WO2001094789A1 - Pompe - Google Patents

Pompe Download PDF

Info

Publication number
WO2001094789A1
WO2001094789A1 PCT/EP2001/006300 EP0106300W WO0194789A1 WO 2001094789 A1 WO2001094789 A1 WO 2001094789A1 EP 0106300 W EP0106300 W EP 0106300W WO 0194789 A1 WO0194789 A1 WO 0194789A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
pressure
housing cover
fastening means
housing
Prior art date
Application number
PCT/EP2001/006300
Other languages
German (de)
English (en)
Inventor
Delphine Denis
Original Assignee
Luk Fahrzeug-Hydraulik Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luk Fahrzeug-Hydraulik Gmbh & Co. Kg filed Critical Luk Fahrzeug-Hydraulik Gmbh & Co. Kg
Priority to EP01943473A priority Critical patent/EP1292772A1/fr
Priority to DE10192362T priority patent/DE10192362D2/de
Publication of WO2001094789A1 publication Critical patent/WO2001094789A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface

Definitions

  • the invention relates to a pump with a housing in which a housing recess is formed, in which a pump unit with a pump element which can be driven to rotate in a pump chamber is arranged, at least one pressure plate which laterally delimits the pump chamber, at least one suction and at least one Pressure area within the pump chamber, a housing cover closing the housing recess, against which the pressure plate rests or is formed in one piece with the housing cover, and with fastening means engaging on the housing and housing cover, the pumped medium under pressure being at least one in the region of the pressure plate during operation of the pump Print field generated on the pressure plate.
  • Pumps of this type are known, for example, as vane pumps, blocking vane pumps or roller cell pumps.
  • the pump element of the pump unit which can be driven in rotation is a rotor which can be driven via a drive shaft and which, in the case of vane cells and roller cell pumps, has vanes or rollers arranged in rotor recesses. With the vane pump, the vanes are guided in slots in the self-contained pump chamber wall.
  • the rotor is designed as a contour element and moves the blades up and down as it rotates. In the known pumps are within
  • the pump chamber is provided with at least one suction and at least one pressure area.
  • the housing recess is closed by a housing cover on which the pressure plate is in direct contact or is made in one piece with the housing cover.
  • the housing cover is fastened to the housing with fastening means. These are designed, for example, as screws which pass through the housing cover and are screwed into an internal thread formed in the housing.
  • This game is also referred to as ring-rotor game, since the pump chamber is somewhat wider than the rotor, that is to say the pump element is designed so that the pressure plate (s) do not lie directly against the rotor. It is therefore an object of the invention to provide a pump in which the volumetric and hydromechanical efficiency are improved.
  • a pump which has a housing in which a housing recess is formed, in which a pump unit is arranged.
  • the pump unit has a pump chamber in which a pump element which can be driven in rotation is arranged.
  • the pump unit also has at least one pressure plate which laterally delimits the pump chamber on one side. At least one suction and at least one pressure area are formed within the pump chamber.
  • the housing recess is closed by a housing cover on which the at least one pressure plate rests or is formed in one piece with it. Fasteners which hold the housing cover to the housing act on the housing cover and on the housing.
  • the pump is characterized in that at least two first fastening means engage the housing cover at a distance from one another in such a way that they lie on an imaginary straight line that spans the at least one pressure field.
  • the pressure plate is formed in one piece with the housing cover, this combination component can be produced particularly cost-effectively. In addition, it can be ensured in a simple manner that the fastening means are optimally aligned with respect to the pressure fields.
  • a preferred embodiment is characterized in that the straight line spans the central axis of the housing cover.
  • the straight line thus runs approximately in the middle of the housing cover, so that this straight line quasi forms an axis of symmetry. Since the pressure field lies below this straight line, the pressure forces also act approximately in the middle of the housing cover.
  • the double-clamped bending beam results from the two-sided clamping by the fastening means, the force in the area of the pressure field acting approximately centrally on this bending beam, so that a very symmetrical deflection of the housing cover results.
  • a particularly preferred exemplary embodiment is distinguished in that the housing cover is essentially quadrangular, in particular square, in cross section.
  • the housing cover is thus at least mirror-symmetrical with respect to an axis, so that the compressive forces introduced into the housing cover are correspondingly distributed symmetrically, thereby further improving the symmetrical deflection of the housing cover.
  • At least two first fastening means engage at the corners of the square housing cover.
  • the imaginary straight line thus forms a diagonal of the housing cover.
  • openings are formed on the housing cover through which the first fastening means engage.
  • the housing cover can be attached to the housing with little effort, for example with screws or threaded bolts.
  • At least two second fastening means engage the housing cover, an imaginary straight line between these two fastening means spanning the at least one suction area. This further reduces the deflection of the housing cover.
  • All fastening means that is to say the first and second fastening means, act on the corners of the housing cover, which is preferably square. If the housing cover is in particular square, it is preferably provided that each fastening means is arranged offset by approximately 90 ° to an adjacent fastening means. The housing cover is therefore clamped symmetrically so that the forces resulting from the pressure fields can be absorbed approximately evenly on the fastening means, that is to say can be compensated for.
  • a conveying means inlet is formed in the area of the suction area, which can be implemented as a so-called suction kidney.
  • a conveyor outlet is correspondingly formed on the further pressure plate, which can in particular be designed as a so-called pressure kidney.
  • the pump chamber is preferably formed by a pump chamber ring on which the at least one pressure plate bears. It is thus clear that the inlet and the outlet can also be formed on this pump chamber ring.
  • a preferred embodiment is characterized in that the cover-side pressure plate has a cavity which has the shape of the opposite pressure plate trained funding outlet.
  • a conveyor inlet can be formed on the cover-side pressure plate.
  • first fastening means viewed radially from the inside out
  • second fastening means - viewed radially from the inside outwards - engage the housing cover in such a way that they lie behind the inlet for the pumped medium.
  • first and second fastening means are arranged approximately centrally behind the inlet or cavity. This ensures that the first fastening means are located approximately in the middle of the pressure fields, as a result of which the deflection of the housing cover can be further reduced or optimized.
  • the pump chamber has two suction and two pressure areas and correspondingly at least two pressure fields and that the imaginary straight line spans the at least two pressure fields.
  • the two pressure ranges are directly opposite one another.
  • the suction areas so that when the pump element rotates, the rotating delivery chambers alternately pass through a pressure and suction area.
  • the fastening means engage the housing cover in such a way that the imaginary straight line
  • a particularly symmetrical and low cover deflection is achieved above the pressure fields, which has a particularly positive effect on the volumetric efficiency of the pump and also allows the hydromechanical efficiency to be improved.
  • the number of fasteners, each of which should lie on a straight line, each of which spans at least two pressure fields, could be increased accordingly.
  • Figure 1 is a greatly simplified pump in a sectional side view
  • FIGS. 1 and 1 each show an embodiment of a housing cover 2 and 3 of the pump of Figure 1.
  • FIG. 1 shows, in a highly simplified manner, a pump 1 in cross section, which comprises a housing 2, in which a housing recess 3 is formed.
  • the housing recess 3 is closed by a housing cover 4.
  • the housing cover 4 is fixed to the housing 2 by means of fastening means 5.
  • the fastening means 5 can be realized as screws with a screw head or as a threaded bolt, on which fastening means with an internal thread can be screwed on.
  • the fastening means 5 engage on the housing cover 4 and hold it on the housing 2.
  • intermediate elements can also be arranged between the fastening means 5 and the housing cover 4, which transfer the clamping forces that occur when the fastening means 5 are fixed to the housing cover 4.
  • fastening means receptacles 6 are provided in the housing 2, into which the fastening means engage.
  • the fastener receptacles 6 are preferably threaded holes. If the fastening means receptacles 6 are provided on a collar of the housing 2 designed as a flange, they can also be realized as openings through which the fastening means 5 engage.
  • a counter-fastening element with an internal thread is then preferably arranged at each end of a fastening means 5.
  • a pump unit 7 is arranged in the housing recess 3 and has a pump chamber 8, which consists of a pump chamber ring 9 and at least one Pressure plate 10 is formed, which lies laterally on the pump chamber ring 9.
  • the other side of the pump chamber ring can be closed by the bottom 11 of the housing recess 3.
  • a second pressure plate 12 can also bear laterally on the pump chamber ring 9.
  • the pump chamber 8 can be circular in cross-section or also essentially elliptical.
  • the opening 13 of the pump chamber ring is circular or essentially elliptical in cross section.
  • the pressure plates 10 and 12 can be designed in cross section.
  • a pressure chamber 14 which is arranged purely by way of example between the base 11 and the pressure plate 12. However, it can be arranged anywhere in the housing 2.
  • the pressure chamber 14 has a connection to the pump chamber 8 in any case.
  • the pump chamber thus has at least one delivery outlet.
  • the pump chamber 8 has a conveying means inlet which can be connected to a tank for the conveying medium.
  • the medium delivered by a pump element 15 which can be driven in rotation is introduced into the pressure chamber 14, which has a connection to a consumer connection (not shown here).
  • the pump element 15 which can be driven in rotation is the above-mentioned rotor of a vane, barrier vane or roller cell pump.
  • This pump element 15 can be driven in rotation via a drive shaft, not shown here, which can be mounted in the housing 2.
  • the housing cover 4 and the pressure plate 10 are preferably formed in one piece, the housing cover 4 having a greater radial extent than the pressure plate 10 or the cover-side pressure plate 10 protrudes laterally. With its radially outer edge region 16, the housing cover 4 lies on the edge of the housing. Openings 17 are formed in this edge region 16, through which the fastening means 5 engage. Correspondingly, the openings 17 can be essentially circular in cross section.
  • Figure 2 shows a first embodiment of a one-piece component in side view corresponding to the section line II-II in Figure 1.
  • the one-piece component includes the housing cover 4 and the pressure plate 10.
  • the same parts as in Figure 1 are provided with the same reference numerals. In this respect, reference is made to their description.
  • the housing cover 4 is essentially square and has the openings 17 in its corner regions through which the fastening means 5 engage.
  • At least one conveying means inlet 19 can be formed in the side surface 18 of the pressure plate 10 facing the pump chamber 8, which can be implemented as a so-called suction kidney 20.
  • at least one cavity 21 is introduced in the side surface 18, the cross section of which can be adapted to a pressure kidney 22 known per se, which can be present as a conveyor outlet 21 ′ on the opposite pressure plate 12.
  • two cavities 21 and two funding inlets 19 are provided.
  • the conveyor outlets 21 'on the pressure plate 12 can be designed as so-called pressure kidneys 22.
  • suction areas 23 are thus in the area of the suction kidneys 20; the pressure areas 24 lie in the area of the pressure kidneys or conveyor outlets 21 '.
  • the direction of rotation of the pump element 15 is counterclockwise. It is thus clear that - seen in the direction of rotation of the pump element 15 - a notch K can be made in the side surface 18 at the beginning of each cavity 21, said notch having a connection to the cavity 21.
  • An annular groove 25 can also be supplied with conveying means via the conveying means outlet 21 ′ or cavity 21. The so-called under-wing supply is realized via this groove 25 if the pump 1 is designed as a vane pump.
  • a pressure field 26 only builds up when a delivery chamber lies in the area of the delivery outlet 21 ′ or cavity 21.
  • this delivery chamber is located between the inside of the pump chamber ring 9 and the element trained rotor and the pressure plates limited.
  • the delimitation of individual delivery chambers from one another is carried out by vane wings which more or less protrude beyond the inside 27 of the pump chamber ring 9 depending on the rotational position of the rotor.
  • the pressure field 26 essentially results as a circular sector, the angular range of the sector varying during the operation of the pump, depending on how many delivery chambers have a fluid connection to the delivery Have middle outlet 21 'or cavity 21, which lies in the associated pressure field 26.
  • the pressure field 26 can therefore extend over a larger angular range than the pressure kidney 22 or cavity 21.
  • the first fastening means 5' thus engage the housing cover 4 in such a way that they lie at a distance from one another, their center points 29 lie on the imaginary straight line 28 which, as mentioned above, spans the two pressure fields 26. It is thus also clear that the openings 17 for the first fastening means 5 'can be somewhat offset from those shown here. It only has to be ensured that the straight line 28 spans the two pressure fields 26. The openings 17 for the first fastening means 5 'can be in or counterclockwise be staggered.
  • the imaginary straight line 28 preferably also spans the center 30 of the pressure plate 10 or the housing cover 4, this center 30 lying on a central longitudinal axis of the housing cover 4, which extends perpendicular to the plane of the drawing.
  • the housing cover 4 is essentially square in cross section.
  • the design of the housing cover 4 as a square cover, which can be seen in FIG. 3, is particularly preferred. Otherwise, the same or equivalent parts in FIG. 3 as in FIGS. 1 and 2 are provided with the same reference numerals.
  • the first fastening means 5 ′ Due to the square design of the housing cover 4 according to FIG. 3, the first fastening means 5 ′ have an angular distance or angular offset from the respective adjacent second fastening means 5 ′′, which is approximately 90 °. It can also be seen from FIGS. 2 and 3 that the first fastening means 5 ', seen radially from the inside out, lie behind the cavity 21.
  • the fastening means 5 'or the corresponding openings 17 lie behind the cavities 21 or pressure fields 26.
  • agent 5 ′′ is not absolutely necessary, as can be seen from FIG. It is crucial that the first fastening means 5 ′ engage behind the pressure fields 26, so that the housing disgust 4 can be viewed as a bending beam clamped on both sides, in which the bending force — in FIG.
  • first fastening means 5 ′ can also lie behind each pressure field 26.
  • 1 can also have more than two pressure and suction areas. If more than two pressure ranges are provided and, accordingly, a number of pressure fields are formed during the operation of the pump, then of course more than those in the figures
  • fastening means 5 and 5 'and 5'' shown fastening means 5 and 5 'and 5''.
  • an imaginary straight line 28 then lies over a pair of pressure fields 26 ', on which the center points 29 of the first fastening means 5' lie.
  • six, eight or an even greater number of fastening means 5 can also act on the housing cover 4.
  • the arrangement of the openings 17 for the first fastening means 5 ′ behind the pressure fields 26 in accordance with the invention reduces the deflection of the housing cover 4 3-dimensionally uniformly, symmetrically and beyond, so that the positioning of the pump element 15 which can be driven in rotation with respect to the side face 18 of the pressure plate 10 can be optimized in order to reduce the leakage gap between the pump element 15 and the side surface 18, so that the volumetric efficiency of the pump 1 is improved. Since the lid deflection is less and 3-dimensional symmetrical, the rotor-ring play could also be increased, which improves the hydromechanical efficiency of the pump 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une pompe comprenant un carter qui comporte un évidement dans lequel est logée une unité pompe présentant un élément de pompe entraînable en rotation dans une chambre de pompe. Cette pompe présente également au moins une plaque de pression qui délimite latéralement la chambre de pompe, au moins une zone d'aspiration et au moins une zone de refoulement à l'intérieur de la chambre de pompe, ainsi qu'un couvercle de carter obturant l'évidement du carter. La plaque de compression prend appui sur ce couvercle de carter ou forme une seule pièce avec ce dernier. Cette pompe comprend enfin des moyens de fixation coopérant avec le carter et le couvercle. Lorsque la pompe est en fonctionnement, le fluide refoulé sous pression produit au moins un champ de pression au niveau de la plaque de pression. L'invention est caractérisée en ce qu'au moins deux premiers moyens de fixation, à distance l'un de l'autre, coopèrent avec le couvercle de sorte qu'ils sont situés sur une droite imaginaire s'étendant sur le ou les champs de pression.
PCT/EP2001/006300 2000-06-05 2001-06-01 Pompe WO2001094789A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01943473A EP1292772A1 (fr) 2000-06-05 2001-06-01 Pompe
DE10192362T DE10192362D2 (de) 2000-06-05 2001-06-01 Pumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10027813.2 2000-06-05
DE2000127813 DE10027813A1 (de) 2000-06-05 2000-06-05 Pumpe

Publications (1)

Publication Number Publication Date
WO2001094789A1 true WO2001094789A1 (fr) 2001-12-13

Family

ID=7644759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/006300 WO2001094789A1 (fr) 2000-06-05 2001-06-01 Pompe

Country Status (3)

Country Link
EP (1) EP1292772A1 (fr)
DE (2) DE10027813A1 (fr)
WO (1) WO2001094789A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223952A1 (de) * 2013-11-22 2015-05-28 Mahle International Gmbh Fluidpumpe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007162554A (ja) * 2005-12-13 2007-06-28 Kayaba Ind Co Ltd ベーンポンプ
CN104819150A (zh) * 2015-04-27 2015-08-05 苏州福润机械有限公司 一种叶片泵配油盘
DE102020105173A1 (de) 2020-02-27 2021-09-02 Fte Automotive Gmbh Pumpenaggregat für einen Antriebsstrang eines Kraftfahrzeugs
DE102020105172A1 (de) 2020-02-27 2021-09-02 Fte Automotive Gmbh Drehschieberpumpe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500889A1 (fr) * 1981-03-02 1982-09-03 Atsugi Motor Parts Co Ltd Pompe a palettes
US5006053A (en) * 1987-03-12 1991-04-09 Seno Cornelio L Vertical single blade rotary pump
EP0555909A1 (fr) * 1992-02-03 1993-08-18 Van Doorne's Transmissie B.V. Pompe rotative avec boîtier de pompe simplifié
DE29505568U1 (de) * 1994-07-15 1995-06-08 Luk Fahrzeug Hydraulik Hydraulische Fördereinrichtung, insbesondere Flügelzellenpumpe
US6022201A (en) * 1996-05-14 2000-02-08 Kasmer Hydristor Corporation Hydraulic vane pump with flexible band control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050010A (en) * 1960-02-23 1962-08-21 Thompson Ramo Wooldridge Inc Pressure loaded pump
US3499390A (en) * 1968-04-11 1970-03-10 Parker Hannifin Corp Rotary pump
US3752609A (en) * 1972-02-17 1973-08-14 Sperry Rand Corp Vane pump with fluid-biased end walls

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500889A1 (fr) * 1981-03-02 1982-09-03 Atsugi Motor Parts Co Ltd Pompe a palettes
US5006053A (en) * 1987-03-12 1991-04-09 Seno Cornelio L Vertical single blade rotary pump
EP0555909A1 (fr) * 1992-02-03 1993-08-18 Van Doorne's Transmissie B.V. Pompe rotative avec boîtier de pompe simplifié
DE29505568U1 (de) * 1994-07-15 1995-06-08 Luk Fahrzeug Hydraulik Hydraulische Fördereinrichtung, insbesondere Flügelzellenpumpe
US6022201A (en) * 1996-05-14 2000-02-08 Kasmer Hydristor Corporation Hydraulic vane pump with flexible band control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223952A1 (de) * 2013-11-22 2015-05-28 Mahle International Gmbh Fluidpumpe

Also Published As

Publication number Publication date
DE10027813A1 (de) 2001-12-13
EP1292772A1 (fr) 2003-03-19
DE10192362D2 (de) 2003-05-22

Similar Documents

Publication Publication Date Title
DE2829417A1 (de) Kreiskolbenmaschine
DD237533A5 (de) Seitenkanalpumpe mit kraefteausgleich
DE19850158A1 (de) Seitenkanal-Kraftstoffpumpe
DE102014010170A1 (de) Drehflügelmotor
DE3400594A1 (de) Stroemungsmaschine
DE2059158C3 (de) Hydraulischer Motor in Flügelzellenbauart
WO2007039405A1 (fr) Pompe a palettes
EP1309799B1 (fr) Compresseur a vis
DE4322240A1 (de) Hydraulische Zahnradmaschine (Pumpe oder Motor), insbesondere Innenzahnradmaschine
DE102014212920A1 (de) Schaufelpumpe
DE4143466C2 (de) Steuerscheibe für Flügelzellenpumpe
DE1653921C3 (de) Rotationskolbenpumpe
WO2001094789A1 (fr) Pompe
DE3048984A1 (de) Rotationslaufradpumpe oder -motor
DE3444392C2 (fr)
DE102004021216B4 (de) Hochdruck-Innenzahnradmaschine mit mehrfacher hydrostatischer Lagerung pro Hohlrad
DE1728419A1 (de) Fluessigkeitsringverdichter
EP0810373A2 (fr) Pompe à palettes
DE3242983A1 (de) Regelbare fluegelzellenpumpe
DE4109149C2 (de) Steuerscheibe für Flügelzellenpumpe
EP2286088B1 (fr) Pompe
EP0474001B1 (fr) Pompe à engrenages internes pour fluide hydraulique
EP1461534B1 (fr) Pompe
DE102019127388A1 (de) Fluidversorgung von Unterflügelkammern einer Flügelzellenpumpe
DE2857227A1 (de) Fluessigkeitsringpumpe

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DE GB JP US

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 TR

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

Ref document number: 2001943473

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001943473

Country of ref document: EP

REF Corresponds to

Ref document number: 10192362

Country of ref document: DE

Date of ref document: 20030522

Kind code of ref document: P

WWE Wipo information: entry into national phase

Ref document number: 10192362

Country of ref document: DE

WWW Wipo information: withdrawn in national office

Ref document number: 2001943473

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8607