EP1727985B1 - Modularer volumetrischer verdichter - Google Patents

Modularer volumetrischer verdichter Download PDF

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Publication number
EP1727985B1
EP1727985B1 EP05716893A EP05716893A EP1727985B1 EP 1727985 B1 EP1727985 B1 EP 1727985B1 EP 05716893 A EP05716893 A EP 05716893A EP 05716893 A EP05716893 A EP 05716893A EP 1727985 B1 EP1727985 B1 EP 1727985B1
Authority
EP
European Patent Office
Prior art keywords
delivery
suction
coupling element
connection
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP05716893A
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English (en)
French (fr)
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EP1727985A1 (de
Inventor
Gianni Candio
Enrico Faccio
Andrea Tonin
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Refcomp SpA
Original Assignee
Refcomp SpA
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Publication date
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Publication of EP1727985A1 publication Critical patent/EP1727985A1/de
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Publication of EP1727985B1 publication Critical patent/EP1727985B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making

Definitions

  • the present invention concerns a volumetric compressor, particularly suited to be used in air conditioning and/or refrigeration systems.
  • volumetric compressors are used, which are suitable for circulating a carrier fluid inside a closed circuit for air conditioning in closed spaces or for the refrigeration of cold rooms and similar structures.
  • volumetric compressors manufactured according to the prior art are all constituted by a casing in which it is possible to identify a carrier fluid suction chamber, provided with a suction valve and a carrier fluid delivery chamber, provided with a delivery valve, with a pair of screw rotors included between them.
  • volumetric compressors are available on the market; in particular, when they are used for the construction of air conditioning systems, they are provided, inside the casing, with a semi-hermetic motor unit for the operation of the rotors and with a lubricating oil separator positioned before the delivery valve.
  • volumetric compressors indeed, are equipped with a hydraulic circuit for the lubrication of the rotors that is suited to improve their efficiency; the lubricating oil is mixed with the carrier fluid inside the compressor and consequently it must be separated from the latter before being conveyed to the air conditioning circuit
  • volumetric compressors similar to those described above, are generally used, that is, compressors comprising a casing inside which there is a semi-hermetic motor unit including a suction chamber provided with a suction valve and a delivery chamber provided with a delivery valve, with a pair of screw rotors included between them, in which, however, there is no lubricating oil separator.
  • volumetric compressor used for example for particularly aggressive fluids like ammonia, differs from those previously described owing to the fact that it is not provided with a motor unit inside the compressor casing.
  • the compressor called “open type” compressor, is equipped with drive and coupling means for connection to an external motor unit for the operation of the rotors.
  • US 4,780,061 discloses a screw compressor assembly comprising an oil separator downstream of the compressor discharge port.
  • the main drawback is represented by the fact that in order to meet the customer's different needs, according to the combinations described above, the manufacturer must produce different compressors.
  • a further drawback is represented by the fact that if the customer needs a compressor with a configuration different from the one installed, he should obviously replace it with a new one capable of satisfying the new requirements of the system.
  • a situation of this kind occurs, for example, if the customer needs to pass from an external motor unit to a semi-hermetic motor unit associated with the suction head of the compressor.
  • the present invention aims to eliminate all the drawbacks listed above.
  • the possibility to connect the same compressor body to two different types of suction head on the suction side and to two different types of delivery head on the delivery side makes it possible to achieve all the compressor configurations required by the market, using five different components, instead of making four separate compressors.
  • the possibility to removably connect the suction and delivery heads to the compressor body, through a connection with flange and counterflange, allows the configuration of the compressor to be modified even after its first installation.
  • the volumetric compressor of the invention comprises a pair of rotors 2 cooperating with each other and housed inside a compressor body 3 in which it is possible to identify a first flange 4 arranged on the suction side of said compressor body 3 and a second flange 5 arranged on the delivery side of said compressor body 3 , said first flange 4 being suited to be coupled with a suction head 6, 7 and said second flange 5 being suited to be coupled with a delivery head 8, 9 of said volumetric compressor 1 .
  • the suction head 6, 7 is provided with a first counterflange 10, 11 suited to be connected to said first flange 4 and includes a coupling element 12 for connection to a suction pipe, or a coupling element 13 for connection to a suction pipe in combination with a motor unit 14, and said delivery head 8, 9 is provided with a second counterflange 15, 16 suited to be connected to said second flange 5 and includes a coupling element 17 for connection to a delivery pipe, or a coupling element 18 for connection to a delivery pipe in combination with an oil separator 19.
  • Figures from 2 to 5 show the different configurations 50, 60, 70, 80 of the compressor 1 of the invention, that can be achieved by connecting to the compressor body 3 the different suction heads 8, 9 and delivery heads 10, 11 shown in Figure 1, by fastening each flange 4, 5 of the compressor body 3 to the counterflange 10, 11, 15, 16 of the suction head 6, 7 or of the delivery head 8, 9 .
  • Figure 2 shows the configuration 50 that involves the installation, on the suction side of the compressor body 3 , of a head 7 comprising a coupling element 13 for connection to a suction pipe in combination with a motor unit 14 , preferably but not necessarily semi-hermetic, while on the delivery side of the compressor body 3 there is a head 8 comprising a coupling element 18 for connection to a delivery pipe in combination with an oil separator 19 .
  • the semi-hermetic motor unit 14 that operates the rotors 2 housed inside the compressor body 3 , this is generally constituted by an electric motor cooled by the carrier fluid itself.
  • each volumetric compressor 80 is equipped with an independent, semi-hermetic motor unit 14, while the filtration of the carrier fluid takes place in a common external oil separator that serves all the compressors making up the system, towards which all the delivery pipes of each compressor converge.
  • volumetric compressors 80 of the type shown in Figure 5 are used, in which the suction head 7 , connected to the compressor body 3 on the suction side, comprises the coupling element 13 in combination with the motor unit 14 , while the delivery head 9 connected to the compressor body 3 on the delivery side comprises only the delivery valve conveying the carrier fluid to the external oil separator.
  • Figure 4 shows a further configuration 70 of the volumetric compressor 1 of the invention, in which the suction head 8 , connected to the compressor body 3 on the suction side, comprises only the coupling element 12 for connection to a suction pipe, while the delivery head 8 connected to the compressor body 3 on the delivery side comprises the coupling element 18 for connection to a delivery pipe in combination with the oil separator 19 .
  • the last configuration 60 of the compressor 1 of the invention is that shown in Figure 3, in which the suction head 6 connected to the compressor body 3 on the suction side comprises only the coupling element 12 for connection to a carrier fluid suction pipe, while the delivery head 9 , connected to the compressor body 3 on the delivery side, comprises only the coupling element 17 for connection to a carrier fluid delivery pipe.
  • the suction head 6 is equipped with drive means 20 suited to be set in motion by the motor unit of the system and to transmit motion to the rotors 2 housed inside the compressor body 3 .
  • This type of compressor 60 is particularly suited to be installed in systems that use particularly aggressive carrier fluids, for example ammonia, which may damage the motor unit in case of contact with the latter.
  • particularly aggressive carrier fluids for example ammonia
  • this may be sized according to the power required and to the type of carrier fluid used in the circuit, though maintaining a first flange 4 , arranged on the suction side, and a second flange 5 , arranged on the delivery side, suited to house corresponding counterflanges 10, 11, 15, 16 for the connection of the suction heads 6, 7 and the delivery heads 8, 9 shown in Figure 1.
  • the sizing of the compressor body 3 is generally achieved by varying the longitudinal development of the rotors 2 housed inside it and consequently the longitudinal development of the compressor body itself.
  • volumetric compressor 1, 50, 60, 70, 80 in which it is substantially possible to identify three interchangeable functional units, that is, a compressor body 3, a suction head 6, 7 and a delivery head 8, 9, makes the compressor 1, 50, 60, 70, 80 of the invention modular and, therefore, easy to be adapted to the different needs of the user, simply by assembling the components in different ways.
  • the coupling element 12, 13 for connection to a suction pipe for the carrier fluid at low pressure and the coupling element 17,18 for connection to a delivery pipe for the carrier fluid at high pressure may be constituted, according to the customer's needs, by a suction and/or delivery valve or, alternatively, by a suction and/or delivery coupling.
  • connection of the suction heads 6, 7 and delivery heads 8, 9 to the compressor body 3 it takes place through a coupling between flange 4, 5 and counterflange 10, 11, 15, 16 that is made integral through suitable fastening means 21 of the known type, for example screws.
  • volumetric compressor of the invention achieves all the aims set.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Verfahren der Herstellung und des Zusammenbaus, in Abhängigkeit der gewünschten Konfigurationen, eines Volumenkompressors (1; 50; 60; 70; 80) von jenem Typ, der ein Paar Rotoren (2) umfasst, die zusammenwirken und im Inneren eines Kompressorkörpers (3) untergebracht sind,
    wobei der Kompressorkörper einen ersten Flansch (4), der an der Ansaugseite des Kompressorkörpers (3) angeordnet ist, und einen zweiten Flansch (5), der an der Abgabeseite des Kompressorkörpers (3) angeordnet ist, aufweist, wobei der erste Flansch (4) dazu geeignet ist, mit einem Saugkopf (6, 7) gekoppelt zu werden, und der zweite Flansch (5) dazu geeignet ist, mit einem Abgabekopf (8, 9) des Volumenkompressors (1) gekoppelt zu werden, dadurch gekennzeichnet, dass es die folgenden Vorgänge umfasst:
    - das Herstellen eines ersten Saugkopfs (6), der ein Kopplungselement (12) zu einer Saugleitung umfasst, und
    - das Herstellen eines zweiten Saugkopfs (7), der ein Kopplungselement (13) zur Verbindung mit einer Saugleitung in Kombination mit einer Motoreinheit (14) umfasst,
    - wobei der erste und der zweite Saugkopf (6, 7) jeweils mit einem ersten Gegenflansch (10, 11) ausgestattet sind, die geeignet sind, mit dem ersten Flansch (4) des Kompressorkörpers (3) verbunden zu werden;
    - das Herstellen eines ersten Abgabekopfs (8), der ein Kopplungselement (17) zu einer Abgabeleitung umfasst, und
    - das Herstellen eines zweiten Abgabekopfs (9), der ein Kopplungselement (18) zur Verbindung mit einer Abgabeleitung in Kombination mit einem Ölabscheider (19) umfasst,
    - wobei der erste und der zweite Abgabekopf (8, 9) jeweils mit einem zweiten Gegenflansch (15, 16) ausgestattet sind, die geeignet sind, mit dem zweiten Flansch (5) des Kompressorkörpers (3) verbunden zu werden;
    - das Koppeln des ersten Flanschs (4) des Kompressorkörpers (3) mit dem Gegenflansch (10, 11) von einem beliebigen aus dem ersten und dem zweiten Saugkopf (6, 7);
    - das Koppeln des zweiten Flanschs (5) des Kompressorkörpers (3) mit dem Gegenflansch (15, 16) von einem beliebigen aus dem ersten und dem zweiten Abgabekopf (8, 9).
  2. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass der erste Saugkopf (6) ein Kopplungselement (12) zur Verbindung mit einer Saugleitung umfasst und dass der zweite Abgabekopf (9) ein Kopplungselement (17) zur Verbindung mit einer Abgabeleitung umfasst.
  3. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass der erste Saugkopf (6) ein Kopplungselement (12) zur Verbindung mit einer Saugleitung umfasst und dass der erste Abgabekopf (8) ein Kopplungselement (18) zur Verbindung mit einer Abgabeleitung in Kombination mit einem Ölabscheider (19) umfasst.
  4. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass der zweite Saugkopf (7) ein Kopplungselement (13) zur Verbindung mit einer Saugleitung in Kombination mit einer Motoreinheit (14) umfasst und dass der zweite Abgabekopf (9) ein Kopplungselement (17) zur Verbindung mit einer Abgabeleitung umfasst.
  5. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass der zweite Saugkopf (7) ein Kopplungselement (13) zur Verbindung mit einer Saugleitung in Kombination mit einer Motoreinheit (14) umfasst und dass der erste Abgabekopf (8) ein Kopplungselement (18) zur Verbindung mit einer Abgabeleitung in Kombination mit einem Ölabscheider (19) umfasst.
  6. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass das Kopplungselement (12, 13) zur Verbindung mit einer Saugleitung aus einem Einlassventil besteht.
  7. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass das Kopplungselement (12, 13) zur Verbindung mit einer Saugleitung aus einem Einlassanschlussstück besteht.
  8. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass das Kopplungselement (17, 18) zur Verbindung mit einer Abgabeleitung aus einem Abgabeventil besteht.
  9. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass das Kopplungselement (17, 18) zur Verbindung mit einer Abgabeleitung aus einem Abgabeanschlussstück besteht.
  10. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass die Motoreinheit (14) vom halbhermetischen Typ ist.
  11. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass dieses Befestigungsmittel (21) umfasst, die zur dauerhaften Verbindung des ersten und des zweiten Flanschs (4, 5) mit dem ersten bzw. dem zweiten Gegenflansch (10, 11, 15, 16) geeignet sind.
  12. Verfahren der Herstellung und des Zusammenbaus nach Anspruch 11), dadurch gekennzeichnet, dass die Befestigungsmittel (21) aus Schrauben bestehen.
  13. Verfahren der Herstellung und des Zusammenbaus gemäß dem Verfahren nach Anspruch 1), dadurch gekennzeichnet, dass die Motoreinheit (14) aus einem Elektromotor besteht.
EP05716893A 2004-03-04 2005-03-03 Modularer volumetrischer verdichter Expired - Lifetime EP1727985B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000035A ITVI20040035A1 (it) 2004-03-04 2004-03-04 Compressore volumetrico modulare
PCT/EP2005/050936 WO2005085642A1 (en) 2004-03-04 2005-03-03 Modular volumetric compressor

Publications (2)

Publication Number Publication Date
EP1727985A1 EP1727985A1 (de) 2006-12-06
EP1727985B1 true EP1727985B1 (de) 2007-09-05

Family

ID=34917563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05716893A Expired - Lifetime EP1727985B1 (de) 2004-03-04 2005-03-03 Modularer volumetrischer verdichter

Country Status (7)

Country Link
US (1) US20070269325A1 (de)
EP (1) EP1727985B1 (de)
CN (1) CN1930395A (de)
AT (1) ATE372463T1 (de)
DE (1) DE602005002356D1 (de)
IT (1) ITVI20040035A1 (de)
WO (1) WO2005085642A1 (de)

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DE102006058355A1 (de) * 2006-03-10 2007-09-13 Brueninghaus Hydromatik Gmbh Kombi-Pumpengehäuse für mehrere Nenngrößen
US7695259B2 (en) 2006-09-21 2010-04-13 Eaton Corporation Rotary fluid pressure device with modular multi-speed control mechanism
DE102006062065A1 (de) * 2006-12-29 2008-07-03 Robert Bosch Gmbh Axialkolbenmaschine mit einem einen radial erweiterten Innenraumabschnitt aufweisenden Gehäuse
DE202009012158U1 (de) 2009-09-08 2011-02-03 Hugo Vogelsang Maschinenbau Gmbh Drehkolbenpumpe
DE202010011626U1 (de) * 2010-08-20 2010-10-21 Hugo Vogelsang Maschinenbau Gmbh Drehkolbenpumpe
DE102011014961A1 (de) * 2011-03-24 2012-09-27 Rotorcomp Verdichter Gmbh Schraubenverdichteranlage
WO2017027657A1 (en) 2015-08-11 2017-02-16 Carrier Corporation Screw compressor economizer plenum for pulsation reduction
US10830239B2 (en) 2015-08-11 2020-11-10 Carrier Corporation Refrigeration compressor fittings
US10941776B2 (en) 2015-10-02 2021-03-09 Carrier Corporation Screw compressor resonator arrays
CN111608907B (zh) * 2020-05-13 2021-04-27 东风汽车集团有限公司 一种模块化变速箱电动油泵

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Also Published As

Publication number Publication date
CN1930395A (zh) 2007-03-14
ATE372463T1 (de) 2007-09-15
DE602005002356D1 (de) 2007-10-18
WO2005085642A1 (en) 2005-09-15
ITVI20040035A1 (it) 2004-06-04
US20070269325A1 (en) 2007-11-22
EP1727985A1 (de) 2006-12-06

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