EP1915530B1 - Cryogenic compressor comprising a high-pressure phase separator - Google Patents
Cryogenic compressor comprising a high-pressure phase separator Download PDFInfo
- Publication number
- EP1915530B1 EP1915530B1 EP06754048A EP06754048A EP1915530B1 EP 1915530 B1 EP1915530 B1 EP 1915530B1 EP 06754048 A EP06754048 A EP 06754048A EP 06754048 A EP06754048 A EP 06754048A EP 1915530 B1 EP1915530 B1 EP 1915530B1
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- Prior art keywords
- compressor
- piston
- cylinder wall
- space
- liquid
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Classifications
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- 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
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- 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
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
- F04B23/023—Pumping installations or systems having reservoirs the pump being immersed in the reservoir only the pump-part being immersed, the driving-part being outside the reservoir
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- 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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
- F04B37/20—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids for wet gases, e.g. wet air
Definitions
- the invention relates to a compressor, in particular a compressor for cryogenic media, preferably for liquid hydrogen, comprising a compressor chamber surrounded by a cylinder wall, in which a compressor piston is moved linearly, a suction and a pressure valve disposed in the region of the lower end position of the compressor piston are, and at least partially surrounding the compressor space liquid space .
- cryogenic media are to be understood below as cryogenic liquids, in particular liquid hydrogen, liquefied natural gas, liquid nitrogen, liquid oxygen and other liquefied gases.
- Compressors of any kind are well known in the art. Common to all of them is that the medium to be compressed is fed into a compressor chamber via a spring-loaded suction valve, then compressed and then withdrawn via a pressure valve from the compressor chamber.
- a compressor having the features as defined in the preamble of claim 1 is made US patent 2,054,710 known.
- the spring force of the spring used for closing a suction valve - are preferably coil springs - is usually chosen so that a defined closing of the suction valve is achieved, the suction valve is thus pressed into its valve seat and thereby closed.
- Object of the present invention is to provide a generic compressor, in particular a generic compressor for cryogenic media, specify, in which the aforementioned disadvantages can be avoided.
- a generic compressor which is characterized in that the cylinder wall at least one opening, which corresponds to the liquid space, and at least one opening, can be removed via the gaseous medium from the compressor chamber having, wherein the openings Positions of the cylinder wall are arranged, which are run over by the compressor piston.
- the compressor according to the invention with high-pressure phase separator as well as further embodiments thereof, which constitute subjects of the dependent claims, are explained in more detail with reference to the embodiment shown in the figure.
- the figure shows a lateral schematic sectional view through a possible embodiment of the compressor according to the invention with high-pressure phase separator.
- a compressor chamber R surrounded by a cylinder wall 1 is provided: in this compressor piston K is moved linearly back and forth or up and down.
- the two reversal points of the compressor piston K are referred to below as the lower and upper end position of the compressor piston K.
- the compressor chamber R and the cylinder wall 1 are at least partially surrounded by a liquid space F, which is formed by the liquid medium to be compressed. Above this liquid space F, a gas volume or space G is formed.
- one of the openings 2 corresponds to the liquid space, while gaseous medium can be removed from the compressor space R via the other opening 3.
- the resulting from the suction through the opening 2 gas can now the Leave the compressor chamber R via the opening 3 and be replaced by inflowing, liquid medium. This leads to an increase in the delivery rate and a reduction in specific compaction work.
- the compressed by means of the piston K gas leaves the compressor chamber R with open pressure valve D via the gas discharge line 6 and is then fed via a high-pressure line to a consumer.
- the two openings 2 and 3 are formed according to an advantageous embodiment of the compressor according to the invention preferably in the form of one and / or more slots.
- the openings 2 and 3 are preferably arranged at locations of the cylinder wall 1, which are only then run over by the compressor piston K or, if this is reached immediately before its upper end position or in its end position.
- the compressor piston K is shown in its upper end position.
- the two openings 2 and 3 are now released, so that via the opening 2 to be compressed, liquid medium from the liquid space F in the compressor chamber R can flow (shown by the parallel drawn arrows).
- This inflowing liquid medium supplements the liquid quantity F 'already in the compressor chamber R, which results from the liquid medium flowing in via the suction valve S during the suction tract.
- the gaseous medium G 'formed during the suction cycle can escape from the compressor chamber R via the opening 3 or the gas discharge line 4. This escape of the gaseous medium is supported by the liquid medium flowing in via the opening 2, since the gaseous medium G 'located in the compressor chamber R is displaced from the compressor chamber R by the inflowing liquid medium.
- the suction valve S has on its the compressor piston K facing surface at least one recess; this is designed such that between the suction valve S and the compressor piston K, a negative pressure.
- the shape of the recess (s) to be provided on the surface of the suction valve S facing the compressor piston K can, in principle, be chosen arbitrarily; the decisive factor is ultimately that it comes to the formation of a negative pressure between the suction valve S and the compressor piston K. Also, only one or more wells can be provided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Details Of Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft einen Verdichter, insbesondere einen Verdichter für kryogene Medien, vorzugsweise für flüssigen Wasserstoff, aufweisend einen von einer Zylinderwand umgebenen Verdichterraum, in dem ein Verdichterkolben linear bewegt wird, ein Saug- und ein Druckventil, die im Bereich der unteren Endlage des Verdichterkolbens angeordnet sind, und einen den Verdichterraum zumindest teilweise umgebenden Flüssigkeitsraum..The invention relates to a compressor, in particular a compressor for cryogenic media, preferably for liquid hydrogen, comprising a compressor chamber surrounded by a cylinder wall, in which a compressor piston is moved linearly, a suction and a pressure valve disposed in the region of the lower end position of the compressor piston are, and at least partially surrounding the compressor space liquid space ..
Unter dem Begriff "kryogene Medien" seien nachfolgend sog. tiefkalte Flüssigkeiten, insbesondere flüssiger Wasserstoff, verflüssigtes Erdgas, flüssiger Stickstoff, flüssiger Sauerstoff und andere verflüssigte Gase zu verstehen.The term "cryogenic media" are to be understood below as cryogenic liquids, in particular liquid hydrogen, liquefied natural gas, liquid nitrogen, liquid oxygen and other liquefied gases.
Verdichter jeglicher Art sind aus dem Stand der Technik hinlänglich bekannt. Ihnen allen ist gemein, dass über ein federbelastetes Saugventil das zu verdichtende Medium in einen Verdichterraum geführt, verdichtet und anschließend über ein Druckventil aus dem Verdichterraum abgezogen wird. Ein Verdichter mit den Merkmalen, wie sie im Oberbegriff von Anspruch 1 definiert sind, ist aus
Die Federkraft der für das Schließen eines Saugventiles verwendeten Feder - hierbei handelt es sich vorzugsweise um Schraubenfedern - wird im Regelfall so gewählt, dass ein definiertes Schließen des Saugventiles erreicht wird, das Saugventil also in seinen Ventilsitz gedrückt und dadurch verschlossen wird.The spring force of the spring used for closing a suction valve - these are preferably coil springs - is usually chosen so that a defined closing of the suction valve is achieved, the suction valve is thus pressed into its valve seat and thereby closed.
Während des Saugtaktes des Verdichters - dabei wird der Verdichterkolben von der unteren in die obere Endlage bewegt - müssen die Federkraft und in Abhängigkeit von der Anordnung des Saugventiles (zumindest teilweise) dessen Gewichtskraft durch das in den Verdichterraum einströmende Medium überwunden werden.During the suction stroke of the compressor - while the compressor piston is moved from the lower to the upper end position - the spring force and depending on the arrangement of the suction valve (at least partially) its weight must be overcome by the medium flowing into the compressor chamber.
Insbesondere dann, wenn mittels des Verdichters ein kryogenes Medium, wie beispielsweise flüssiger Wasserstoff, angesaugt wird, kommt es aufgrund der bisher verwendeten Saugventilkonstruktionen zu nicht unerheblichen Verlusten bzgl. der Förderleistung, da das über das Saugventil in den Verdichterraum eintretende Medium beim Überwinden der vorbeschriebenen Kräfte des Saugventiles zumindest teilweise verdampft.In particular, if by means of the compressor, a cryogenic medium, such as liquid hydrogen, is sucked in, there is due to the Saugventilkonstruktionen used to considerable losses in terms of the flow rate, as the over the suction valve entering the compressor room medium at least partially evaporated when overcoming the above-described forces of the suction valve.
Dies hat zur Folge, dass sich der Flüssiganteil des zu verdichtenden Mediums verringert, woraus eine Verringerung der Förderleistung und eine Erhöhung der spezifischen Verdichterleistung resultieren.This has the consequence that the liquid content of the medium to be compressed decreases, resulting in a reduction of the capacity and an increase in the specific compressor capacity.
Aufgabe der vorliegenden Erfindung ist es, einen gattungsgemäßen Verdichter, insbesondere einen gattungsgemäßen Verdichter für kryogene Medien, anzugeben, bei dem die vorgenannten Nachteile vermieden werden können.Object of the present invention is to provide a generic compressor, in particular a generic compressor for cryogenic media, specify, in which the aforementioned disadvantages can be avoided.
Zur Lösung dieser Aufgabe wird ein gattungsgemäßer Verdichter vorgeschlagen, der dadurch gekennzeichnet ist, dass die Zylinderwand wenigstens eine Öffnung, die mit dem Flüssigkeitsraum korrespondiert, und wenigstens eine Öffnung, über die gasförmiges Medium aus dem Verdichterraum abgeführt werden kann, aufweist, wobei die Öffnungen an Stellen der Zylinderwand angeordnet sind, die von dem Verdichterkolben überfahren werden.To solve this problem, a generic compressor is proposed, which is characterized in that the cylinder wall at least one opening, which corresponds to the liquid space, and at least one opening, can be removed via the gaseous medium from the compressor chamber having, wherein the openings Positions of the cylinder wall are arranged, which are run over by the compressor piston.
Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Verdichters sind dadurch gekennzeichnet, dass
- die Ausbildung der Öffnungen in Form eines und/oder mehrerer Schlitze erfolgt,
- die Öffnung(en), über die gasförmiges Medium aus dem Verdichterraum abgeführt werden kann, mit einer Gasabführleitung in Wirkverbindung steht bzw. stehen,
- die Öffnungen an Stellen der Zylinderwand angeordnet sind, die erst dann von dem Verdichterkolben freigegeben werden, wenn dieser unmittelbar vor seiner oberen Endlage oder in seiner oberen Endlage angelangt ist.
- das Saugventil auf seiner dem Verdichterkolben zugewandten Fläche wenigstens eine Vertiefung aufweist, wobei die Vertiefung derart ausgebildet ist, dass zwischen dem Saugventil und dem Verdichterkolben ein Unterdruck entsteht.
- the openings are formed in the form of one and / or more slots,
- the opening (s), via which gaseous medium can be removed from the compressor chamber, is or are in operative connection with a gas discharge line,
- the openings are arranged at points of the cylinder wall, which are released from the compressor piston only when it has reached immediately before its upper end position or in its upper end position.
- the suction valve has on its surface facing the compressor piston at least one recess, wherein the recess is formed such that a negative pressure is created between the suction valve and the compressor piston.
Der erfindungsgemäße Verdichter mit Hochdruckphasentrenner sowie weitere Ausgestaltungen desselben, die Gegenstände der abhängigen Patentansprüche darstellen, seien anhand des in der Figur dargestellten Ausführungsbeispieles näher erläutert. Die Figur zeigt eine seitliche schematisierte Schnittdarstellung durch eine mögliche Ausführungsform des erfindungsgemäßen Verdichters mit Hochdruckphasentrenner.The compressor according to the invention with high-pressure phase separator as well as further embodiments thereof, which constitute subjects of the dependent claims, are explained in more detail with reference to the embodiment shown in the figure. The figure shows a lateral schematic sectional view through a possible embodiment of the compressor according to the invention with high-pressure phase separator.
Innerhalb eines Verdichtergehäuses V ist ein von einer Zylinderwand 1 umgebener Verdichterraum R vorgesehen: In diesem wird ein Verdichterkolben K linear hin und her bzw. auf und ab bewegt. Die beiden Umkehrpunkte des Verdichterkolbens K werden nachfolgend als untere und obere Endlage des Verdichterkolbens K bezeichnet.Within a compressor housing V, a compressor chamber R surrounded by a
Am Boden des Verdichterraumes R ist ein mittels einer Feder 5 belastetes Saugventil S und ein - lediglich schematisch dargestelltes - federbelastetes Druckventil D angeordnet. Beide Ventile werden über die mittels der Federn erzeugten Kräfte in ihre Ventilsitze gedrückt und dadurch geschlossen. Der Verdichterraum R bzw. die Zylinderwand 1 sind zumindest teilweise von einem Flüssigkeitsraum F, der durch das zu verdichtende, flüssige Medium gebildet wird, umgeben. Oberhalb dieses Flüssigkeitsraumes F ist ein Gasvolumen bzw. -raum G ausgebildet.At the bottom of the compressor chamber R is loaded by a
Zum Stand der Technik zählende Verdichterkonstruktionen weisen die in der Figur dargestellten Öffnungen 2 und 3 nicht auf. Während des Saugtaktes - dabei bewegt sich der Verdichterkolben K aus der unteren in die obere Endlage - strömt über das Saugventil S flüssiges Medium aus dem Flüssigkeitsraum F in den Verdichterraum R, wobei das flüssige Medium - wie eingangs erläutert - zumindest teilweise verdampft.Prior art compressor designs do not have the
Erfindungsgemäß sind nunmehr wenigstens zwei Öffnungen 2 und 3 vorgesehen. Hierbei korrespondiert eine der Öffnungen 2 mit dem Flüssigkeitsraum, während über die andere Öffnung 3 gasförmiges Medium aus dem Verdichterraum R abgeführt werden kann. Bei dem in der Figur dargestellten Ausführungsbeispiel des erfindungsgemäßen Verdichters erfolgt dieses Abführen des gasförmigen Mediums aus dem Verdichterraum R über eine Gasabführleitung 4. Das durch den Ansaugvorgang über die Öffnung 2 entstandene Gas kann nunmehr den Verdichterraum R über die Öffnung 3 verlassen und durch nachströmendes, flüssiges Medium ersetzt werden. Dies führt zu einer Steigerung der Förderleistung und einer Senkung der spezifischen Verdichtungsarbeit.According to the invention now at least two
Das mittels des Kolbens K verdichtete Gas verlässt den Verdichterraum R bei geöffnetem Druckventil D über die Gasabführleitung 6 und wird anschließend über eine Hochdruckleitung einem Verbraucher zugeführt.The compressed by means of the piston K gas leaves the compressor chamber R with open pressure valve D via the
Die beiden Öffnungen 2 und 3 sind entsprechend einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verdichters vorzugsweise in Form eines und/oder mehrerer Schlitze ausgebildet.The two
Die Öffnungen 2 und 3 sind vorzugsweise an Stellen der Zylinderwand 1 angeordnet, die erst dann von dem Verdichterkolben K überfahren sind bzw. werden, wenn dieser unmittelbar vor seiner oberen Endlage oder in seiner Endlage angelangt ist.The
In der Figur sei der Verdichterkolben K in seiner oberen Endlage dargestellt. Die beiden Öffnungen 2 und 3 sind nunmehr freigegeben, so dass über die Öffnung 2 zu verdichtendes, flüssiges Medium aus dem Flüssigkeitsraum F in den Verdichterraum R einströmen kann (dargestellt durch die parallel gezeichneten Pfeile). Dieses einströmende flüssige Medium ergänzt die bereits im Verdichterraum R befindliche Flüssigkeitsmenge F', die aus dem über das Saugventil S während des Saugtraktes einströmenden flüssigen Medium resultiert.In the figure, the compressor piston K is shown in its upper end position. The two
Über die Öffnung 3 bzw. die Gasabführleitung 4 kann das während des Saugtaktes gebildete gasförmige Medium G' aus dem Verdichterraum R entweichen. Dieses Entweichen des gasförmigen Mediums wird durch das über die Öffnung 2 einströmende flüssige Medium unterstützt, da durch das einströmende flüssige Medium das im Verdichterraum R befindliche gasförmige Medium G' aus dem Verdichterraum R verdrängt wird.The gaseous medium G 'formed during the suction cycle can escape from the compressor chamber R via the
Im Gegensatz zu den bis dato bekannten Verdichterkonstruktionen muss der zwangsläufig entstehende Gasanteil G' des zu verdichtenden Mediums nunmehr nicht mehr mitverdichtet werden, da er vor der Verdichtung aus dem Verdichterraum R abgeführt werden kann. Durch das Vorsehen der Öffnung 2, die mit dem Flüssigkeitsraum F korrespondiert, wird nunmehr sicher gestellt, dass der Verdichterraum R vor der Verdichtung vollständig mit flüssigem Medium F' befüllt wird.In contrast to the previously known compressor designs, the inevitably resulting gas fraction G 'of the medium to be compressed no longer needs to be compressed, since it can be removed from the compressor chamber R before compression. By providing the
In der Figur nicht dargestellt ist eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Verdichters, gemäß der das Saugventil S auf seiner dem Verdichterkolben K zugewandten Fläche wenigstens eine Vertiefung aufweist; diese ist hierbei derart ausgebildet, dass zwischen dem Saugventil S und dem Verdichterkolben K ein Unterdruck entsteht.Not shown in the figure is a further advantageous embodiment of the compressor according to the invention, according to which the suction valve S has on its the compressor piston K facing surface at least one recess; this is designed such that between the suction valve S and the compressor piston K, a negative pressure.
Bewegt sich der Verdichterkolben K nunmehr während des Saugtaktes nach oben, wird das Saugventil S aufgrund des entstandenen Unterdruckes zwischen ihm und dem Verdichterkolben K von diesem bewegt bzw. angehoben.If the compressor piston K now moves upwards during the suction cycle, the suction valve S is moved or lifted by it due to the resulting negative pressure between it and the compressor piston K.
Die Form der auf der dem Verdichterkolben K zugewandten Fläche des Saugventiles S vorzusehenden Vertiefung(en) kann im Prinzip beliebig gewählt werden; entscheidend ist letztendlich nur, dass es zur Ausbildung eines Unterdruckes zwischen Saugventil S und Verdichterkolben K kommt. Auch können lediglich eine oder aber auch mehrere Vertiefungen vorgesehen werde.The shape of the recess (s) to be provided on the surface of the suction valve S facing the compressor piston K can, in principle, be chosen arbitrarily; the decisive factor is ultimately that it comes to the formation of a negative pressure between the suction valve S and the compressor piston K. Also, only one or more wells can be provided.
Mittels der vorbeschriebenen Erfindung wird erreicht, dass der Flüssiganteil im Verdichterraum ansteigt, woraus eine höhere Förderleistung des erfindungsgemäßen Verdichters resultiert. Somit kann eine Verringerung der spezifischen Verdichterleistung bezogen auf die Menge des geförderten bzw. verdichteten Mediums erzielt werden.By means of the above-described invention it is achieved that the liquid fraction in the compressor chamber increases, which results in a higher delivery rate of the compressor according to the invention. Thus, a reduction of the specific compressor capacity relative to the amount of the conveyed or compressed medium can be achieved.
Die mit dem erfindungsgemäßen Verdichter verbundenen Vorteile werden durch eine gegenüber dem Stand der Technik geringfügig kompliziertere Verdichterkonstruktion erkauft; die mit ihr verbundenen Mehrkosten werden jedoch durch die erreichten Vorteile mehr als kompensiert.The advantages associated with the compressor according to the invention are achieved by a comparison with the prior art slightly more complicated compressor design; However, the additional costs associated with it are more than compensated for by the benefits achieved.
Claims (4)
- Compressor, in particular compressor for cryogenic media, preferably for liquid hydrogen, having a compressor space which is surrounded by a cylinder wall and in which a compressor piston is moved linearly, a suction and a delivery valve which are arranged in the region of the lower end position of the compressor piston, and a liquid space at least partially surrounding the compressor space, the cylinder wall (1) having at least one orifice (2), which corresponds to the liquid space (F), and at least one orifice (3), via which gaseous medium can be discharged from the compressor space (R), and the orifices (2, 3) being arranged at locations on the cylinder wall (1) which are crossed by the compressor piston (K), characterized in that the orifice or orifices (3), via which gaseous medium can be discharged from the compressor space (R), is or are connected operatively to a gas discharge line (4).
- Compressor according to Claim 1, characterized in that the orifices (2, 3) are designed in the form of one or more slots.
- Compressor according to Claim 1 or 2, characterized in that the orifices (2, 3) are arranged at locations on the cylinder wall (1) which are released by the compressor piston (K) only when the latter has arrived directly in front of its upper end position or at its upper end position.
- Compressor according to one of the preceding Claims 1 to 3, characterized in that the suction valve (S) has at least one depression on its face confronting the compressor piston (K), the depression being designed in such a way that a vacuum occurs between the suction valve (S) and the compressor piston (K).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005028200A DE102005028200A1 (en) | 2005-06-17 | 2005-06-17 | Cryo-compressor with high-pressure phase separator |
PCT/EP2006/005241 WO2006133813A1 (en) | 2005-06-17 | 2006-06-01 | Cryogenic compressor comprising a high-pressure phase separator |
Publications (2)
Publication Number | Publication Date |
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EP1915530A1 EP1915530A1 (en) | 2008-04-30 |
EP1915530B1 true EP1915530B1 (en) | 2009-01-28 |
Family
ID=36655093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP06754048A Not-in-force EP1915530B1 (en) | 2005-06-17 | 2006-06-01 | Cryogenic compressor comprising a high-pressure phase separator |
Country Status (6)
Country | Link |
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US (1) | US20080213110A1 (en) |
EP (1) | EP1915530B1 (en) |
JP (1) | JP4988726B2 (en) |
AT (1) | ATE422026T1 (en) |
DE (2) | DE102005028200A1 (en) |
WO (1) | WO2006133813A1 (en) |
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JP4840644B2 (en) * | 2006-02-22 | 2011-12-21 | 株式会社ミクニ | Plunger pump |
EP2604840A1 (en) * | 2011-12-16 | 2013-06-19 | Astrium GmbH | Conveyor device for cryogenic liquids |
CN106979135B (en) * | 2017-03-30 | 2018-07-03 | 宁波胜杰康生物科技有限公司 | Cryogen pump group part |
US10774820B2 (en) | 2017-11-13 | 2020-09-15 | Caterpillar Inc. | Cryogenic pump |
DE102017222381A1 (en) * | 2017-12-11 | 2019-06-13 | Robert Bosch Gmbh | LPG pump and method for operating a LPG pump |
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US5638776A (en) * | 1993-02-04 | 1997-06-17 | Raynor; Gilbert E. | Internal combustion engine |
US5702238A (en) * | 1996-02-06 | 1997-12-30 | Daniel Cecil Simmons | Direct drive gas compressor with vented distance piece |
NL1010144C2 (en) * | 1998-09-21 | 2000-03-22 | Doornes Transmissie Bv | Continuously variable transmission. |
BR9805280A (en) * | 1998-11-24 | 2000-06-06 | Brasil Compressores Sa | Reciprocating compressor with linear motor |
DE10000675C2 (en) * | 2000-01-11 | 2001-11-15 | Otten Ernst Wilhelm | Linear feedthrough, device and method for the highly productive generation of highly nuclear-polarized helium-3 gas |
US6584791B2 (en) * | 2001-04-05 | 2003-07-01 | Bristol Compressors, Inc. | Pressure equalization system and method |
US6663350B2 (en) * | 2001-11-26 | 2003-12-16 | Lewis Tyree, Jr. | Self generating lift cryogenic pump for mobile LNG fuel supply system |
JP2004019544A (en) * | 2002-06-17 | 2004-01-22 | Nec Kansai Ltd | Chemical pump with bubble-releasing mechanism |
US7381035B2 (en) * | 2004-04-14 | 2008-06-03 | Nordson Corporation | Piston pump with check shaft |
DE102005024888A1 (en) * | 2005-05-31 | 2006-12-07 | Linde Ag | Cryo compressor with laterally arranged pressure valve |
US7410348B2 (en) * | 2005-08-03 | 2008-08-12 | Air Products And Chemicals, Inc. | Multi-speed compressor/pump apparatus |
US7603858B2 (en) * | 2007-05-11 | 2009-10-20 | Lawrence Livermore National Security, Llc | Harmonic engine |
-
2005
- 2005-06-17 DE DE102005028200A patent/DE102005028200A1/en not_active Withdrawn
-
2006
- 2006-06-01 DE DE502006002758T patent/DE502006002758D1/en active Active
- 2006-06-01 US US11/917,754 patent/US20080213110A1/en not_active Abandoned
- 2006-06-01 WO PCT/EP2006/005241 patent/WO2006133813A1/en not_active Application Discontinuation
- 2006-06-01 JP JP2008516169A patent/JP4988726B2/en not_active Expired - Fee Related
- 2006-06-01 AT AT06754048T patent/ATE422026T1/en not_active IP Right Cessation
- 2006-06-01 EP EP06754048A patent/EP1915530B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE502006002758D1 (en) | 2009-03-19 |
US20080213110A1 (en) | 2008-09-04 |
DE102005028200A1 (en) | 2006-12-21 |
WO2006133813A1 (en) | 2006-12-21 |
EP1915530A1 (en) | 2008-04-30 |
ATE422026T1 (en) | 2009-02-15 |
JP4988726B2 (en) | 2012-08-01 |
JP2008544135A (en) | 2008-12-04 |
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