EP1074705A2 - Kühlanlage für einen Verbrennungsmotor - Google Patents
Kühlanlage für einen Verbrennungsmotor Download PDFInfo
- Publication number
- EP1074705A2 EP1074705A2 EP00114627A EP00114627A EP1074705A2 EP 1074705 A2 EP1074705 A2 EP 1074705A2 EP 00114627 A EP00114627 A EP 00114627A EP 00114627 A EP00114627 A EP 00114627A EP 1074705 A2 EP1074705 A2 EP 1074705A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- pump
- internal combustion
- combustion engine
- cooling system
- 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- Withdrawn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
- 238000001816 cooling Methods 0.000 title claims description 41
- 238000002485 combustion reaction Methods 0.000 title claims description 35
- 239000002826 coolant Substances 0.000 claims abstract description 38
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Images
Classifications
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
-
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
-
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
-
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
Definitions
- the invention relates to a cooling system for a Internal combustion engine with the features of the preamble of Claim 1.
- a cooling medium usually a cooling liquid
- a heat exchanger Cooling system wherein the cooling medium is cooled.
- the heat exchanger used is usually a cooling medium / air heat exchanger, which at a Motor vehicle is subjected to the wind.
- coolant Coolant pump usually from the internal combustion engine is mechanically driven.
- the present invention addresses the problem to design a cooling system of the type mentioned at the outset, that even when using smaller pumps one for cooling larger and more powerful internal combustion engines sufficient cooling capacity can be guaranteed.
- the invention is based on the general idea, two to provide separate pumps, namely the internal combustion engine assigned motor pump and one assigned to the heat exchanger Heat exchanger pump, with two coolant circuits flowing through it are formed with each other via coupling means communicate.
- two coupling agents With the help of these coupling agents, a Difference between that generated by the motor pump Volume flow in which the internal combustion engine and the motor pump containing engine circuit and by the heat exchanger pump generated volume flow in the the heat exchanger and the Heat exchanger pump containing heat exchanger circuit be balanced.
- the size of this volume flow difference depends on the activity of the pumps, depending on of the exchange of cooling medium thereby generated more or less thorough mixing of the cooling medium of the motor circuit with the cooling medium of the heat exchanger circuit.
- the Cooling system according to the invention has a compact structure.
- the design and construction of the motor pump regarding the requirements of the internal combustion engine, such as e.g. Flow resistance, volume flow, can be optimized.
- the heat exchanger pump to the special Requirements of the heat exchanger circuit can be adapted.
- the coolant volume flow in the Engine circuit used by the internal combustion engine to cool the engine required cooling capacity depends on which Differentiate coolant volume flow in the heat exchanger circuit, which depends on the cooling capacity that the heat exchanger he brings.
- the cooling capacity provided by the heat exchanger depends in particular on the ambient temperature and others in addition to cooling units, e.g. Intercooler, Transmission oil cooler, fuel cooler, alternator, from.
- cooling units e.g. Intercooler, Transmission oil cooler, fuel cooler, alternator
- the design according to the invention can thus the cooling capacity of the Heat exchanger by a corresponding increase in Coolant volume flow in the heat exchanger circuit are effected, without the coolant volume flow in the engine circuit changes.
- Cooling systems have a thermostatic valve that is conventional Bypasses the cooling circuit bypassing the heat exchanger, see above that the internal combustion engine and the cooling medium as quickly as possible can be brought to the optimal operating temperature.
- a Thermostatic valve is basically not necessary because switched off heat exchanger pump the heat exchanger circuit and thus the cooling of the cooling medium are deactivated.
- the coupling means have a valve that the Coolant mixing of the two circles influenced. This Measure allows the cooling system to a certain Cooling capacity only with one of the two pumps operate the second pump only when necessary activate.
- the 1 has a cooling system 1 according to the invention a motor circuit 2, which in Fig. 1 by a broken lines shown frame is marked and an internal combustion engine 3 and a motor pump 4 having. Furthermore, the cooling system 1 includes one Heat exchanger circuit 5, in Fig. 1 by a broken lines shown frame is marked and the one heat exchanger 6 and a heat exchanger pump 7 contains.
- the heat exchanger 6 is preferably a conventional coolant / air heat exchanger.
- the pumps 4 and 7 are preferably designed as electric pumps via power cable 8 with a not shown Power supply are connected and the control cable 9 and 10 are connected to a controller 11.
- the controller 11 is designed so that it pumps 4 and 7 separately and can operate independently. Conveniently the controller 11 is implemented in an engine controller.
- the Control 11 has the necessary data for Actuation of pumps 4 and 7, e.g. current Engine temperature and coolant temperature in the heat exchanger circuit 5 and in the motor circuit 2.
- the two circles 2 and 5 are via coupling means 12 connected to one another in FIG dash-dotted line highlighted frame are.
- these coupling means 12 have a line section 13 on, which is shared by both circles 2 and 5, that is, the line section 13 is both from the coolant the engine circuit 2 and the coolant of the Flows through heat exchanger circuit 5.
- the line section 13 thus forms a common component of the two circles 2 and 5.
- Line section 13 an outflow side 17 of Internal combustion engine 3 and motor pump 4 with the inflow side 16 of motor pump 4 and internal combustion engine 3 and with the Inflow side 15 of heat exchanger 6 and heat exchanger motor 7.
- the coolant flow directions are in the individual Inflow areas 16, 15 and outflow areas 17, 14 through Arrows marked.
- Heat exchanger pump 7 upstream or downstream of the heat exchanger 6 is arranged. It is also irrelevant whether the Motor pump 4 upstream or downstream of the internal combustion engine 3 in Motor circuit 2 is arranged.
- the cooling system 1 works as follows:
- the heat exchanger circuit 5 If the volume flow in the heat exchanger circuit 5 is greater than the volume flow in the motor circuit 2, the removes Motor circuit 2 at a first junction 18 to Cooling of the internal combustion engine 3 required Coolant volume flow from the heat exchanger circuit 5.
- the Difference in flow rates flows through the Line section 13 from the first branch 18 to one second branch 19.
- the heat exchanger circuit 5 additionally takes the entire Volume flow from that of the engine circuit 2, so that downstream the second branch 19 again the complete volume flow of the heat exchanger circuit 5 fed to the heat exchanger 6 becomes.
- the coupling means 12 In operating states in which the internal combustion engine 3 only has a relatively low cooling requirement, it can be useful to deactivate one of the pumps 4 and 7, for example in order to to protect each switched off pump 4 or 7. Since that Coolant always takes the path of least resistance, the coupling means 12 must have corresponding valve means have a when the motor pump 4 is deactivated Coolant flow through the motor pump 4 and Internal combustion engine 3 and with the heat exchanger pump deactivated 7 a coolant flow through the heat exchanger 6 and Ensure heat exchanger pump 7.
- valve means 20, 21, 22 can be designed to be adjustable, the valves 20, 21, 22 each via a corresponding control line 23 the controller 11 are connected.
- Valve 20 may be arranged on the first branch 18, wherein depending on the switching position, the downstream side 14 of Heat exchanger pump 7 and heat exchanger 6 with one adjustable distribution ratio on the line section 13 and on the inflow side 16 of motor pump 4 and Internal combustion engine 3 divides.
- the split ratio can basically be arbitrary here and especially everyone Value between 0 percent to 100 percent and 50 percent to 50 Accept percent.
- the Valves 20 and 22 can also be designed such that the inflow side 16 of the motor pump 4 (see FIG. 2) or the Line section 13 (see FIG. 4) can be throttled.
- a second alternative Valve 21 may be arranged in line section 13, so that by operating the valve 21 of the Flow resistance of line section 13 is adjustable. The greater the flow resistance, the more the coolant exchange between the Coolant circuits 2 and 5.
- valve 22 can with a third Alternatives are also arranged on the second branch 19 be, in which case the outflow side 17 of internal combustion engine 3rd and motor pump 4 in an arbitrarily adjustable Distribution ratio on the line section 13 and the Inflow side 15 of heat exchanger 6 and heat exchanger pump 7 is divisible.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- Fig. 1
- eine schaltplanartige Prinzipdarstellung für eine Kühlanlage nach der Erfindung,
- Fig. 2
- einen Ausschnitt auf die Darstellung gemäß Fig. 1, jedoch einer anderen Ausführungsform,
- Fig. 3
- eine Ansicht wie in Fig. 2, jedoch einer weiteren Ausführungsform und
- Fig. 4
- eine Ansicht wie in Fig. 2, jedoch einer anderen Ausführungsform.
Claims (9)
- Kühlanlage für einen Verbrennungsmotor (3), bei der ein Kühlmedium zur Aufnahme von Wärmeenergie den Verbrennungsmotor (3) und zur Abgabe von Wärmeenergie einen Wärmetauscher (6) durchströmt,
dadurch gekennzeichnet,daß ein Wärmetauscherkreis (5) vorgesehen ist, in dem der Wärmetauscher (6) und eine das Kühlmittel antreibende Wärmetauscherpumpe (7) angeordnet sind,daß ein Motorkreis (2) vorgesehen ist, in dem der Verbrennungsmotor (3) und eine das Kühlmittel antreibende Motorpumpe (4) angeordnet sind,daß Kopplungsmittel (12) vorgesehen sind, welche die Abströmseite (17) von Verbrennungsmotor (3) und Motorpumpe (4) mit der Zuströmseite (16) von Verbrennungsmotor (3) und Motorpumpe (4) und/oder mit der Zuströmseite (15) von Wärmetauscher (6) und Wärmetauscherpumpe (7) verbinden und welche die Abströmseite (14) von Wärmetauscher (6) und Wärmetauscherpumpe (7) mit der Zuströmseite (15) von Wärmetauscher (6) und Wärmetauscherpumpe (7) und/oder mit der Zuströmseite (16) von Verbrennungsmotor (3) und Motorpumpe (4) verbinden. - Kühlanlage nach Anspruch 1,
dadurch gekennzeichnet,
daß eine Steuerung (11) vorgesehen ist, welche die Motorpumpe (4) und die Wärmetauscherpumpe (7) separat betätigt. - Kühlanlage nach Anspruch 2,
dadurch gekennzeichnet,
daß die Steuerung (11) einen Mischbetrieb ermöglicht, bei dem ein Austausch von Kühlmedium zwischen Motorkreis (2) und Wärmetauscherkreis (5) erfolgt, wobei die Steuerung (11) die Motorpumpe (4) und die Wärmetauscherpumpe (7) gleichzeitig betätigt und in Abhängigkeit einer gewünschten Durchmischung unterschiedlich betätigt. - Kühlanlage nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Kopplungsmittel (12) einen durchströmbaren Hohlkörper (13) aufweisen, der einerseits mit der Abströmseite (17) von Verbrennungsmotor (3) und Motorpumpe (4) sowie mit der Zuströmseite (15) von Wärmetauscher (6) und Wärmetauscherpumpe (7) verbunden ist und der andererseits mit der Abströmseite (14) von Wärmetauscher (6) und Wärmetauscherpumpe (7) sowie mit der Zuströmseite (16) von Verbrennungsmotor (3) und Motorpumpe (4) verbunden ist. - Kühlanlage nach Anspruch 4,
dadurch gekennzeichnet,
daß der Hohlköper durch einen Leitungsabschnitt (13) gebildet ist. - Kühlanlage nach Anspruch 4 oder 5,
dadurch gekennzeichnet,
daß die Kopplungsmittel (12) mindestens ein Ventil (20; 21; 23) aufweisen, das die Durchflußmenge durch den Hohlkörper (13) beeinflußt. - Kühlanlage nach Anspruch 6,
dadurch gekennzeichnet,
daß das Ventil (20, 21, 22) als selbsttätig arbeitendes Thermostatventil ausgebildet ist oder durch eine Steuerung (11) betätigbar ist. - Kühlanlage nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß an den Wärmetauscherkreis (5) und/oder an den Motorkreis (2) weitere zu kühlende und/oder zu erwärmende Aggregate angeschlossen sind. - Kühlanlage nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
daß wenigstens eine der Pumpen (4) und (7) als Elektropumpe ausgestaltet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19937121 | 1999-08-06 | ||
| DE1999137121 DE19937121A1 (de) | 1999-08-06 | 1999-08-06 | Kühlanlage für einen Verbrennungsmotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1074705A2 true EP1074705A2 (de) | 2001-02-07 |
| EP1074705A3 EP1074705A3 (de) | 2003-03-19 |
Family
ID=7917422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00114627A Withdrawn EP1074705A3 (de) | 1999-08-06 | 2000-07-07 | Kühlanlage für einen Verbrennungsmotor |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1074705A3 (de) |
| DE (1) | DE19937121A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10143109B4 (de) * | 2001-09-03 | 2020-12-03 | Att Automotive Thermo Tech Gmbh | Verfahren und Vorrichtung zur Einstellung definierter Kühlmittelströme in Kühlsystemen von Brennkraftmaschinen in Kraftfahrzeugen |
| DE10165136B4 (de) | 2001-09-03 | 2025-10-09 | Att Automotive Thermo Tech Gmbh | Verfahren und Vorrichtung zur Einstellung definierter Kühlmittelströme in Kühlsystemen von Brennkraftmaschinen in Kraftfahrzeugen |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE855642C (de) * | 1941-09-28 | 1952-11-13 | Daimler Benz Ag | Fluessigkeitskuehlung fuer Brennkraftmaschinen |
| US3080857A (en) * | 1960-12-14 | 1963-03-12 | Int Harvester Co | Engine coolant system |
| DE3024209A1 (de) * | 1979-07-02 | 1981-01-22 | Guenter Dr Rinnerthaler | Fluessigkeitskuehlung fuer verbrennungsmotoren |
| GB8313907D0 (en) * | 1983-05-19 | 1983-06-22 | Sabre Engines | Engine cooling system |
| FR2571431B1 (fr) * | 1984-10-09 | 1989-04-21 | Renault Vehicules Ind | Dispositif de refroidissement pour moteur a combustion interne |
| JPH0417715A (ja) * | 1990-05-07 | 1992-01-22 | Nippondenso Co Ltd | 内燃機関の冷却装置 |
| JPH07119463A (ja) * | 1993-10-25 | 1995-05-09 | Mitsubishi Heavy Ind Ltd | 内燃機関の冷却装置 |
| DE19831901A1 (de) * | 1998-07-16 | 2000-01-20 | Bosch Gmbh Robert | Vorrichtung zum Kühlen eines Motors für ein Kraftfahrzeug |
-
1999
- 1999-08-06 DE DE1999137121 patent/DE19937121A1/de not_active Withdrawn
-
2000
- 2000-07-07 EP EP00114627A patent/EP1074705A3/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10143109B4 (de) * | 2001-09-03 | 2020-12-03 | Att Automotive Thermo Tech Gmbh | Verfahren und Vorrichtung zur Einstellung definierter Kühlmittelströme in Kühlsystemen von Brennkraftmaschinen in Kraftfahrzeugen |
| DE10165136B4 (de) | 2001-09-03 | 2025-10-09 | Att Automotive Thermo Tech Gmbh | Verfahren und Vorrichtung zur Einstellung definierter Kühlmittelströme in Kühlsystemen von Brennkraftmaschinen in Kraftfahrzeugen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1074705A3 (de) | 2003-03-19 |
| DE19937121A1 (de) | 2001-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4327261C1 (de) | Kühlmittelkreislauf | |
| EP2608973B1 (de) | Heiz-/kühleinrichtung und heiz-/kühl-modul für eine heiz-/kühleinrichtung | |
| EP0787929B1 (de) | Vorrichtung zur Temperierung des Getriebeöls eines Kraftfahrzeuges | |
| DE19849492B4 (de) | Steuervorrichtung für einen Kühlkreislauf einer Brennkraftmaschine | |
| DE10107875B4 (de) | System zur Kühlung einer Brennstoffzellenanlage | |
| DE10134678A1 (de) | Vorrichtung zum Kühlen und Heizen eines Kraftfahrzeuges | |
| EP0940566A2 (de) | Steuervorrichtung für den Kühl- und Heizungskreislauf einer Brennkraftmaschine | |
| EP1108572B1 (de) | Wärmetauschsystem für die Heizung eines Fahrzeugs mit Hybridantrieb | |
| DD149920A5 (de) | Heizeinrichtung | |
| EP1111214A2 (de) | Kühl-Heiz-Kreis mit zwei Kühlern | |
| DE102004024289A1 (de) | Kühlsystem für ein Fahrzeug | |
| EP0177025A2 (de) | Kühlsystem | |
| DE19956893A1 (de) | Kühlkreis für einen Verbrennungsmotor | |
| EP1923549B1 (de) | Kühlsystem für ein Kraftfahrzeug | |
| WO2019048522A1 (de) | Steuermodul zur klimatisierung einer batterie | |
| EP4171977A1 (de) | Thermomanagementsystem für ein elektrofahrzeug und verfahren zu dessen betrieb | |
| DE102006020951A1 (de) | Kühlsystem für ein Fahrzeug und Verfahren zum Betreiben eines Kühlsystems | |
| DE102021207249A1 (de) | Thermomanagementsystem für eine Batterie eines Kraftfahrzeugs und Kraftfahrzeug mit einem Thermomanagementsystem | |
| DE102021214728A1 (de) | Kühlsystem | |
| DE102019205575A1 (de) | Vorrichtung zur Kühlung einer Fahrzeugbatterie | |
| DE102005048286B4 (de) | Verfahren zum Betrieb eines Kühlsystems für eine Verbrennungskraftmaschine | |
| EP4486582A1 (de) | Kühlmittelsystem für ein elektrofahrzeug und kühlsystem für ein elektrofahrzeug mit einem kühlmittelsystem und einem kältemittelkreislauf | |
| DE102004021551A1 (de) | Kühlsystem, insbesondere für ein Kraftfahrzeug | |
| EP1266779B1 (de) | Fahrzeug-Kühlkreislauf für die Kühlung einer temperaturerhöhenden Einrichtung mittels eines Kuhlmittels | |
| DE112018004425T5 (de) | Aktives Aufheizsystem und Aufheizverfahren |
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 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 |
|
| 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 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 |
Extension state: AL LT LV MK RO SI |
|
| AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
|
| 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: 20030920 |