DK153719B - METHOD AND STAMP PUMP FOR OPERATION OF A HYDRAULIC PLANT - Google Patents
METHOD AND STAMP PUMP FOR OPERATION OF A HYDRAULIC PLANT Download PDFInfo
- Publication number
- DK153719B DK153719B DK517884A DK517884A DK153719B DK 153719 B DK153719 B DK 153719B DK 517884 A DK517884 A DK 517884A DK 517884 A DK517884 A DK 517884A DK 153719 B DK153719 B DK 153719B
- Authority
- DK
- Denmark
- Prior art keywords
- pump
- piston
- liquid
- pressure
- suction
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 210000000056 organ Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 201000005569 Gout Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
- F04B7/0266—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
-
- 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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/11—Kind or type liquid, i.e. incompressible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
DK 153719BDK 153719B
5 Opfindelsen angår en fremgangsmåde til drift af et hydraulisk anlæg omfattende en stempelpumpe med suge-og trykventil, hvilken pumpe trykker væske ud i et system af ledninger, hvor ventiler sørger for, at væsken ledes til de ønskede organer såsom aktive-10 ringsindretninger eller lignende, samt en stempelpumpe til brug hertil.The invention relates to a method for operating a hydraulic system comprising a plunger pump with suction and pressure valve, which pumps fluid into a system of conduits, in which valves ensure that the liquid is directed to the desired means such as actuators or the like. , as well as a plunger pump for use therewith.
Fra tysk offentliggørelsesskrift nr. 2.646.583 kendes et anlæg af denne art omfattende en pumpe, som er 15 drevet af en ekscentrik som stemplet ligger frit an på. Ekscentrikken fungerer som drivenhed for både pumpen og stemplet, hvorved der opstår en direkte konstruktiv sammenhæng mellem fødepumpen og stempelpumpen .From German Patent Specification No. 2,646,583, a plant of this kind is known comprising a pump driven by an eccentric on which the piston is freely mounted. The eccentric acts as a drive for both the pump and the piston, thus creating a direct constructive connection between the feed pump and the piston pump.
2020
Endvidere kendes fra tysk offentliggørelsesskrift nr. 3.334.850 et anlæg med en strømningspumpe, der fungerer som fødepumpe for stempelpumpen, hvilke pumper drives af samme aksel, og dermed er direkte 25 forbundne.Furthermore, from German publication specification No. 3,334,850 there is known a plant with a flow pump which acts as a feed pump for the piston pump, which pumps are driven by the same shaft, and thus are directly connected.
Disse kendte anlæg er vanskelige at trykregulere, da dette må ske på pumpens højtrykside, hvor måling er vanskelig og bekostelig at udføre.These known systems are difficult to regulate pressure as this must be done on the high pressure side of the pump, where measurement is difficult and expensive to perform.
3030
Det er opfindelsens formål at afhjælpe disse ulemper ved de kendte anlæg med stempelpumper, og dette opnås ved en fremgangsmåde til drift af et sådant anlæg, hvor væsken ledes til pumpens sugeside af en. uafhæn-It is an object of the invention to overcome these disadvantages of the known systems with piston pumps, and this is achieved by a method of operating such a system, where the liquid is directed to the suction side of the pump by one. independence
DK 153719BDK 153719B
2 1 gigt drevet fødepumpe i en mængde, som åbner sugeventilen, og som mindst svarer til den fra pumpens trykside afgivne mængde, hvilken væskemængde tilledes, reguleres og afbrydes i uafhængighed af pumpen.2 1 gout driven feed pump in an amount which opens the suction valve and which corresponds at least to the amount delivered from the pressure side of the pump, which amount of liquid is allowed, regulated and interrupted independently of the pump.
55
Herved opnås først og fremmest, at en direkte sammenhæng mellem fødepumpen og stempelpumpen såvel konstruktions- som funktionsmæssigt er undgået. Dette giver mulighed for at regulere såvel sugeventilen 10 som stemplet alene ved hjælp af den uafhængige føde-pumpes tryk. Herved undgås den vanskelige trykregulering på højtryksiden, hvor et bestemt omdrejningstal af pumpen vil give et bestemt højtryk. Derfor er det så fordelagtigt at kunne regulere væsketilgangen 15 på pumpens sugeside, lavtryksiden, hvor reguleringen kan ske på en betydelig enklere og mere overkommelig måde.In this way it is first and foremost achieved that a direct connection between the feed pump and the piston pump, both in design and function, has been avoided. This allows to control both the suction valve 10 and the piston solely by the pressure of the independent feed pump. This avoids the difficult pressure regulation on the high pressure side, where a certain speed of the pump will give a certain high pressure. Therefore, it is so advantageous to be able to regulate the fluid supply 15 on the suction side of the pump, the low pressure side, where the regulation can be done in a significantly simpler and more affordable way.
Man er endvidere frit stillet med hensyn til pumpens 20 omdrejningstal, idet man helt kan se bort fra risikoen for kavitation og andre uhensigtsmæssige driftsformer.Furthermore, it is freely set with respect to the speed of the pump 20, since the risk of cavitation and other inconvenient operating modes can be completely ignored.
Dette kan udnyttes, hvor pumpen for eksempel drives af en dieselmotor eller en elektromotor, som ikke 25 har det fulde drejningsmoment i start. Ved at kunne starte pumpen op ubelastet vil den hurtigt nå sit ønskede omdrejningstal, hvorefter man kan tillede væsketryk, hvorved belastningen optræder på et tidspunkt, hvor drejningsmomentet er til stede.This can be utilized where, for example, the pump is powered by a diesel engine or an electric motor which does not have the full torque at the start. By being able to start the pump up unloaded, it will quickly reach its desired speed, after which fluid pressure can be applied, whereby the load occurs at a time when the torque is present.
3030
Endvidere vil man kunne afbryde væsketilledningen til pumpen uden fare for beskadigelser, idet pumpen blot fortsætter med at rotere men med stemplet frit svævende, og uden at det berører ekscentrikken.Furthermore, it is possible to disconnect the fluid supply to the pump without risk of damage, as the pump simply continues to rotate but with the piston freely floating and without touching the eccentric.
33
DK 153719BDK 153719B
1 Man kan sammenfattende sige, at man opnår en særlig pumpekarakteristik, som svarer til en strømningspumpe, og som er kendetegnet ved, at den ved et givet omdrejningstal opretholder et konstant afgangstryk uanset 5 forbrug op til et vist niveau, og hvis dette niveau bliver til nul, dvs. at strømningen ophører, arbejder pumpen og dermed drivmotoren i tomgang, uden at man således skal recirkulere eller shunte væskestrømningen eller åbne for sikkerhedsventiler eller lignende.1 In summary, it can be said that a specific pump characteristic which corresponds to a flow pump is obtained and which, at a given rpm, maintains a constant discharge pressure irrespective of consumption up to a certain level and if this level becomes zero, ie that the flow ceases, the pump and thus the drive motor are idle without having to recirculate or shunt the fluid flow or open for safety valves or the like.
1010
Ved, som omhandlet i krav 2, at lade stemplet ligge løst an mod den drivende indretning, kan pumpens konstruktion yderligere forenkles, da der ingen mekanisk tilbageføring af stemplet behøves.By releasing the piston loosely against the driving device, as defined in claim 2, the construction of the pump can be further simplified since no mechanical return of the piston is required.
1515
Opfindelsen vil i det følgende blive beskrevet nærmere under henvisning til tegningen, der viser et diagram over et anlæg, hvor stempelpumpen er vist i snit.The invention will now be described in more detail with reference to the drawing, which shows a diagram of a plant in which the piston pump is shown in section.
20 Diagrammet viser et eksempel på et typisk hydraulisk anlæg, som omfatter de for beskrivelse af fremgangsmåden nødvendige komponenter. Anlæget er udformet som et lukket system, med en væsketank 1, hvorfra væsken suges og tilledes.The diagram shows an example of a typical hydraulic system which includes the components required for the description of the process. The plant is designed as a closed system, with a liquid tank 1, from which the liquid is sucked and fed.
25 Væsken pumpes fra tanken 1 af en strømningspumpe 2, såsom en radialpumpe eller centrifugalpumpe, gennem konditioneringelementer såsom et filter 3 og en køler 4.The liquid is pumped from the tank 1 by a flow pump 2, such as a radial pump or centrifugal pump, through conditioning elements such as a filter 3 and a cooler 4.
Herfra ledes væsken til en ventil 5, som dels kan regulere tilførslen til selve stempelpumpen 15, og dels skabe omløb eller returløb til tanken 1.From here, the liquid is fed to a valve 5, which can partly regulate the supply to the piston pump 15 itself and partly create circulation or return flow to the tank 1.
3030
DK 153719BDK 153719B
4 1 Selve stempelpumpen 5 omfatter en drivdel 12 med en drivende roterende aksel 11 hvortil en ekscentrik 10 er monteret.4 1 The piston pump 5 itself comprises a drive part 12 with a driving rotating shaft 11 to which an eccentric 10 is mounted.
5 Denne drivdel 12 kan være udformet som en selvstændig enhed, der kan af- og påmonteres uafhængig af selve pumpedelen 13.This drive part 12 can be designed as a stand-alone unit which can be removed and mounted independently of the pump part 13 itself.
Pumpedelen 13, hvoraf kun et enkelt stempel 9 er 10 vist, omfatter foruden det frem- og tilbagegående stempel 9 selve pumperummet 14, som har en sugeside og en trykside.The pump portion 13, of which only a single piston 9 is shown, comprises, in addition to the reciprocating piston 9, the pump compartment 14, which has a suction side and a pressure side.
Sugesiden er forsynet med en ventil 6, som i det 15 viste eksempel er en simpel kugleventil, bestående af en kugle, der i åben tilstand, som vist, er bevæget bort fra ventilsædet, og dermed er i åben stilling.The suction side is provided with a valve 6, which in the example shown is a simple ball valve, consisting of a ball which, in the open state, as shown, is moved away from the valve seat and is thus in the open position.
På tilsvarende måde er der på tryksiden en ventil 20 7, der åbner for passage, når væsken fra pumperummet trykker kuglen bort fra sit sæde.Similarly, on the pressure side, there is a valve 20 7 which opens for passage as the fluid from the pump compartment pushes the ball away from its seat.
Fra stempelpumpen 15 ledes væsken til det ønskede aktiveringsorgan 16, der f.eks. kan være en cylinder 25 eller motor.From the plunger pump 15, the liquid is fed to the desired actuator 16, e.g. may be a cylinder 25 or engine.
Fra dette brugssted 16 ledes væsken tilbage til tanken 1. 1From this point of use 16, the liquid is returned to the tank 1. 1
Fremgangsmåden vil herefter blive beskrevet. Ved opstart af stempelpumpen 15, kan dette ske uden at pumpen er belastet, da man kan forsinke tilledningen af væske til sugesiden, ved enten at udkoble via ventilen 5 eller forsinke starten af servopumpenThe process will then be described. When starting the piston pump 15, this can be done without the pump being loaded, as it is possible to delay the supply of liquid to the suction side, either by switching off via the valve 5 or delaying the start of the servo pump
DK 153719BDK 153719B
5 1 2. Når stempelpumpen herefter er oppe i det ønskede omdrejningstal, kan der åbnes for tilledningen, og en skånsom og rolig opstart kan etableres, idet stemplet 9 ikke vil blive belastet af væsken :i pumpe-5 rummet, men vil forblive ubelastet, indtil væsken strømmer.5 1 2. When the piston pump is then up to the desired speed, the supply line can be opened and a gentle and quiet start-up can be established, the piston 9 will not be loaded by the liquid: in the pump-5 room, but will remain unloaded, until the liquid flows.
Når anlæget er i drift, vil der forholdsvis enkelt kunne ske en måling af væsken på stempelpumpens lav-10 . tryksside, dersom der sker ændringer på stempelpumpens trykside. Ændringer af trykket på højtrykssiden vil medføre tilsvarende ændringer på lavtrykssiden, og sådanne ændringer kan lettere måles på lavtrykssi-den, hvor trykket naturligvis er lavere.When the system is in operation, it will be relatively easy to measure the liquid on the piston pump low-10. pressure side if changes occur on the pressure side of the piston pump. Changes in the pressure on the high-pressure side will result in corresponding changes on the low-pressure side, and such changes can be more easily measured on the low-pressure side, where the pressure is naturally lower.
1515
Ved regulering af ventilen 5, kan man udkoble og returnere væske til tanken 1, hvilket giver energibesparelse, idet strømningspumpen 2 optager tilsvarende mindre effekt. Således kan der reguleres på lavtryks-20 siden af en stempelpumpe, hvilket er betydeligt enklere end ved afspærring og omløb af væske på højtrykssiden.By regulating the valve 5, it is possible to disengage and return liquid to the tank 1, which gives energy savings, as the flow pump 2 absorbs correspondingly less power. Thus, a low-pressure side can be regulated by a piston pump, which is significantly simpler than by the shut-off and circulation of fluid on the high-pressure side.
Fremgangsmåden giver endvidere mulighed for en betyde-25 lig forenkling af de i anlæget indgående komponenter, hvorved der spares investeringer og vedligeholdelse.The process furthermore allows for a significant simplification of the components included in the plant, thereby saving investment and maintenance.
Ventilerne 6 og 7 i stempelpumpen kan således udformes så enkelt, at de kun omfatter et frit bevægeligt 30 ventillegeme, såsom en kugle.The valves 6 and 7 of the piston pump can be designed so simply that they comprise only a freely movable valve body, such as a ball.
Endvidere kan stempelpumpens stempel 9 være løst lejret i huset, og det vil kunne adskilles fra drivdelens ekscentrik 10, idet der ikke forekommer fjedre, 6Furthermore, the piston 9 of the piston pump can be loosely mounted in the housing and it can be separated from the eccentric 10 of the drive part, in the absence of springs, 6
DK 153719BDK 153719B
1 stødstænger eller andre mekaniske forbindelser mellem drivdelen 12 og pumpedelen 13.1 thrust bars or other mechanical connections between the drive part 12 and the pump part 13.
Servopumpen 2 sikrer at der ikke forekommer kavitation 5 på stempelpumpens sugeside, idet væsken vil ledes til pumperummet under tryk, som kan overvinde eventuelle trykfald gennem filtre, kølere eller andre indretninger .The servo pump 2 ensures that no cavitation 5 occurs on the suction side of the piston pump, as the liquid will be directed to the pump room under pressure, which can overcome any pressure drop through filters, coolers or other devices.
10 Når man ønsker at køre stempelpumpen i tomgang, kan man blot afbryde for tilledningen af væske til pumpens sugeside 6, hvorefter stemplet 9 vil indtage en neutral stilling, hvor det ingen mekanisk kontakt vil have til ekscentrikken. Dette sparer energi og reduce-15 rer slitagen.10 When you want to run the piston pump at idle, you can simply interrupt the supply of liquid to the suction side 6 of the pump, after which the piston 9 will assume a neutral position where it will have no mechanical contact to the eccentric. This saves energy and reduces wear.
Endvidere kan man undlade at montere den på tryksiden af stempelpumpen ellers nødvendige overtryksventil, som skal returnere væsken til lavtrykssiden, idet 20 der ingen væske vil kunne forlade stempelpumpen, dersom den ikke ledes til lavtryksiden. Dette betyder, at der kan spares komponenter og energi, idet stempelpumpen vil kunne løbe ubelastet i tomgang. 1 30Furthermore, it is not possible to mount it on the pressure side of the piston pump otherwise necessary pressure valve, which will return the liquid to the low pressure side, since no liquid will be able to leave the piston pump if it is not led to the low pressure side. This means that components and energy can be saved, as the piston pump can run unloaded at idle. 1 30
Claims (2)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK517884A DK153719B (en) | 1984-10-30 | 1984-10-30 | METHOD AND STAMP PUMP FOR OPERATION OF A HYDRAULIC PLANT |
| JP60504993A JPS62500676A (en) | 1984-10-30 | 1985-10-29 | Methods for hydraulic equipment operation and piston pumps |
| DE19853590547 DE3590547T1 (en) | 1984-10-30 | 1985-10-29 | Method and piston pump for operating a hydraulic system |
| AU50910/85A AU5091085A (en) | 1984-10-30 | 1985-10-29 | Fremgangsmade og stempelpumpe til drift af et hydraulisk anlaeg |
| PCT/DK1985/000101 WO1986002702A1 (en) | 1984-10-30 | 1985-10-29 | Method and piston pump for operation of a hydraulic system |
| EP85905606A EP0199798A1 (en) | 1984-10-30 | 1985-10-29 | Method and piston pump for operation of a hydraulic system |
| GB08613805A GB2179707B (en) | 1984-10-30 | 1985-10-29 | Method and piston pump for operation of a hydraulic system |
| KR1019860700399A KR870700268A (en) | 1984-10-30 | 1986-06-27 | Hydraulic system operation method and piston pump used therein |
| SE8602871A SE8602871L (en) | 1984-10-30 | 1986-06-27 | PROCEDURE AND PISTON PUMP FOR OPERATION OF A HYDRAULIC PLANT |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK517884 | 1984-10-30 | ||
| DK517884A DK153719B (en) | 1984-10-30 | 1984-10-30 | METHOD AND STAMP PUMP FOR OPERATION OF A HYDRAULIC PLANT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK517884D0 DK517884D0 (en) | 1984-10-30 |
| DK517884A DK517884A (en) | 1986-05-01 |
| DK153719B true DK153719B (en) | 1988-08-22 |
Family
ID=8140166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK517884A DK153719B (en) | 1984-10-30 | 1984-10-30 | METHOD AND STAMP PUMP FOR OPERATION OF A HYDRAULIC PLANT |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0199798A1 (en) |
| JP (1) | JPS62500676A (en) |
| KR (1) | KR870700268A (en) |
| AU (1) | AU5091085A (en) |
| DE (1) | DE3590547T1 (en) |
| DK (1) | DK153719B (en) |
| GB (1) | GB2179707B (en) |
| SE (1) | SE8602871L (en) |
| WO (1) | WO1986002702A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306377C2 (en) * | 1993-03-02 | 2000-02-10 | O & K Mining Gmbh | Intake manifold charging for mobile hydraulics |
| EP3869037A4 (en) * | 2018-10-15 | 2022-08-10 | Huangfu, Huanyu | Inertial energy storage apparatus having function of regulating pressure of fluid and energy storage method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2646583C2 (en) * | 1976-10-15 | 1985-04-11 | Robert Bosch Gmbh, 7000 Stuttgart | Self-priming piston pump |
| DE3334850A1 (en) * | 1983-09-27 | 1984-03-08 | Rainer Dipl.-Ing. 4060 Viersen Klopp | Method for switching a piston pump with charging pump, and pump system operated according to the method |
-
1984
- 1984-10-30 DK DK517884A patent/DK153719B/en not_active Application Discontinuation
-
1985
- 1985-10-29 JP JP60504993A patent/JPS62500676A/en active Pending
- 1985-10-29 AU AU50910/85A patent/AU5091085A/en not_active Abandoned
- 1985-10-29 WO PCT/DK1985/000101 patent/WO1986002702A1/en active Application Filing
- 1985-10-29 GB GB08613805A patent/GB2179707B/en not_active Expired
- 1985-10-29 EP EP85905606A patent/EP0199798A1/en not_active Withdrawn
- 1985-10-29 DE DE19853590547 patent/DE3590547T1/en not_active Withdrawn
-
1986
- 1986-06-27 KR KR1019860700399A patent/KR870700268A/en not_active Application Discontinuation
- 1986-06-27 SE SE8602871A patent/SE8602871L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62500676A (en) | 1987-03-19 |
| GB2179707A (en) | 1987-03-11 |
| GB2179707B (en) | 1988-07-27 |
| SE8602871D0 (en) | 1986-06-27 |
| SE8602871L (en) | 1986-06-27 |
| DE3590547T1 (en) | 1986-11-20 |
| KR870700268A (en) | 1987-08-20 |
| AU5091085A (en) | 1986-05-15 |
| DK517884A (en) | 1986-05-01 |
| EP0199798A1 (en) | 1986-11-05 |
| DK517884D0 (en) | 1984-10-30 |
| WO1986002702A1 (en) | 1986-05-09 |
| GB8613805D0 (en) | 1986-07-09 |
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