Axial actuator

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 31/163 (2006.01)

Patent

CA 2440481

An axial actuator includes an embodiment made of two integrated concentric cylindrical enclosures (1, 3) having differential height. Farthest away from the valve, a piston disk (4) divides the space (A and B) between the two enclosures. A cavity (18) or series of cylindrical cavities (18a) encircle the inner enclosure to acccomodate compression springs (17) and arms of rack gear (4B), projected toward the valve from the rim of said piston disk (4), which engage compounded pinions (G1, G2, G3, G4) where the opposite ends of the compounds pinions are engaged to a main bevel gear (2) nearest to the valve. When the piston (4) is actuated by actuating means, the hub (23) of the bevel gear (2) actuates the shaft (A) of the quarter turn valve.

Une réalisation d'actionneur axial comprend deux enceintes cylindriques, concentriques, intégrées (1, 3) d'une hauteur différentielle. Très éloigné de la valve, un disque (4) de piston divise l'espace (A et B) entre les deux enceintes. Une cavité (18) ou une série de cavités cylindriques (18a) encerclent l'enceinte interne de façon à loger des ressorts de compression (17), et des bras d'engrenage à crémaillère (4B), faisant saillie vers la valve depuis le rebord du disque (4) du piston, viennent en contact avec des pignons composés (G1, G2, G3, G4). Les extrémités opposées des pignons composés viennent en contact avec la roue conique principale (2) la plus proche de la valve. Lorsque le piston (4) est actionné par un actionneur, le moyeu (23) de la roue conique (2) actionne l'arbre (A) de la valve quart de tour.

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