the valve chamber with the control chamber
  • the backfill channel of the control valve must therefore not be switched, although such an embodiment is possible.
  • the control chamber is not hydraulically connected to the valve chamber flow restrictor channel provided, but this is the control valve, hydraulically seen, downstream and connects a hydraulically arranged behind the control valve area, in particular an intermediate chamber, with the low pressure area of the injector and thus with the injector return.
  • an embodiment is advantageous in which the flow cross-section of the inlet channel and / or the flow cross-section of the backfill channel is / are larger than the flow area of the outlet throttle channel and - when providing an inlet throttle channel - are greater than the flow cross-section of this inlet throttle channel, the Control chamber permanently connected to a high pressure area of the injector.
  • a piezoelectric actuator is provided for actuating the control valve.
  • the provision of a piezoelectric actuator allows an embodiment of the control valve as in the axial direction not pressure-balanced and thus structurally simple and inexpensive control valve.
  • Fig. 1 is shown very schematically the structure of an injector 1 designed as a common rail injector.
  • the injector 1 is supplied via a high-pressure supply line 2 from a fuel high-pressure accumulator 3 (rail) with fuel at high pressure (preferably higher than 2000 bar), in particular diesel oil or gasoline.
  • the fuel high-pressure accumulator 3 is supplied with fuel from a low-pressure reservoir 5 by a high-pressure pump 4 designed as a radial piston pump.
  • a low-pressure region 6 of the injector 1 is hydraulically connected via a return 7 to the reservoir 5.
  • the pressure in the low-pressure region 6 of the injector 1 is between about 0 and 100 bar, preferably between about 0 and 10 bar.
  • a fuel quantity to be explained later is discharged from a control chamber 8 and fed back to the high-pressure circuit via the high-pressure pump 4.
  • valve element 10 is arranged within a belonging to a high-pressure region of the injector 1 pressure chamber 9 a one-piece in this embodiment.
  • valve element 10 is arranged.
  • a multi-part, in particular two-part design of the valve element 10 with control rod and nozzle needle is conceivable.
  • the control chamber 8 Radially outward, the control chamber 8 is bounded by a sleeve 12, which is pressed by a closing spring 13 in the axial direction against a throttle plate 14.
  • the closing spring 13 is supported on a Peripheral collar 15 of the valve member 10 from and acts on this in the direction of its valve seat 16th
  • valve member 10 When the valve member 10 abuts the valve seat 16, i. is in a closed position, the fuel outlet from a nozzle hole arrangement 17 in the combustion chamber (not shown) of the internal combustion engine is locked. If, on the other hand, it is lifted off the valve seat 16, fuel can flow from the pressure chamber 9 via axial channels 18, which are formed by a polygonal contoured guide section 19 of the valve element 10, past the valve seat 16 to the nozzle hole arrangement 17 and from there into the combustion chamber (not shown).
  • a control valve 20 associated with the control chamber 8 (servo valve), more precisely a control piston 21 of the control valve 20, transferred from a first switching position shown in a second switching position in which the control piston 21 with a plane lower in the drawing plane (flat) contact surface 22 a first, flat (flat) valve seat surface 23 is moved.
  • the coupler space 25 serves to compensate for variations in the length of the actuator 24 caused by temperature fluctuations.
  • the control chamber 8 is hydraulically connected via an outlet throttle 26 with the low pressure region 6 of the injector 1.
  • Fuel flows via a first portion 27a of an inlet channel 27, which is branched off from the high-pressure supply line 2 (high-pressure region), via an inlet throttle channel 28, which is branched off from the inlet channel 27, into the control chamber 8. From there, the fuel flows via the outlet throttle channel 26 into a valve chamber 29 of the control valve 20 and from there to a hemispherical portion 30 of the control piston 21 passing into an intermediate chamber 31, in which a rod-shaped portion 32 of the control piston 21 is accommodated.
  • the fuel flows further into the reservoir 5.
  • the flow cross-sections of the inlet throttle channel 28 and the opening from the control chamber 8 into the valve chamber 29 outlet throttle 26 are coordinated such that a net Flow of Fuel from the control chamber 8 results, the fuel pressure in the control chamber 8 thus decreases and the valve element 10 lifts from its valve seat 16 and releases the fuel flow from the pressure chamber 9 (high pressure area) via the nozzle hole arrangement 17 in the combustion chamber of the internal combustion engine.
  • valve element 10 are moved to its valve seat 16, the control valve 20 and the control piston 21 from the second switching position in the in Fig. 1 shown moved first switching position in which the hemispherical portion 30 of the control piston 21 rests with its spherical portion on an annular second valve seat surface 33 which is opposite to the planar first valve seat surface 23.
  • the energization of the actuator 24 is interrupted, whereby the control piston 21, supported by a spring 34 in the plane of the drawing up to the second valve seat surface 33 of the control valve 20 is moved.
  • the flow cross-section of the grant circallkanals 35 is greater than the flow cross-section of the inlet throttle channel 28 and the flow area of the outlet throttle 26, which connects the control chamber 8 permanently hydraulically with the valve chamber 29.
  • the scaffoldyogllkanal 35 opens into the flat first valve seat surface 23 for the control piston 21 and is guided in the axial direction into the control chamber 8.
  • the scaffoldyogllkanal 35 is connected simultaneously with the inlet channel 27 by means of the control valve 20 and is open only in the first switching position. In the second switching position in which the hemispherical portion 30 rests with its planar contact surface 22 on the planar first valve seat surface 23, both the second portion 27b of the inlet channel 27 and the remindglallkanal 35 are locked. In this second switching position, only fuel flows via the first section 27a of the inlet channel 27 into the inlet throttle channel 28 and from there into the control chamber 8.
  • inlet throttle channel 28 is dispensed with the inlet throttle channel 28.
  • inlet throttle channel 28 can be realized, in which the inlet throttle channel 28 is not branched off from the inlet channel 27, but is guided, for example, directly from the pressure chamber 9 into the control chamber 8. It is also conceivable that the inlet channel 27 is not branched off from the high pressure supply line 2 within the injector 1, but from the pressure chamber 9.
  • FIG. 2 an alternative embodiment of an injector 1 is shown, which is addressed to avoid repetition only to the differences from the already described embodiment.
  • the injector 1 according to Fig. 2 has a designed as a 3/2-way valve control valve 20. It can be seen that the outlet throttle channel 26 in comparison to the embodiment according to Fig. 1 in an area, seen hydraulically, behind the valve seat surfaces 23, 33 of the control valve 20, that is arranged between the intermediate chamber 31 and the reservoir 5. The control chamber 8 is thus hydraulically connected exclusively via the rinse chamber 29.
  • the flow cross-section of the rinses 35 which in the embodiment according to Fig. 2 at a distance from the first planar valve seat surface 23 opens into the valve chamber 29 and discharges during the rinses, greater than the flow area of the outlet throttle 26 and the flow area of the inlet throttle channel 28, which can optionally be dispensed with.

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)
  • Fuel-Injection Apparatus (AREA)
EP20080104410 2007-07-24 2008-06-13 Injecteur Not-in-force EP2019198B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710034318 DE102007034318A1 (de) 2007-07-24 2007-07-24 Injektor

Publications (3)

Publication Number Publication Date
EP2019198A2 true EP2019198A2 (fr) 2009-01-28
EP2019198A3 EP2019198A3 (fr) 2009-09-30
EP2019198B1 EP2019198B1 (fr) 2014-04-16

Family

ID=39938437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080104410 Not-in-force EP2019198B1 (fr) 2007-07-24 2008-06-13 Injecteur

Country Status (2)

Country Link
EP (1) EP2019198B1 (fr)
DE (1) DE102007034318A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090444A1 (fr) * 2012-12-14 2014-06-19 Robert Bosch Gmbh Soupape d'injection de carburant
WO2014166651A1 (fr) * 2013-04-11 2014-10-16 Robert Bosch Gmbh Injecteur de carburant pour moteurs a combustion interne

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003004856A1 (fr) 2001-06-29 2003-01-16 Robert Bosch Gmbh Injecteur de carburant avec mise en forme de la courbe d'injection au moyen d'elements d'etranglement commandes
DE102004015744A1 (de) 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254749A1 (de) * 2002-11-23 2004-06-17 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung mit einem 3/3-Wege-Steuerventil zur Einspritzverlaufsformung
DE10335211A1 (de) * 2003-08-01 2005-02-17 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE10353169A1 (de) 2003-11-14 2005-06-16 Robert Bosch Gmbh Injektor zur Einspritzung von Kraftstoff in Brennräume von Brennkraftmaschinen, insbesondere piezogesteuerter Common-Rail-Injektor
DE102005010453A1 (de) * 2005-03-08 2006-09-14 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003004856A1 (fr) 2001-06-29 2003-01-16 Robert Bosch Gmbh Injecteur de carburant avec mise en forme de la courbe d'injection au moyen d'elements d'etranglement commandes
DE102004015744A1 (de) 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090444A1 (fr) * 2012-12-14 2014-06-19 Robert Bosch Gmbh Soupape d'injection de carburant
WO2014166651A1 (fr) * 2013-04-11 2014-10-16 Robert Bosch Gmbh Injecteur de carburant pour moteurs a combustion interne
CN105102804A (zh) * 2013-04-11 2015-11-25 罗伯特·博世有限公司 用于内燃机的燃料喷射阀
CN105102804B (zh) * 2013-04-11 2018-04-27 罗伯特·博世有限公司 用于内燃机的燃料喷射阀

Also Published As

Publication number Publication date
DE102007034318A1 (de) 2009-01-29
EP2019198B1 (fr) 2014-04-16
EP2019198A3 (fr) 2009-09-30

Similar Documents

Publication Publication Date Title
EP2171255B1 (fr) Étranglement au niveau du pointeau d'une soupape d'injection de carburant pour moteurs à combustion interne
EP1287254A1 (fr) Disposition d'injection pour un systeme d'injection de carburant a accumulateur dans un moteur a combustion interne
EP2206912B1 (fr) Injecteur de carburant
DE19823937B4 (de) Servoventil für Kraftstoffeinspritzventil
EP2011995B1 (fr) Injecteur doté d'un élément d'aération s'ouvrant vers l'extérieur
WO2009141182A1 (fr) Injecteur de carburant
EP2022975B1 (fr) Injecteur
EP2019198B1 (fr) Injecteur
EP2275666B1 (fr) Injecteur de carburant doté d'une soupape de distribution à pression compensée
EP2147206B1 (fr) Injecteur de carburant avec électrovanne
EP1541859B1 (fr) Injecteur
DE102007005382A1 (de) Leckagefreier Injektor
EP1961949B1 (fr) Injecteur doté d'une servo-vanne supplémentaire
DE102008001602B4 (de) Verfahren zum Ansteuern eines Steuerventils eines Kraftstoff-Injektors sowie Kraftstoff-Einspritzsystem
EP1483499A1 (fr) Systeme pour moduler en pression le comportement d'injection
EP1115968B1 (fr) Injecteur par accumulation de pression
DE10141221A1 (de) Druck-Hub-gesteuerter Injektor für Kraftstoffeinspritzsysteme
DE102006015745A1 (de) Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied
DE102007001365A1 (de) Injektor mit Steuer- und Schaltkammer
DE10015740C2 (de) Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine
DE102008002526A1 (de) Kraftstoff-Injektor
DE102008041561A1 (de) Kraftstoffinjektor sowie Auslegungsverfahren für einen Kraftstoffinjektor
DE102009000283A1 (de) Injektor zum Einspritzen von Kraftstoff
WO2008095743A1 (fr) Injecteur pour injecter du carburant dans des chambres de combustion de moteurs à combustion interne
EP2085604A1 (fr) Injecteur de carburant

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

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

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100330

AKX Designation fees paid

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

17Q First examination report despatched

Effective date: 20100629

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502008011605

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F02M0047020000

Ipc: F02M0055000000

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 55/00 20060101AFI20131022BHEP

Ipc: F02M 63/00 20060101ALI20131022BHEP

Ipc: F02M 47/02 20060101ALI20131022BHEP

Ipc: F02M 61/16 20060101ALI20131022BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140114

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 HR HU IE IS IT LI LT LU LV MC MT NL NO 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: AT

Ref legal event code: REF

Ref document number: 662738

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140515

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: 502008011605

Country of ref document: DE

Effective date: 20140528

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140416

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

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: 20140716

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: 20140717

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: 20140416

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: 20140416

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: 20140416

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: 20140716

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: 20140416

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: 20140816

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

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: 20140416

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: 20140416

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: 20140416

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: 20140416

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: 20140416

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

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: 20140818

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008011605

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: 20140416

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: 20140416

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: 20140416

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: 20140416

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: 20140613

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: 20140416

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: 20140416

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20150119

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

Effective date: 20140716

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

Effective date: 20140416

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: 20140630

Ref country code: CH

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

Effective date: 20140630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008011605

Country of ref document: DE

Effective date: 20150119

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: 20140716

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

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: 20140416

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 662738

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140613

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: 20140613

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: 20140416

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: PLFP

Year of fee payment: 9

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: 20140630

Ref country code: IE

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

Effective date: 20140613

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: 20080613

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: 20140416

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20190625

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: 20190822

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008011605

Country of ref document: DE

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: 20200630

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: 20210101