EP2699800B1 - Pompe à fluide et méthode de pompage de fluide - Google Patents

Pompe à fluide et méthode de pompage de fluide Download PDF

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Publication number
EP2699800B1
EP2699800B1 EP12773702.1A EP12773702A EP2699800B1 EP 2699800 B1 EP2699800 B1 EP 2699800B1 EP 12773702 A EP12773702 A EP 12773702A EP 2699800 B1 EP2699800 B1 EP 2699800B1
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EP
European Patent Office
Prior art keywords
valve
fluid
inlet
outlet
compression member
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.)
Active
Application number
EP12773702.1A
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German (de)
English (en)
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EP2699800A2 (fr
EP2699800A4 (fr
Inventor
Eckhard Bez
Ian Owen
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Hyperspin Ltd
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Hyperspin Ltd
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Publication of EP2699800A2 publication Critical patent/EP2699800A2/fr
Publication of EP2699800A4 publication Critical patent/EP2699800A4/fr
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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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • 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
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • 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
    • 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
    • F04B39/08—Actuation of distribution 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
    • 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
    • F04B39/10—Adaptations or arrangements of distribution 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
    • 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
    • F04B53/18—Lubricating
    • 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
    • F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • 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
    • F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0011—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having an oscillating movement
    • 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
    • F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0015—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement
    • 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
    • F04B7/0057—Mechanical driving means therefor, e.g. cams
    • 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
    • F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
    • 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
    • F04B7/0208—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0225—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement
    • 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

Definitions

  • FIG. 1 shows a known fluid pump 1 (which may also be referred to as a compressor) that is particularly suited to use as a vacuum pump under lubricant-free conditions (i.e. as a 'dry' pump).
  • the pump has a cylinder 2 within which a piston 10 is arranged to be slidable.
  • the valve disc 31 is displaceable between a seated condition in which the valve disc 31 abuts the valve seat 2S forming a gas tight seal therewith, and an open condition in which gas is allowed to pass between the valve seat 2S and the disc 31 and out from the cylinder 2.
  • the outlet valve 30A may assume a closed condition or an open condition.
  • a rotary-linear drive means and not a linear drive assembly is employed to drive a piston reciprocating within a cylinder.
  • the rotary-linear drive means employs a crank shaft or similar that is coupled to the piston by means of a connecting rod. Circular motion of the crank shaft is converted to linear motion of the piston by the connecting rod as described above with respect to FIG. 1 .
  • a hyperpolarised gas typically loses its magnetic polarisation over time. A reduction in the amount of time the gas is present within the apparatus may therefore be desirable in some applications, e.g. where hyperpolarised gas is being pumped into a chamber for the performance of an experiment or being pumped to a human or animal for inhalation.
  • the valve means may be provided in a head portion of the apparatus facing the compression member.
  • At least a portion of the compression member is arranged to reciprocate between a first position proximate the valve means and a second position distal the valve means.
  • the apparatus may be arranged wherein the closure member of the inlet valve is operable to open in a direction away from the pump chamber.
  • FIG. 2 shows a portion of a pump apparatus or pump 600 according to an embodiment of the present invention.
  • the outlet valve 631 may be closed.
  • the precise position of the piston 610 at which the outlet valve 631 is closed may be controlled in order to optimise the amount of gas expelled before the inlet valve 633 is opened.
  • auxiliary valve 741 and inlet valve 733 are all closed.
  • the auxiliary valve 741 and inlet valve 733 are then opened and the piston 710 translated away from the head block 703 to draw fluid into the cylinder 702 through the inlet valve 733.
  • a first position A of the shuttle element 835H (shown in solid outline in FIG. 5 ) the shuttle element 835H closes the inlet conduit 835IN thereby preventing flow of fluid to the auxiliary valve 841 from the fluid inlet 891.
  • the outlet conduit 835OUT is open allowing fluid to flow from the auxiliary valve 841 to the fluid outlet 895.
  • FIG. 6 is also arranged such that rubbing or sliding movement between the piston 910 and float element 911 and rubbing or sliding movement between the float element 911 and coupling rod 912 are substantially prevented. This has the advantage of reducing wear for the reasons discussed above.
  • the controller 150 is arranged to control the inlet valve 133 to open when the piston 110 is at its furthest limit of travel towards the valve disc 131 (top dead centre or TDC position) and to close when the piston is at its further limit of travel away from the valve disc 131.
  • a sensor 110S is provided by means of which the controller 150 may determine the position of the piston 110 as it approaches the valve disc 131. When a face of the piston 110 reaches a prescribed distance from the valve disc 131 the direction of movement of the piston 110 is reversed and the inlet valve 133 is opened by the controller 150.
  • the sensor 110S is embedded in a wall of the cylinder 102 adjacent the position of the valve disc 131.
  • the sensor 110S is provided in or on the valve disc 131.
  • the sensor 110S is provided adjacent the inlet valve 133.
  • the sensor 110S may be integral to the inlet valve 133.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (13)

  1. L'invention concerne un appareil de pompage sec pour fluide gazeux (600) comprenant :
    une entrée de fluides (691) et une sortie de fluides (695) ;
    au moins un corps de pompe (602) disposant d'une paroi interne définissant une chambre de pompage interne (601) de ce dernier ;
    un élément de compression (610) fourni dans la chambre de pompage (601) ;
    une soupape d'admission (633) agencée de façon à pouvoir être activée par un actionneur de soupape d'admission (633D) et pouvant être actionnée de façon sélective de façon à permettre l'aspiration du fluide de l'entrée de fluides (691) à la chambre de pompage (601) lorsqu'au moins une partie de l'élément de compression (610) est déplacée dans une première direction ;
    une soupape de sortie (631) agencée de façon à pouvoir être activée par un actionneur de soupape de sortie (631D) et pouvant être actionnée de façon sélective de façon à permettre l'extraction du fluide de la chambre de pompage (601) à la sortie de fluides (695) lorsque ladite ou lesdites parties de l'élément de compression (610) sont déplacées dans une seconde direction opposée à la première ;
    une commande (150) configurée de façon à émettre un signal de contrôle de l'actionneur de soupape d'admission (633D) ;
    caractérisée en ce que
    l'appareil comprend en outre un mécanisme d'entraînement linéaire (662) pouvant être actionné de façon à entraîner la ou les parties de l'élément de compression (610) selon un mouvement de va-et-vient dans le cadre de la chambre de pompage (601) ; et
    la commande (150) est agencée de façon à émettre un signal à l'attention de l'actionneur de soupape d'admission (633D) provoquant l'ouverture de la soupape d'admission (633) :
    a) peu après ou à un moment sensiblement identique à celui de la fermeture de la soupape de sortie (631) ; et/ou
    b) au moment ou peu après le moment où l'élément de compression (610) atteint sa position PMH pour une course donnée.
  2. Un appareil selon la revendication 1, dans lequel la soupape d'admission (633) et la soupape de sortie (631) disposent toutes deux d'un élément de fermeture (631H, 633H) pouvant être actionné de façon à ouvrir ou à fermer la soupape, permettant ainsi d'autoriser ou de prévenir le passage de fluides dans ces dernières.
  3. Un appareil selon la revendication 2, dans lequel les soupapes d'admission et de sortie (633, 631) se partagent un élément de fermeture commun, l'élément de fermeture pouvant être activé par les actionneurs de soupapes de façon à se déplacer d'une première position dans laquelle la soupape d'admission (633) est ouverte et la soupape de sortie (631) est fermée à une seconde position dans laquelle la soupape d'admission (633) est fermée et la soupape de sortie (631) est ouverte.
  4. Un appareil selon la revendication 2 ou 3, comprenant une soupape auxiliaire (741), la soupape auxiliaire se trouvant dans la voie d'écoulement du fluide entre les soupapes d'admission et de sortie (633, 631) et la chambre de pompage (601) de façon à ce que le fluide s'écoulant dans ou hors de la chambre de pompage (601) s'écoule dans la soupape auxiliaire (741), la soupape auxiliaire pouvant être activée par un actionneur de soupape auxiliaire (741D) de façon à prévenir l'écoulement du fluide dans ou hors de la chambre de pompage (601).
  5. Un appareil selon l'une des revendications 2 à 4 dans lequel l'actionneur de soupape d'admission comprend une première unité d'entraînement (633D) pouvant être actionnée pour ouvrir et fermer la soupape d'admission (633) et l'actionneur de soupape de sortie comprend une seconde unité d'entraînement (631D) pouvant être actionnée pour ouvrir et fermer la soupape de sortie (631), et optionnellement dans lequel l'actionneur de soupape auxiliaire comprend une troisième unité d'entraînement (741D) pouvant être actionnée pour ouvrir et fermer la soupape auxiliaire (741).
  6. Un appareil selon l'une des revendications précédentes dans lequel l'actionneur de soupape (631D, 633D, 741D) et/ou le mécanisme d'entraînement linéaire (662) comprennent un ou plusieurs des éléments suivants :
    un entraînement piézo-électrique ;
    un entraînement électromagnétique ; et
    un moteur électrique.
  7. Un appareil selon l'une des revendications précédentes, dans lequel les soupapes d'admission et de sortie (633, 631) sont munies d'une partie de tête (603) de l'appareil faisant face à l'élément de compression (610).
  8. Un appareil selon l'une des revendications précédentes comprenant un capteur (110S) de détection d'une position de l'élément de compression (610), la commande étant agencée de façon à contrôler les actionneurs de soupape d'admission et de sortie (633D, 631D) en fonction de la position de l'élément de compression (610).
  9. Un appareil selon la revendication 2 ou toute revendication dépendant de cette dernière, dans lequel la commande est agencée de façon à ouvrir la soupape de sortie (631) lorsque la ou les parties de l'élément de compression (610) se déplacent d'une seconde position distale par rapport à la soupape d'admission et la soupape de sortie (633, 631) à une première position proximale par rapport à la soupape d'admission et la soupape de sortie (633, 631), et à fermer la soupape de sortie (631) lorsque la ou les parties de l'élément de compression (610) se trouvent substantiellement dans la première position afin d'augmenter ainsi le volume de fluide s'écoulant par la soupape de sortie (631).
  10. Un appareil selon l'une des revendications précédentes, dans lequel le mécanisme d'entraînement linéaire (662) se trouve en communication fluide avec l'élément de compression (610), et optionnellement dans lequel le mécanisme d'entraînement linéaire (662) est fourni dans un emballage sous vide grâce auquel il est isolé de l'environnement externe à l'appareil.
  11. Un appareil selon la revendication 2 ou toute revendication dépendant de cette dernière, dans lequel l'élément de fermeture (633H) de la soupape d'admission (633) peut être actionné de façon à s'ouvrir dans une direction s'éloignant de la chambre de pompage (601).
  12. Un ensemble de pompage comprenant au moins un premier et un second appareil de pompage pour fluides selon l'une des revendications précédentes, et dans lequel optionnellement le premier et le second appareil de pompage sont couplés en série de façon à ce qu'une sortie de fluides (695) du premier appareil de pompage se trouve en communication fluide avec une entrée de fluides (691) du second appareil de pompage, et dans lequel par ailleurs les éléments de compression respectifs (610) du premier et du second appareil de pompage sont agencés optionnellement de façon à assurer un mouvement de va-et-vient :
    le long d'un axe commun ;
    le long d'axes parallèles respectifs ;
    le long d'axes non parallèles respectifs ;
    le long d'axes substantiellement orthogonaux ; et/ou
    en phase ou en opposition de phase l'un par rapport à l'autre.
  13. Une méthode de pompage sec d'un fluide gazeux comprenant :
    le contrôle d'un actionneur de soupape d'admission (633D) de façon à aspirer un fluide à travers une entrée de fluides (691) dans une chambre de pompage (601) en passant par une soupape d'admission (633) lorsqu'au moins une partie d'un élément de compression (610) placé dans la chambre de pompage (601) se déplace dans une première direction ;
    le contrôle d'un actionneur de soupape de sortie (631D) de façon à expulser un fluide de la chambre de pompage (601) à travers une sortie de fluides (695) en passant par une soupape de sortie (631) lorsque la ou les parties de l'élément de compression (610) se déplacent dans une seconde direction opposée à la première ;
    la méthode étant caractérisée par :
    l'entraînement de la ou des parties de l'élément de compression (610) selon un mouvement de va-et-vient dans le cadre de la chambre de pompage (601) à l'aide d'un mécanisme d'entraînement linéaire (662) ; et
    l'émission d'un signal à l'attention de l'actionneur de soupape d'admission (633D) provoquant l'ouverture de la soupape d'admission (633) :
    a) peu après ou à un moment sensiblement identique à celui de la fermeture de la soupape de sortie (631) ; et/ou
    b) au moment ou peu après le moment où l'élément de compression (610) atteint sa position PMH pour une course donnée.
EP12773702.1A 2011-04-18 2012-04-18 Pompe à fluide et méthode de pompage de fluide Active EP2699800B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161476430P 2011-04-18 2011-04-18
GB201109776A GB2490180B (en) 2011-04-18 2011-06-10 Valve assembly and method of pumping a fluid
PCT/US2012/034070 WO2012145395A2 (fr) 2011-04-18 2012-04-18 Pompe à fluide et méthode de pompage de fluide

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EP2699800A2 EP2699800A2 (fr) 2014-02-26
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EP2699800B1 true EP2699800B1 (fr) 2018-07-18

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NO20120965A1 (no) * 2012-08-28 2014-03-03 Sensorlink As Fremgangsmåte og system for å bestemme posisjonen til et stempel i en sylinder
CN203286843U (zh) * 2012-12-01 2013-11-13 博西华电器（江苏）有限公司 冰箱
EP2883800B1 (fr) * 2013-12-13 2017-08-16 Discma AG Dispositif de piston comprenant une vanne de régulation de l'entrée dudit dispositif
BR102014007259A2 (pt) * 2014-03-26 2015-12-08 Whirlpool Sa compressor alternativo provido de arranjo de válvulas de sucção
DK179314B1 (en) * 2017-02-08 2018-04-30 Steeper Energy Aps Pressurization system for high pressure treatment system
IT201800003497A1 (it) * 2018-03-13 2019-09-13 Nuovo Pignone Tecnologie Srl Compressore alternativo e metodo per regolare la sua portata
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CN109989902B (zh) * 2019-04-24 2021-04-09 江苏博利源机械有限公司 一种伸缩式变容泵
GB2612838A (en) * 2021-11-15 2023-05-17 Hyperspin Ltd Apparatus for pumping hyperpolarised gas and method of handling hyperpolarised gas

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Also Published As

Publication number Publication date
EP2699800A2 (fr) 2014-02-26
US20140134003A1 (en) 2014-05-15
EP2699800A4 (fr) 2015-06-24
GB201109776D0 (en) 2011-07-27
WO2012145395A2 (fr) 2012-10-26
GB2490180B (en) 2013-04-17
GB2490180A (en) 2012-10-24
WO2012145395A3 (fr) 2014-01-30

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