F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
F04F 7/02 (2006.01) F01L 23/00 (2006.01) F16B 21/08 (2006.01)
Patent
CA 2173345
A reciprocating hydraulic ram pump drive unit (1) having a cylindrical body with a piston (7) sliding within the cylindrical body and forming two chambers (6, 17) each having respective inlet and outlet openings. A slide rod (9) passes through the piston (7) and has located at or adjacent its ends respective valves for choosing the respective outlet openings of the chambers (6. 17), whereby when one of the respective outlet openings is in the fully closed position, the other of the respective outlet openings is in the fully open position, and vice versa. Water flowing through one of the chambers (6, 17) assists to move the respective valve to the fully closed position and thereby converts the kinetic energy of the fiowing water into a pressure wave in that chamber, which forces the piston (7) away from the respective closed valve, thereby to move the drive rod (14) with it. After the pressure wave is dissipated, the water flowing in the other of the chambers (6, 17) due to the fully opened valve, urges this valve to the fully closed position, converting the kinetic energy of the flowing water in the other of the chambers (6, 17) into a pressure wave in the other of the chambers (6, 17) and thereby to move the piston (7) and the drive rod (14) in the opposite direction. Also disclosed is a bush assembly comprising a female (32) and a male (31) component each having a bore therethrough and a drive rod (14) of such dimension to pass through the bore of the male component (31) in the asssembled condition of the bush.
Entraînement hydraulique à pompe à pression dynamique (1) comportant un corps cylindrique muni d'un piston (7) coulissant dans le corps cylindrique et formant deux chambres (6, 17) présentant l'une et l'autre un orifice d'admission et un orifice d'échappement. Une bielle coulissante (9) traverse le piston (7) et présente au niveau ou à proximité de son extrémité des soupapes sélectionnant l'orifice d'échappement respectif de l'une des chambres (6, 17), de sorte que, lorsque l'un desdits orifices est en position de pleine fermeture, l'autre soit en position de pleine ouverture, et vice versa. L'eau passant par l'une des chambres (6, 17) contribue à placer la soupape correspondante en position de pleine ouverture, convertissant ainsi l'énergie cinétique du courant d'eau en une onde de pression intérieure à la chambre, qui force le piston (7) à s'éloigner de la soupape fermée lui correspondant, en entraînant la bielle (14) dans son mouvement. Après dissipation de l'onde de pression, l'eau circulant dans l'autre chambre (6, 17) via la soupape pleinement ouverte place ladite soupape en position de pleine fermeture, convertissant ainsi l'énergie cinétique du courant d'eau en une onde de pression intérieure à l'autre chambre (6, 17), qui pousse le piston (7) et la bielle (14) dans la direction opposée. Est également présenté un ensemble manchon comprenant un élément femelle (32) et un élément mâle (31) présentant chacun un alésage traversant et une bielle motrice (14) dont les dimensions lui permettent de passer dans l'alésage de l'élément mâle (31), lorsque le manchon est assemblé.
Revel Alexander
Zimmer-Vorhaus Klaus
LandOfFree
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