EP1503034B1 - Machine a rotor dente - Google Patents

Machine a rotor dente Download PDF

Info

Publication number
EP1503034B1
EP1503034B1 EP03725936A EP03725936A EP1503034B1 EP 1503034 B1 EP1503034 B1 EP 1503034B1 EP 03725936 A EP03725936 A EP 03725936A EP 03725936 A EP03725936 A EP 03725936A EP 1503034 B1 EP1503034 B1 EP 1503034B1
Authority
EP
European Patent Office
Prior art keywords
shell
rotor
stator
way
machine
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
EP03725936A
Other languages
German (de)
English (en)
Other versions
EP1503034A1 (fr
EP1503034A4 (fr
Inventor
Vladimir Vsevolodovich Davydov
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1503034A1 publication Critical patent/EP1503034A1/fr
Publication of EP1503034A4 publication Critical patent/EP1503034A4/fr
Application granted granted Critical
Publication of EP1503034B1 publication Critical patent/EP1503034B1/fr
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
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • 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
    • F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor
    • F04C2250/201—Geometry of the rotor conical shape

Definitions

  • the invention relates to hydro and pneumatic engineering and can be used as a pump, a compressor or a motor.
  • Patent SU, A1, 909305 protects a gerotor machine, comprising a ring stator with contactors, a rotor with displacers, coaxiallymounted with respect to the stator with the formation of working chambers between their matingsurfaces; end surfaces of the rotor and the stator are provided with ring grooves and collars with matingsurfaces, and every working chamber is performed in the form of two profiled grooves, located at one of the matingsurfaces on both sides of collar in one angular sector.
  • a disadvantage of said device is its low efficiency as a result of small capacity of working chambers.
  • Patent SU, A1, 1237092 protects a gerotor machine, comprising a frame-mounted stator, performed with constant or alternating thread pitch and epicycloidal in cross-section, a spindle located in the stator with outer screw vaulted cross-section surface, having a thread pitch different from the inner screw surface of the stator, stator's inner screw surface and spindle's outer screw surface are mounted with the possibility of locking with or without clearance; the device is provided with a gear unit mounted between the stator and the spindle, spindle's vaulted cross-section is performed with the thread pitch one-unit bigger than stator's thread pitch, spinder's thread pitch is divisible by stator's thread pitch, and the gear unit is performed with transmission ratio equal to the ratio of stator's and spindle's pitches.
  • a disadvantage of said device is a huge constructive complexity and, as a consequence, low reliability.
  • the rotor is arranged in the shell in such a way that working chambers are formed between the mating surfaces thereof.
  • the shell is disposed inside the stator in such a way that it is rotatable and that working chambers are formed between the mating surfaces thereof.
  • the passage area between the rotor and shell and between the shell and stator is embodied in such a way that it is variable along the longitudinal axis of the machine.
  • US, A, 2085115 discloses such a machine. This engineering solution is taken as prototype of the present invention.
  • the machine In order to remove clearances between the machine elements and, respectively, to restore the compression, the machine shall be disassembled and worn-out elements or their elastic covers shall be changed, which is a rather labour-intensive process.
  • the aim of the said invention is to develop a gerotor machine which makes it possible to automatically compensate the clearances formed between the rotor and shell, and between the shell and stator.
  • the inventive gerotor type machine for displacing liquids and gases along the longitudinal axis thereof comprising a stator, a screw rotor and a shell, the rotor being arranged in the shell in such a way that working chambers are formed between the mating surfaces thereof, and the shell being disposed inside the stator in such a way that it is rotatable and that working chambers are formed between the mating surfaces thereof, the passage area between the rotor and shell and between the shell and stator being embodied in such a way that it is variable along the longitudinal axis of the machine, wherein said rotor and shell are embodied in such a way that they are displaceable by an axial force for tightening the rotor, shell and stator to each other, thereby automatically taking up clearances when they are formed.
  • a direct technical result which may be obtained when realizing substantial features of the claimed invention is the fact that the clearances formed on account of rotor, shell and stator deterioration are automatically removed, as under the effect of axial force the said machine elements are displaced and tightly compressed one to another. No stops for the perception of axial force exerting effect upon the rotor and the shell are required, as the rotor rests upon the shell, and the shell - upon the stator. As a result of the automatic removal of clearances, the reduction of compression of the gerotor machine is prevented and the necessity of frequent disassembly and assembly of the machine when its components deteriorate is eliminated.
  • the gerotor machine comprises screw rotor 1 and shell 2.
  • Rotor 1 is located in shell 2 in such a way that working chambers 3 are formed between their mating surfaces, the passage area between rotor 1 and shell 2 is variable along the longitudinal axis of the machine; roller 4 is connected with rotor 1; shell 2 is disposed in such a way that it can be rotated inside stator 5.
  • the gerotor machine comprises suction pipe 7 and discharge pipe 8. Lower end of the rotor is provided with axis 9, located in bearing 10. Roller 4 is located in bearing 11. Roller 4 is fixed into blind hole 12; torque is transferred by means of dowel 13. Axis 9 can slide relative to bearing 10 within clearance 14.
  • the machine is used as a pump, but can be used also to transfer gas.
  • the machine can also be operated in hydro- or pneumomotor mode.
  • the device works as follows.
  • the liquid enters into suction pipe 7 and then, under the rotation of rotor 1 and shell 2, enters into discharge pipe 8 through working chambers 3 and 6.
  • the rubbing elements rotor, shell, stator
  • the rotor and the shell are displaced along the machine longitudinal axis in the direction of the suction pipe as a result of axial force effect, the clearance between them is taken up and they are tightened to one another thereof, which prevents from the decrease of compression of the gerotor machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (1)

  1. Machine du type à rotor denté pour déplacer des liquides et des gaz le long de son axe longitudinal, comprenant un stator (5), un rotor (1) en forme de vis et une enveloppe (2), le rotor (1) étant agencé dans l'enveloppe (2) de telle sorte que des chambres de travail (3) sont formées entre ses surface conjuguées, et l'enveloppe (2) étant disposée à l'intérieur du stator (5) de telle sorte qu'elle peut tourner et de telle sorte que des chambres de travail (3) sont formées entre ses surfaces conjuguées, la zone de passage entre le rotor (1) et l'enveloppe (2) et entre l'enveloppe (2) et le stator (5) étant réalisée de telle sorte qu'elle est variable le long de l'axe longitudinal de la machine,
    caractérisée en ce que
    ledit rotor (1) et ladite enveloppe (2) sont réalisés de telle sorte qu'ils sont déplaçables par une force axiale pour serrer les uns contre les autres le rotor (1), l'enveloppe (2) et le stator (5).
EP03725936A 2002-04-24 2003-04-22 Machine a rotor dente Expired - Lifetime EP1503034B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU2002112374 2002-04-24
RU2002112374/06A RU2214513C1 (ru) 2002-04-24 2002-04-24 Героторная машина
PCT/RU2003/000196 WO2003091543A1 (fr) 2002-04-24 2003-04-22 Machine a rotor dente

Publications (3)

Publication Number Publication Date
EP1503034A1 EP1503034A1 (fr) 2005-02-02
EP1503034A4 EP1503034A4 (fr) 2008-03-19
EP1503034B1 true EP1503034B1 (fr) 2011-08-31

Family

ID=29268135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725936A Expired - Lifetime EP1503034B1 (fr) 2002-04-24 2003-04-22 Machine a rotor dente

Country Status (5)

Country Link
EP (1) EP1503034B1 (fr)
AT (1) ATE522700T1 (fr)
AU (1) AU2003231438A1 (fr)
RU (1) RU2214513C1 (fr)
WO (1) WO2003091543A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005838A1 (fr) * 2003-07-14 2005-01-20 Elthom Enterprises Limited Compresseur rotatif a vis a etages multiples
WO2005078240A1 (fr) * 2004-01-14 2005-08-25 Elthom Enterprises Limited Procede permettant de transformer l'energie dans une machine rotative a vis du type volumetrique
ATE415560T1 (de) * 2006-01-26 2008-12-15 Grundfos Management As Exzenterschneckenpumpe
EP2063125B1 (fr) * 2007-11-02 2009-10-14 Grundfos Management A/S Pompe Moineau
DE202009002823U1 (de) * 2009-03-02 2009-07-30 Daunheimer, Ralf Exzenterschneckenpumpe
EP2532833B1 (fr) * 2011-06-10 2015-07-29 ViscoTec Pumpen-u. Dosiertechnik GmbH Elément de transport pour une pompe à vis sans fin excentrique et pompe à vis sans fin excentrique
CN103758756B (zh) * 2014-01-22 2016-01-06 中国石油天然气股份有限公司 平衡式金属螺杆泵
PL3767105T3 (pl) * 2019-07-16 2022-05-02 Arnold Jäger Holding GmbH Stojan do pompy ślimakowej mimośrodowej

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085115A (en) * 1934-05-02 1937-06-29 Moineau Rene Joseph Louis Gear mechanism
SE85331C1 (fr) * 1935-03-11 1936-01-21
SE140005C1 (fr) * 1951-08-16 1953-04-21
GB1215569A (en) * 1969-08-29 1970-12-09 Paul Gerhard Langer Rotary positive-displacement pumps
DE2240423A1 (de) * 1972-08-17 1974-03-07 Hermetic Pumpen Gmbh Foerdereinrichtung, insbesondere foerderpumpe
HU175810B (hu) 1977-12-28 1980-10-28 Orszagos Koolaj Gazipari Protochnoe mnogocelevoe ustrojstvo s osevym protokom
SU909305A1 (ru) 1978-06-02 1982-02-28 За витель Объемна роторна гидромашина
SU1437575A1 (ru) * 1987-03-17 1988-11-15 И.М.Чесноков и А.И.Чеснаков Двухвинтовой растворонасос
RU2157895C2 (ru) * 1998-06-18 2000-10-20 Богданов Эдуард Васильевич Роторно-спиральный двигатель

Also Published As

Publication number Publication date
AU2003231438A1 (en) 2003-11-10
RU2214513C1 (ru) 2003-10-20
EP1503034A1 (fr) 2005-02-02
ATE522700T1 (de) 2011-09-15
WO2003091543A1 (fr) 2003-11-06
EP1503034A4 (fr) 2008-03-19

Similar Documents

Publication Publication Date Title
US12060883B2 (en) Pump integrated with two independently driven prime movers
US10995750B2 (en) External gear pump integrated with two independently driven prime movers
EP1503034B1 (fr) Machine a rotor dente
US20040184943A1 (en) Fluid machinery
EP0627557B1 (fr) Machine fluidique à vis
US5695327A (en) Sealing, mounting and drive of the rotors of a dry-running screw compressor
EP0985826B1 (fr) Pompe Moineau
US20040166010A1 (en) Offset bearing for extended fuel pump life
JP2000110760A (ja) 油冷式スクリュー圧縮機
EP3408540B1 (fr) Joint spirale-structure fixé sans boulon, à verrouillage rotatif
RU2241832C1 (ru) Героторная машина
US6524087B1 (en) Hydrostatic planetary rotation machine having an orbiting rotary valve

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: 20041116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

A4 Supplementary search report drawn up and despatched

Effective date: 20080220

17Q First examination report despatched

Effective date: 20090504

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 60338262

Country of ref document: DE

Effective date: 20111103

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110831

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: FI

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: 20110831

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: 20110831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 522700

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110831

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

Ref country code: SI

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: 20110831

Ref country code: AT

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: 20110831

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: 20110831

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: 20111201

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: SK

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: 20110831

Ref country code: CZ

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: 20110831

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: 20120102

Ref country code: EE

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: 20110831

Ref country code: IT

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: 20110831

Ref country code: RO

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: 20110831

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

Ref country code: DK

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: 20110831

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: 20120601

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 60338262

Country of ref document: DE

Effective date: 20120601

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

Ref country code: MC

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

Effective date: 20120430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121228

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

Ref country code: LI

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

Effective date: 20120430

Ref country code: IE

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

Effective date: 20120422

Ref country code: CH

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

Effective date: 20120430

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: 20120430

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111211

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

Ref country code: BG

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: 20111130

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

Ref country code: GB

Payment date: 20130422

Year of fee payment: 11

Ref country code: DE

Payment date: 20130621

Year of fee payment: 11

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

Ref country code: TR

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: 20110831

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: 20120422

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

Ref country code: HU

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: 20030422

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60338262

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140422

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

Ref country code: DE

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

Effective date: 20141101

Ref country code: GB

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

Effective date: 20140422

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60338262

Country of ref document: DE

Effective date: 20141101