DE2423440C2 - Internal combustion engine multi-circuit cooler block - Google Patents

Internal combustion engine multi-circuit cooler block

Info

Publication number
DE2423440C2
DE2423440C2 DE19742423440 DE2423440A DE2423440C2 DE 2423440 C2 DE2423440 C2 DE 2423440C2 DE 19742423440 DE19742423440 DE 19742423440 DE 2423440 A DE2423440 A DE 2423440A DE 2423440 C2 DE2423440 C2 DE 2423440C2
Authority
DE
Germany
Prior art keywords
combustion engine
internal combustion
circuit
cooler block
engine multi
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
Application number
DE19742423440
Other languages
German (de)
Other versions
DE2423440A1 (en
Inventor
Franz 7251 Schöckingen Pigisch
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Priority to DE19742423440 priority Critical patent/DE2423440C2/en
Publication of DE2423440A1 publication Critical patent/DE2423440A1/en
Application granted granted Critical
Publication of DE2423440C2 publication Critical patent/DE2423440C2/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00Liquid cooling
    • F01P3/18Arrangements or mounting of liquid-to-air heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435Combination of units extending one behind the other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089Oil coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091Radiators
    • F28D2021/0094Radiators for recooling the engine coolant

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung betrifft einen Brennkraftmaschinen-Mehrkreis-Kühlerblock für gleichzeitig, aber getrennt betriebene KüiYJcreisIäufe über Rohrgruppen, die sich quer durch gemeinsame Kühlrippen hindurch zwischen oberen und unteren Sammlern erstrecken.The invention relates to an internal combustion engine multi-circuit cooler block for simultaneously but separately operated cooling circuits via pipe groups that are extend across common cooling fins between upper and lower headers.

Bei einem bekannten Kühlerblock dieser Art (US-PS 19 48 929) befindet sich über den oberen Rohrenden eine Haube und unter den unteren Rohrenden ein Sockelkasten, der durch Trennwände in zwei Kühlkreisläufe unterteilt aus Rohrgruppen von unterschiedlicher Rohranzahl unterteilt ist. Die Kühlkreisläufe sind einem Kühlwasserkreislauf für die Brennkraftmaschine bzw. einem H^hdruck-Schmiermittelkreislauf zugeordnet. Nachteilig dabei 'S'., daß die funktioneile Trennung der beiden Kühikreisläufe mit unterschiedlichen Medien und insbesondere mit unterschiedlichen Drackbeanspruchungen eine hohe Feriig-ingsaualität hinsichtlich des Einsetzens der Trennwände zur gegenseitigen Abgrenzung der Teilräume oberhalb und unterhalb der Rohr-Gruppen erfordert. Bei Leckerscheinungen aufgrund unpräziser Arbeit oder Undichtigkeiten infolge Vibrations-Wechselbeanspruchung müssen Oberteil lind Unterteil dieses Kühlblockes vollständig demontiert und im Regelfalle ausgetauscht werden, da das Suchen der Fehlstelle im Innern dieser Hohlkörper und die Reparatur der Fehlstelle zu aufwendig wäre. Der vorbekannte Brenn kraftmaschinen-Mehrkreis-Kühlerblock ist darüber hinaus jeweils für eine ganz bestimmte Leistung jedes der Kühlkreisläufe auszulegen, da sich gemäß dieser Auslegung die Dimensionierung der Sammler und damit die Geometrie und Anordnung der Trennwand insbesondere im oberen Sammler bestimmt.In a known cooler block of this type (US-PS 19 48 929) is located over the upper pipe ends a hood and under the lower pipe ends Base box, which is divided into two cooling circuits by dividing walls from tube groups of different Number of tubes is divided. The cooling circuits are a cooling water circuit for the internal combustion engine or assigned to a high pressure lubricant circuit. The disadvantage here is that the functional separation of the both cooling circuits with different media and in particular with different pressure loads a high level of completion with regard to the insertion of the partition walls to separate the sub-spaces above and below the Pipe groups required. In the event of leaks due to imprecise work or leaks as a result Due to alternating vibrations, the top and bottom of this cooling block must be completely dismantled and are usually exchanged, as the search for the defect in the interior of these hollow bodies and repairing the defect would be too costly. The previously known internal combustion engine multi-circuit cooler block must also be designed for a very specific performance of each of the cooling circuits, since according to this interpretation, the dimensions of the collector and thus the geometry and arrangement of the Partition intended in particular in the upper collector.

Aus der Zeitschrift MTZ 29 (l%8) Seiten 382 ff »Die ölkühlung am Verbrennungsmotor - Bauarten und Anordnung von Ölkühlern« ist rs bekannt, je nach den Gegebenheiten des hinzelfalles bezogen auf die Kühlluft-Strömungsnchtung einen Ölkühler vor oder hinter einem Wasserkühler anzuordnen und dabei einen Clküiiler. beispielsweise zum Rückkühlen von Hydraii-Ikcil. konstruktiv völlig getrennt vom Wasstrkühler auszubilden und den Ölkühler über eine besondere Halterungskonstruktion thermisch vom W ,isserkühler getrennt aber in seiner Nähe anzuordnen. Diese Lösung ist räumlich und konstruktiv aufwendig* da Fertigungsaufwand Montageaufwand und Platzaufwand für zwei getrennte und im Regelfalle sehr unterschiedliche Abmessungen aufweisende, einzelne Kühlerblöcke zu erbringen sind.From the magazine MTZ 29 (1% 8) pages 382 ff »The Oil cooling on the internal combustion engine - types and arrangement of oil coolers «is known, depending on the Conditions of the additional case related to the cooling air flow direction an oil cooler in front of or to be arranged behind a water cooler and a cooler. for example to cool down Hydraii-Ikcil. to be designed completely separate from the water cooler and the oil cooler via a special one Mounting structure to be arranged thermally separated from the water cooler but in its vicinity. This solution is spatially and structurally complex * because manufacturing costs, assembly costs and space requirements for two separate and, as a rule, very different dimensions having individual cooler blocks are to be provided.

Der Erfindung liegt die Aufgabe zugrunde, einen Brennkraftmaschinen-Mehrkreis-Kühlerblock der eingangs genannten Art so auszubilden, daß er bei vergrößerter Betriebssicherheit variabler einsetzbar ist. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die oberen Sammler und analog auch die unterenThe invention is based on the object of providing an internal combustion engine multi-circuit cooler block of the initially introduced to train said type so that it can be used more variably with increased operational reliability. According to the invention, this object is achieved in that the upper collectors and, analogously, also the lower ones

ίο Sammler unterschiedlich groß ausgebildet sind und die Gesamtzahl der Rohre auf die jeweiligen Paare der Sammler beliebig aufgeteilt ist.ίο collectors are of different sizes and the Total number of tubes on the respective pairs of collectors is arbitrarily divided.

In vorteilhafter Weise ist der erfindungsgemäße Kühlerblock mit seinen Qurchgehenden Kühlrippen den jeweiligen Anforderungen anpaßbar und bildet eine mechanisch stabile, dennoch leichte und nur eine Halterung erfordernde Baueinheit Dabei kann der Kühlerblock in einem Rahmen angeordnet bein, der Befestigungsmittel aufweist. Aufgrund des Wärmeflusses über die gemeinsamen Rippen wird auch unter ungünstigen Umgebung«- oder Betriebsbedingungen im Niedertemperaturkreislauf das gefürchtete Einstocken des Öls im Ölkühler-Teilblock oder das Einfrieren des Wassers im Wasserkühler-Teilblock vermieden. Dar-The cooler block according to the invention with its continuous cooling fins is advantageously the adaptable to the respective requirements and forms a mechanically stable, yet lightweight and only one Bracket requiring assembly The cooler block can be arranged in a frame that Has fastening means. Because of the heat flow over the common ribs, even under unfavorable surroundings «- or operating conditions in the Low-temperature circuit, the dreaded stocking up of the oil in the oil cooler sub-block or the freezing of the Avoided water in the water cooler sub-block. Dar-

über hinaus ergeben sich fertigungs- und anwendungstechnische Vorteile, weil ein Austausch der Sammler-Paare vorgenommer, werden kann, ohne daß die Gefahr besteht, daß über undicht eingesetzte oder im Verlaufe des Betriebes undicht werdende Trennwände in einem alle Rohre überspannenden und gesondert zu unterteilenden Sammelraum Strömungsmedien vom einen Kühlkreislauf in den anderen übertreten kann. Besonders vorteilhaft ist es, die Wärmetauscher der einzelnen Kreisläufe in Luftrichtung gesehen hintereinander 2Ί there are also advantages in terms of production and application technology because the collector pairs can be exchanged without the risk of partition walls that are not tight or that become leaky in the course of operation in one that spans all the pipes and needs to be subdivided separately Collecting space flow media can pass from one cooling circuit to the other. It is particularly advantageous to have the heat exchangers of the individual circuits one behind the other as seen in the air direction

•ϊ anzuordnen.• ϊ to be arranged.

Die Erfindung wird anhand der Zeichnung näher erläutert, die schematisch einen Brennkraftmaschinen-Mehrkreis-Kühlerblock mit zwei luftseitig hintereinander angeordneten Wärmetauschern.. ;>gt.The invention is explained in more detail with reference to the drawing, which schematically shows an internal combustion engine multi-circuit cooler block with two heat exchangers arranged one behind the other on the air side ..;> gt.

Der dargestellte Kühlerblock weist einen Wärmetauscher für einen ersten Kühlkreislauf, beispielsweise einen Niedertemperaturkreislauf auf. der aus einem oberen Sammler 1. einem unteren Sammler 2 sowie Rohren 5 besteht. In unmittelbarer räumlicher Veibin dung, luftseitig gesehen dahinter, ist ein zweiter Wärmetauscher beispielsweise für einen I lochtemperatur Kreislauf angeordnet, der aus einem oberen Sammler 3. einem unteren Sammler 4 und aus Rohren 6 besteht.The cooler block shown has a heat exchanger for a first cooling circuit, for example a low temperature circuit. from an upper collector 1. a lower collector 2 as well as Tubes 5 consists. In the immediate spatial Veibin dung, seen behind it on the air side, is a second one Heat exchanger arranged for example for a I hole temperature circuit, which consists of an upper Collector 3, a lower collector 4 and 6 pipes.

Vi Die beiden Wärmetauscher sind mit durchgehenden, beiden Wärmetauschern gemeinsamen Kühlrippen 7 versehen. Die durchgehenden Rippen ermöglichen eine leichte Anpassung der beiden (oder mehreren) Wärmetauscher an die jeweils vorliegenden Verhältnisse Bei Vi The two heat exchangers are provided with continuous cooling fins 7 common to both heat exchangers. The continuous ribs allow the two (or more) heat exchangers to be easily adapted to the conditions prevailing in each case

« gleicher Größe der durchgehenden Rippen 7 können verschieden große Sammler 1, 3 und 2, 4 vorgesehen werden und ebenso kann innerhalb der Gesamtzahl der in den durchgehenden Rippen vorgesehenen Öffnungen für Rohre die Rohranzahl aufgeteilt werden auf die beiden Kreisläufe. Die Anschlüsse der einzelnen Wärmetauscher an jeden Kühlkreislauf sind beliebig und daher in den Zeichnungen nicht näher dargestellt.«The same size of the continuous ribs 7, collectors 1, 3 and 2, 4 of different sizes can be provided and also can be within the total number of openings provided in the continuous ribs for pipes the number of pipes is divided between the two circuits. The connections of each Heat exchangers on each cooling circuit are arbitrary and therefore not shown in detail in the drawings.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Brennkraftmaschinen-Mehrkreis-Kühlerblock für gleichzeitig, aber getrennt betriebene Kühlkreisläufe über Rohrgruppen, die sich quer durch gemeinsame Kühlrippen hindurch zwischen oberen und unteren Sammlern erstrecken, dadurch gekennzeichnet, daß die oberen Sammler (I1 3) und analog auch die unteren Sammler (2,4) unterschiedlich groß ausgebildet sind und die Gesamtzahl der Rohre (5,6) auf die jeweiligen Paare der Sammler (1, 2; 3,4) beliebig aufgeteilt ist.Internal combustion engine multi-circuit cooler block for simultaneously but separately operated cooling circuits via pipe groups which extend across common cooling fins between upper and lower headers, characterized in that the upper headers (I 1 3) and, similarly, the lower headers (2, 4) are designed to be of different sizes and the total number of tubes (5, 6) is divided as desired between the respective pairs of collectors (1, 2; 3, 4).
DE19742423440 1974-05-14 1974-05-14 Internal combustion engine multi-circuit cooler block Expired DE2423440C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742423440 DE2423440C2 (en) 1974-05-14 1974-05-14 Internal combustion engine multi-circuit cooler block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742423440 DE2423440C2 (en) 1974-05-14 1974-05-14 Internal combustion engine multi-circuit cooler block

Publications (2)

Publication Number Publication Date
DE2423440A1 DE2423440A1 (en) 1975-11-20
DE2423440C2 true DE2423440C2 (en) 1982-03-04

Family

ID=5915551

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742423440 Expired DE2423440C2 (en) 1974-05-14 1974-05-14 Internal combustion engine multi-circuit cooler block

Country Status (1)

Country Link
DE (1) DE2423440C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608439B2 (en) 1988-01-28 2002-09-25 Modine Manufacturing Company Heat exchanger with improved condensate collection

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634546B1 (en) * 1988-07-20 1991-08-02 Valeo HEAT EXCHANGER DEVICE FOR MULTIPLE COOLING CIRCUITS USING THE SAME HEAT FLUID
IT1224459B (en) * 1988-09-30 1990-10-04 Fiat Auto Spa INTEGRATED WATER OIL RADIATOR IN PARTICULAR FOR VEHICLES
JPH0645155Y2 (en) * 1988-10-24 1994-11-16 サンデン株式会社 Heat exchanger
US5176200A (en) * 1989-04-24 1993-01-05 Sanden Corporation Method of generating heat exchange
JPH02140166U (en) * 1989-04-24 1990-11-22
JP3030036B2 (en) * 1989-08-23 2000-04-10 昭和アルミニウム株式会社 Double heat exchanger
DE4033897A1 (en) * 1990-10-25 1992-04-30 Kloeckner Humboldt Deutz Ag Heat exchanger assembly
US5186243A (en) * 1992-07-13 1993-02-16 General Motors Corporation Combination condenser and radiator tank thermal gap
FR2726325B1 (en) * 1994-10-27 1997-01-03 Peugeot OIL COOLING DEVICE IN A VEHICLE EQUIPPED WITH A WATER COOLED ENGINE
DE19509654A1 (en) * 1995-03-17 1996-09-19 Kloeckner Humboldt Deutz Ag Heat exchange unit for IC engine
DE19536116B4 (en) * 1995-09-28 2005-08-11 Behr Gmbh & Co. Kg Heat exchanger for a motor vehicle
DE19722097A1 (en) * 1997-05-27 1998-12-03 Behr Gmbh & Co Heat exchanger and heat exchanger arrangement for a motor vehicle
DE19961199B4 (en) * 1999-12-18 2007-10-04 Modine Manufacturing Co., Racine The heat exchanger
CN100567871C (en) * 2006-12-08 2009-12-09 南车青岛四方机车车辆股份有限公司 Motorcycle oil-water refrigerating mechanism
DE102011082797A1 (en) * 2011-09-15 2013-03-21 Behr Gmbh & Co. Kg Heat exchanger for cooling charge air
DE102012108109B4 (en) * 2012-08-31 2014-04-10 Rittal Gmbh & Co. Kg Heat exchanger for cabinet cooling and a corresponding cooling arrangement
CN103471439B (en) * 2013-09-18 2015-12-23 无锡马山永红换热器有限公司 Combined cooler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948929A (en) * 1930-01-13 1934-02-27 Hupp Motor Car Corp Lubricating system
DE1982615U (en) * 1967-11-17 1968-04-04 Erich Gross CLIMATE BODY.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608439B2 (en) 1988-01-28 2002-09-25 Modine Manufacturing Company Heat exchanger with improved condensate collection

Also Published As

Publication number Publication date
DE2423440A1 (en) 1975-11-20

Similar Documents

Publication Publication Date Title
DE2423440C2 (en) Internal combustion engine multi-circuit cooler block
EP2161525B1 (en) Modular heat exchanger
EP1279805B1 (en) Air-cooled intake air cooler
DE3779993T2 (en) COUNTERFLOW HEAT EXCHANGER WITH FLOATING PLATE.
WO2003046457A1 (en) Heat exchanger
DE3028304A1 (en) HEAT EXCHANGER
WO2004113815A1 (en) Device for multi-stage heat exchange and method for producing one such device
DE102006048667A1 (en) Heat exchanger arrangement and method for heat transfer
DD239655A5 (en) GAS / LIQUID OR GAS / GAS CHAMBER EXCHANGER
EP0789213A2 (en) Heat exchanger for automotive vehicle
EP0964218A2 (en) Heat exchanger with flat finned tubes, more particularly radiator,cooler,condenser or evaporator for automotive vehicle
DE2952736C2 (en)
CH656949A5 (en) HEAT EXCHANGER.
DE10257767A1 (en) Heat exchanger for condenser or gas cooler for air conditioning installations has two rows of channels for coolant with manifolds at ends and has ribs over which air can flow
DE844630C (en) Filling compound for regenerative heat exchangers
DE3209240C2 (en) Cross-flow plate heat exchanger
DE102004001786A1 (en) Heat exchanger, especially for supercritical refrigeration cycle
EP0253167A1 (en) Heat-exchanger, more particularly evaporator for refrigerant
DE102008037311B3 (en) Heat exchanger for motor vehicle, where heat conduction fins of first fluid channel form second fluid channel
DE9014655U1 (en) Heat exchangers, especially condensers and evaporators for vehicle air conditioning systems
DE3608232A1 (en) HEAT EXCHANGER FOR INTERNAL COMBUSTION ENGINES
DE202015103710U1 (en) Gas-fluid counterflow heat exchanger
CH585887A5 (en) Tubular heat exchanger with glass tubes - having silicone rubber jointing to form bundle end
DE102006035994A1 (en) Automotive air conditioning system, heat exchanger, in particular radiator, for such a motor vehicle air conditioning system and method for operating a heat exchanger of an automotive air conditioning system
DE68905402T2 (en) HEAT EXCHANGER BETWEEN A GAS AND A LIQUID WITH INCREASED THERMAL EXCHANGEABILITIES.

Legal Events

Date Code Title Description
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation