EP1298313A2 - Kraftstoffspeicher für eine Kraftstoffeinspritzvorrichtung - Google Patents
Kraftstoffspeicher für eine Kraftstoffeinspritzvorrichtung Download PDFInfo
- Publication number
- EP1298313A2 EP1298313A2 EP02021901A EP02021901A EP1298313A2 EP 1298313 A2 EP1298313 A2 EP 1298313A2 EP 02021901 A EP02021901 A EP 02021901A EP 02021901 A EP02021901 A EP 02021901A EP 1298313 A2 EP1298313 A2 EP 1298313A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing surface
- fuel
- sealing
- bore
- fuel accumulator
- 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.)
- Withdrawn
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
Definitions
- the present invention relates to a fuel accumulator for storing fuel for an injector an internal combustion engine.
- Fuel storage systems are used in fuel injection systems such as e.g. Common rail systems used as a rail to under one to provide high pressure fuel, so that the pressure is approximately constant during an injection process remains. During operation are from the fuel storage to meet pressure requirements of over 1500 bar.
- the fuel storage at a higher pressure than that used in operation Working pressure tested. This is done in the fuel storage existing holes, i.e. a longitudinal bore and sealed several cross holes and under high pressure set. The holes are sealed at the Sealing surface, which in the assembled state also serves as a sealing surface for the lines or others arranged at the bores Built-in parts. Because of the higher test pressure However, it can be used for the leak test of the fuel accumulator damage due to deformation or formation from undesirable burrs on the sealing surfaces. Farther There may be a peeling on the fuel accumulator provided coating, e.g. a zinc coating.
- a fuel accumulator is known from EP-0 866 221 A1, which between the fuel storage and a line has conically formed sealing surface. However, leave the conical sealing surface explained above Problems with the leak test of the fuel accumulator do not prevent.
- the fuel storage according to the invention for storing Fuel for an injector of an internal combustion engine has several holes, more precisely a longitudinal hole and at least one cross hole.
- the holes point first sealing surfaces, in particular for sealing from line connection points.
- a second sealing surface on at least one bore educated is according to the invention. This second sealing surface becomes a seal used in a leak test of the fuel accumulator.
- the leak test no longer on the actual one Place of the sealing seat of the fuel accumulator in the assembled Status. If damage or deformation or Burrs on the second sealing surface during the leak test occur, these are adverse effects on the first sealing surface for the actual sealing of the Fuel storage without meaning.
- Farther can also according to the invention to careful positioning a sealing element to avoid damage to the Sealing surface can be dispensed with, which leads to pressure testing necessary time can be further reduced.
- first sealing surface and second sealing surface also a common, i.e. related larger sealing surface can be understood where a first area for sealing during the Leak test is used and a second area which is not used during the leak test, as the actual sealing surface for sealing the fuel accumulator is used in the assembled state.
- the first sealing surface from the second sealing surface spaced. This can surely prevent that Damage occurring during the leak test no influence on the second sealing surface have the first sealing surface.
- a common, coherent Sealing surface with two sealing areas could e.g. by virtue of from unfavorable additions of tolerances certain overlap areas occur, so that then a tightness of the fuel reservoir in the assembled state no longer can be fully guaranteed.
- the second sealing surface is arranged in the bore.
- this enables a simple leak test be made by simply drilling the hole accordingly shaped closure element for the leak test is closed.
- this can be used for Leak test for any damage or No deformation on the outside of the fuel accumulator occur so that no corrosion on damaged areas can occur or after the final assembly none from the outside visible damage is present as the second sealing surface lies within the bore.
- the second sealing surface is preferably on the fuel accumulator by a defined radius at the transition area between the outside of the fuel reservoir and the bore.
- a defined radius By using a defined radius the second sealing surface is laid in the bore, because the contact or sealing area between a closure element and always the radius formed on the bore starting from the outside of the fuel storage in the Hole is arranged offset.
- Can be used as a closure element for example a ball or a tapered closure element such as. a cone can be used. Through the Use of the defined radius can thus be prevented that is on the second sealing surface at the transition area at the end of the hole towards the outside of the fuel accumulator Burr forms, which in the subsequent operation of the fuel accumulator could fall off and cause pollution in the injector could lead.
- the second sealing surface is not at a 90 ° angle between the outside of the fuel accumulator and the bore to provide, but instead a predetermined radius is provided.
- the radius is particularly preferably ⁇ 0.3 mm.
- the radius is very particularly preferably the same 0.6 mm. It should be noted that the second sealing surface thereby shifting further into the hole, the larger the radius is chosen for a given bore diameter becomes.
- a diameter is preferably the bore diameter of 3 mm.
- the second sealing surface by a tapered Surface formed in the hole is the second sealing surface by a tapered Surface formed in the hole.
- the tapered surface is preferably designed as a cone.
- the cone advantageously has an angle of 60 ° on.
- the second sealing surface outside the first Sealing surface is the second sealing surface outside the first Sealing surface arranged. This can be done after the leak test necessary deburring or cleaning (washing) of the fuel storage can be dispensed with, as the existing contamination due to the leak test (e.g. by peeling coatings or slightly falling Ridges) outside the actual first sealing surface of the Fuel storage are arranged and therefore not in that Interior of the fuel accumulator or the injection device can reach.
- the first and the are particularly preferred second sealing surface as annular sealing surfaces in plan view formed which on the outside of the fuel accumulator are arranged around the holes. If the Fuel reservoir is essentially tubular the two sealing surfaces run around the cross holes each in accordance with the curvature of the fuel accumulator.
- a fuel accumulator which has several holes Has sealing surfaces, at least a leak test performed a bore on a second sealing surface.
- test pressure is preferred in the method according to the invention of approx. 2000 bar.
- a leak test is thus carried out in the method according to the invention not in the place of the final sealing seat between the fuel accumulator and an adjacent one Component (e.g. a line, a pressure sensor, a pump or a closure element), but on an additional one Sealing surface.
- an adjacent one Component e.g. a line, a pressure sensor, a pump or a closure element
- the Fuel reservoir 1 comprises a longitudinal bore, not shown, in which several cross holes 2 open, each to an injector of the injector via a Line (not shown) or to a high pressure pump or other components.
- the line is on the fuel storage 1 attached and a seal between the line and the fuel accumulator 1 takes place on a first sealing surface 3.
- the first sealing surface 3 is annular arranged around the transverse bore 2. For reasons of simplification only one transverse bore 2 is shown in FIG.
- the fuel accumulator 1 according to the first Embodiment a second sealing surface 4, which for Leak test of the fuel accumulator 1 before its final Montage is used.
- the second sealing surface 4 is formed on a radius R, which is a transition between the outside of the fuel accumulator 1 and the cross hole 2 defined (see FIG. 1).
- a closure element 5 in the form of a ball is used, which has a diameter D2 of 5 mm.
- the diameter D1 of the transverse bore 2 is 3 mm and the radius R is 0.3 mm.
- the second sealing surface 4 is located on a level E, which is slightly from the outside of the fuel storage 1 is offset inwards. This is the second sealing surface 4 arranged within the transverse bore 2, so that after the final assembly of the fuel accumulator 1 the second sealing surface 4 is not visible from the outside.
- a fuel accumulator is described below with reference to FIG according to a second embodiment of the present Invention described. Same or functionally the same Parts have the same reference numerals as in the first Designated embodiment.
- the fuel accumulator according to the second embodiment corresponds essentially to the first exemplary embodiment, however, in comparison with the first embodiment a plane E on which the second sealing surface 4 is arranged is further away from the outside of the fuel accumulator 1 is arranged.
- the second sealing surface 4 is more precise further arranged within the transverse bore 2.
- the Radius R between the outside of the fuel accumulator 1 and the transverse bore 2 chosen with 0.6 mm, the diameter D1 of the cross hole is 3 mm and the diameter D2 of the spherical closure element is 5 mm.
- the cross hole 2 is formed by a ridge Pressing the closure element 5 onto the second sealing surface 4 during the leak test or peeling off Coating prevented.
- the first embodiment becomes the first sealing surface 3 during the leak test of fuel storage 1 is not used. Otherwise corresponds the second embodiment the first embodiment, so that on the description given there can be referred.
- Figure 3 is a fuel accumulator according to a third Embodiment shown, the same or functional same parts with the same reference numerals as in the first two embodiments are designated.
- a conical region 6 is arranged.
- the more conical Area 6 is at an angle of 60 ° with respect to the Formed outside of the fuel accumulator.
- the conical Area at the end of the through hole 2 die second sealing surface 4 arranged within the transverse bore 2. This can certainly prevent any Damage occurring during the leak test procedure on the outside of the fuel storage 1 nearby the actual first sealing surface 3 can occur. Thereby can prevent damage to the first sealing surface 3 become.
- the second sealing surface 4 is relative arranged close to the outside of the fuel accumulator 1.
- Figure 4 is a fuel accumulator according to a fourth Embodiment of the present invention shown.
- the same or functionally the same parts are again with the same reference numerals as in the previous embodiments designated.
- the fourth embodiment essentially corresponds to that third embodiment, being instead of a spherical Closure element a conical closure element 5 is used.
- the angle is conical Closure element approx. 55 °.
- the fourth embodiment corresponds to the third Embodiment, so that on the description given there can be referred.
- FIG. 5 shows a fuel accumulator according to a fifth Embodiment of the present invention shown.
- the same or functionally the same parts are again with the same reference numerals as in the previous embodiments designated.
- the fifth embodiment both the first sealing surface 3 and the second sealing surface 4 arranged on the outside of the fuel accumulator 1. More precisely, the first sealing surface 3 is adjacent to the transverse bore 2 arranged and the second sealing surface 4 is outside the first sealing surface 3 is arranged around the first sealing surface 3. The first and the second sealing surface thus run 3 and 4 according to the curvature on the outer circumference of the Fuel storage 1 around the transverse bore 2. Since the second sealing surface 4, which is used for the leak test is arranged outside the first sealing surface 3 is possibly on the second sealing surface 4 through the Leakage test produces burrs or flaking particles outside the first sealing surface 3. If the fuel accumulator 1 according to the fifth embodiment is installed, these possible causes of Contamination outside the first sealing surface 3, on which the actual seal in the assembled state of the Fuel storage takes place. So contamination of the Fuel storage or other components of the injector can be prevented safely.
- a leak test of the Fuel storage 1 according to the fifth embodiment used closure element is essentially cup-shaped is, its edge area to the surface design, in particular curvature, the fuel storage adjusted is.
- the present invention thus relates to a fuel accumulator for storing fuel for an injection device, where the fuel accumulator 1 has several holes 2, on each of which a first sealing surface 3 for sealing the fuel accumulator is formed to the outside. Furthermore, at least one bore 2 has a second one Formed sealing surface 4, which is used to seal the fuel accumulator during a leak test or an autofrettage (Internal hardening of the fuel accumulator with several thousand bar) is used. Furthermore, the present concerns Invention a method for leak testing a Fuel storage.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Figur 1
- eine schematische Teilschnittsansicht eines Kraftstoffspeichers gemäß einem ersten Ausführungsbeispiel der vorliegenden Erfindung;
- Figur 2
- eine schematische Teilschnittsansicht eines Kraftstoffspeichers gemäß einem zweiten Ausführungsbeispiel der vorliegenden Erfindung;
- Figur 3
- eine schematische Teilschnittsansicht eines Kraftstoffspeichers gemäß einem dritten Ausführungsbeispiel der vorliegenden Erfindung;
- Figur 4
- eine schematische Teilschnittsansicht eines Kraftstoffspeichers gemäß einem vierten Ausführungsbeispiel der vorliegenden Erfindung und
- Figur 5
- eine schematische Teilschnittsansicht eines Kraftstoffspeichers gemäß einem fünften Ausführungsbeispiel der vorliegenden Erfindung.
Claims (11)
- Kraftstoffspeicher zur Speicherung von Kraftstoff für eine Einspritzvorrichtung einer Brennkraftmaschine, wobei der Kraftstoffspeicher mehrere Bohrungen (2) aufweist, an denen jeweils eine erste Dichtfläche (3), insbesondere für eine Abdichtung von Leitungsanschlussstellen oder zusätzlichen Bauteilen, ausgebildet ist, dadurch gekennzeichnet, dass an wenigstens einer Bohrung (2) eine zweite Dichtfläche (4) ausgebildet ist, welche zur Abdichtung bei einer Dichtheitsprüfung und/oder einer Autofrettage des Kraftstoffspeichers (1) verwendbar ist.
- Kraftstoffspeicher nach Anspruch 1, dadurch gekennzeichnet, dass die erste Dichtfläche (3) von der zweiten Dichtfläche (4) beabstandet ist.
- Kraftstoffspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Dichtfläche (4) in der Bohrung (2) angeordnet ist.
- Kraftstoffspeicher nach Anspruch 3, dadurch gekennzeichnet, dass die zweite Dichtfläche (4) an einem definierten Radius (R) zwischen der Bohrung (2) und einer Außenseite des Kraftstoffspeichers angeordnet ist.
- Kraftstoffspeicher nach Anspruch 4, dadurch gekennzeichnet, dass der Radius (R) ≥ 0,3 mm, insbesondere gleich 0,6 mm, ist.
- Kraftstoffspeicher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zweite Dichtfläche (4) an einem Kegel ausgebildet ist, welcher an einem zur Außenseite des Kraftstoffspeichers gerichteten Ende der Bohrung (2) angeordnet ist.
- Kraftstoffspeicher nach Anspruch 6, dadurch gekennzeichnet, dass der Kegel einen Winkel von 60° aufweist.
- Kraftstoffspeicher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die erste Dichtfläche (3) und die zweite Dichtfläche (4) an der Außenseite des Kraftstoffspeichers ringförmig um die Bohrung (2) herum angeordnet sind.
- Kraftstoffspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Dichtfläche (4) außerhalb der ersten Dichtfläche (3) angeordnet ist.
- Verfahren zur Prüfung der Dichtheit eines Kraftstoffspeichers (1) für eine Einspritzvorrichtung eines Verbrennungsmotors, wobei der Kraftstoffspeicher mehrere Bohrungen (2) aufweist, an denen jeweils eine erste Dichtfläche (3), insbesondere für eine Abdichtung von Leitungsanschlussstellen oder weiteren Bauteilen, ausgebildet ist, dadurch gekennzeichnet, dass die Dichtheitsprüfung des Kraftstoffspeichers an einer zweiten Dichtfläche (4) erfolgt, welche benachbart zur ersten Dichtfläche (3) angeordnet sind.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass der Druck bei der Dichtheitsprüfung ca. 2000 bar beträgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10148518 | 2001-10-01 | ||
DE10148518 | 2001-10-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1298313A2 true EP1298313A2 (de) | 2003-04-02 |
EP1298313A3 EP1298313A3 (de) | 2004-12-01 |
Family
ID=7701068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02021901A Withdrawn EP1298313A3 (de) | 2001-10-01 | 2002-09-27 | Kraftstoffspeicher für eine Kraftstoffeinspritzvorrichtung |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1298313A3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008061538A1 (de) * | 2006-11-20 | 2008-05-29 | L'orange Gmbh | Dichtungsanordnung in einem hydraulischen hochdrucksystem |
US8381402B2 (en) | 2009-12-01 | 2013-02-26 | Caterpillar Inc. | Fuel injector tip autofrettage process |
US8590815B2 (en) | 2010-06-24 | 2013-11-26 | Caterpillar Inc. | Fuel injector tip with compressive residual stress |
US9133802B2 (en) | 2013-05-09 | 2015-09-15 | Caterpillar Inc. | Device for sealing orifices on nozzle of fuel injector for autofrettage process |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120084A (en) * | 1989-09-27 | 1992-06-09 | Usui Kokusai Sangyo Kaisha Limited | Connection structure for branching connector in high-pressure fuel rail |
DE19531743C1 (de) * | 1995-08-29 | 1996-12-05 | Guido Jurgen | Abdrückvorrichtung |
EP0866221A1 (de) * | 1997-03-18 | 1998-09-23 | Poppe & Potthoff GmbH & Co. | Kraftstoffverteiler für einen Dieselmotor |
WO2001006116A1 (de) * | 1999-07-15 | 2001-01-25 | Robert Bosch Gmbh | Anschlussstutzen und gehäuse für ein kraftstoffeinspritzsystem mit kraftstoffhochdruckspeicher |
-
2002
- 2002-09-27 EP EP02021901A patent/EP1298313A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120084A (en) * | 1989-09-27 | 1992-06-09 | Usui Kokusai Sangyo Kaisha Limited | Connection structure for branching connector in high-pressure fuel rail |
DE19531743C1 (de) * | 1995-08-29 | 1996-12-05 | Guido Jurgen | Abdrückvorrichtung |
EP0866221A1 (de) * | 1997-03-18 | 1998-09-23 | Poppe & Potthoff GmbH & Co. | Kraftstoffverteiler für einen Dieselmotor |
WO2001006116A1 (de) * | 1999-07-15 | 2001-01-25 | Robert Bosch Gmbh | Anschlussstutzen und gehäuse für ein kraftstoffeinspritzsystem mit kraftstoffhochdruckspeicher |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008061538A1 (de) * | 2006-11-20 | 2008-05-29 | L'orange Gmbh | Dichtungsanordnung in einem hydraulischen hochdrucksystem |
US8381402B2 (en) | 2009-12-01 | 2013-02-26 | Caterpillar Inc. | Fuel injector tip autofrettage process |
US8590815B2 (en) | 2010-06-24 | 2013-11-26 | Caterpillar Inc. | Fuel injector tip with compressive residual stress |
US9133802B2 (en) | 2013-05-09 | 2015-09-15 | Caterpillar Inc. | Device for sealing orifices on nozzle of fuel injector for autofrettage process |
US9649732B2 (en) | 2013-05-09 | 2017-05-16 | Caterpillar Inc. | Device for sealing orifices on nozzle of fuel injector for autofrettage process |
Also Published As
Publication number | Publication date |
---|---|
EP1298313A3 (de) | 2004-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69207042T2 (de) | Verbindung für Hochdruckleitungen | |
DE19713989A1 (de) | Fitting für ein Kunststoffrohr | |
EP3298263B1 (de) | Kraftstoffhochdruckpumpe | |
WO2012098087A1 (de) | Kraftstoffeinspritzventil mit verbessertem hochdruckanschluss | |
EP1454057B1 (de) | Ventil zum steuern von flüssigkeiten | |
EP1298313A2 (de) | Kraftstoffspeicher für eine Kraftstoffeinspritzvorrichtung | |
DE102008008435B4 (de) | Federbelastetes Ventil und Verfahren zur Einstellung einer Ventilbaugruppe eines federbelasteten Ventils | |
DE112007002684T5 (de) | Vorrichtung zum Verbinden einer Hochdruckleitung mit einem Hochdruckspeicher | |
EP1117923A1 (de) | Kraftstoffhochdruckspeicher | |
DE102015206937B3 (de) | Kolbenmontagezange | |
DE102020216176A1 (de) | Verfahren zur Montage einer Welle, insbesondere einer Nockenwelle, in einer Lagergasse einer Brennkraftmaschine | |
DE10013488B4 (de) | Kupplung, insbesondere Schnellkupplung zum Verbinden von Medienleitungen | |
DE19742002C2 (de) | Dichtungsanordnung | |
DE10029322A1 (de) | Verfahren zur Finishbearbeitung eines Ventilsitzes für Kugelventile, insbes. für Brennstoffeinspritzventile in Brennkraftmaschinen | |
DE10042777A1 (de) | Anschlußeinrichtung zur Überführung eines Fluids aus einem Druckgefäß und Verfahren zu ihrer Verwendung | |
DE102023000408B3 (de) | Verbindungsanordnung zum Verbinden einer Kraftstoffleitung mit einem lnjektor einer Brennkraftmaschine | |
EP1399668A1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen | |
WO2019052721A1 (de) | Kraftstoffinjektoranordnung und ein verfahren zum einführen eines kraftstoffinjektors in eine aufnahmeöffnung eines zylinderkopfs | |
DE102016122817A1 (de) | Injektoraufnahme und Verbindungsanordnung eines Kraftstoffeinspritzsystems | |
WO2024132484A1 (de) | Kupplungsteil für eine hydraulikkupplung | |
DE202005018060U1 (de) | Anschlussarmatur einer Prüfeinrichtung für mit Schlaucharmaturen konfektionierte Schlauchleitungen | |
DE102017128570B4 (de) | Common-Rail-System, Brennkraftmaschine | |
DE102008040777A1 (de) | Schweißnaht, Bauteil, Bauteilanordnung sowie Verfahren zum Herstellen einer Schweißnaht | |
EP3098917B1 (de) | Vorrichtung zur befestigung einer leitung | |
DE19963720A1 (de) | Common-Rail-System |
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 IE IT LI LU MC NL PT SE SK TR Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: 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 BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7F 02M 65/00 B Ipc: 7F 02M 55/02 B Ipc: 7F 02M 55/00 A |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20050602 |