EP1165965B1 - Seitenkanalverdichter - Google Patents

Seitenkanalverdichter Download PDF

Info

Publication number
EP1165965B1
EP1165965B1 EP00920569A EP00920569A EP1165965B1 EP 1165965 B1 EP1165965 B1 EP 1165965B1 EP 00920569 A EP00920569 A EP 00920569A EP 00920569 A EP00920569 A EP 00920569A EP 1165965 B1 EP1165965 B1 EP 1165965B1
Authority
EP
European Patent Office
Prior art keywords
side channel
cross
section
outlet port
compressor according
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
EP00920569A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1165965A1 (de
Inventor
Dieter Rietschle
Fritz-Martin Scholz
Markus Britsche
Oliver Mayer
Reinhard Garczorz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and Co KG
Original Assignee
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and 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 Rietschle Werner GmbH and Co KG, Werner Rietschle GmbH and Co KG filed Critical Rietschle Werner GmbH and Co KG
Publication of EP1165965A1 publication Critical patent/EP1165965A1/de
Application granted granted Critical
Publication of EP1165965B1 publication Critical patent/EP1165965B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps

Definitions

  • the invention relates to a side channel compressor according to the preamble of claim 1.
  • a generic side channel compressor is known from DE-A-876 285. With this Side channel blower tapers the cross section of the side channel from the inlet opening continuously to the outlet opening. The rejuvenation is said to improve the efficiency of the Increase the side channel blower by creating an even one in the side channel Pressure increase and an increase in volume flow results.
  • the cross section of the The side channel is approximately elliptical.
  • Another side channel compressor is known from DE 197 08 952 A1.
  • This too Side channel blower tapers the cross section of the side channel from the inlet opening continuously to the outlet opening.
  • the rejuvenation is said to improve the efficiency of the Increase the side channel blower by creating an even one in the side channel Pressure increase and an increase in volume flow results.
  • the cross section of the According to this prior art, the side channel is rectangular, but with rounded corners.
  • the object of the invention is to provide a side channel compressor with an increased To achieve efficiency.
  • the flow conditions in the side channel are in the side channel compressor according to the invention optimized by the transitions of the wall areas delimiting the cross section very much are soft, so that transitions in the real sense are missing. This is through the Elliptical shape of the side channel reached.
  • the gas flows from the blades of the compressor one, based on the blade axis, axial speed component in the Side channel and is deflected in this without causing extreme losses can. This results in a higher volume flow and a higher one Compressor capacity.
  • the elliptical formation leads to thanks to the bevels associated with it a better manufacturability of the side channel by means of sand or die casting processes.
  • the section of the side channel with an elliptical cross section can extend over the entire length extend of the side channel or only over a part.
  • the section should include elliptical cross section on about half the flow path between the inlet opening and Start exhaust opening.
  • the gas to be compressed already has one in this area experience noticeable compression to which the cross section should be adapted by is reduced.
  • the section with an elliptical cross section should end in the area of the outlet opening where there is also the highest compression.
  • the optimal performance of the compressor can only be achieved by tuning the Reduction of the cross section of the side channel to the type of gas and the efficiency of the compressor, in particular its speed, can be achieved. It is e.g. Not optimal if the cross section decreases extremely or too little, because the gas flow in the the first case is blocked and in the second case the compressibility of the gas is not complete is exploited.
  • the cross-sectional area of the side channel in the section with elliptical Cross section is according to the preferred embodiment to the ratio of Adjusted density increase of the gas by reducing the cross-sectional area accordingly becomes.
  • An optimal reduction of the cross-sectional area results if one is adopted approximately adiabatic isentropic compression of the gas to be compressed, the Cross-sectional area is reduced according to the decreasing gas volume.
  • index 1 being the specific sizes at the inlet and index 2 identifies the specific sizes at the outlet of the side channel.
  • the optimal cross-sectional areas can be found on any Determine the location of the side channel.
  • Another embodiment of the invention provides that the side channel in front of the section with an elliptical cross section has a semicircular cross section. This semicircular The cross section then changes continuously into an increasingly flat ellipse.
  • the width of the side channel should preferably remain constant over its entire length, so that the reduction in cross section only over the reduced depth, but with adapted ellipse shape.
  • the side channel is horseshoe-shaped in a side view trending so that there is a large side channel length. Extensions at the ends of the Side channels form the inlet or outlet opening.
  • the side channel compressor according to the invention can be designed in one or more stages, the cross-sectional area of the inlet opening of a subsequent stage preferably that Cross-sectional area of the outlet opening corresponds to the immediately preceding stage. In order to to prevent the gas in the side channel between successive Stages undergoes a change of state.
  • the individual stages are preferably all provided with a side channel, as before has been defined, i.e. with a continuously decreasing cross-sectional area between Inlet opening and outlet opening. Because the pressure curve with a multi-stage If the compressor is different from a single-stage compressor, the Reduction of the cross-sectional area to be adapted to this effect. So would be the same Pressure increase between the inlet and outlet of a two-stage and a one-stage Compressor in the two-stage compressor only half of the side channel taper per stage compared to that of the single-stage compressor.
  • a drive motor 10 In the side channel blower shown in FIG. 1, there is a drive motor 10, a first stage 12 and a second stage 14 integrated in one unit. With 16 a housing is designated. Impellers 20, 22 of stages 12 and 14 are attached to a drive shaft, which in turn is rotated by the drive motor 10.
  • a first housing cover 30 on the Housing 16 is screwed, has a side channel 32 of the first stage.
  • On the opposite side is connected to the housing 16, a second housing cover 26, which has a side channel 28.
  • the first stage 12 has inlet openings and Outlet openings, which will be explained with reference to Figure 2.
  • the outlet opening of the first stage is through a side channel, not shown, in the housing with the inlet opening second stage 14 connected.
  • the channel and the cross sections of the outlet opening of the first and the inlet opening of the second stage are designed so that none Cross-sectional change between the first and second stage in the area of the side channel is present.
  • the housing cover 30 is shown in FIG. 2 alone.
  • the side channel 32 formed therein is essentially horseshoe-shaped and has a 270 ° extension circular section (extending from section line A to section line E).
  • a Inlet opening 42 upstream of section line A extends over approximately 15 ° and forms one Kind of extension of the side channel 32.
  • Downstream of the section line E is also one Continuous outlet opening 44 is provided.
  • the side channel 32 has the same width from the section line A to the section line E, as can also be seen from the cutting sequence in FIG. 3, which only shows the side channel itself At the beginning, at the section line A, the side channel still has a semicircular shape Cross section, the center of the semicircle even slightly below the plane Surface 46 of the cover 30 is located, from which the side channel 32 extends into the interior of the cover extends. In FIG. 3 the distance 46 from the center M is given as 1 mm.
  • the ellipse half, the side channel defined, so to speak, is compressed with increasing length of the flow path.
  • the Decrease in cross-sectional area is the steadily reduced on the flow path specific volume of the gas to be compressed assuming an adiabatic isentropic Adjusted state change. This increases the efficiency of the side channel blower optimized.
  • the cross section of the side channel 32 which is continuous and continuous from a semicircle changed to an increasingly flat ellipse, is characterized by excellent Flow conditions in the side channel 32, since only slight flow losses occur.
  • the efficiency of the side channel blower is also so high because, as mentioned, the Cross-sectional profile of the change in state of the compressed gas is adapted.
  • FIGS A slightly modified housing cover 130 is shown in FIGS the side channel 132 has a slightly different inlet and outlet area.
  • the inlet area extends over 15 ° to 50 °, as does the outlet area.
  • Numeral 142 is the inlet of the first stage and 144 is the outlet of first stage, which leads to the inlet opening of the second stage.
  • the second stage 14 has a side channel, which is also tapered along its entire length.
  • This side channel also begins with a semicircular cross-section, whereby this Cross-section, however, has an area which corresponds to the area of the side channel at the outlet opening 44 corresponds to the elliptical cross section.
  • the side channel of the second stage then changes continuously to an increasingly flat ellipse, as shown in the figures 2 to 5 is shown.
  • FIG. 6 shows the increase that can be achieved by reducing the side channel cross section of efficiency.
  • Side channel blowers There are three different ones for the courses shown Side channel blowers have been used, which are measured at different speeds were.
  • a side channel blower labeled "Series" has one semicircular cross section without taper.
  • a modified to this Side channel compressor according to the invention with an elliptical cross section has a Cross-section reduction of 15% between inlet opening and outlet opening on and off further compressors a cross-sectional reduction of 30%.
  • Figure 6 not only shows that a significant increase in efficiency is achievable, but also that this Efficiency increase is very dependent on the speed. As explained earlier a cross-sectional reduction by 15%, for example, cannot be lead to an enormous increase in efficiency at different speeds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Massaging Devices (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP00920569A 1999-03-26 2000-03-24 Seitenkanalverdichter Expired - Lifetime EP1165965B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19913950 1999-03-26
DE19913950A DE19913950A1 (de) 1999-03-26 1999-03-26 Seitenkanalverdichter
PCT/EP2000/002624 WO2000058629A1 (de) 1999-03-26 2000-03-24 Seitenkanalverdichter

Publications (2)

Publication Number Publication Date
EP1165965A1 EP1165965A1 (de) 2002-01-02
EP1165965B1 true EP1165965B1 (de) 2003-07-30

Family

ID=7902649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00920569A Expired - Lifetime EP1165965B1 (de) 1999-03-26 2000-03-24 Seitenkanalverdichter

Country Status (11)

Country Link
US (1) US6779968B1 (da)
EP (1) EP1165965B1 (da)
JP (1) JP2002540350A (da)
KR (1) KR100637090B1 (da)
CN (1) CN1119531C (da)
AT (1) ATE246316T1 (da)
AU (1) AU763252B2 (da)
DE (2) DE19913950A1 (da)
DK (1) DK1165965T3 (da)
ES (1) ES2203451T3 (da)
WO (1) WO2000058629A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3869098A1 (en) 2018-07-19 2021-08-25 Brunswick Corporation Forced-draft pre-mix burner device
DE102024106999A1 (de) * 2024-03-12 2025-09-18 Truma Gerätetechnik GmbH & Co. KG Seitenkanalverdichter mit optimierter Einlassöffnungsgeometrie

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20020370A1 (it) * 2002-05-06 2003-11-06 Varian Spa Stadio di pompaggio per pompa da vuoto.
DE202004019506U1 (de) * 2004-12-17 2006-04-20 Nash_Elmo Industries Gmbh Seitenkanalverdichter
US7722311B2 (en) * 2006-01-11 2010-05-25 Borgwarner Inc. Pressure and current reducing impeller
US7425113B2 (en) * 2006-01-11 2008-09-16 Borgwarner Inc. Pressure and current reducing impeller
JP5172115B2 (ja) * 2006-07-27 2013-03-27 シナノケンシ株式会社 渦流式圧縮機及び渦流式圧縮機の製造方法
DE102007053016A1 (de) 2007-11-05 2009-05-07 Gardner Denver Deutschland Gmbh Seitenkanalverdichter
DE102012023347B3 (de) 2012-11-29 2014-01-30 Tni Medical Ag Kleiner, geräuscharmer Seitenkanalverdichter, insbesondere für Geräte in der Beatmungstherapie
ITVI20130304A1 (it) * 2013-12-19 2015-06-20 Turato Srl Off Impianto a vuoto stabilizzato per essiccatoio di pelli industriali a pianali di evaporazione multipli
JP6639880B2 (ja) * 2015-11-24 2020-02-05 愛三工業株式会社 渦流ポンプ
DE102018219995A1 (de) * 2018-11-22 2020-05-28 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium
EP3594498B1 (de) 2019-11-06 2022-01-05 Pfeiffer Vacuum Gmbh System mit einer gasrezirkulationseinrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE876285C (de) * 1940-09-29 1953-05-11 Siemens Ag Ringverdichter
GB606127A (en) * 1944-10-30 1948-08-06 Bendix Aviat Corp Blowers
DE2131952C3 (de) * 1971-06-26 1974-05-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Ringkanalgebläse
JPS4977210A (da) * 1972-11-27 1974-07-25
JPH0343696A (ja) * 1989-07-06 1991-02-25 Daikin Ind Ltd 渦流形真空ポンプ
JP2844966B2 (ja) * 1991-06-18 1999-01-13 株式会社日立製作所 渦流ポンプ
DE4242474A1 (de) * 1992-12-16 1994-06-23 Sel Alcatel Ag Vorrichtung zum Fördern eines gasförmigen Mediums
US5375971A (en) * 1993-10-04 1994-12-27 Ford Motor Company Automotive fuel pump flow channel design
US5527149A (en) * 1994-06-03 1996-06-18 Coltec Industries Inc. Extended range regenerative pump with modified impeller and/or housing
DE59609719D1 (de) * 1995-09-15 2002-10-31 Siemens Ag Seitenkanalverdichter
US5819524A (en) * 1996-10-16 1998-10-13 Capstone Turbine Corporation Gaseous fuel compression and control system and method
DE19708952A1 (de) * 1997-03-05 1998-09-17 Busch Gmbh K Seitenkanalverdichter mit sich verjüngendem Kanalquerschnitt
DE19736678A1 (de) * 1997-08-22 1999-02-25 Rietschle Werner Gmbh & Co Kg Mehrstufige Seitenkanalpumpe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3869098A1 (en) 2018-07-19 2021-08-25 Brunswick Corporation Forced-draft pre-mix burner device
EP3869098B1 (en) 2018-07-19 2024-01-10 Brunswick Corporation Forced-draft pre-mix burner device
DE102024106999A1 (de) * 2024-03-12 2025-09-18 Truma Gerätetechnik GmbH & Co. KG Seitenkanalverdichter mit optimierter Einlassöffnungsgeometrie
WO2025190763A1 (de) 2024-03-12 2025-09-18 Truma Gerätetechnik GmbH & Co. KG Seitenkanalverdichter mit optimierter einlassöffnungsgeometrie

Also Published As

Publication number Publication date
US6779968B1 (en) 2004-08-24
KR100637090B1 (ko) 2006-10-23
AU4109800A (en) 2000-10-16
KR20020002406A (ko) 2002-01-09
AU763252B2 (en) 2003-07-17
DE19913950A1 (de) 2000-09-28
DK1165965T3 (da) 2003-11-17
EP1165965A1 (de) 2002-01-02
JP2002540350A (ja) 2002-11-26
ATE246316T1 (de) 2003-08-15
CN1119531C (zh) 2003-08-27
ES2203451T3 (es) 2004-04-16
DE50003108D1 (de) 2003-09-04
WO2000058629A1 (de) 2000-10-05
CN1345400A (zh) 2002-04-17

Similar Documents

Publication Publication Date Title
EP1165965B1 (de) Seitenkanalverdichter
DE68921561T2 (de) Schraubenverdichter.
EP1462658B1 (de) Radialgebläse
EP0081456B1 (de) Freistrompumpe
DE69724050T2 (de) Elektrisch angetriebener hermetisch gekapselter verdichter
DE3728154C2 (de) Mehrstufige Molekularpumpe
DE1817430A1 (de) Regenerativkompressor
EP1165963B1 (de) Kältemittelkompressor
DE102009054771A1 (de) Turboverdichter
WO2005012732A1 (de) Laufrad für pumpen
EP1396640B1 (de) Schraubenverdichter
EP1567770B1 (de) Schraubenverdichter
EP0332078B1 (de) Ringkanalgebläse
DE60300515T2 (de) Pumpstufe für eine Vakuumpumpe
DE9210497U1 (de) Ejektorpumpe
EP3088743B1 (de) Seitenkanal-vakuumpumpstufe mit einem unterbrecher, der auf der saugseite abgeschrägt ist
DE29920373U1 (de) Gehäuse für einen Lüfter, insbesondere einen Radiallüfter
DE2414610B2 (de) Querstromlüfter
DE3031848A1 (de) Kreiselmaschine, insbesondere radialverdichter
DE3916008C1 (da)
DE10224604B4 (de) Evakuierungseinrichtung
DE10258145A1 (de) Schraubenverdichter
DE102022113977A1 (de) Pneumatisches Ventil und Verdichter
EP1022469B1 (de) Radialgebläse
EP1022470B1 (de) Radialgebläse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20011010

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030730

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030730

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030730

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50003108

Country of ref document: DE

Date of ref document: 20030904

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031030

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031029

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031230

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20030730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040324

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2203451

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040504

BERE Be: lapsed

Owner name: *WERNER RIETSCHLE G.M.B.H. + CO. K.G.

Effective date: 20040331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20070305

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070326

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070327

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070328

Year of fee payment: 8

Ref country code: SE

Payment date: 20070328

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20070329

Year of fee payment: 8

Ref country code: FI

Payment date: 20070329

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070522

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070524

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070319

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080324

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080324

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080325

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080331

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081001

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080331

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080331

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080324