WO2000070230A1 - Procede et dispositif pour limiter, detecter et aspirer des milieux fluides - Google Patents

Procede et dispositif pour limiter, detecter et aspirer des milieux fluides Download PDF

Info

Publication number
WO2000070230A1
WO2000070230A1 PCT/DE2000/001622 DE0001622W WO0070230A1 WO 2000070230 A1 WO2000070230 A1 WO 2000070230A1 DE 0001622 W DE0001622 W DE 0001622W WO 0070230 A1 WO0070230 A1 WO 0070230A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow
blow
impellers
frontal
suction
Prior art date
Application number
PCT/DE2000/001622
Other languages
German (de)
English (en)
Inventor
Georg Emanuel Koppenwallner
Original Assignee
Röhl-Hager, Hannelore
Koppenwallner, Georg
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
Priority claimed from DE19957962A external-priority patent/DE19957962B4/de
Application filed by Röhl-Hager, Hannelore, Koppenwallner, Georg filed Critical Röhl-Hager, Hannelore
Priority to AU59620/00A priority Critical patent/AU5962000A/en
Priority to EP00945540A priority patent/EP1218641A1/fr
Publication of WO2000070230A1 publication Critical patent/WO2000070230A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0616—Outlets that have intake openings

Definitions

  • the invention relates to a method and a device for restricting, detecting and suctioning off fluid media by means of suction and blow-out effects using suction devices, e.g. Extractor hoods, fume cupboards and the like.
  • suction devices e.g. Extractor hoods, fume cupboards and the like.
  • Extractor hoods to increase the inflow to the filter or suction openings, for example in the form of frontal flows. These flows can be generated either by separate conveyors or by tapping the suction stream.
  • the invention is applicable to gases and liquids, so that in general one speaks of currents, while corresponding processes in the terminology of ventilation technology are expressed by "bubbles".
  • the frontal vortex volume flow is often drawn off by the suction fan after the pressure has been increased.
  • the ratio of pipeline resistance to resistance for the frontal flow within the device is determined by the ratio of the suction volume flow to the frontal volume flow, so that such a device must be adapted to the pipeline.
  • This problem also occurs in suction devices for air curtains, jet seals, fume cupboards (eg according to DE 32 08 622) and similar systems in which supply air is used in addition to the suction air (please refer to Recknagel, Springer-Verlag 1999, 69th edition, pages 1441, 1650, 1652 and 1656).
  • the object of the invention is to solve this problem by generating suction and inflow volume flows that are independent of one another.
  • the invention proposes to achieve suction and inflow volume flows that are independent of one another with a single drive unit and thus to avoid that the pipeline resistance to the inflow, e.g. the blowing air or frontal vortex volume flow.
  • the outflow spaces for the suction volume flows and the frontal volume flows are designed separately, but are supplied with the aid of the single drive unit, so that these volume flows are independent of one another.
  • this will e.g. achieved in that the outflow is already divided in the conveyor or just behind.
  • this can be achieved by using a plurality of separate impellers, subdivided impellers, by multiple spiral taps or by a subdivision directly outside the impeller.
  • a double-flow fan is used for a suction device with a frontal vortex generator, one volume flow being the frontal flow and the other volume flow being a suction volume flow.
  • two or more impellers are coaxially arranged one above the other and are driven by a common motor. The air drawn in is conveyed into two separate blow-out rooms.
  • the impellers are designed in such a way that they either have the same outside and / or inside diameter, have the same or different heights, the diameters of the impellers are otherwise different, or the profile of the blades of the two impellers is designed differently.
  • the desired volume flows for the blown air and for the exhaust air can be set with the desired pressure increases.
  • the sealing of the blow-out spaces from one another expediently already takes place between these impellers or in a double impeller in that an intermediate ring is inserted between the impellers or a groove is provided between the impellers, into which the partition wall between the blow-out spaces engages.
  • the inflow is expediently already in front of the impellers with the help of separating elements, preferably downstream with respect to the filter, divided. An even more expedient separation of the volume flows can thus be achieved.
  • a blower with a high impeller is used, the blow-out space of which is divided by a wall which is optionally adjustable in height.
  • the ratio of the conveyed volume flows can be adjusted by moving the wall accordingly.
  • a separate tap is provided, which is referred to as a "horizontal tap".
  • the blow room partition is inserted directly behind the impeller next to a joint.
  • an extractor hood is used use an impeller of great height det.
  • the blow-out space for the blown air has a central deflection wall which is arranged between the blower and the frontal vortex generator in order to achieve an air flow of the blown air flows from the outside inwards.
  • a blow room partition with walls parallel to the fan axis is used.
  • an air guide housing with a plurality of spiral taps is provided in order to achieve different sized blow-out spaces.
  • a spiral tap is provided for the suction volume flow, further spiral taps provide the inflows for the frontal vortex generator.
  • the blown air is divided into two streams with the help of a deflection and dividing wall, which flow from the outside to the inside. This has advantages for the structure of the blow-out flow, which is then directed from the outside inwards. This is particularly useful for frontal vortex generators that work with continuous slots.
  • an arrangement with a single fan in which, in contrast to conventional front hoods with two fans, blown air and exhaust air are separated from one another into a blow-out space and a blown air space.
  • the exhaust air can be used as recirculation air or exhaust air.
  • delivery be carried out in two blow-out spaces by means of a two-sided suction fan.
  • two or more separate impellers deliver from two or more suction spaces that are separate from or connected to one another.
  • the flow can be tapped in the case of such and the above-described one-sided suction fan arrangements in the form of a horizontal tap, a spiral tap or a combination thereof, one or more taps being possible per impeller or per impeller segment.
  • adjustable and / or adjustable frontal vortex generators are used to adjust the volume flows of the suction device to extreme exhaust air line resistance (regulation ) and to set the exit angle and / or the outflow volume of the frontal flow (adjustment).
  • This adjustment or regulation of frontal vortex generators can be achieved by means of displacement, folding, rotating or deformation elements. It can be used on all frontal vortex generators with slots or perforated strips.
  • the frontal vortex generator has vertical bores.
  • the frontal flow that is to say the oblique outflow from the outflow side, is brought about by the displacement element projecting into the outlet opening.
  • Such a frontal vortex generator can be realized in a particularly simple manner as a stamping element made of thin sheet metal with a displacement element, which can be firmly fitted as a shaped element.
  • the adjustment / regulation can be carried out by the person operating the suction device during operation. If the volume flow ratios are changed due to dirty filter elements, such a suction device can easily be readjusted.
  • FIG. 1 is a schematic representation of a blower for a fume cupboard with two coaxial impellers
  • 2 shows another embodiment of the invention with intake space separation
  • FIG. 3 shows a schematic representation of an extractor hood with the fan according to the invention with two blow-out spaces and an optional recirculation, in a side view
  • FIG. 4 shows the representation according to FIG. 3 in top view, another embodiment of an extractor hood according to the invention
  • FIG. 6 is a plan view of the illustration according to Fig. 5
  • Fig. 7 is a schematic side view of an extractor hood according to the invention with a pull-out and extended screen
  • Fig. 8 shows the 7 with the screen retracted
  • FIG. 9 a schematic illustration of a two-sided suction fan with two separate impellers
  • FIG. 10 an arrangement corresponding to FIG. 9 with merged impellers
  • FIG. 11 an arrangement corresponding to FIG. 10, but with three blow-out rooms
  • Fig. 12 an extractor hood corresponding to Fig. 10 with a vertical axis
  • Fig. 13 a fan according to Fig. 10 or 11 with a horizontal axis orientation
  • Fig. 14 a schematic representation of an island extractor hood with opposite front vortex generators
  • Fig. 15 one schematic representation of an impeller with intake chamber separation
  • FIG. 15a shows a modified embodiment of a blower with a drive unit
  • Fig. 17 shows another modified embodiment of a drive unit
  • Fig. 18 shows a division of separate impellers on several axes
  • 20 shows schematic basic representations of vortex-type generators corresponding to representations a), b), c) and d).
  • a supply air opening 2 is formed in a blower housing 1, through which the supply air flow 3 is fed via a supply air guide wall 4 to an impeller arrangement 5, which consists of two impellers 6 and 7 arranged coaxially one above the other, the impeller 6 being a frontal vortex blower and the impeller 7 is a suction fan.
  • the impeller 6 provides a frontal vortex flow 8, the impeller 7 a suction flow 9.
  • the impellers 6 and 7 are driven together by a drive unit 10. They have a common impeller axis 1 1.
  • the frontal vortex flow 8 is discharged into a blow-out space 12 for the frontal flow, and the suction flow 9 into the blow-out space 13 for the exhaust air flow.
  • FIG. 2 A modified embodiment of the blower according to FIG. 1 is shown in FIG. 2.
  • the impeller assembly 5 is in the form of two coaxial impellers 6, 7 of different heights; the two impellers are separated from one another by an intermediate ring 16, the blow-out spaces for the frontal flow and the exhaust air by a partition 14.
  • the top side of the blower housing is divided on the filter surface 17 by a separating plate arrangement 20 for the intake flows into a blown air volume flow 18 and an exhaust air volume flow 19 such that the inflow is separated before the impellers 6, 7, and thus the quality of the separation of the volume flows is improved.
  • FIG. 3 and 4 show a frontal extractor hood with a blower and two blow-out spaces and an optional recirculation from the blow-out space exhaust air and / or from the blow-out space frontal flow
  • FIG. 3 a schematic side view
  • the extractor hood has a housing 21 with front wall 22 and rear wall 23, an exhaust air duct 24, a fan impeller arrangement 25, a drive 10, a deflection wall 26, through which the fan air is divided into the blow-out space 13 for exhaust air and the blow-out space 12 for frontal flow a partition 27 between the blow-out spaces 12 and 13, which divides the fan air flow into a recirculation flow 28 from the exhaust air space 13 and a recirculation flow 29 from the frontal flow space 12, a frontal vortex generator 30 and an outlet slot 31.
  • the partition wall 27, which divides the blowing spaces is arranged essentially perpendicular to the fan axis, ie horizontally. This tap is called a horizontal tap.
  • the blowing space separation starts directly behind the impeller arrangement 25 following a gap 32.
  • the deflection wall 26 between the impeller arrangement 25 and the frontal vortex generator 31 is arranged, for example, in the center of the blow-out space and results in an air flow of the blown air flows 33a, 33b from the outside inwards. This enables a complete or partial recirculation flow 28, 29 from the outlet flows 12, 13 of the frontal flow and the exhaust air 24 into the surrounding space.
  • FIGS. 5 and 6 Another embodiment of an extractor hood according to the invention is shown in FIGS. 5 and 6.
  • the blowing space is partitioned with walls arranged parallel to the fan axis, and an air guide housing 34 is provided which corresponds to the deflection and partition walls 26, 27 according to FIGS. 3 and 4.
  • This air guide housing 34 has a plurality of spiral taps 35, 36, 37 (the reference lines denote the sealing edges for the respective blow-out spaces), the tap 35 being the tap for the suction volume flow, and the taps 36, 37 with the linear ken and right inflow are the taps for the frontal vortex generator 30.
  • the blown air from the impeller arrangement 25 is divided into two streams 38, 39 with the aid of the deflection and dividing wall 34, which streams can flow from the outside inwards (arrows 40, 41) after exiting the hood housing.
  • This is advantageous for the structure of the blow-out flow, which is then also directed from the outside inwards, particularly in the case of frontal vortex generators with continuous slots.
  • the extractor hood can be provided with a screen which can be extended and retracted in the direction of arrow 43 and which is indicated by 42 in FIGS. 7 and 8, so that the frontal vortex generator 30 has one counter the user of the hood directed wall 44 is assigned to guide the frontal vortex flow 45 at the lower end of the housing.
  • the pull-out screen 42 is preferably designed such that the entire blowing duct can be pulled out with a frontal vortex generator, as shown in FIG. 7.
  • a single impeller is shown at 25, which is assigned to two separate blowing spaces, while in FIG. 8, instead of a single impeller 25, a double impeller 46 is shown, which consists of two impellers 46a and 46b, the impeller 46b compared to the impeller 46a has a lower height and a smaller outside diameter with the same inside diameter.
  • FIG. 9 shows how a two-sided suction blower is used to convey into two blow-out spaces, two separate impellers being shown which convey from two suction spaces 51a, 51b.
  • These suction spaces can be separated from one another or connected to one another, and can also be of identical design. As indicated at 51, they can also consist of several segments.
  • the embodiment according to FIG. 10 shows how the two impellers according to FIG. 9 are brought together around the drive unit 10. This is when using an off a conventional technical solution.
  • the discharge space separation 52 in the impeller can optionally be a fixed wall or can be carried out according to the configurations shown in FIGS. 1 and 2.
  • Fig. 1 1 shows an arrangement that can supply three blow-out spaces by frontal vortex flows 8a and 8b and a suction flow 9.
  • the flow can be tapped in the case of blower arrangements according to FIG. 10 or FIG. 11 either with the aid of a horizontal tap (FIGS. 3, 4) or by means of a spiral tap (FIGS. 5, 6). Both a horizontal tap and a spiral tap can also be combined with one another within a blower arrangement.
  • FIG. 12 schematically shows an extractor hood with a fan according to FIG. 10 with a vertical axis.
  • the suction spaces 51 a and 51 b are conveyed, 51 a representing a suction space directly above the filter surface 50, and the suction space 51 b either connected to the space 51 a via channels 53 or separately therefrom with other filter elements, e.g. can be connected to the left and right of 51 a (corresponding to Fig. 9).
  • the three existing blow-out flows can be combined with one another as desired.
  • the frontal flow from 8a, 8b is effective in the outer areas, the exhaust air flow 9 from the central area.
  • FIG. 14 shows a section through an island extractor hood with opposing frontal vortex generators, with bled air being drawn off from the two outer impeller regions.
  • FIG. 15 shows an impeller with a suction space partition with an opening 56. In FIG. 15a this is shown as a top view, in FIG. 15b as a side sectional view.
  • An intake pipe 55 leads to this opening, which is either permanently connected to the outer space 51b or which can rotate with the impeller. If necessary, the intake pipe can also be dispensed with.
  • FIGS. 16 and 17 show two modifications of a drive unit 57 which has a passage and is located on one side or on both sides of the blow-out space partition 56.
  • separate impellers can also be distributed over several axes, as indicated in FIG. 18.
  • the power transmission 54 can take place in an arrangement with separate axes from a common drive unit 10 by means of V-belts, chains, friction wheels, gears, hydraulic connections, connecting axes with bevel gears, etc.
  • 19 schematically shows different methods of regulating and adjusting frontal vortex generators, with a) a folding device 58, b) displacement elements 59, c) rotating elements 60 and d) a deformation device 61, for example in the form of an elastic plastic plate or a spring plate are shown.
  • 20 shows frontal vortex generators, namely with a) of the vortex type (perforated strips) or slotted vortex type (blow-out slot) 62, with b) of the jet vortex jet vortex type 63, with c) of the Coanda vortex type 64.
  • the associated perforated strips 65 and blowout slots 66 are shown on the outflow surface 67 of the frontal vortex generators.
  • the non-adjustable frontal vortex generator (comparable to 62) with a blow-out slot is shown in EP 0 891 519 in FIG. 6, and with a perforated strip in DE 199 1 1 850 with FIG. 5.
  • the frontal vortex generator 62 uses vertical holes.
  • the frontal flow namely the oblique outflow from the outflow side 67, is only caused by the displacement element 59 projecting into the outlet opening 65, 66.
  • This frontal vortex generator is very easy to use as a stamping element made of thin sheet metal Sliding element 59 can be produced. This element can be firmly fitted as a “shaped element” during manufacture.
  • Another embodiment of the invention can include adjustment by the operator of the suction device during operation. If the volume flow conditions change due to contaminated filter elements, the suction device can be readjusted or simply be readjusted.

Abstract

L'invention concerne un procédé pour limiter, aspirer et détecter des milieux fluides, dans lequel des écoulements volumétriques d'air soufflé sont générés par l'intermédiaire d'une unité d'entraînement unique (10) et les écoulements volumétriques sont refoulés dans au moins deux chambres d'évacuation séparées (12, 13). On utilise, à cet effet, un ventilateur à plusieurs flux, ayant un flux d'air frais (3) et une unité d'entraînement commune (10). Le ventilateur à plusieurs flux comporte un rotor double (5) pour un ventilateur d'aspiration et un ventilateur à tourbillon frontal. Les rotors (6, 7) refoulent les écoulements volumétriques dans une chambre d'évacuation formant un écoulement frontal (8) et dans une chambre d'évacuation d'air formant un écoulement d'évacuation (9).
PCT/DE2000/001622 1999-05-19 2000-05-19 Procede et dispositif pour limiter, detecter et aspirer des milieux fluides WO2000070230A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU59620/00A AU5962000A (en) 1999-05-19 2000-05-19 Method and device for localising, detecting and suctioning liquid media
EP00945540A EP1218641A1 (fr) 1999-05-19 2000-05-19 Procede et dispositif pour limiter, detecter et aspirer des milieux fluides

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19923024 1999-05-19
DE19923024.2 1999-05-19
DE19957962A DE19957962B4 (de) 1999-05-19 1999-12-02 Verfahren und Einrichtung zum Eingrenzen, Erfassen und Absaugen von fluiden Medien
DE19957962.8 1999-12-02

Publications (1)

Publication Number Publication Date
WO2000070230A1 true WO2000070230A1 (fr) 2000-11-23

Family

ID=26053430

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/001622 WO2000070230A1 (fr) 1999-05-19 2000-05-19 Procede et dispositif pour limiter, detecter et aspirer des milieux fluides

Country Status (3)

Country Link
EP (1) EP1218641A1 (fr)
AU (1) AU5962000A (fr)
WO (1) WO2000070230A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB532758A (en) * 1939-09-07 1941-01-30 Howden James & Co Ltd Improvements in or relating to fans or pumps
DE2717462A1 (de) * 1977-04-20 1978-10-26 Schrag Heizungs Lueftungs Klim Radialgeblaese, insbesondere fuer die klimatechnik
US4550650A (en) * 1982-03-10 1985-11-05 Waldner Laboreinrichtungen Gmbh & Co. Hood for the extraction of gases, vapors and suspended matter
US4902199A (en) * 1986-10-14 1990-02-20 Xerox Corporation Universal blower
EP0402810A1 (fr) * 1989-06-12 1990-12-19 ESKA MEDICAL LÜBECK MEDIZINTECHNIK GmbH & Co. Ensemble d'implantation
DE19613513A1 (de) * 1996-04-04 1997-10-09 Roehl Hager Hannelore Verfahren zum Eingrenzen, Erfassen und Absaugen von Dunst, Staub oder dergleichen sowie Einrichtung zur Durchführung des Verfahrens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB532758A (en) * 1939-09-07 1941-01-30 Howden James & Co Ltd Improvements in or relating to fans or pumps
DE2717462A1 (de) * 1977-04-20 1978-10-26 Schrag Heizungs Lueftungs Klim Radialgeblaese, insbesondere fuer die klimatechnik
US4550650A (en) * 1982-03-10 1985-11-05 Waldner Laboreinrichtungen Gmbh & Co. Hood for the extraction of gases, vapors and suspended matter
US4902199A (en) * 1986-10-14 1990-02-20 Xerox Corporation Universal blower
EP0402810A1 (fr) * 1989-06-12 1990-12-19 ESKA MEDICAL LÜBECK MEDIZINTECHNIK GmbH & Co. Ensemble d'implantation
DE19613513A1 (de) * 1996-04-04 1997-10-09 Roehl Hager Hannelore Verfahren zum Eingrenzen, Erfassen und Absaugen von Dunst, Staub oder dergleichen sowie Einrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP1218641A1 (fr) 2002-07-03
AU5962000A (en) 2000-12-05

Similar Documents

Publication Publication Date Title
EP0891519B1 (fr) Procede et dispositif pour confiner, retenir et aspirer des fumees, des poussieres et appareil pour employer cette methode
EP0126399A1 (fr) Conduit de fluide présentant une construction réduite
DE1428191A1 (de) Kreiselgeblaese
DE3706772C2 (fr)
DE102013005921A1 (de) Fluidisierungsapparat
DE2556382C3 (de) Zentrifugalwindsichter
DE19629220B4 (de) Hochdruck-Gebläse
DE2414610B2 (de) Querstromlüfter
WO2000070230A1 (fr) Procede et dispositif pour limiter, detecter et aspirer des milieux fluides
DE1403060A1 (de) Mittel zur Erzielung guenstiger statischer Druecke bei Stroemungsmaschinen mit unsymmetrischen Austrittsgeschwindigkeitsprofilen
DE19957962B4 (de) Verfahren und Einrichtung zum Eingrenzen, Erfassen und Absaugen von fluiden Medien
DE19736799C1 (de) Luftauslaßvorrichtung für Lüftungs- und Klimaanlagen
DE60124150T2 (de) Luftauslasseinheit für grosse gebläseanordnung
DE102015116922A1 (de) Belüftungskanal zur Belüftung eines Fahrgastinnenraums eines Kraftfahrzeuges
DE102019107183B4 (de) Ventilatorenanordnung und Entstaubungsanlage
DE3634703C2 (fr)
EP1496318B1 (fr) Dispositif de sortie d'air pour les plafonds
DE2943318C2 (de) Deckenluftauslaß für Lüftungs- und Klimaanlagen
EP0185900B1 (fr) Dispositif de régulation du débit d'air pour ventilateurs
DE102016009597A1 (de) Lüftungsgerät der Haustechnik und Verfahren zur Erzeugung eines vergleichmäßigten Luftstroms
DE102021212202A1 (de) Drosselklappenstellereinheit, Brennstoffzellensystem mit einer derartigen Drosselklappenstellereinheit und Kraftfahrzeug mit einem derartigen Brennstoffzellensystem
DE102007059770A1 (de) Gargerätvorrichtung
WO2023072636A1 (fr) Unité d'actionnement de soupape d'étranglement, système de pile à combustible comprenant une telle unité d'actionnement de soupape d'étranglement, et véhicule à moteur comprenant un système de pile à combustible de ce type
EP4296522A1 (fr) Logement pour roues à aubes radiales de différentes tailles
DE202019105321U1 (de) Zyklonabscheider und Filter mit einem Zyklonabscheider

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BA BG BR BY CA CN CZ EE GE HR HU ID IL IN IS JP KP LT LV MK MX NO NZ PL RO RU SG SI TR UA US YU ZA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2000945540

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000945540

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2000945540

Country of ref document: EP