EP0916838B1 - Intake manifold for a V-type engine, in particular a V8-type engine - Google Patents

Intake manifold for a V-type engine, in particular a V8-type engine Download PDF

Info

Publication number
EP0916838B1
EP0916838B1 EP98118407A EP98118407A EP0916838B1 EP 0916838 B1 EP0916838 B1 EP 0916838B1 EP 98118407 A EP98118407 A EP 98118407A EP 98118407 A EP98118407 A EP 98118407A EP 0916838 B1 EP0916838 B1 EP 0916838B1
Authority
EP
European Patent Office
Prior art keywords
engine
chamber
exhaust gas
manifold
fresh air
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
EP98118407A
Other languages
German (de)
French (fr)
Other versions
EP0916838A3 (en
EP0916838A2 (en
Inventor
Rudolf Wimmer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0916838A2 publication Critical patent/EP0916838A2/en
Publication of EP0916838A3 publication Critical patent/EP0916838A3/en
Application granted granted Critical
Publication of EP0916838B1 publication Critical patent/EP0916838B1/en
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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1832—Number of cylinders eight
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/1045—Intake manifolds characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation

Definitions

  • the invention relates to a preamble of claim 1
  • Collector of a suction system for a V engine, in particular V8 engine the collectors arranged adjacent to the cylinder banks by means of inlet lines is equipped with two intake pipes and the collector also has one essentially centrally arranged, having an opening in a partition Chamber on the motor side and is divided into an overlying chamber remote from the motor.
  • a collector with the generic features is for example from DE-A 196 05 308 known.
  • the breakthrough depends on the company controllable flap assigned with the aim of controlled subdivision approximately equal partial volumes to achieve one of the predetermined firing order of the respective V-machine corresponding air supply to the inlet lines of the Cylinder in both cylinder banks.
  • this previously known collector the intake pipes upstream of their fresh air connections depending on the operating point Exhaust gas supplied, with a flap-controlled subdivision of the collector in two chambers with each supplied exhaust gas / fresh air mixture due to this the ignition sequence correctly connected to the chambers on all V-engine cylinder is distributed substantially uniformly.
  • the invention has for its object a generic collector in this way to design that in a structurally simple manner, an equalization of the exhaust gas / fresh air mixture is achieved on all cylinders of the V-engine.
  • V-engine With the cessation of ignition lines correctly connected to the controllable chambers the V-engine is advantageously a collector with a simple structure achieved.
  • Embodiment of the invention proposed that the partition is a central arranged opening has with at their respective distance from the mouths of all inlet lines in the motomahe suction chamber coordinated boundary. With this border arranged according to the invention can be promoted cylinder-specific distribution in an advantageous manner.
  • a relatively long mixing section for which in A further embodiment proposes that the mixing chamber remote from the motor connected intake pipes for a first mixing section of fresh air and correspondingly supplied exhaust gas upstream of the intake pipe flanges Have length.
  • a suction system, not shown, for a V8 engine, not shown, includes one Collector 100, the cylinder banks of the V8 engine, not shown, by means of intake lines 1 to 4 and 5 to 8 is arranged adjacent and with two intake pipes 9, 9 'is equipped. Furthermore, the collector 100 is essentially one centrally arranged, with an opening 10 having a partition 11 in a Chamber 12 on the engine side and divided into an overlying chamber 13 remote from the engine.
  • Collector 100 designed so that all inlet lines 1 to 4 and 5 to 8 with the motor-side chamber 12 are in medium-connection and that both intake pipes supplying an exhaust gas / fresh air mixture depending on the operating point 9, 9 'are connected to the chamber 13, which is remote from the motor, in a medium-carrying manner.
  • the partition 11 has a centrally arranged Opening 10 on with one at their respective distance from the mouths All inlet lines 1 to 4 and 5 to 8 in the suction chamber close to the engine 12 coordinated border 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Description

Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruches 1 auf einen Sammler einer Sauganlage für einen V-Motor, insbesondere V8-Motor, wobei der den Zylinderbänken benachbart mittels Einlaßleitungen angeordnete Sammler mit zwei Ansaugrohren ausgerüstet ist und der Sammler ferner über eine im wesentlichen mittig angeordnete, eine Durchbrechung aufweisende Trennwand in eine motorseitige Kammer und in eine darüberliegende motorferne Kammer unterteilt ist.The invention relates to a preamble of claim 1 Collector of a suction system for a V engine, in particular V8 engine, the collectors arranged adjacent to the cylinder banks by means of inlet lines is equipped with two intake pipes and the collector also has one essentially centrally arranged, having an opening in a partition Chamber on the motor side and is divided into an overlying chamber remote from the motor.

Einen ähnlichen Sammler zeigt die DE-A-32 17 064.DE-A-32 17 064 shows a similar collector.

Ein Sammler mit den gattungsgemäßen Merkmalen ist beispielsweise aus der DE-A 196 05 308 bekannt. Bei diesem Sammler ist der Durchbrechung eine betriebsabhängig steuerbare Klappe zugeordnet mit dem Ziel der gesteuerten Unterteilung in etwa gleich große Teilvolumen zur Erzielung einer der vorbestimmten Zündfolge der jeweiligen V-Maschine entsprechenden Luftzuführung zu Einlaßleitungen der Zylinder in beiden Zylinderbänken. Ferner ist bei diesem vorbekannten Sammler den Ansaugrohren stromauf ihrer Anschlüsse der Frischluft betriebspunktabhängig Abgas zugeführt, wobei mit einer klappengesteuerten Unterteilung des Sammlers in zwei Kammern mit jeweils zugeführtem Abgas-Frischluftgemisch dieses aufgrund der Zündfolge richtig an den Kammern angeschlossenen Einlaßleitungen auf sämtliche Zylinder des V-Motors im wesentlich gleichmäßig verteilt ist. A collector with the generic features is for example from DE-A 196 05 308 known. With this collector, the breakthrough depends on the company controllable flap assigned with the aim of controlled subdivision approximately equal partial volumes to achieve one of the predetermined firing order of the respective V-machine corresponding air supply to the inlet lines of the Cylinder in both cylinder banks. Furthermore, this previously known collector the intake pipes upstream of their fresh air connections depending on the operating point Exhaust gas supplied, with a flap-controlled subdivision of the collector in two chambers with each supplied exhaust gas / fresh air mixture due to this the ignition sequence correctly connected to the chambers on all V-engine cylinder is distributed substantially uniformly.

Nachteilig hierbei ist, daß eine derartige Steueranordnung allein zur Vergleichmäßigung des Abgas-Frischluftgemisches bau- und kostenaufwendig ist.The disadvantage here is that such a control arrangement alone for the purpose of uniformity of the exhaust gas / fresh air mixture is complex and expensive.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Sammler derart zu gestalten, daß in baulich einfacher Weise eine Vergleichmäßigung des Abgas-Frischluftgemisches auf sämtliche Zylinder des V-Motors erzielt ist.The invention has for its object a generic collector in this way to design that in a structurally simple manner, an equalization of the exhaust gas / fresh air mixture is achieved on all cylinders of the V-engine.

Diese Aufgabe ist mit dem Patentanspruch 1 dadurch gelöst, daß sämtliche Einlaßleitungen mit der motorseitigen Kammer in mediumsführender Verbindung stehen und daß beide betriebspunktabhängig ein Abgas-Frischluftgemisch zuführenden Ansaugrohre mit der motorfernen Kammer mediumsführend verbunden sind.This object is achieved with claim 1 in that all inlet lines communicate with the chamber on the motor side and that both supply an exhaust gas / fresh air mixture depending on the operating point Intake pipes are connected to the chamber remote from the engine.

Mit dem Fortfall zündfolgerichtig mit den steuerbaren Kammern verbundener Einlaßleitungen des V-Motors ist in vorteilhafter Weise ein im Aufbau einfacher Sammler erzielt.With the cessation of ignition lines correctly connected to the controllable chambers the V-engine is advantageously a collector with a simple structure achieved.

Zur Steigerung der Vergleichmäßigung des Abgas-Frischluftgemisches wird in weiterer Ausgestaltung der Erfindung vorgeschlagen, daß die Trennwand eine zentral angeordnete Durchbrechung aufweist mit einer in ihrer jeweiligen Entfernung von den Einmündungen sämtlicher Einlaßleitungen in die motomahe Absaug-Kammer abgestimmten Berandung. Mit dieser erfindungsgemäß angeordneten Berandung kann in vorteilhafter Weise eine zylinderindividuelle Verteilung gefördert werden.In order to increase the uniformity of the exhaust gas / fresh air mixture Embodiment of the invention proposed that the partition is a central arranged opening has with at their respective distance from the mouths of all inlet lines in the motomahe suction chamber coordinated boundary. With this border arranged according to the invention can be promoted cylinder-specific distribution in an advantageous manner.

Der Vergleichmäßigung förderlich ist ferner eine relativ lange Mischstrecke, wofür in weiterer Ausgestaltung vorgeschlagen wird, daß die mit der motorfernen Misch-Kammer verbundenen Ansaugrohre eine für eine erste Mischstrecke von Frischluft und stromauf der Ansaugrohr-Flansche gesteuert zugeführtem Abgas entsprechende Länge aufweisen. Mit dieser Ausgestaltung ist erreicht, daß ein relativ gut durchmischtes Abgas-Frischluftgemisch in die motorferne Kammer bzw. Misch-Kammer eintritt zur abschließenden Durchmischung. A relatively long mixing section, for which in A further embodiment proposes that the mixing chamber remote from the motor connected intake pipes for a first mixing section of fresh air and correspondingly supplied exhaust gas upstream of the intake pipe flanges Have length. With this configuration it is achieved that a relatively good mixed exhaust gas / fresh air mixture into the chamber or mixing chamber remote from the engine occurs for the final mixing.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Beispiels eines Sammlers beschrieben. Es zeigt

Figur 1
in perspektivischer Darstellung einen Sammler für einen V8-Motor und
Figur 2
den Sammler im Querschnitt gemäß der Linie II-II in Figur 1.
The invention is described with reference to an example of a collector shown in the drawing. It shows
Figure 1
in perspective a collector for a V8 engine and
Figure 2
the collector in cross section along the line II-II in Figure 1.

Eine nicht gezeigte Sauganlage für einen nicht dargestellten V8-Motor umfaßt einen Sammler 100, der den nicht gezeigten Zylinderbänken des V8-Motors mittels Einlaßleitungen 1 bis 4 und 5 bis 8 benachbart angeordnet ist und mit zwei Ansaugrohren 9, 9' ausgerüstet ist. Femer ist der Sammler 100 über eine im wesentlichen mittig angeordnete, eine Durchbrechung 10 aufweisende Trennwand 11 in eine motorseitige Kammer 12 und in einer darüberliegende motorferne Kammer 13 unterteilt.A suction system, not shown, for a V8 engine, not shown, includes one Collector 100, the cylinder banks of the V8 engine, not shown, by means of intake lines 1 to 4 and 5 to 8 is arranged adjacent and with two intake pipes 9, 9 'is equipped. Furthermore, the collector 100 is essentially one centrally arranged, with an opening 10 having a partition 11 in a Chamber 12 on the engine side and divided into an overlying chamber 13 remote from the engine.

Zur Erzielung einer gleichmäßigen Verteilung auf alle Zylinder 1 bis 8 von betriebspunktabhängig der Frischluft zugemischtem Abgas ist erfindungsgemäß der Sammler 100 derart gestaltet, daß sämtliche Einlaßleitungen 1 bis 4 und 5 bis 8 mit der motorseitigen Kammer 12 in mediumsführender Verbindung stehen und daß beide betriebspunktabhängig ein Abgas-Frischluftgemisch zuführenden Ansaugrohre 9, 9' mit der motorfernen Kammer 13 mediumsführend verbunden sind.To achieve an even distribution on all cylinders 1 to 8 depending on the operating point the fresh air admixed exhaust gas is the invention Collector 100 designed so that all inlet lines 1 to 4 and 5 to 8 with the motor-side chamber 12 are in medium-connection and that both intake pipes supplying an exhaust gas / fresh air mixture depending on the operating point 9, 9 'are connected to the chamber 13, which is remote from the motor, in a medium-carrying manner.

Zur Steigerung der Vergleichmäßigung des Abgas-Frischluftgemisches auf alle Einlaßleitungen 1 bis 4 und 5 bis 8 weist die Trennwand 11 eine zentral angeordnete Durchbrechung 10 auf mit einer in ihrer jeweiligen Entfernung von den Einmündungen sämtlicher Einlaßleitungen 1 bis 4 und 5 bis 8 in die motornahe Absaug-Kammer 12 abgestimmten Berandung 14.To increase the uniformity of the exhaust gas / fresh air mixture on all inlet lines 1 to 4 and 5 to 8, the partition 11 has a centrally arranged Opening 10 on with one at their respective distance from the mouths All inlet lines 1 to 4 and 5 to 8 in the suction chamber close to the engine 12 coordinated border 14.

Zur Erzielung eines gut durchmischten Abgas-Frischluftgemisches weisen die mit der motorfernen Misch-Kammer 13 verbundenen Ansaugrohre 9, 9' eine für eine erste Mischstrecke von Frischluft und stromauf der Ansaugrohr-Flansche 15, 15' gesteuert zugeführtem Abgas entsprechende Länge auf, wobei beide Ansaugrohre 9, 9' stirnseitig in die Misch-Kammer 13 einmünden.To achieve a well-mixed exhaust gas / fresh air mixture, the of the mixing chamber 13 remote from the engine, intake pipes 9, 9 'one for one first mixing section of fresh air and upstream of the intake pipe flanges 15, 15 ' Controlled exhaust gas supplied corresponding length, both intake pipes 9, 9 'open into the mixing chamber 13 at the end.

Claims (3)

  1. A manifold in an intake system for a V-engine, particularly a V8-engine,
    wherein the manifold (100) disposed adjoining the cylinder rows via inlet lines (1 to 4 and 5 to 8) is equipped with two intake pipes (9, 9'),
    the manifold (100) is divided by a substantially centrally disposed partition (11) formed with an aperture (10) into a first chamber (12) on the engine side and a second or upper chamber (13) remote from the engine,
    all the inlet lines (1 to 4, 5 to 8) are connected and supply medium to the chamber (12) on the engine side and
    both intake pipes (9, 9') are connected for conveying medium to the chamber (13) remote from the engine,
    characterised in that
    both intake pipes (9, 9') convey a mixture of exhaust gas and fresh air depending on the operating point.
  2. A manifold according to claim 1, characterised in that the aperture (10) is centrally disposed and has a boundary (14) adjusted with regard to its respective distance from the mouths of all inlet lines (1 to 4, 5 to 8) to the chamber (12) on the engine side.
  3. A manifold according to claim 1 or 2, characterised in that the intake pipes (9, 9') connected to the chamber (13) remote from the engine have a length corresponding to a first section for mixing fresh air with exhaust gas supplied upstream in controlled manner from intake-pipe flanges (15, 15').
EP98118407A 1997-11-14 1998-09-29 Intake manifold for a V-type engine, in particular a V8-type engine Expired - Lifetime EP0916838B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19750419A DE19750419A1 (en) 1997-11-14 1997-11-14 Suction system collector for a V engine, especially a V8 engine
DE19750419 1997-11-14

Publications (3)

Publication Number Publication Date
EP0916838A2 EP0916838A2 (en) 1999-05-19
EP0916838A3 EP0916838A3 (en) 1999-07-21
EP0916838B1 true EP0916838B1 (en) 2001-11-21

Family

ID=7848689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118407A Expired - Lifetime EP0916838B1 (en) 1997-11-14 1998-09-29 Intake manifold for a V-type engine, in particular a V8-type engine

Country Status (2)

Country Link
EP (1) EP0916838B1 (en)
DE (2) DE19750419A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009019048A1 (en) 2009-04-28 2010-11-04 Daimler Ag Air diffuser for use in internal-combustion engine of V-engine, has central section and inlet section, at which section of cylinder line branching from central section is formed

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111937A (en) * 1961-10-17 1963-11-26 Int Harvester Co Intake manifold construction for compression ignition type internal combustion engines
JPS6056260B2 (en) * 1981-05-20 1985-12-09 本田技研工業株式会社 Intake manifold for internal combustion engines
DE19605308A1 (en) 1996-02-14 1997-08-21 Bayerische Motoren Werke Ag Internal combustion engine with suction system with a collector that can be connected to opposite cylinder banks, in particular V 8 engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009019048A1 (en) 2009-04-28 2010-11-04 Daimler Ag Air diffuser for use in internal-combustion engine of V-engine, has central section and inlet section, at which section of cylinder line branching from central section is formed

Also Published As

Publication number Publication date
DE59802699D1 (en) 2002-02-21
EP0916838A3 (en) 1999-07-21
EP0916838A2 (en) 1999-05-19
DE19750419A1 (en) 1999-05-20

Similar Documents

Publication Publication Date Title
DE69502432T2 (en) Internal combustion engine
EP0158008B1 (en) Air inlet pipe arrangement for a multicylinder internal combustion engine
DE102014100739B4 (en) PARTLY INTEGRATED EXHAUST GASKET
DE3139309C2 (en) Intake system for an internal combustion engine
DE10043532B4 (en) Air filter device for a multi-cylinder internal combustion engine
DE69712611T2 (en) METHOD AND DEVICE FOR DISTRIBUTING VAPORS OR GASES TO EACH CYLINDER OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
EP0270784B1 (en) Intake arrangement for a multi-cylinder internal combustion engine
DE19708288B4 (en) Internal combustion engine
DE3836723C1 (en)
DE4315129C2 (en) Air intake system of an internal combustion engine
DE3107898C2 (en) Internal combustion engine with an exhaust gas recirculation duct
DE3711859A1 (en) Multicylinder reciprocating piston internal combustion engine
DE4330566A1 (en) Air intake system of an internal combustion engine
EP0916838B1 (en) Intake manifold for a V-type engine, in particular a V8-type engine
DE3208478C2 (en) Exhaust manifold for a four-cylinder in-line engine
DE2507977C3 (en) Intake manifold for internal combustion engines with an evaporation zone
DE19940617A1 (en) Inlet manifold for internal combustion engine has inlet chamber linked to parallel distribution chamber by profiled slot
DE69913256T2 (en) Internal combustion engine
DE10233219B4 (en) Inlet system of a V-engine
EP0974748A2 (en) Reciprocating piston engine with exhaust gas recirculation
DE2616835C2 (en) Intake line system for a multi-cylinder internal combustion engine
EP0113441B2 (en) Air inlet arrangement for internal-combustion engines, particularly fuel injection combustion engines
DE69410074T2 (en) Arrangement of a fuel injection engine with vented injectors
DE10321323B3 (en) Intake system for an internal combustion engine with at least two rows of cylinder banks
DE10125903B4 (en) Suction device of a multi-cylinder internal combustion engine

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): DE FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990803

AKX Designation fees paid

Free format text: DE FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010411

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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

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

Effective date: 20011122

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59802699

Country of ref document: DE

Date of ref document: 20020221

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
REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

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: 18

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

Ref country code: FR

Payment date: 20150928

Year of fee payment: 18

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

Ref country code: IT

Payment date: 20150924

Year of fee payment: 18

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

Ref country code: DE

Payment date: 20150919

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59802699

Country of ref document: DE

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

Effective date: 20160929

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: FR

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

Effective date: 20160930

Ref country code: DE

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

Effective date: 20170401

Ref country code: GB

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

Effective date: 20160929

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: 20160929