DE102004011608A1 - Heat exchanger of a vehicle air conditioning system - Google Patents
Heat exchanger of a vehicle air conditioning system Download PDFInfo
- Publication number
- DE102004011608A1 DE102004011608A1 DE102004011608A DE102004011608A DE102004011608A1 DE 102004011608 A1 DE102004011608 A1 DE 102004011608A1 DE 102004011608 A DE102004011608 A DE 102004011608A DE 102004011608 A DE102004011608 A DE 102004011608A DE 102004011608 A1 DE102004011608 A1 DE 102004011608A1
- Authority
- DE
- Germany
- Prior art keywords
- flat tubes
- heat exchanger
- exchanger according
- air
- flow
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/0246—Heat-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 heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/053—Heat-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 the conduits being straight
- F28D1/0535—Heat-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 the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0073—Gas coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2240/00—Spacing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/02—Coatings; Surface treatments hydrophilic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Der für eine Fahrzeugklimaanlage vorgesehene Wärmetauscher (1) hat parallel zueinander und vertikal verlaufende Flachrohre (2), die endseitig gemeinsam in je einem Anschlussverteiler (10, 18) münden. Die mit Abstand einander gegenüberstehenden Oberflächen benachbarter Flachrohre (2) begrenzen glattflächige, enge Strömungskanäle (8, 9) für die Luftdurchströmung, so dass auskondensierte Nässe leicht abfließen kann und ein Ansetzen von Verunreinigungen verhindert wird. Die bei kompakter Bauweise des Wärmetauschers (1) ausreichend große, luftseitige Oberfläche wird durch den geringen Abstand zwischen den Flachrohren (2) erreicht. Durch die entsprechend größere Anzahl von Flachrohren (2) ergibt sich betriebsmittelseitig ein großer Durchströmungsquerschnitt mit entsprechend geringem Druckverlust, so dass die Flachrohre (2) durch Strömungsumlenkungen in den Anschlussverteilern des Wärmetauschers (1) mehrfach durchströmt werden können. Der geringe Abstand wird durch gebündelte Anbindung von über eine Abkröpfung (36) zusammengefasster Rohrendbereiche (35) ermöglicht. Durch parallel zueinander und schräg zur Längsrichtung der Flachrohre (2) verlaufende, sickenartige Ausprägungen (11) der Flachrohre (2) haben sowohl die luftseitigen Strömungskanäle (8, 9) als auch für das Betriebsmedium der Klimaanlage vorgesehene Innenkanäle der Flachrohre (2) einen wellenförmigen, den Wärmeübergang begünstigenden Verlauf. Die glatte, luftseitige Oberfläche der Flachrohre (2) begünstigt zusammen ...The intended for a vehicle air conditioning heat exchanger (1) has parallel to each other and vertically extending flat tubes (2), the end together in a respective terminal manifold (10, 18) open. The spaced opposite surfaces of adjacent flat tubes (2) limit smooth, narrow flow channels (8, 9) for the flow of air, so that condensed moisture can easily drain and a deposition of impurities is prevented. The compact design of the heat exchanger (1) sufficiently large, air-side surface is achieved by the small distance between the flat tubes (2). Due to the correspondingly larger number of flat tubes (2), the operating medium side results in a large flow cross-section with correspondingly low pressure loss, so that the flat tubes (2) can be repeatedly flowed through by flow deflections in the connection manifolds of the heat exchanger (1). The small distance is made possible by bundled connection of over a bend (36) summarized Rohrendbereiche (35). By mutually parallel and obliquely to the longitudinal direction of the flat tubes (2) extending, bead-like forms (11) of the flat tubes (2) both the air-side flow channels (8, 9) and provided for the operating medium of the air conditioning inner channels of the flat tubes (2) have a wave-shaped , the heat transfer favoring course. The smooth, air-side surface of the flat tubes (2) favors together ...
Description
Die Erfindung betrifft einen Wärmetauscher einer Fahrzeugklimaanlage, mit parallel zueinander verlaufenden Flachrohren, die endseitig gemeinsam in je einem Anschlussverteiler münden, von denen mindestens einer Rohranschlüsse für die Einbindung in das Rohrsystem der Klimaanlage und zumindest der diesem gegenüberliegende mindestens eine Trennwand für die Aufteilung der Rückströmung zu den Flachrohren aufweist.The The invention relates to a heat exchanger of a Vehicle air conditioning system, with parallel flat tubes, the end together in a common connection distributor, from those at least one pipe connections for integration into the pipe system the air conditioning and at least the opposite at least one partition for the Distribution of the return flow to the Having flat tubes.
Wärmetauscher
dieser Art sind in zahlreichen Ausführungsformen bekannt, wie z.B.
die
Die Ausrüstung der Rohre mit Rippen, einschliesslich ihrer Verlötung mit den Rohren, ist mit einem gossen Aufwand verbunden und oft fehlerhaft aufgrund von unvollständig hergestellten Lötkontakten entlang der über verhältnismässig grosse Strecken verlaufenden Lötbereiche. Die dabei zwischen den Rohren und ihren Rippen ausgebildeten zahlreichen Winkelräume bilden Sammelstellen für sich aus der Luft absetzende, teilweise organische Schmutzpartikel, mit der Folge von hygienischen Belastungen und Geruchsbildung in der vom Wärmetauscher in den Fahrgastraum strömenden Luft. Auch bilden die Oberflächen der gewellten Rippen und diese Winkelräume umfangreichen Sammelraum für Nässe, die sich beim Kühlbetrieb der Klimaanlage durch Kondensation aus der abgekühlten Luft ausbildet und somit nicht nach unten wegfliessen kann. Ein wahlweiser Betrieb eines solchen Wärmetauschers zum Heizen mittels der Klimaanlage würde ausserdem zu einem plötzlichen Verdampfen der gesamten Nässe und Kondensieren an der Frontscheibe des Fahrzeuges führen, so dass stattdessen mit entsprechendem Aufwand eine Möglichkeit zur Umschaltung auf einen parallel geschalteten zweiten Wärmetauscher vorzusehen ist.The equipment the tubes with ribs, including their soldering with the tubes, is with associated with a pouring effort and often faulty due to incomplete manufacturing solder contacts along the over relatively big Stretching soldering areas. The case between the tubes and their ribs trained numerous angle spaces form collection points for airborne, partially organic particles of dirt, with the result of hygienic stress and odor in that of the heat exchanger pouring into the passenger compartment Air. Also form the surfaces the corrugated ribs and these angular spaces extensive plenum for wet, that is during cooling operation the air conditioner is formed by condensation from the cooled air and thus can not flow down. An optional operation of a such heat exchanger for heating by means of the air conditioning would also cause a sudden Vaporizing the entire wet and Condensation on the windscreen of the vehicle lead, so that instead with a corresponding effort a possibility for switching to a second heat exchanger connected in parallel is to be provided.
Der Erfindung liegt die Aufgabe zugrunde, einen Wärmetauscher der genannten Art derart zu verbessern, dass die genannten Nachteile bekannter Ausführungen vermieden werden und er entsprechend bei kompakter Bauweise eine verbessern Wärmeübertragung gewährleistet, kostengünstig herstellbar ist und sowohl im Kühlbetrieb als auch im Heizbetrieb insbesondere einer CO2-Klimaanlage verwendbar ist. Die Lösung dieser Aufgabe erfolgt erfindungsgemäss dadurch, dass die einander gegenüberstehenden Oberflächen benachbarter Flachrohre kontaktfrei zwischen sich glattflächige Strömungskanäle für die Luftdurchströmung bilden. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Patentansprüche und der folgenden Beschreibung anhand der Zeichnungen zu entnehmen. Es zeigt:The invention has the object to improve a heat exchanger of the type mentioned in such a way that the mentioned disadvantages of known designs are avoided and he ensures a better heat transfer in a compact design, is inexpensive to produce and both in cooling mode and in heating mode, in particular a CO 2 -Air conditioning is usable. The solution of this object is achieved according to the invention in that the opposing surfaces of adjacent flat tubes form contactlessly between smooth-flow channels for the air flow. Advantageous embodiments of the invention are set forth in the dependent claims and the following description with reference to the drawings. It shows:
Ein
erfindungsgemässer
Wärmetauscher
Die
Wärmeaustauschrohre
sind in an sich bekannter Weise als stranggepresste Flachrohre
Um
ohne die eingangs dargelegten Nachteile auf der luftumströmten Aussenseite
der Flachrohre
Durch
die glatten äusseren
Oberflächen
Vorzugsweise
sind diese glatten Oberflächen
Die hydrophile Beschichtung kann z.B. durch eine Oberflächenbehandlung der aus einer Aluminiumlegierung geformten Flachrohre mit Chromsäure erreicht werden, wie es für die Herstellung von Grundierungen z.B. im Flugzeugbau als Chromsäure-Anodisierverfahren an sich bekannt ist.The hydrophilic coating can, for example, by a surface treatment of an aluminum Umlegierung formed flat tubes can be achieved with chromic acid, as it is known for the production of primers, for example in aircraft as chromic acid anodization itself.
Eine
weitere Verbesserung der Nässeabweisung
von den glatten Oberflächen
Vorzugsweise
sind die Ausprägungen
Vorzugsweise
sind die sickenartigen, beispielsweise geradlinigen Ausprägungen
Für eine Verbesserung
des Anströmwinkels der
horizontal zuströmenden
Luft zu den schräg
verlaufenden, sickenartigen Ausprägungen
Die
freien Endbereiche der Flachrohre
Die
die Sekundärkammern
Für eine verbesserte
Aufteilung des bei diesem Ausführungsbeispiel
bodenseitig zuströmenden Betriebsmediums
auf die durch Stegwände
Um
die Flachrohre
Die
Anschlussverteiler
Zur
weiteren Verbesserung des luftseitigen Wärmeübergangs an den glatten Oberflächen
Der
Wärmetauscher
Bei
diesem Ausführungsbeispiel
wird jedes Flachrohr
Die
Möglichkeit
der Aufteilung der Strömung des
Betriebsmittels der Klimaanlage in eine verhältnismässig grosse Anzahl von Teilströmen mit
mehreren Umlenkungen und entsprechend längeren Strömungswegen, ergibt sich als
weiterer, wesentlicher Vorteil der Erfindung, denn bei vorgegebener
Grösse der
luftseitigen, äusseren
Wärmeübergangsfläche, ist
aufgrund der grösseren
Anzahl von Flachrohren
Da
das im Kühlbetrieb
zuströmende
Betriebsmedium je nach Belastung der Klimaanlage aus einem unterschiedlichen
Anteil aus flüssiger
und dampfförmiger
Phase besteht, ergibt sich die Tendenz einer von Schwerkraft bzw.
von Trägheitskräften beeinflussten,
ungleichmässigen
Verteilung des Anteils an flüssiger
Phase auf die Zu- und Abströmbreite
des Wärmetauschers
Ein
stufenförmiger
Verlauf der Bodenfläche der
Längskanäle
Claims (19)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011608A DE102004011608A1 (en) | 2004-03-18 | 2004-03-18 | Heat exchanger of a vehicle air conditioning system |
PCT/EP2005/002537 WO2005088219A1 (en) | 2004-03-18 | 2005-03-10 | Heat exchanger for a motor vehicle air conditioning system |
DE112005000305T DE112005000305A5 (en) | 2004-03-18 | 2005-03-10 | Heat exchanger of a vehicle air conditioning system |
US11/522,481 US20070023172A1 (en) | 2004-03-18 | 2006-09-15 | Heat exchanger for a motor vehicle air conditioning system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011608A DE102004011608A1 (en) | 2004-03-18 | 2004-03-18 | Heat exchanger of a vehicle air conditioning system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004011608A1 true DE102004011608A1 (en) | 2005-10-13 |
Family
ID=34962946
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004011608A Withdrawn DE102004011608A1 (en) | 2004-03-18 | 2004-03-18 | Heat exchanger of a vehicle air conditioning system |
DE112005000305T Withdrawn DE112005000305A5 (en) | 2004-03-18 | 2005-03-10 | Heat exchanger of a vehicle air conditioning system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112005000305T Withdrawn DE112005000305A5 (en) | 2004-03-18 | 2005-03-10 | Heat exchanger of a vehicle air conditioning system |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070023172A1 (en) |
DE (2) | DE102004011608A1 (en) |
WO (1) | WO2005088219A1 (en) |
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DE102011003649A1 (en) * | 2011-02-04 | 2012-08-09 | Behr Gmbh & Co. Kg | Heat exchanger |
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US7806171B2 (en) * | 2004-11-12 | 2010-10-05 | Carrier Corporation | Parallel flow evaporator with spiral inlet manifold |
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CN101680689B (en) | 2007-05-22 | 2012-11-14 | 贝洱两合公司 | Heat exchanger |
US20100115771A1 (en) * | 2008-11-10 | 2010-05-13 | Mark Johnson | Heat exchanger, heat exchanger tubes and method |
FR2945860B1 (en) * | 2009-05-22 | 2011-07-29 | Marine Tech Mediterranee | HEAT EXCHANGER MADE FROM A THREE-DIMENSIONAL HOLLOW LAMINATE PANEL |
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US8763424B1 (en) | 2013-09-30 | 2014-07-01 | Heat Pump Technologies, LLC | Subcooling heat exchanger adapted for evaporator distribution lines in a refrigeration circuit |
FR3016958B1 (en) * | 2014-01-30 | 2019-05-17 | Valeo Systemes Thermiques | HEAT EXCHANGER FOR MOTOR VEHICLE |
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2004
- 2004-03-18 DE DE102004011608A patent/DE102004011608A1/en not_active Withdrawn
-
2005
- 2005-03-10 DE DE112005000305T patent/DE112005000305A5/en not_active Withdrawn
- 2005-03-10 WO PCT/EP2005/002537 patent/WO2005088219A1/en active Application Filing
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2006
- 2006-09-15 US US11/522,481 patent/US20070023172A1/en not_active Abandoned
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2319342A1 (en) | 2006-04-04 | 2011-05-11 | adidas International Marketing B.V. | Shoe |
DE102011003649A1 (en) * | 2011-02-04 | 2012-08-09 | Behr Gmbh & Co. Kg | Heat exchanger |
US9599409B2 (en) | 2011-02-04 | 2017-03-21 | Mahle International Gmbh | Heat exchanger for vehicle with two block design |
Also Published As
Publication number | Publication date |
---|---|
US20070023172A1 (en) | 2007-02-01 |
DE112005000305A5 (en) | 2008-07-03 |
WO2005088219A1 (en) | 2005-09-22 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8128 | New person/name/address of the agent |
Representative=s name: KREISER, A., DIPL.-ING., PAT.-ANW., 70327 STUTTGAR |
|
8143 | Lapsed due to claiming internal priority |