Radial hydraulic motor
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United States of America Patent
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Jul 14, 2015
Grant Date -
Mar 14, 2013
app pub date -
Mar 23, 2011
filing date -
Mar 23, 2010
priority date (Note) -
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Abstract
A radial cylinder hydraulic motor includes oscillating cylinders, in proximity to the outer skirt to the crown or star of cylinder-piston groups; the pistons of the said groups slide on a crankshaft or eccentric shaft, or on interposed organs concentric to it, and create alternate motion in the oscillating cylinders. A respective surface of oscillation for each cylinder of the said groups, in proximity to the outer skirt, is constituted by a portion of cylindrical surface with axial direction parallel to the axis of rotation of the crankshaft or eccentric shaft and positioned in the part of skirt including the diametral plane of lying of the said crown or star of radial cylinders. A contact between the cylindrical support surface of a bottom plate of each cylinder on the portion of cylindrical surface of oscillation happens because of the thrust created by the radial thrust devices which act on at least one side of the said cylinders and the sides of cylinders are placed against plane surfaces of the sliding walls that are parallel to the diametral plane of said crown or star of cylinder-piston groups.
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