Sonic heads and assemblies and uses thereof

Details Sonic heads and assemblies and uses thereof Sonic heads and assemblies and uses thereof

E - Fixed Constructions

21

B

E21B 7/24 (2006.01)

Patent

CA 2528480

A sonic head assembly suitable for generating an output, said assembly having a frame, a sonic head carrying, carried by, substantially locating or substantially being located by the frame, wherein the sonic head has a spaced pair of pistons each located within a head cylinder, and wherein each headed cylinder has a valving arrangement whereby a variable volume can be deined by the piston relative to the headed cylinder as a consequence of fluid supply into and/or fluid release from the variable volume chamber reliant on the valving arrangement, and wherein the valving arrangement of on headed cylinder is out of phase with the other such that as one chamber increases in volume as a consequence of fluid supply thereto, the other correspondingly decreases, and vice versa.

Cette invention concerne un ensemble tête sonique conçu pour générer un signal de sortie. Cet ensemble comprend un châssis, une tête sonique portante et portée, assurant sensiblement le positionnement du châssis ou dont le positionnement est sensiblement assurée par ledit châssis. La tête sonique comporte une paire de pistons espacée l'un de l'autre et situés chacun dans un cylindre avec culasse. Chaque cylindre est équipé d'un système de soupapes. Un volume variable peut être défini par le piston par rapport au cylindre en fonction de l'alimentation en fluide de la chambre à volume variable et/ou de l'évacuation du fluide hors de cette chambre selon la disposition des soupapes. La disposition des soupapes de l'un des cylindres supérieurs est déphasée par rapport à la disposition des soupapes de l'autre cylindre de sorte que lorsque le volume d'une chambre augmente par suite de l'alimentation en liquide, celui de l'autre chambre diminue, et vice versa.

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