FR2545545A1 - ALTERNATIVE MOTION COMPRESSOR FOR VERY HIGH PRESSURE AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND A-OLEFINS - Google Patents
ALTERNATIVE MOTION COMPRESSOR FOR VERY HIGH PRESSURE AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND A-OLEFINS Download PDFInfo
- Publication number
- FR2545545A1 FR2545545A1 FR8307259A FR8307259A FR2545545A1 FR 2545545 A1 FR2545545 A1 FR 2545545A1 FR 8307259 A FR8307259 A FR 8307259A FR 8307259 A FR8307259 A FR 8307259A FR 2545545 A1 FR2545545 A1 FR 2545545A1
- Authority
- FR
- France
- Prior art keywords
- ethylene
- fluid
- polymer
- reciprocating compressor
- graphite
- 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.)
- Granted
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims description 24
- 239000005977 Ethylene Substances 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 17
- 238000006116 polymerization reaction Methods 0.000 title claims description 6
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910052709 silver Inorganic materials 0.000 claims abstract description 6
- 239000004332 silver Substances 0.000 claims abstract description 6
- 239000004642 Polyimide Substances 0.000 claims abstract description 4
- 229920001721 polyimide Polymers 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- -1 tungsten carbides Chemical class 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 239000004605 External Lubricant Substances 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229940100890 silver compound Drugs 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 claims 1
- 238000009941 weaving Methods 0.000 claims 1
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004078 waterproofing Methods 0.000 abstract 2
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000007334 copolymerization reaction Methods 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000927 Ge alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- BYDQGSVXQDOSJJ-UHFFFAOYSA-N [Ge].[Au] Chemical compound [Ge].[Au] BYDQGSVXQDOSJJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000005376 alkyl siloxane group Chemical group 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- 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
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
- F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
- F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0412—Titanium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0418—Noble metals
- F05C2201/0421—Silver
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
- F05C2201/0478—Bronze (Cu/Sn alloy)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/04—PTFE [PolyTetraFluorEthylene]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/06—Polyamides, e.g. NYLON
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/10—Polyimides, e.g. Aurum
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
- Sealing Material Composition (AREA)
Abstract
COMPRESSEUR A MOUVEMENT ALTERNATIF DESTINE AUX TRES HAUTES PRESSIONS COMPRENANT D'UNE PART AU MOINS UN PISTON PLONGEUR OU UNE CHEMISE DE CYLINDRE CONSTITUEE D'UN MATERIAU CHOISI PARMI LES FONTES, LES ACIERS ET LES CARBURES DE TUNGSTENE ET D'AUTRE PART AU MOINS UN ELEMENT D'ETANCHEITE. L'ELEMENT D'ETANCHEITE EST CONSTITUE D'UN MATERIAU COMPOSITE ASSOCIANT D'UNE PART AU MOINS UN ALLIAGE METALLIQUE CHOISI PARMI LES BRONZES ET LES ALLIAGES A BASE DE TITANE ET D'AUTRE PART SOIT AU MOINS UN POLYMERE CHOISI PARMI LES POLYTETRAFLUORETHYLENES, LES POLYIMIDES ET LES POLYIMIDES-AMIDES, SOIT UN COMPOSE FRITTE GRAPHITE-ARGENT. APPLICATION A LA COMPRESSION D'UN FLUIDE SOUS UNE PRESSION DE REFOULEMENT SUPERIEURE OU EGALE A 150 BARS.COMPRESSOR WITH ALTERNATIVE MOVEMENT INTENDED FOR VERY HIGH PRESSURES INCLUDING ON THE ONE HAND AT LEAST A PLUNGER OR A CYLINDER SHIRT CONSISTING OF A MATERIAL CHOSEN FROM CAST IRON, STEEL AND TUNGSTENE CARBIDE AND ON THE OTHER HAND WATERPROOFING. THE WATERPROOFING ELEMENT CONSISTS OF A COMPOSITE MATERIAL ASSOCIATING AT LEAST ONE PART OF A METAL ALLOY CHOSEN FROM BRONZES AND TITANIUM-BASED ALLOYS AND ON THE OTHER HAND IS AT LEAST ONE POLYMER CHOSEN FROM POLYTETRAFLUORETHYLENES, POLYIMIDES AND POLYIMIDES-AMIDES, EITHER A GRAPHITE-SILVER FRITTED COMPOUND. APPLICATION TO THE COMPRESSION OF A FLUID UNDER A DISCHARGE PRESSURE EXCEEDING OR EQUAL TO 150 BARS.
Description
La présente invention se rapporte à un compresseur à mouvement alternatifThe present invention relates to a reciprocating compressor
destiné aux très hautes pressions et à son application à un intended for very high pressures and its application to a
procédé de polymérisation d'éthylène et d'o< -oléfines. process for the polymerization of ethylene and o -olefins.
La présente invention vise à résoudre les problèmes techniques posés par la compression, sous une pression de refoulement supérieure ou The present invention aims to solve the technical problems posed by compression, under a higher pressure of discharge or
égale à 150 bars, d'un fluide répondant à au moins l'une des trois condi- equal to 150 bar, of a fluid meeting at least one of the three conditions
tions suivantes:following
le fluide contient des traces de particules abrasives. the fluid contains traces of abrasive particles.
le fluide n'est pas autolubrifiant et il intervient dans un procédé the fluid is not self-lubricating and it is involved in a process
n'acceptant pas de lubrifiant externe. not accepting external lubricant.
le fluide n'est pas autolubrifiant et il intervient dans un procédé acceptant des lubrifiants externes mais il est solvant des lubrifiants possibles. Le fluide concerné par le problème de la présente invention peut être à l'état liquide ou gazeux, sa température peut être comprise dans une gamme allant de -30 à + 2000 C à tout étage de la machine de compression, et enfin il peut être de nature chimique très diverse, par exemple hélium, ammoniac, éthylène, mélange d'éthylène et d'au moins un composé choisi parmi les "-oléfines, l'hydrogène, les hydrocarbures saturés tels que propane ou the fluid is not self-lubricating and it is involved in a process that accepts external lubricants but is a solvent for possible lubricants. The fluid concerned by the problem of the present invention may be in the liquid or gaseous state, its temperature may range from -30 to + 2000 ° C at any stage of the compression machine, and finally it may be of a very diverse chemical nature, for example helium, ammonia, ethylene, a mixture of ethylene and at least one compound chosen from "-olefins, hydrogen, saturated hydrocarbons such as propane or
butane.butane.
La compression d'un fluide sous une pression de refoulement supé- The compression of a fluid under a higher discharge pressure
rieure ou égale à 150 bars s'effectue généralement dans une machine de compression à un ou plusieurs étages, à mouvement alternatif, dont chaque cylindre comprend d'une part un piston plongeur ou une chemise de cylindre et d'autre part un élément d'étanchéité pouvant être soit (dans le cas d'un piston plongeur) au moins une garniture statique en plusieurs parties soit 150 bar or more is generally effected in a reciprocating one or more-stage compression machine, each cylinder of which comprises on the one hand a plunger or a cylinder liner and on the other hand an element of sealing may be either (in the case of a plunger) at least one static seal in several parts is
(dans le cas d'une chemise de cylindre) au moins un segment mobile solidai- (in the case of a cylinder liner) at least one solid mobile segment
rement avec le piston Dans le cas de garnitures, l'étanchéité dynamique s'effectue entre la ou les garnitures et le piston plongeur; dans le cas de segments, l'étanchéité dynamique s'effectue entre la chemise de cylindre In the case of gaskets, the dynamic seal is made between the seal (s) and the plunger; in the case of segments, dynamic sealing takes place between the cylinder liner
et le(s) segment(s).and the segment (s).
Lorsque le fluide destiné à être comprimé ne répond à aucune des trois conditions énumérées précédemment, notamment lorsque ledit fluide est autolubrifiant et/ou lorsqu'il ne contient pas de traces de particules When the fluid intended to be compressed does not meet any of the three conditions listed above, especially when said fluid is self-lubricating and / or when it does not contain traces of particles
abrasives, et/ou lorsque les surfaces en contact constitutives de l'étanché- abrasive surfaces, and / or when the contacting surfaces of the sealing
ité dynamique sont lubrifiées, la machine de compression fonctionne de manière satisfaisante pendant une durée de quelques milliers d'heures sans perturbations, pouvant atteindre jusqu'à 7 000 heures, sans qu'il soit nécessaire de choisir avec une attention particulière les matériaux The compression machine works satisfactorily for a period of a few thousand hours without any disturbance, up to 7000 hours, without the need to choose the materials with particular attention.
2 25455452 2545545
constituant les différentes parties de ladite machine Par exemple lorsque l'or comprime de l'éthylène ou un mélange d'éthylène et de comonomères polaires jusqu'à une pression de refoulement souvent comprise entre 150 et 3000 bars, dans le cadre d'un procédé de polymérisation à haute température en présence d'initiateurs de radicaux libres tel que décrit notamment dans les brevets français N O 1 584 529, 2 025 887, 2 099 267 et 2 313 399, il est co Emuun d'utiliser un compresseur à mouvement alternatif dont le piston plongeur ou la chemise de cylindre sont constitués en acier traité ou en fonte ou en un matériau de la famille des carbures de métaux comme le 1 'x tungstène et dont les éléments d'étanchéité sont réalisés en bronze tel que le bronze UE 9 P contenant 9 % d'étain, 0,3 à 1 % de phosphore et le reste en cuivre Ceci tient au fait que le flux d'éthylène à comprimer ne contient constituting the different parts of said machine For example when gold compresses ethylene or a mixture of ethylene and polar comonomers up to a discharge pressure often between 150 and 3000 bar, as part of a process of high temperature polymerization in the presence of free radical initiators such as described in particular in French Patent Nos. 1,584,529, 2,025,887, 2,099,267 and 2,313,399, it is necessary to use a reciprocating compressor. whose plunger or cylinder liner is made of treated steel or cast iron or a material of the family of metal carbides such as 1 'x tungsten and whose sealing elements are made of bronze such as bronze EU 9 P containing 9% tin, 0.3 to 1% phosphorus and the rest copper This is due to the fact that the flow of ethylene to be compressed does not contain
pas de traces de particules abrasives. no traces of abrasive particles.
Il a été constaté par contre que lorsque le fluide à comprimer répond à au moins l'une des trois conditions énumérées précédemment, un compresseur à mouvement alternatif dont les parties sont constituées des It has been found, however, that when the fluid to be compressed meets at least one of the three conditions listed above, a reciprocating compressor whose parts consist of
matériaux conununément utilisés ne peut plus fonctionner de manière satis- materials used together can no longer function satisfactorily
faisante, c'est-à-dire sans interruption, que pendant un nombre d'heures limité à quelques centaines, voire quelques dizaines, ce nombre étant doing, that is to say without interruption, for a number of hours limited to a few hundred or even a few tens, this number being
fonction du manque de lubrification et/ou de la teneur des particules abra- the lack of lubrication and / or the content of the abra-
sives dans le fluide L'analyse des causes de ce fonctionnement insatisfai- in the fluid The analysis of the causes of this unsatisfactory
sant a montré, notamment par examen au microscope optique et électronique des surfaces des éléments d'étanchéité, une usure excessivement rapide de ceux-ci conduisant inéluctablement au grippage des éléments d'étanchéité du compresseur La présente invention a pour objectif d'apporter des solutions has shown, in particular by optical and electronic microscopic examination of the surfaces of the sealing elements, an excessively rapid wear thereof which inevitably leads to jamming of the sealing elements of the compressor. The object of the present invention is to provide solutions
au problème technique ainsi exposé. to the technical problem thus exposed.
Un premier objet de la présente invention consiste en un compres- A first subject of the present invention consists of a compres-
seur à mouvement alternatif destiné aux très hautes pressions comprenant d'une part au moins un piston plongeur ou une chemise de cylindre constitué reciprocating valve for very high pressures comprising on the one hand at least one plunger or cylinder liner constituted
d'un matériau choisi parmi les fontes, les aciers et les carbures de tungs- of a material chosen from iron, steel and tungsten carbides.
tene et d'autre part au moins un élément d'étanchéité, caractérisé en ce and at least one sealing element, characterized in that
que ledit élément d'étanchéité est constitué d'un matériau composite asso- said sealing element is made of a composite material
ciant d'une part au moins un alliage métallique choisi parmi les bronzes et les alliages à base de titane et d'autre part soit au moins un polymère on the one hand at least one metal alloy selected from bronzes and titanium-based alloys and on the other hand be at least one polymer
choisi parmi les polytétrafluoréthylènes, les polyimides et les polyimides- selected from polytetrafluoroethylenes, polyimides and polyimides
amides, soit un composé fritté graphite-argent. amides, a sintered graphite-silver compound.
Parmi les bronzes utilisables pour l'élément d'étanchéité du compresseur selon l'invention figure notamment le bronze UE 9 P décrit ci-dessus Parmi les alliages à base de titane utilisables pour l'élément Among the bronzes that can be used for the sealing element of the compressor according to the invention, particular mention is made of the EU 9 P bronze described above. Among the alloys based on titanium which can be used for the element
d'étanchéité du compresseur selon J'invention figurent notamment les allia- compressor sealing according to the invention include in particular the alloys
ges de titane et d'argent tels qu'un alliage comprenant 94 % en poids de titane et 6 % en poids d'argent Les polymères utilisables pour l'élément d'étanchéité du compresseur selon l'invention peuvent éventuellement être chargés par du graphite et/ou de la fibre de verre; ils peuvent également Titanium and silver materials such as an alloy comprising 94% by weight of titanium and 6% by weight of silver. The polymers that can be used for the compressor sealing element according to the invention can optionally be loaded with graphite. and / or fiberglass; they can also
être renforcés par un tissage de bronze. to be reinforced by a bronze weave.
L'association des deux parties du matériau composite utilisé pour l'élément d'étanchéité du compresseur selon l'invention peut être réalisée selon les deux méthodes décrites ci-après Selon une première méthode, l'association est obtenue par un système de liaison du type collage au moyen d'un adhésif L'adhésif devra de préférence être capable d'atteindre une résistance au pelage supérieure ou égale à 3 KN/m à 1000 C pour un échantillon de 10 mm de largeur Selon une seconde méthode, l'association est obtenue par un système de liaison du type brasure sous vide au moyen par exemple d'un alliage or-germanium ou encore d'argent L'association The combination of the two parts of the composite material used for the compressor sealing element according to the invention can be carried out according to the two methods described below. According to a first method, the association is obtained by a connection system of the adhesive type with adhesive The adhesive should preferably be capable of achieving a peel strength greater than or equal to 3 KN / m at 1000 C for a 10 mm wide sample. According to a second method, the combination is obtained by a vacuum braze type bonding system using for example a gold-germanium alloy or silver alloy The association
peut être favorisée, selon la méthode utilisée par une géométrie particuliè- can be favored, depending on the method used by a particular geometry.
re du matériau composite consistant à insérer le polymère ou le composé re of the composite material of inserting the polymer or compound
fritté graphite-argent dans un anneau en alliage métallique. sintered graphite-silver in a metal alloy ring.
Le compresseur selon l'invention fonctionne de manière satisfai- The compressor according to the invention operates satisfactorily
sante, c'est-a-dire sans perturbations, pendant une durée supérieure ou égale à 1 000 heures: lorsque le fluide-à comprimer, liquide ou gazeux, est à tout étage dudit compresseur à une température comprise entre 300 et + 200 C, lorsque la pression de refoulement dudit fluide est supérieure ou égale à 150 bars, lorsque le mouvement alternatif du compresseur est tel que la vitesse moyenne relative de glissement d'une partie par rapport à l'autre atteint jusqu'à 5 n/s, selon la pression de refoulement, lorsque le fluide à comprimer contient des traces de particules abrasives en quantité telle que le coefficient de frottement puisse atteindre 0,5, lorsque le fluide à comprimer n'est pas autolubrifiant et qu'on ne peut health, that is to say without disturbances, for a duration greater than or equal to 1000 hours: when the liquid-to-liquid or liquid compressing fluid is at any stage of said compressor at a temperature of between 300 and 200 C. when the discharge pressure of said fluid is greater than or equal to 150 bar, when the reciprocating movement of the compressor is such that the relative average sliding speed of one part relative to the other reaches up to 5 n / s, depending on the discharge pressure, when the fluid to be compressed contains traces of abrasive particles in such a quantity that the coefficient of friction can reach 0.5, when the fluid to be compressed is not self-lubricating and can not be
obtenir le secours d'un lubrifiant externe - get help from an external lubricant -
Le compresseur à mouvement alternatif selon l'invention trouve de The reciprocating compressor according to the invention finds
nombreuses applications dans l'industrie chimique et notamment pour la poly- numerous applications in the chemical industry and in particular for poly-
mérisation de l'éthylène ou la copolymérisation de l'éthylène et des ethylene or copolymerization of ethylene and
c"-oléfines sous haute pression En effet il est connu par le brevet fran- It is known from the French patent for high-pressure
çais N O 2 021 952 de polymériser l'éthylène sous une pression supérieure à 500 bars et à une température comprise entre 1400 et 300 C, en présence d'un système catalytique du type Ziegler De nombreux systèmes catalytiques de ce type se révèlent adaptés à la polymérisation de l'éthylène, ainsi qu'à la copolymérisation de l'éthylène avec des"- oléfines, sous pression et température élevées Ces systèmes ont en commun la présence d'une part d'au moins un composé halogéné de métal de transition et d'autre part d'au moins un activateur choisi parmi les hydrures et les composés organométalliques des métaux des groupes I à III de la Classification Périodique Parmi les composés halogénés de métal de transition utilisables, bien qu'ils soient très nombreux, on peut citer les complexes Tr -allylique ou benzylique du chrome, du zirconium et du titane, les trichlorures de vanadium et de titane (ce dernier éventuellement syncristallisé avec le chlorure d'aluminium sous la forme Ti Ci 3 1 Al C 13) éventuellement fixés sur un support comprenant par No. 2,021,952 to polymerize ethylene under a pressure greater than 500 bar and at a temperature of between 1400 and 300 ° C., in the presence of a Ziegler-type catalytic system. Many such catalytic systems are found to be suitable for ethylene copolymerization, as well as the copolymerization of ethylene with olefins, under high pressure and temperature These systems have in common the presence of at least one halogenated transition metal compound and on the other hand at least one activator chosen from hydrides and organometallic compounds of the metals of Groups I to III of the Periodic Table Among the halogenated compounds of transition metal that can be used, although they are very numerous, mention may be made of tr -allyl or benzyl complexes of chromium, zirconium and titanium, trichlorides of vanadium and titanium (the latter optionally syncrystallized with the chloride of aluminum in the form Ti Ci 3 1 Al C 13) optionally attached to a support comprising by
exemple un halogénure, un monohalogénure ou un hydrohalogénure de magnésium. a halide, a monohalide or a magnesium hydrohalide.
Tous ces composés peuvent être utilisés en présence d'agents complexants tels que alcools lourds, alcoolates métalliques, silicates d'alkyle, aryl ou alkylsiloxanes, éthers ou amines Parmi les activateurs utilisables on peut citer notamminent les trialkylaluminiums, les halogénodialkylaluminiums All these compounds can be used in the presence of complexing agents such as heavy alcohols, metal alkoxides, alkyl silicates, aryls or alkylsiloxanes, ethers or amines. Among the activators that may be used, mention may be made especially of trialkylaluminiums and halodialkylaluminums.
et les alkysiloxalanes.and the alkysiloxalanes.
Dans un tel procédé de polymérisation ou copolymérisation, le mélange issu du réacteur est envoyé vers un séparateur fonctionnant sous une pression de 50 à 500 bars, dans lequel le polymère est séparé des monomères n'ayant pas réagi, puis les monomères provenant du séparateur In such a polymerization or copolymerization process, the mixture coming from the reactor is sent to a separator operating at a pressure of 50 to 500 bars, in which the polymer is separated from the unreacted monomers, and then the monomers coming from the separator.
sont comprimés jusqu'à la pression de réaction et renvoyés dans le réacteur. are compressed to the reaction pressure and returned to the reactor.
On a constaté que des quantités non négligeables de bas polymères contenant It has been found that significant amounts of low polymers containing
des résidus catalytiques, en particulier des composés d'aluminium ou d'au- catalytic residues, in particular aluminum compounds or
tres composés réducteurs, sont entraînés dans le flux de monomères non réagis à comprimer A l'entrée du compresseur, une fraction de bas polymères pouvant apparaître sous forme de particules de granulométrie comprise entre 1 et 250 microns, est l'une des causes d'abrasion des éléments d'étanchéité du compresseur, dès que la teneur en résidus catalytiques dans le fluide à recycler et comprimer dépasse 0,5 ppm (partie par million) Un second objet de la présente invention consiste en un procédé Very reducing compounds are entrained in the stream of unreacted monomers to be compressed. At the inlet of the compressor, a fraction of low polymers which can appear in the form of particles having a particle size of between 1 and 250 microns, is one of the causes of abrasion of the sealing elements of the compressor, as soon as the content of catalytic residues in the fluid to be recycled and compressed exceeds 0.5 ppm (parts per million) A second object of the present invention consists of a process
de polymérisation de l'éthylène dans un réacteur sous une pression supérieu- polymerization of ethylene in a reactor under a higher pressure than
re à 200 bars et à une température supérieure à 170 'C, en présence d'un système catalytique de type Ziegler, le mélange issu du réacteur étant envoyé vers un séparateur sous pression comprise entre 50 et 500 bars dans lequel le polymère est séparé de l'éthylène n'ayant pas réagi, l'éthylène issu du séparateur étant comprimé jusqu'à la pression du réacteur et at 200 bar and at a temperature above 170 ° C., in the presence of a Ziegler-type catalytic system, the mixture coming from the reactor being sent to a separator under pressure of between 50 and 500 bars in which the polymer is separated from the unreacted ethylene, the ethylene from the separator being compressed to the reactor pressure and
renvoyé dans celui-ci, caractérisé en ce que ladite compression de l'éthy- referred thereto, characterized in that said compression of the ethylene
ne issu du séparateur est effectuée au moyen d'un compresseur à mouvement alternatif selon l'invention tel que décrit précédemment Un tel procédé présente, du fait du fonctionnement satisfaisant du compresseur, une the separator is effected by means of a reciprocating compressor according to the invention as described above. Such a method has, because of the satisfactory operation of the compressor, a
fiabilité améliorée.improved reliability.
Le procédé selon l'invention peut être mis en oeuvre en polyméri- The process according to the invention can be carried out using polymer
sant l'éthylène en présence de 1 à 50 % en poids d'un hydrocarbure inerte tel que propane ou butane par exemple, et/ou en présence de jusqu'à 2 % en moles d'hydrogène Le procédé de l'invention est mis en oeuvre de manière continue et peut être effectué en utilisant des réacteurs soit ethylene in the presence of 1 to 50% by weight of an inert hydrocarbon such as propane or butane, for example, and / or in the presence of up to 2 mol% of hydrogen. The process of the invention is implemented continuously and can be carried out using reactors either
autoclaves soit tubulaires ou bien en utilisant un réacteur de chaque type. autoclaves either tubular or using a reactor of each type.
Lesdits réacteurs pourront comporter chacun une ou plusieurs zones réaction- The said reactors may each comprise one or more reaction zones
nelles L'invention est également applicable à la copolymérisation de The invention is also applicable to the copolymerization of
l'éthylène avec des " -oléfines telles que propylène et butène-1 par exem- ethylene with olefins such as propylene and butene-1, for example
ple, ainsi qu'à la terpolymérisation de l'éthylène avec une "-oléfine telle and the terpolymerization of ethylene with an olefin such
que le propylène et avec une dioléfine non conjuguée. than propylene and with unconjugated diolefin.
6 25455456 2545545
Claims (10)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8307259A FR2545545B1 (en) | 1983-05-02 | 1983-05-02 | ALTERNATE MOTION COMPRESSOR FOR VERY HIGH PRESSURES AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND A-OLEFINS |
JP59079325A JPS59207909A (en) | 1983-05-02 | 1984-04-19 | Reciprocatory compressor available under high pressure and use for polymerization of ethylene-alpha-olefin polymerization |
CH2006/84A CH657896A5 (en) | 1983-05-02 | 1984-04-24 | COMPRESSOR WITH ALTERNATIVE MOTION. |
LU85337A LU85337A1 (en) | 1983-05-02 | 1984-04-25 | HIGH-PRESSURE RECIPROCATING COMPRESSOR AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND GAMMA-OLEFINS |
IT48097/84A IT1179464B (en) | 1983-05-02 | 1984-04-27 | ALTERNATIVE COMPRESSOR INTENDED FOR HIGH PRESSURES AND ITS APPLICATION TO A PROCEDURE FOR THE POLYMERIZATION OF ETHYLENE AND OLEFINS |
DE3416100A DE3416100C2 (en) | 1983-05-02 | 1984-04-30 | Vibration compressors for very high pressures |
BE0/212854A BE899551A (en) | 1983-05-02 | 1984-04-30 | ALTERNATIVE COMPRESSOR FOR HIGH PRESSURES AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND ALPHA-OLEFINS. |
AU27566/84A AU579789B2 (en) | 1983-05-02 | 1984-05-01 | A reciprocating compressor intented for very high pressure and to its application to a process for the polymerisation of ethylene and ``-olefines |
CA000453277A CA1249983A (en) | 1983-05-02 | 1984-05-01 | HIGH PRESSURE RECIPROCATING MOTION COMPRESSOR AND USE THEREOF FOR THE POLYMERIZATION OF ETHYLENE AND .alpha.-OLEFINS |
GB08411092A GB2141491B (en) | 1983-05-02 | 1984-05-01 | Reciprocating compressor and process for the polymerisation of ethylene and a-olefins |
NL8401387A NL194048C (en) | 1983-05-02 | 1984-05-02 | Compressor with reciprocating movement. |
ES556977A ES8707556A1 (en) | 1983-05-02 | 1986-07-28 | Reciprocating compressor and process for the polymerisation of ethylene and alpha -olefins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8307259A FR2545545B1 (en) | 1983-05-02 | 1983-05-02 | ALTERNATE MOTION COMPRESSOR FOR VERY HIGH PRESSURES AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND A-OLEFINS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2545545A1 true FR2545545A1 (en) | 1984-11-09 |
FR2545545B1 FR2545545B1 (en) | 1987-04-03 |
Family
ID=9288469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8307259A Expired FR2545545B1 (en) | 1983-05-02 | 1983-05-02 | ALTERNATE MOTION COMPRESSOR FOR VERY HIGH PRESSURES AND ITS APPLICATION TO A PROCESS FOR THE POLYMERIZATION OF ETHYLENE AND A-OLEFINS |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS59207909A (en) |
AU (1) | AU579789B2 (en) |
BE (1) | BE899551A (en) |
CA (1) | CA1249983A (en) |
CH (1) | CH657896A5 (en) |
DE (1) | DE3416100C2 (en) |
ES (1) | ES8707556A1 (en) |
FR (1) | FR2545545B1 (en) |
GB (1) | GB2141491B (en) |
IT (1) | IT1179464B (en) |
LU (1) | LU85337A1 (en) |
NL (1) | NL194048C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2611020A1 (en) * | 1987-02-13 | 1988-08-19 | Abg Semca | Piston ring |
EP0333961A1 (en) * | 1988-03-25 | 1989-09-27 | Abg Semca S.A. | Seal ring for a piston |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5316321A (en) * | 1991-07-15 | 1994-05-31 | Teikoku Piston Ring Co., Ltd. | Nonferrous piston ring with hard surface treatment layer |
WO1998031936A1 (en) * | 1997-01-17 | 1998-07-23 | Maschinenfabrik Sulzer-Burckhardt Ag | Reciprocating compressor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852097A (en) * | 1953-04-27 | 1958-09-16 | Union Carbide Corp | Lubricating device |
DE1027023B (en) * | 1953-05-23 | 1958-03-27 | Dipl Landw Kurt Karsten | Pistons, especially for engines driven by compressed air |
US3315881A (en) * | 1965-07-23 | 1967-04-25 | Worthington Corp | Self-lubricating system particularly adaptable for use in high pressure compressors |
DE1806964A1 (en) * | 1968-11-05 | 1970-07-02 | Bbc Brown Boveri & Cie | (semi) hermetically sealed electromotor compressor - for compressing dry or wet gases |
-
1983
- 1983-05-02 FR FR8307259A patent/FR2545545B1/en not_active Expired
-
1984
- 1984-04-19 JP JP59079325A patent/JPS59207909A/en active Granted
- 1984-04-24 CH CH2006/84A patent/CH657896A5/en not_active IP Right Cessation
- 1984-04-25 LU LU85337A patent/LU85337A1/en unknown
- 1984-04-27 IT IT48097/84A patent/IT1179464B/en active
- 1984-04-30 BE BE0/212854A patent/BE899551A/en not_active IP Right Cessation
- 1984-04-30 DE DE3416100A patent/DE3416100C2/en not_active Expired - Lifetime
- 1984-05-01 GB GB08411092A patent/GB2141491B/en not_active Expired
- 1984-05-01 CA CA000453277A patent/CA1249983A/en not_active Expired
- 1984-05-01 AU AU27566/84A patent/AU579789B2/en not_active Expired
- 1984-05-02 NL NL8401387A patent/NL194048C/en not_active IP Right Cessation
-
1986
- 1986-07-28 ES ES556977A patent/ES8707556A1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2611020A1 (en) * | 1987-02-13 | 1988-08-19 | Abg Semca | Piston ring |
EP0333961A1 (en) * | 1988-03-25 | 1989-09-27 | Abg Semca S.A. | Seal ring for a piston |
Also Published As
Publication number | Publication date |
---|---|
FR2545545B1 (en) | 1987-04-03 |
BE899551A (en) | 1984-10-30 |
JPH0460132B2 (en) | 1992-09-25 |
IT1179464B (en) | 1987-09-16 |
GB2141491A (en) | 1984-12-19 |
CA1249983A (en) | 1989-02-14 |
NL194048B (en) | 2001-01-02 |
GB8411092D0 (en) | 1984-06-06 |
JPS59207909A (en) | 1984-11-26 |
ES8707556A1 (en) | 1987-08-16 |
IT8448097A0 (en) | 1984-04-27 |
AU2756684A (en) | 1984-11-08 |
NL8401387A (en) | 1984-12-03 |
AU579789B2 (en) | 1988-12-08 |
LU85337A1 (en) | 1984-09-24 |
DE3416100A1 (en) | 1984-11-15 |
DE3416100C2 (en) | 1995-05-18 |
ES556977A0 (en) | 1987-08-16 |
CH657896A5 (en) | 1986-09-30 |
GB2141491B (en) | 1987-01-28 |
NL194048C (en) | 2001-05-03 |
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