Method for compressing gaseous fuel for fuelling vehicle and...

F - Mech Eng,Light,Heat,Weapons – 17 – C

Patent

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Details

F17C 5/06 (2006.01) F04B 9/125 (2006.01) F04B 35/00 (2006.01) F17C 13/02 (2006.01)

Patent

CA 2699270

This present invention relates to a preparation of gaseous fuel (natural gas for example) for its further transfer under pressure to fuel tank of a vehicle 22. This object is achieved by a method for compressing gas by alternate transfer of gas into two vertically arranged compressing vessels 1 and 2, its compression and forcing into high-pressure vessels by filling the compressing vessels 1 and 2 with working fluid 30 under pressure by means of a hydraulic drive 5. A novelty of this method lies in that, each cycle of gas 29 compressing and its forcing out of the compressing vessels 1 and 2 is performed until these vessels are fully filled with the working fluid 30 contained in the compressing vessels 1 and 2 and alternately forced out of one compressing vessel into the other in response to a signal sent by fluid-level sensor 4.

La présente invention concerne une préparation de carburant gazeux (gaz naturel, par exemple) pour son transfert sous pression jusqu'à un réservoir de carburant d'un véhicule (22). Cet objet est réalisé par un procédé de compression de gaz par transfert alterné de gaz dans deux récipients de compression agencés verticalement (1 et 2), sa compression et son entrée forcée dans des récipients à haute pression en remplissant les récipients de compression (1 et 2) avec un fluide de travail (30) sous pression au moyen d'un entraînement hydraulique (5). Une nouveauté de ce procédé est que chaque cycle de compression de gaz (29) et sa sortie forcée hors des récipients de compression (1 et 2) est réalisé jusqu'à ce que ces récipients soient entièrement remplis avec le fluide de travail (30) contenu dans les récipients de compression (1 et 2) et en alternance sorti de force d'un récipient de compression dans l'autre en réponse à un signal envoyé par un capteur de niveau de fluide (4).

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