B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 7/36 (2010.01) B60S 5/00 (2006.01) B60T 7/20 (2006.01) B62D 5/06 (2006.01) F01P 11/02 (2006.01) F15B 21/04 (2006.01) F16K 11/02 (2006.01) F16K 11/065 (2006.01) F16K 15/02 (2006.01) F25B 41/00 (2006.01) F25B 45/00 (2006.01)
Patent
CA 2220050
A power steering fluid system (10) having fluid travelling through a fluid path (12) having first (24) and second (26) directions. The system includes a fluid pump (16) positioned to pressurize fluid in the fluid path, a gear box (18) positioned to receive pressurized fluid in the fluid path, a hydraulic boost (20), and a valve assembly (22) for injecting fluid into the fluid path in substantially only the first direction. The valve assembly includes a housing (32) having a fill port (56), a first orifice (40), and a second orifice (42). The valve assembly further includes a valve member (52) positioned within the housing and movable relative to the housing from a closed position, where the fill port is blocked from communication with the first and second orifices and where the first orifice is in communication with the second orifice, to an open position, where the fill port is in communication with the first orifice and where the second orifice is substantially blocked from communication the the first orifice.
La présente invention concerne un système de direction assistée hydraulique (10) où le fluide circule dans un circuit hydraulique (12) caractérisé par un premier sens (24) et un second sens (26). Le système est constitué d'une pompe hydraulique (16) conçue pour mettre sous pression le fluide du circuit hydraulique, d'une boîte de transmission (18) configurée pour recevoir le fluide sous pression du circuit hydraulique, d'un surpresseur hydraulique (20), et d'un ensemble vanne (22) servant à injecter dans le circuit hydraulique le fluide sensiblement uniquement dans le premier sens. L'ensemble vanne comporte un carter (32) présentant un point de remplissage (56), un premier orifice (40), et un second orifice (42). L'ensemble vanne comporte également un organe de vanne (52) disposé dans le carter, et mobile par rapport au carter entre, d'une part une position fermée selon laquelle le point de remplissage ne communique ni avec le premier orifice ni avec le second orifice, le premier orifice communiquant avec le second orifice, et d'autre part une position ouverte selon laquelle le point de remplissage communique avec le premier orifice, le second orifice ne communiquant sensiblement pas avec le premier orifice.
Macrae & Co.
Ssi Technologies Inc.
LandOfFree
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