DE4326158A1 - Liquid guidance for an internal combustion engine - Google Patents

Liquid guidance for an internal combustion engine

Info

Publication number
DE4326158A1
DE4326158A1 DE4326158A DE4326158A DE4326158A1 DE 4326158 A1 DE4326158 A1 DE 4326158A1 DE 4326158 A DE4326158 A DE 4326158A DE 4326158 A DE4326158 A DE 4326158A DE 4326158 A1 DE4326158 A1 DE 4326158A1
Authority
DE
Germany
Prior art keywords
pump
liquid
cover
housing
channel
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.)
Granted
Application number
DE4326158A
Other languages
German (de)
Other versions
DE4326158C2 (en
Inventor
Josef Dipl Ing Roessle
Ernst-Wilhelm Dipl I Hufendiek
Johannes Dipl Ing Werner
Walter Dipl Ing Kerschbaum
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Priority to DE4326158A priority Critical patent/DE4326158C2/en
Priority to DE59401128T priority patent/DE59401128D1/en
Priority to EP94110167A priority patent/EP0637681B1/en
Publication of DE4326158A1 publication Critical patent/DE4326158A1/en
Application granted granted Critical
Publication of DE4326158C2 publication Critical patent/DE4326158C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • 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
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F01P2003/2278—Heat pipes
    • 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
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F01P2003/2292—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point with thermostatically controlled by-pass
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die Erfindung bezieht sich auf eine Flüssigkeitsführung für eine Brennkraftmaschine gemäß den im Oberbegriff des Patentan­ spruchs 1 genannten Merkmalen.The invention relates to a liquid guide for an internal combustion engine according to the preamble of the patent Proverb 1 mentioned features.

Eine derartige Flüssigkeitsführung ist aus der DE 25 02 034 A1 bekannt. In dieser Schrift wird es als nachteilig angesehen, eine Ölpumpe und einen Stirndeckel als Einzelteile am Brenn­ kraftmaschinengehäuse anzuordnen, da bei einer Förderung des Öls von der Ölpumpe in die Kanäle des Stirndeckels die Verbin­ dung zwischen den beiden schwierig abzudichten ist und eine Ölleckage eintritt. Als Abhilfe schlägt diese Schrift ein ge­ meinsames Gehäuse für Ölpumpe und Stirndeckel vor. Hierdurch ergeben sich jedoch die Nachteile, daß ein Austausch der Pumpe nur gemeinsam mit dem Stirndeckel möglich ist und die Verwen­ dung unterschiedlicher Pumpen verhindert wird.Such a liquid guide is from DE 25 02 034 A1 known. In this document, it is considered disadvantageous an oil pump and a front cover as individual parts on the burner to arrange the engine housing, since a promotion of Oil from the oil pump into the channels of the front cover is difficult to seal between the two and one Oil leakage occurs. As a remedy, this document is helpful common housing for oil pump and front cover. Hereby However, there are the disadvantages that an exchange of the pump is only possible together with the front cover and the use different pumps is prevented.

Der Erfindung liegt die Aufgabe zugrunde, bei einer gattungs­ gemäßen Flüssigkeitsführung eine sichere Abdichtung für die Flüssigkeit auch bei einer getrennten Ausbildung von Flüssig­ keitspumpe und Stirndeckel zu erreichen.The invention has for its object in a genus proper liquid management a secure seal for the Liquid even if liquid is formed separately reach pump and front cover.

Diese Aufgabe ist bei einer gattungsgemäßen Flüssigkeitsführung durch die kennzeichnenden Merkmale des Patentanspruchs 1 ge­ löst. This task is with a generic fluid management by the characterizing features of claim 1 ge solves.  

Bei der erfindungsgemäßen Flüssigkeitsführung sind die Flüs­ sigkeitspumpe und der Stirndeckel als Einzelteile ausgebildet mit den Vorteilen einer getrennten Austauschbarkeit und der Möglichkeit einer Verwendung unterschiedlicher Flüssigkeits­ pumpen, ohne daß sich die Notwendigkeit einer schwierig zu verwirklichenden Abdichtung unmittelbar zwischen Flüssigkeits­ pumpe und Stirndeckel ergibt. Die tunnelartige Verbindung in­ nerhalb des Brennkraftmaschinengehäuses zwischen der Flüssig­ keitspumpe und dem Deckelkanal läßt getrennte, leicht abzu­ dichtende Trennflächen der Flüssigkeitspumpe und des Stirndec­ kels mit dem Brennkraftmaschinengehäuse zu, die nebeneinander quer oberhalb dieser tunnelartigen Verbindung verlaufen.In the fluid flow according to the invention, the rivers are liquid pump and the front cover designed as individual parts with the advantages of a separate interchangeability and the Possibility of using different liquids pump without the need for a difficult to realizing sealing directly between liquid pump and front cover results. The tunnel-like connection in within the engine casing between the liquid speed pump and the cover channel leaves separate, easy to remove sealing separating surfaces of the liquid pump and the front dec kels with the engine casing to side by side run across this tunnel-like connection.

Die Ausführung gemäß dem Patentanspruch 2 ermöglicht eine be­ sonders kostengünstige Austauschbarkeit einer Kühlmittelpumpe, da lediglich die einem Verschleiß ausgesetzten beweglichen Teile und das diese tragende Pumpengehäuseteil getrennt vom Maschinengehäuse ausgeführt sind.The embodiment according to claim 2 enables a be particularly cost-effective interchangeability of a coolant pump, since only the movable ones that are subject to wear Parts and the pump housing part carrying this separately from Machine housing are executed.

Im Patentanspruch 3 ist eine neben der Weiterleitung der Flüs­ sigkeit zusätzliche Nutzung des Deckelkanals als Aufnahme eines Ölkühlers angegeben, wobei in den Ansprüchen 4 und 5 dessen besonders günstige Anordnung und Durchströmung dargestellt ist.In claim 3 is one in addition to the forwarding of the rivers additional use of the cover channel as the inclusion of a Oil cooler indicated, wherein in claims 4 and 5 thereof particularly favorable arrangement and flow is shown.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigt:In the following the invention with reference to one in the drawing illustrated embodiment explained in more detail. Here shows:

Fig. 1 eine Teil-Stirnansicht eines Brennkraftmaschi­ nengehäuses im Bereich einer Kühlmittelpumpe und Fig. 1 is a partial front view of a Brennkraftmaschi nengehäuses in the area of a coolant pump and

Fig. 2 einen Schnitt durch das Maschinengehäuse nach der Linie II-II der Fig. 1 mit zugehörigem Pumpenge­ häuse und Stirndeckel. Fig. 2 shows a section through the machine housing along the line II-II of Fig. 1 with the associated pump housing and end cover.

Kühlmittel zur Kühlung einer Brennkraftmaschine wird von einem Pumpenrad 1 einer Kühlmittelpumpe 2 gefördert, das über eine Riemenscheibe 3 angetrieben wird und in einem Pumpengehäuse­ deckel 4 mittels einer Welle 5 gelagert ist. Die Kühlmittel­ pumpe 2 ist in Spiralbauweise ausgeführt mit im Maschinenge­ häuse 6 der Brennkraftmaschine gelegenem Spiralkanal 7, der durch den Pumpengehäusedeckel 4 abgedeckt ist, der stirnseitig an das Maschinengehäuse 6 angeschraubt ist.Coolant for cooling an internal combustion engine is conveyed by a pump wheel 1 of a coolant pump 2 , which is driven via a pulley 3 and is mounted in a pump housing cover 4 by means of a shaft 5 . The coolant pump 2 is designed in a spiral design with located in the machine housing 6 of the internal combustion engine spiral channel 7 , which is covered by the pump housing cover 4, which is screwed onto the front of the machine housing 6 .

Das Kühlmittel wird aus dem Spiralkanal 7 in einen Deckelkanal 8 gefördert, der durch das Maschinengehäuse 6 und einen stirn­ seitig an diesem angeschraubten Stirndeckel 9 gebildet wird. Im Deckelkanal 8 ist ein am Stirndeckel 9 angeschraubter, in das stirnseitige Maschinengehäuse 6 tellweise hineinragender Öl­ kühler 10 zur Kühlung von Schmieröl durch das Kühlmittel ange­ ordnet, das dann aus dem Ölkühler 10 in einen Längskanal 11 und zu den einzelnen Zylindern 12 im Maschinengehäuse 6 geführt wird.The coolant is conveyed out of the spiral channel 7 into a cover channel 8 , which is formed by the machine housing 6 and a front cover 9 screwed to this end. In the cover channel 8 is a screwed to the end cover 9 , in the front machine housing 6 telltale projecting oil cooler 10 for cooling lubricating oil by the coolant is arranged, which is then out of the oil cooler 10 in a longitudinal channel 11 and to the individual cylinders 12 in the machine housing 6 becomes.

Spiralkanal 7 und Deckelkanal 8 sind durch einen Verbindungs­ kanal 13 hydraulisch miteinander verbunden, der tunnelartig innerhalb des Maschinengehäuses 6 liegt. Zur Stirnseite der Brennkraftmaschine hin wird der Verbindungskanal 13 durch ein Wandteil 14 als Teil des Maschinengehäuses 6 begrenzt, der die voneinander getrennten Dichtflächen 15, 16 sowohl für den Pumpengehäusedeckel 4 als auch für den Stirndeckel 9 trägt. Damit wird eine schwierig zu verwirklichende unmittelbare Ab­ dichtung zwischen Pumpengehäusedeckel 4 und Stirndeckel 9 ver­ mieden, gleichzeitig kann der Pumpengehäusedeckel 4 mitsamt dem Pumpenrad 1 leicht ausgetauscht werden.Spiral channel 7 and cover channel 8 are hydraulically connected to each other by a connecting channel 13 , which is tunnel-like inside the machine housing 6 . Towards the front of the internal combustion engine, the connecting duct 13 is delimited by a wall part 14 as part of the machine housing 6 , which carries the mutually separated sealing surfaces 15 , 16 both for the pump housing cover 4 and for the end cover 9 . This avoids a difficult to implement immediate seal between the pump housing cover 4 and the front cover 9 ver, at the same time the pump housing cover 4 together with the impeller 1 can be easily replaced.

Die Mündung 17 des Verbindungskanal 13 in den Deckelkanal 8 liegt etwa in der Trennebene 18 zwischen Maschinengehäuse 6 und Stirndeckel 9. Die Strömung in diesem Bereich wird durch eine gekrümmte Rippe 19 des Maschinengehäuses 6 so umgelenkt, daß die Strömungsrichtung im Bereich der Mündung 17 etwa senkrecht zur Trennebene 18 liegt und damit eine Kurzschlußströmung in den Längskanal 11 weitgehend verhindert wird. Das Kühlmittel durchströmt anschließend mit zweimaliger Umlenkung den Ölkühler 10 teils in dessen Längs- und teils in dessen Querrichtung, so daß eine gute Kühlwirkung in diesem gewährleistet ist.The mouth 17 of the connecting duct 13 in the cover duct 8 lies approximately in the parting plane 18 between the machine housing 6 and the end cover 9 . The flow in this area is deflected by a curved rib 19 of the machine housing 6 so that the flow direction in the area of the mouth 17 is approximately perpendicular to the parting plane 18 and thus a short-circuit flow in the longitudinal channel 11 is largely prevented. The coolant then flows through the oil cooler 10 with two deflections, partly in its longitudinal and partly in its transverse direction, so that a good cooling effect is ensured in the latter.

Claims (5)

1. Flüssigkeitsführung für eine Brennkraftmaschine mit einem Maschinengehäuse, das an einer Stirnseite einen Stirndeckel und eine Flüssigkeitspumpe mit einem Pumpengehäuse trägt, von der aus die geförderte Flüssigkeit durch einen vom Stirndeckel ge­ bildeten Deckelkanal fließt, dadurch gekennzeichnet, daß im Maschinengehäuse (6) ein tunnelartiger Verbindungskanal (13) angeordnet ist mit einerseits einem Anschluß (Spiralkanal 7) an die Flüssigkeitspumpe (2) und anderseits einem Anschluß (Mündung 17) an den Deckelkanal (8) und daß voneinander unab­ hängige Dichtflächen (15, 16) zwischen dem Pumpengehäuse (Pumpengehäusedeckel 4) und dem Maschinengehäuse (6) einerseits und zwischen dem Stirndeckel (9) und dem Maschinengehäuse (6) andererseits oberhalb des Verbindungskanals (13) zwischen des­ sen beiden Anschlüssen verlaufen.1. Liquid guide for an internal combustion engine with a machine housing which carries an end cover on one end face and a liquid pump with a pump housing, from which the pumped liquid flows through a cover channel formed by the end cover, characterized in that a tunnel-like in the machine housing ( 6 ) Connection channel ( 13 ) is arranged with a connection (spiral channel 7) to the liquid pump ( 2 ) and a connection (mouth 17) to the cover channel ( 8 ) and that mutually independent sealing surfaces ( 15 , 16 ) between the pump housing (pump housing cover) 4) and the machine housing ( 6 ) on the one hand and between the end cover ( 9 ) and the machine housing ( 6 ) on the other hand, run above the connecting channel ( 13 ) between the two connections. 2. Flüssigkeitsführung nach Anspruch 1, dadurch gekennzeichnet, daß die Flüssigkeitspumpe (2) eine Kühlmittelpumpe in Spiral­ bauweise ist, deren Spiralgehäuse durch das Maschinengehäuse (6) gebildet ist.2. Liquid guide according to claim 1, characterized in that the liquid pump ( 2 ) is a coolant pump in spiral construction, the spiral housing is formed by the machine housing ( 6 ). 3. Flüssigkeitsführung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß im Deckelkanal (8) ein flüssigkeitsgekühlter Ölkühler (10) angeordnet ist. 3. Liquid guide according to claim 1 or 2, characterized in that a liquid-cooled oil cooler ( 10 ) is arranged in the cover channel ( 8 ). 4. Flüssigkeitsführung nach Anspruch 3, dadurch gekennzeichnet, daß der Ölkühler (10) am Stirndeckel (9) befestigt ist und zu einem Teil stirnseitig in das Maschinengehäuse (6) hineinragt.4. Fluid guide according to claim 3, characterized in that the oil cooler ( 10 ) on the end cover ( 9 ) is attached and partially protrudes on the end face into the machine housing ( 6 ). 5. Flüssigkeitsführung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Ölkühler (10) von dem von der Flüssigkeitspumpe (2) geförderten Kühlmittel zu einem Teil längs und zu einem anderen Teil quer durchströmt wird, wobei eine zweifache Umlenkung der Strömung erfolgt.5. Liquid guide according to claim 3 or 4, characterized in that the oil cooler ( 10 ) from the liquid pump ( 2 ) conveyed coolant is flowed partly along and partly across, with a double deflection of the flow taking place.
DE4326158A 1993-08-04 1993-08-04 Liquid guidance for an internal combustion engine Expired - Fee Related DE4326158C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4326158A DE4326158C2 (en) 1993-08-04 1993-08-04 Liquid guidance for an internal combustion engine
DE59401128T DE59401128D1 (en) 1993-08-04 1994-06-30 Liquid guidance for an internal combustion engine
EP94110167A EP0637681B1 (en) 1993-08-04 1994-06-30 Fluid circuit for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4326158A DE4326158C2 (en) 1993-08-04 1993-08-04 Liquid guidance for an internal combustion engine

Publications (2)

Publication Number Publication Date
DE4326158A1 true DE4326158A1 (en) 1995-02-09
DE4326158C2 DE4326158C2 (en) 1995-05-11

Family

ID=6494434

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4326158A Expired - Fee Related DE4326158C2 (en) 1993-08-04 1993-08-04 Liquid guidance for an internal combustion engine
DE59401128T Expired - Lifetime DE59401128D1 (en) 1993-08-04 1994-06-30 Liquid guidance for an internal combustion engine

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59401128T Expired - Lifetime DE59401128D1 (en) 1993-08-04 1994-06-30 Liquid guidance for an internal combustion engine

Country Status (2)

Country Link
EP (1) EP0637681B1 (en)
DE (2) DE4326158C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013113822A1 (en) * 2013-12-11 2015-06-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft internal combustion engine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018046A1 (en) * 2000-04-12 2001-11-29 Volkswagen Ag Heat exchanger with a housing having a housing cover
DE10021526C2 (en) * 2000-05-03 2002-07-18 Porsche Ag Arrangement for cooling a multi-cylinder internal combustion engine
DE10121063A1 (en) * 2001-04-28 2002-10-31 Bayerische Motoren Werke Ag Water-cooled cylinder head for an internal combustion engine
CN104865074B (en) * 2015-05-29 2017-05-31 安徽江淮汽车集团股份有限公司 A kind of water thermostat of Engine Block Test
FR3055150A1 (en) * 2016-08-16 2018-02-23 Renault S.A.S EXTERNAL CONDUIT OF AN OUTPUT OF A VOLUTE OF A PUMP WITH A HEAT PUMP FLUID OF A THERMAL MOTOR OF A VEHICLE
JP6830429B2 (en) 2017-12-15 2021-02-17 ヤンマーパワーテクノロジー株式会社 engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933902C (en) * 1952-11-23 1955-10-06 Kaelble Gmbh C Liquid-cooled internal combustion engine
DE2502034A1 (en) * 1974-01-24 1975-07-31 Tatra Np END COVER FOR THE CRANKCASE OF AN COMBUSTION ENGINE
DE4211896A1 (en) * 1992-04-09 1993-10-14 Daimler Benz Ag End cover plate for IC engine - has internal chamber for oil cooler with passages for connection to oil pump and coolant pump

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GB474336A (en) * 1936-07-09 1937-10-29 Ford Motor Co Improvements in and relating to circulating pumps for the cooling water of internal combustion engines
JP2562842B2 (en) * 1990-05-01 1996-12-11 日産自動車株式会社 Chain chamber structure of internal combustion engine
US5216984A (en) * 1991-07-26 1993-06-08 Nissan Motor Co., Ltd. V-type internal combustion engine with improved water pump driving arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933902C (en) * 1952-11-23 1955-10-06 Kaelble Gmbh C Liquid-cooled internal combustion engine
DE2502034A1 (en) * 1974-01-24 1975-07-31 Tatra Np END COVER FOR THE CRANKCASE OF AN COMBUSTION ENGINE
DE4211896A1 (en) * 1992-04-09 1993-10-14 Daimler Benz Ag End cover plate for IC engine - has internal chamber for oil cooler with passages for connection to oil pump and coolant pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013113822A1 (en) * 2013-12-11 2015-06-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft internal combustion engine
DE102013113822B4 (en) 2013-12-11 2022-02-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft combustion engine

Also Published As

Publication number Publication date
DE59401128D1 (en) 1997-01-09
DE4326158C2 (en) 1995-05-11
EP0637681A1 (en) 1995-02-08
EP0637681B1 (en) 1996-11-27

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OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE

8327 Change in the person/name/address of the patent owner

Owner name: HUFENDIEK, ERNST-WILHELM, DIPL.-ING., 70619 STUTTG

Owner name: WERNER, JOHANNES, DIPL.-ING., 22359 HAMBURG, DE

8339 Ceased/non-payment of the annual fee