EP1008733B1 - Ölgekühlter Zylinderkopf - Google Patents
Ölgekühlter Zylinderkopf Download PDFInfo
- Publication number
- EP1008733B1 EP1008733B1 EP99123616A EP99123616A EP1008733B1 EP 1008733 B1 EP1008733 B1 EP 1008733B1 EP 99123616 A EP99123616 A EP 99123616A EP 99123616 A EP99123616 A EP 99123616A EP 1008733 B1 EP1008733 B1 EP 1008733B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cooling
- internal combustion
- combustion engine
- head
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 100
- 238000002485 combustion reaction Methods 0.000 claims description 29
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 75
- 239000007789 gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P2003/006—Liquid cooling the liquid being oil
-
- 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
- F02B2075/1816—Number of cylinders four
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/34—Lateral camshaft position
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- F02B75/20—Multi-cylinder engines with cylinders all in one line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F2001/104—Cylinders; Cylinder heads having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
Definitions
- the invention relates to an internal combustion engine with a cylinder crankcase, the at least two in row construction trained and covered by a likewise designed in row cylinder head Cylinder, in each of which a via a connecting rod to an in the crankcase hinged crankshaft hinged piston is movable, wherein the internal combustion engine cooling oil spaces, a Lubricating system and having an oil pump in fluid communication stand, with each cylinder a cylinder cooling oil space and each Cylinder head has at least one cylinder head cooling oil space, wherein on the one hand, the individual cylinder cooling oil chambers and the individual cylinder head cooling oil chambers a row of cylinders connected in series with each other and on the other hand, the cylinder cooling oil chambers and the Cylinder head cooling oil chambers as a whole also connected in series and wherein a return line from the end-side cylinder head cooling oil space back along the cylinder head row towards the input side cylinder head cooling oil space is arranged and wherein in the return line per cylinder a connecting hole with a Stegbo
- Such an internal combustion engine is known from DE 43 25 141 A1.
- This internal combustion engine is oil-cooled in the specified manner.
- the cooling system is designed so that at a maximum provided power the internal combustion engine, especially in the field Piston, cylinder and cylinder head, reliably cooled.
- the invention is based on the object, the cooling system such further developing oil-cooled internal combustion engine in the form that an even more effective cooling, in particular of the cylinder head, also with further increase in performance of the internal combustion engine is guaranteed.
- This object is achieved in that a second return line at least approximately parallel to the first return line arranged along the cylinder head row and with the end-side Cylinder head cooling oil space is connected.
- the second return line runs along the range of valve stem seals of the exhaust valves and in the immediate vicinity of a vent hole, which Oily air for integrated in the cylinder head cover crankcase ventilation box leads without further junction or diversion a channel.
- the thermal highly loaded area of the exhaust valves especially in the area the valve stem seals, is intensively cooled and on the other hand Coking of the oily crankcase leaking gases is prevented.
- the cylinder cooling oil chambers as a spectacle-shaped cooling chambers in the one cylinder circumferentially adjacent Cylinder head area formed. This ensures a low-flow flow around the individual cylinders, wherein in that the flow cross sections of adjacent cylinders the spectacle-shaped cold rooms are on different sides, an intense and good cooling of the vulnerable area between two cylinders is guaranteed.
- the return lines in the cylinder head are at least approximated arranged parallel to each other and in the crankcase or the oil pan of the internal combustion engine merged.
- both lines for example in a single drilling operation.
- the outlet channel by a in Compound with the surrounding air gap from the cylinder head floor largely decoupled and by the likewise spectacle-shaped Cylinder head cooling oil space below the air gap is a far-reaching Separation of the heat flow from the inner to the outer area of the cylinder head floor takes place.
- this middle Cooling channel can also be a highly targeted cooling thermally high claimed parts of the cylinder head.
- this mean cooling channel meandering trained and runs from an engine end to the opposite engine end.
- This middle one Cooling channel is made by appropriately trained cores during formed the casting of the cylinder head.
- the middle cooling channel encloses the individual inlet channels largely and tangent on the other hand, the exhaust ducts are as little as possible.
- the middle cooling channel in turn close to the injector holes passed, so that the injection valve again intensively cooled becomes.
- a descending Opening present, which the middle cooling channel with the Oil space of the crankcase connects.
- the cylinder head 1 according to FIG. 1 comes with a 4-cylinder self-igniting Internal combustion engine for use.
- the cylinder head designed as a block cylinder head and is made in particular Cast gray cast iron.
- the cylinder head can also for other cylinder numbers, such as 2- or 3-cylinder designed and cast from other materials, such as light metal be.
- the internal combustion engine as a series engine or be designed as a V-engine.
- the cylinder head continues as a 2-valve cylinder head with a Inlet and an exhaust valve 2 per cylinder provided.
- the intake valves and exhaust valves 2 of one in the crankcase the internal combustion engine mounted camshaft respectively own pushrods and rocker arms 3.
- the rocker arms 3 are on a shaft mounted in the cylinder head 1 and with conventional valve lash adjusters 4 provided.
- the bearings of the rocker arm 3 on the shaft are lubricated by oil holes, not shown.
- the valves are - as shown in the exhaust valve 2 - via valve springs 5, located on the cylinder head 1 and on with the valves Supported valve spring plates, in the cylinder head 1 established.
- the valve stems of the valves are via valve stem seals 7 sealed against the cylinder head 1.
- Valve stem seals 7 prevent the ingress of lubricating oil in the gap between the valve stem and the surrounding Drilling.
- Right and left along the valve shafts run in the Area near the valve stem seals 7 along the cylinder bank a first return line 8a and a second return line 8b for the introduced into the cylinder head 1 cooling oil.
- the valve stem seals 7 thermally opposite to itself by hot exhaust gases in the exhaust ports 9 heating cylinder head areas, which between the valve stem seals 7 and the outlet channels 9 to be isolated.
- the outlet channels 9 through with the Surroundings related air gaps 10 largely of decoupled from the cylinder head floor 11.
- the crankcase In the cylinder head floor are otherwise the cylinder head cooling oil chambers 12 as annular or spectacle-shaped recesses embedded in themselves in extension of each adjacent Zylinderkühtölsammlung extend.
- the crankcase is referred to as so-called Open deck running.
- the cylinder head cooling oil spaces 12a, 12b, 12c, 12d are in the context of casting capabilities deep in the Cylinder head floor 11 inserted. This can be a relatively high Cooling oil amount through the cylinder head cooling oil chambers 12a, 12b, 12c, 12d be encouraged.
- Fig. 1 is further an oil-containing Kurbelraumleckgase leading vent hole 24 to recognize. By the running next to it Bore 8b prevents coking of the oily gases.
- FIG. 2 shows the cooling diagram of a 4-cylinder cylinder head 1 shown schematically.
- the ring-shaped cylinder head cooling oil spaces 12a, 12b, 12c, 12d have an input side cylinder head cooling oil space 12a, in which the cooling oil from the underlying Cylinder cooling oil chamber via transfer openings 13 in the cylinder head gasket entry.
- Part of the incoming cooling oil is (by the size or depth of the flow connections favors) directly along the cylinder head cooling oil spaces 12a, 12b, 12c to to the end-side cylinder head cooling oil space 12d and there via a Connecting line 14 passed into the second return line 8b.
- These Return line 8b runs along the cylinder head as previously stated 1 and flows into the input-side cylinder head area in a drain line 15b.
- This drain line 15b carries the cooling oil through the cylinder head 1 back into the crankcase, where they are in the crankcase with a drain line 15a coincides.
- This drain line 15a leads the coming of the return line 8a Cooling oil back.
- the return line 8a is per cylinder over Bar holes 16a, 16b, 16c, 16d and connection holes 17a, 17b, 17c, 17d with the respective cylinder head cooling oil spaces 12a, 12b, 12c, 12d connected.
- here is the end cylinder head cooling oil space 12d via a connecting line 14a with the return line 8a connected.
- FIG. 3 the basic structure of Cooling system similar to that shown in FIG. 2.
- too Cooling oil via transfer openings 13 from the underlying cylinder cooling oil space into the cylinder head cooling oil space 12a to get out of this along the adjoining cylinder head cooling oil chambers 12b, 12c to be passed to the end-side cylinder head cooling oil space 12d.
- From this passes the cooling oil via transfers 20 and a branch channel 20 ' on the "cold" injection side of the here also interrupted Cylinder head cooling oil chamber 12d in the middle cooling channel 19.
- This middle cooling channel 19 is formed meander-shaped and extends to the input side cylinder head side. The middle one encloses thereby Cooling channel largely the inlet channels and is also close to the Injector holes passed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Description
- Fig. 1:
- einen Querschnitt durch einen Zylinderkopf mit einer ersten und einer zweiten Rückflussleitung,
- Fig. 2:
- schematisch den Kühlölfluss durch den Zylinderkopf und
- Fig. 3:
- eine Variante des Kühlölflusses durch den Zylinderkopf mit einem weiteren mittleren Kühlkanal.
Claims (10)
- Brennkraftmaschine mit einem Zylinderkurbelgehäuse, das mindestens zwei in Reihenbauart ausgebildete und von einem ebenfalls in Reihenbauart ausgebildeten Zylinderkopf abgedeckte Zylinder aufweist, in denen je ein über ein Pleuel an einer in dem Zylinderkurbelgehäuse gelagerten Kurbelwelle angelenkter Kolben bewegbar ist, wobei die Brennkraftmaschine Kühlölräume, ein Schmiersystem und eine Ölpumpe aufweist, die in Strömungsverbindung stehen, wobei jeder Zylinder einen Zylinderkühlölraum und jeder Zylinderkopf zumindest einen Zylinderkopfkühlölraum aufweist, wobei einerseits die einzelnen Zylinderkühlölräume und die einzelnen Zylinderkopfkühlölräume-einer Zylinderreihe untereinander in Reihe geschaltet sind und andererseits die Zylinderkühlölräume sowie die Zylinderkopfkühlölräume als Ganzes ebenfalls in Reihe geschaltet sind und wobei eine Rückflussleitung von dem endseitigen Zylinderkopfkühlölraum zurück entlang der Zylinderkopfreihe in Richtung zu dem eingangsseitigen Zylinderkopfkühlölraum angeordnet ist und wobei in die Rückflussleitung je Zylinder eine Verbindungsbohrung mit einer Stegbohrung einmündet,
dadurch gekennzeichnet, dass eine zweite Rückflussleitung (8b) zumindest angenähert parallel zu der ersten Rückflussleitung (8a) entlang der Zylinderkopfreihe angeordnet und mit dem endseitigen Zylinderkopfkühlölraum (12d) verbunden ist. - Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet, dass die zweite Rückflussleitung (8b) entlang des Bereiches der Ventilschaftdichtungen (12) der Auslassventile (2) ohne weitere Einmündung oder Abzweigung eines Kanals verläuft. - Brennkraftmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Zylinderkühlölräume als brillenförmige Kühlräume in dem einem Zylinder umfangsmäßig benachbarten Zylinderkopfbereich ausgebildet sind. - Brennkraftmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass die Rückflussleitungen (8a, 8b) im Zylinderkopf (1) zumindest angenähert parallel zueinander angeordnet sind und im Kurbelgehäuse oder der Ölwanne der Brennkraftmaschine zusammengeführt sind. - Brennkraftmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass der Auslasskanal (9) durch einen in Verbindung mit der Umgebung stehenden Luftspalt (10) von dem Zylinderkopfboden (11) weitgehend entkoppelt ist und durch den brillenförmigen Zylinderkopfkühlölraum (12a, 12b, 12c, 12d) unterhalb des Luftspaltes (10) eine weitgehende Abtrennung des Wärmeflusses von dem inneren in den äußeren Bereich des Zylinderkopfbodens (11) erfolgt. - Brennkraftmaschine nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass zwischen dem brillenförmigen Zylinderkopfkühlölraum (12a, 12b, 12c, 12d) und den Rückflussleitungen (8a, 8b) ein mittlerer Kühlkanal (19) in dem Zylinderkopf (1) angeordnet ist. - Brennkraftmaschine nach Anspruch 6,
dadurch gekennzeichnet, dass der mittlere Kühlkanal (19) von der einer Brennkraftmaschinenendseite meanderförmig zu der gegenüberliegenden Brennkraftmaschinenendseite verläuft. - Brennkraftmaschine nach einem der Ansprüche 6 oder 7,
dadurch gekennzeichnet, dass der mittlere Kühlkanal (19) die Einlasskanäle (21) weitgehend umschließt. - Brennkraftmaschine nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet, dass der mittlere Kühlkanal (19) dicht an den Einspritzdüsenbohrungen (22) vorbeigeführt ist. - Brennkraftmaschine nach einem der Ansprüche 6 bis 9,
dadurch gekennzeichnet, dass auf einer Brennkraftmaschinenendseite eine absteigende Öffnung (23) den mittleren Kühlkanal (19) mit dem Ölraum des Kurbelgehäuses verbindet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19857458 | 1998-12-12 | ||
| DE19857458A DE19857458A1 (de) | 1998-12-12 | 1998-12-12 | Ölgekühlter Zylinderkopf |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1008733A2 EP1008733A2 (de) | 2000-06-14 |
| EP1008733A3 EP1008733A3 (de) | 2000-12-06 |
| EP1008733B1 true EP1008733B1 (de) | 2003-08-13 |
Family
ID=7890923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99123616A Expired - Lifetime EP1008733B1 (de) | 1998-12-12 | 1999-11-26 | Ölgekühlter Zylinderkopf |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1008733B1 (de) |
| DE (2) | DE19857458A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10339653A1 (de) * | 2003-08-28 | 2005-03-24 | Deutz Ag | Gießkernminimierter Zylinderkopf |
| AT505591B8 (de) | 2008-10-02 | 2010-04-15 | Avl List Gmbh | Brennkraftmaschine mit einem zylinderkopf |
| JP6205730B2 (ja) | 2013-01-21 | 2017-10-04 | スズキ株式会社 | シリンダヘッド |
| FR3044355B1 (fr) * | 2015-12-01 | 2017-12-08 | Peugeot Citroen Automobiles Sa | Ensemble pour moteur thermique comportant un support moteur integrant une fonction de degazage de culasse |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2054431C3 (de) * | 1970-11-05 | 1974-03-14 | Daimler Benz Ag | Mehrzylindrige flüssigkeitsgekühlte Brennkraftmaschine mit Zwangsumlaufkühlung |
| US4131093A (en) * | 1973-06-21 | 1978-12-26 | National Research Development Corporation | Internal combustion engines |
| JPS5352969Y2 (de) * | 1975-04-25 | 1978-12-18 | ||
| AT389565B (de) * | 1980-06-16 | 1989-12-27 | List Hans | Wassergekuehlte mehrzylinder-brennkraftmaschine |
| FR2660694B1 (fr) * | 1990-04-05 | 1992-07-31 | Peugeot | Moteur a combustion interne comprenant un circuit de refroidissement perfectionne. |
| DE4325141A1 (de) * | 1993-07-27 | 1995-02-02 | Kloeckner Humboldt Deutz Ag | Brennkraftmaschine |
-
1998
- 1998-12-12 DE DE19857458A patent/DE19857458A1/de not_active Withdrawn
-
1999
- 1999-11-26 DE DE59906579T patent/DE59906579D1/de not_active Expired - Lifetime
- 1999-11-26 EP EP99123616A patent/EP1008733B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1008733A3 (de) | 2000-12-06 |
| EP1008733A2 (de) | 2000-06-14 |
| DE59906579D1 (de) | 2003-09-18 |
| DE19857458A1 (de) | 2000-06-15 |
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