EP0744546B1 - Pumpvorrichtung für cryogene Fluide - Google Patents
Pumpvorrichtung für cryogene Fluide Download PDFInfo
- Publication number
- EP0744546B1 EP0744546B1 EP19960810311 EP96810311A EP0744546B1 EP 0744546 B1 EP0744546 B1 EP 0744546B1 EP 19960810311 EP19960810311 EP 19960810311 EP 96810311 A EP96810311 A EP 96810311A EP 0744546 B1 EP0744546 B1 EP 0744546B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- precompressor
- piston rod
- high pressure
- pump device
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
- F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
Definitions
- the present invention relates to a pump device for cryogenic fluids according to the preamble of claim 1.
- a pump operating on the same principle is from CH-A-663'065 is known, but is simpler and cheaper can be manufactured.
- This pumping device that is shown in Figure 1, also has a high pressure and a pre-compressor part, but through a partition are separated.
- the pre-compressor part is in a heat insulated Fluid or intermediate container 5 housed.
- the high-pressure part and the pre-compressor part comprise two of each other separate piston pumps 1,2, which are arranged in tandem and the one common, the partition 3 sliding and sealed (32) penetrating piston rod 8.
- the pre-compressor part has a cylinder 10 which is open on the suction side.
- the Pre-compressor piston 11 has passage openings 17 which during the loading stroke or pre-compression through a valve plate 12 are closed while they are open in the pressure stroke are.
- the partition 3 is penetrated by suction openings 33, which Connect the pre-compression chamber 16 to the high pressure chamber 26. in the The suction openings 33 are lifted by one in the high pressure part arranged valve plate 34 closed and in the loading stroke open.
- this pump has the disadvantage that it can handle pressures above 400 bar is no longer suitable.
- the seals 32 that the transition of the piston rod 8 from the low pressure area of the Sealing the pre-compressor chamber in the high pressure area are at exposed to higher pressures and excessive wear lead to leaks so quickly.
- the Pump efficiency reduced.
- they have to Seals are replaced more often, resulting in shorter ones Operating times of the pump.
- the pump device according to the invention essentially has same construction as the pump device known from CH-A-663'065 and works on the same principle.
- inventive Pump device are high pressure and low pressure part however more separated from each other and only by Intake openings or intake ducts connected to one another.
- By the two separate piston rods eliminate the seal in the Transition from low pressure to high pressure area, so that the properties of a when working at higher pressures such seal no longer need to be considered.
- There the piston rods are driven synchronously, is a flawless Functioning of the pumping device nevertheless guaranteed.
- the movements of the piston rods are mechanically synchronized.
- the piston rod of the precompressor part is arranged entirely within a fluid container, it being connected to the high-pressure piston rod by means of a connecting rod, which likewise runs in the fluid container.
- the connection is also completely in the low pressure range, so that the seals do not have to be so demanding.
- the low-pressure piston rod protrudes from the fluid container and the mechanical connection takes place outside the fluid container by means of drive rods offset parallel to the piston axes.
- the low-pressure piston rod is in turn provided with a low-pressure seal in the fluid container / environment transition. This structure has special advantages: the low pressure seal is easily accessible. Therefore, it can be replaced easily. In addition, it can be adjusted by compressing it to different degrees by means of mechanical force transmission, for example by means of an adjustable sleeve.
- FIG. 1 A pumping device for cryogenic fluids is shown in FIG the prior art is shown in simplified form, based on which The principle of operation of the pump can be seen in CH-A-663'065 is described in detail.
- FIG. 2 shows a preferred embodiment of the pump device improved according to the invention.
- the pump device likewise comprises a pre-compressor part and a high-pressure part, the high-pressure part comprising a high-pressure piston pump 2 and the pre-compressor part a low-pressure piston pump 1, also referred to below as a pre-compressor pump.
- the piston pumps are at least partially surrounded by a fluid container 5, which in turn is thermally insulated from the environment by means of an insulation jacket 6.
- a double wall surrounding the fluid container 5, in which vacuum prevails serves as the insulation jacket 6.
- the fluid container 5 has a feed opening 50 through which the fluid gets into the container. It is also lockable Relaxation opening 51 available from the container leads to the outside and which leads to the possible derivation of arising Serves gas bubbles.
- the low-pressure piston pump 1 has a fixed cylinder 10 which is located entirely within the fluid container 5.
- the cylinder 10 has essentially the shape of a tube open on the suction side, which is partially penetrated by a pre-compressor piston rod 13 and in which a pre-compressor piston 11 connected to the pre-compressor piston rod 13 is held displaceably.
- the pre-compression piston 11 has at least one passage opening 17 which connects the fluid container 5 to the pre-compression chamber 16. This opening is closed by means of a valve plate 12 during the pre-compression or loading stroke.
- this valve plate 12 is arranged inside the precompression chamber on the side of the piston facing away from the passage opening. In Figure 2, the valve plate 12 is shown in the open position.
- the pre-compressor piston rod 13 projects with its piston distant Sealed out of the fluid container 5 (14).
- the end near the piston is inside the pre-compression chamber 16.
- the seals 14 are in an elongated attachment 52 on the fluid container 5 so that they are easily accessible.
- the attachment 52 comprises an adjustable sleeve 52 ', by means of which the seals 14 can be adjusted by they are pressed together to different degrees by the cuff 52 ' will.
- the high-pressure piston pump 2 likewise has one Cylinder 20, which is penetrated by a high-pressure piston rod 23 and in which one with the high-pressure piston rod 23 connected high-pressure piston 24 is held displaceably.
- the High-pressure piston 21 is provided with sealing rings 21 '. This Sealing rings seal the high pressure area from the remaining cylinder 20 from.
- a return spring 25 and an additional low pressure seal 24 arranged in these embodiments.
- At the end of the sealing rings remote from the piston 21 'can have at least one bore 28 in the cylinder 20 in the event of leakage, the fluid into the fluid container 5 leads back.
- a pressure line 4 leads away from the high pressure chamber 26, wherein the outlet opening of the high pressure chamber with a check valve 41 is provided.
- the cylinder 20 of the high pressure pump 2 is on its piston side End closed except for at least one suction opening 27.
- the suction opening 27 is in the pressure stroke through a valve body 22 closed and open in the loading stroke.
- the valve body 22 is arranged outside the cylinder in this example and has at least one intake duct 30 and one Relaxation channel 31 on.
- the at least one intake duct 30 connects the pre-compression chamber 16 to the high pressure chamber 26.
- the ascending accumulate in relaxation channel 31 Gas bubbles and are directed into the fluid container so that almost exclusively liquid fluid can be pumped.
- the two piston rods 13, 23 of the pre-compressor pump 1 and High-pressure pump 2 are driven synchronously in tandem.
- the Synchronization of the drive can be done in different ways done mechanically or electronically.
- mechanical synchronization means are used.
- These drive rods 70 are by means of at least approximately at right angles to it arranged crossbars 71 with the ends remote from the piston both the pre-compression piston rod 13 as well as the high pressure piston rod 23 connected.
- This mechanical synchronization means can also be mounted on existing pumping devices easily adjustable.
- the crossbars can also be one form a different angle with the drive rods.
- FIG. 3 shows a second preferred exemplary embodiment of the Pumping device according to the invention shown from essentially has the same structure as that in Figure 2.
- the Pre-compression piston rod 13 is axially offset here High-pressure piston rod 23 arranged. It is complete inside the fluid container 5 and does not protrude this out.
- the pre-compression piston rod 13 is opposite the fluid container in turn sealed (14 '). Enforced the piston rod 13 now the low pressure cylinder 10 to two Pages.
- the valve plate 12 is located on the other side of the piston 11 than in the example in FIG Figure 2 and is firmly connected to the piston rod, the piston However, 11 is movable.
- the shown in Figures 1 and 2 Solutions for the pre-compressor pump are interchangeable.
- the distal end of the precompression piston rod 13 is again with the high pressure piston rod 23 by means of mechanical Synchronization means connected, however, completely run inside the fluid container.
- These funds include here a connecting rod 72, which is at least approximately in the perpendicular plane to the piston axes, on the one hand with the pre-compressor piston rod 13 is connected and on the other hand the high-pressure piston rod 23 in the area behind the Sealing rings 21 ', that is, in the low pressure area, penetrates.
- the cylinder 20 of the high-pressure piston pump 2 has this Area along its axis a recess 29 that the Running the connecting rod 72 with the piston rods 13,23 enables. It is possible to use several pre-compressor pumps to connect the same high pressure pump.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
In einer anderen Variante ragt die Niederdruckkolbenstange aus dem Fluidbehälter heraus und die mechanische Verbindung erfolgt ausserhalb des Fluidbehälters mittels parallel zu den Kolbenachsen versetzten Antriebsstangen. Die Niederdruckkolbenstange ist im Uebergang Fluidbehälter/Umgebung wiederum mit einer Niederdruckdichtung versehen. Dieser Aufbau weist spezielle Vorteile auf: Die Niederdruckdichtung ist leicht zugänglich. Deshalb kann sie auf einfache Weise ausgewechselt werden. Zudem ist sie einstellbar, indem sie mittels mechanischer Kraftübertragung, beispielsweise durch eine verstellbare Manschette, unterschiedlich stark zusammengepresst wird.
- Figur 1
- eine Pumpvorrichtung gemäss dem Stand der Technik;
- Figur 2
- eine Ausführungsform einer erfindungsgemässen Pumpvorrichtung im Schnitt dargestellt und
- Figur 3
- eine weitere Ausführungsform der erfindungsgemässen Pumpvorrichtung im Schnitt dargestellt.
Die Kolbenpumpen sind mindestens teilweise von einem Fluidbehälter 5 umgeben, der selber wiederum mittels eines Isolationsmantels 6 von der Umgebung wärmeisoliert ist. Als Isolationsmantel 6 dient in diesem Ausführungsbeispiel eine den Fluidbehälter 5 umgebende Doppelwandung, in der Vakuum herrscht.
Der Vorverdichterkolben 11 weist mindestens eine Durchlassöffnung 17 auf, die den Fluidbehälter 5 mit der Vorverdichterkammer 16 verbindet. Diese Oeffnung ist während des Vorverdichtens oder Ladehubes mittels einer Ventilplatte 12 geschlossen. Diese Ventilplatte 12 ist in diesem Beispiel im Innern der Vorverdichterkammer auf der der Durchlassöffnung abgewandten Seite des Kolbens angeordnet. In Figur 2 ist die Ventilplatte 12 in offener Lage dargestellt.
Claims (10)
- Pumpvorrichtung für cryogene Fluide mit einem Hochdruckteil und einem Vorverdichterteil, zwischen denen eine Trennwand (3) angeordnet ist, wobei der Hochdruckteil eine Hochdruckkolbenpumpe (2) und der Vorverdichterteil mindestens eine Vorverdichterkolbenpumpe (1) umfassen, die durch die Trennwand (3) voneinander getrennt, im Tandem angeordnet und synchron betrieben sind, dadurch gekennzeichnet, dass jede Kolbenpumpe (1,2) eine Kolbenstange (13,23) aufweist, die mindestens im Bereich der Trennwand (3) vollständig von der anderen Kolbenstange (13,23) getrennt ist.
- Pumpvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Antrieb der Kolbenstangen (13,23) elektronisch synchronisiert ist.
- Pumpvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Antrieb der Kolbenstangen (13,23) mit mechanischen Mitteln (70,71,72) synchronisiert ist.
- Pumpvorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass die Kolbenstangen (13,23) auf einer gemeinsamen Achse liegen.
- Pumpvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die mechanischen Mittel mindestens eine Antriebsstange (70) umfassen, die achsial zur Hochdruckkolbenstange (23) versetzt angeordnet ist und mit der Hochdruck- und der Vorverdichterkolbenstange (13,23) verbunden ist.
- Pumpvorrichtung nach Anspruch 3, dadurch gekennzeichnet, die mindestens eine Vorverdichterkolbenstange (13) achsial zur Hochdruckkolbenstange (13) versetzt angeordnet ist und dass die mechanischen Mittel mindestens eine annähernd senkrecht zu den Kolbenachsen (13,23) verlaufende Verbindungstange (72) umfassen, die die Hochdruck- mit mindestens einer Vorverdichterkolbenstange (13,23) verbindet.
- Pumpvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Pumpvorrichtung einen Fluidbehälter (5) umfasst, der durch den Vorverdichterkolben (11) der mindestens einen Vorverdichterkolbenpumpe (1) von der mindestens einen Vorverdichterkammer (16) getrennt ist, wobei der Vorverdichterkolben (11) mindestens eine Durchlassöffnung (17) aufweist, die durch eine Ventilplatte (12) verschliessbar ist.
- Pumpvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die mindestens eine Vorverdichterkolbenstange (13) mit ihrem kolbenfernen Ende aus dem Fluidbehälter (5) abgedichtet herausragt.
- Pumpvorrichtung nach Anspruch 5 und 8, dadurch gekennzeichnet, dass die mindestens eine Antriebsstange (70) ausserhalb des Fluidbehälters (5) verläuft und mittels Querstangen (71) mit der Vorverdichter- und Hochdruckkolbenstange (13,23) verbunden ist.
- Pumpvorrichtung nach Anspruch 6 und 7, dadurch gekennzeichnet, dass die Vorverdichterkammer (16) und die Hochdruckkammer (26) vollständig innerhalb des Fluidbehälters (5) angeordnet sind, wobei die Verbindungsstange (72) im Niederdruckteil der Hochdruckpumpe (2) mit der Hochdruck-kolbenstange (23) verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1564/95 | 1995-05-26 | ||
CH156495 | 1995-05-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0744546A1 EP0744546A1 (de) | 1996-11-27 |
EP0744546B1 true EP0744546B1 (de) | 1998-12-23 |
Family
ID=4213380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960810311 Expired - Lifetime EP0744546B1 (de) | 1995-05-26 | 1996-05-15 | Pumpvorrichtung für cryogene Fluide |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0744546B1 (de) |
DE (1) | DE59601034D1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH695908A5 (de) * | 2002-07-12 | 2006-10-13 | Cryomec Ag | Hochdruckpumpe für cryogene flüssige Medien. |
DE102010053091A1 (de) * | 2010-12-01 | 2012-06-06 | Linde Aktiengesellschaft | Mehrstufiger Kolbenverdichter |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742150C (de) * | 1941-12-04 | 1943-11-23 | Draegerwerk Heinr U Bernh Drae | Kompressor oder Umfuellpumpe fuer Sauerstoff |
US2630757A (en) * | 1948-03-26 | 1953-03-10 | Independent Engineering Compan | Combined type series pump for flashable liquids |
US4447195A (en) * | 1982-02-22 | 1984-05-08 | Air Products And Chemicals, Inc. | High pressure helium pump for liquid or supercritical gas |
CH663065A5 (de) * | 1984-07-20 | 1987-11-13 | Cryomec Ag | Pumpvorrichtung fuer cryogene fluide. |
DE4142053C1 (de) * | 1991-12-19 | 1993-06-17 | Linde Ag, 6200 Wiesbaden, De |
-
1996
- 1996-05-15 DE DE59601034T patent/DE59601034D1/de not_active Expired - Lifetime
- 1996-05-15 EP EP19960810311 patent/EP0744546B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59601034D1 (de) | 1999-02-04 |
EP0744546A1 (de) | 1996-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2658793A1 (de) | Hubkolben- und -zylindermaschine | |
DE3607517A1 (de) | Kompressor mit einem mechanismus zur verringerung von pulsierenden druckschwankungen | |
DE818886C (de) | Brennstoffeinspritzpumpe fuer Brennkraftmaschinen | |
DE1628152A1 (de) | Sichtung fuer Hochdruck-Kolbenkompressoren oder -pumpen | |
DE1403973A1 (de) | Dosierungspumpe | |
DE6949804U (de) | Freiflugkolben-tandemmaschine. | |
WO2014096162A1 (de) | Steckpumpe | |
EP1395753B1 (de) | Hochdruckpumpe für ein kraftstoffsystem einer brennkraftmaschine | |
EP0744546B1 (de) | Pumpvorrichtung für cryogene Fluide | |
DE3607518C2 (de) | ||
DE4038613C2 (de) | Mehrzylindrige Hochdruckplungerpumpe | |
DE3902658C2 (de) | Kolbenmkompressor | |
EP1160451B1 (de) | Kolbenpumpe | |
DE8514497U1 (de) | Hochdruckkolbenpumpe | |
DE2453409C2 (de) | Elektromagnetisch betätigte Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine | |
DE2825144C2 (de) | Mehrzylinderdickstoffpumpe | |
DE102010038225B4 (de) | Schlauchmembran-Prozeßpumpe | |
DE3342381A1 (de) | Kolbenpumpe fuer fluessigen wasserstoff | |
DE687436C (de) | Drehventilabdichtung | |
DE1475902A1 (de) | Steuerungsgeraet fuer Druckmittelstroeme und damit ausgeruestete Vorrichtungen | |
DE4200576A1 (de) | Hochdruck-anordnungen | |
DE805837C (de) | Umsteuerventil fuer Kolbenmaschinen | |
DE924114C (de) | Mehrstufiger, vorzugsweise zweistufiger Freiflugkolben-Motorverdichter mit gegenlaeufigen Flugmassen | |
DE673286C (de) | Zweistufiger Kolbenverdichter | |
DE102020001291A1 (de) | Hydraulische Versorgungsanlage für einen Verbraucher |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19970520 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19980225 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
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 |
Kind code of ref document: B1 Designated state(s): BE CH DE FR GB IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 19981223 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 PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19981223 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981223 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: PATENTANWALTSBUERO FELDMANN AG Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59601034 Country of ref document: DE Date of ref document: 19990204 |
|
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: 19990323 |
|
ET | Fr: translation filed | ||
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: 19990531 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19981223 |
|
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 |
|
BERE | Be: lapsed |
Owner name: CRYOMEC A.G. Effective date: 19990531 |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: CRYOMEC AG Free format text: CRYOMEC AG#BINNINGERSTRASSE 85#CH-4123 ALLSCHWIL (CH) -TRANSFER TO- CRYOMEC AG#BINNINGERSTRASSE 85#CH-4123 ALLSCHWIL (CH) |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59601034 Country of ref document: DE Representative=s name: KEILITZ & SOELLNER, PARTNERSCHAFT, DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150512 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150508 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20150826 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59601034 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |