| 摘要 |
<p>A hydraulic servo-control (1) of a servo-controlled gearbox comprising a hydraulic accumulator (3) containing control fluid under pressure, which is in turn provided with an outer housing (7); a piston (12) arranged inside the outer housing (7), provided so as to be axially sliding and mobile inside the outer housing (7) itself and adapted to define, inside the outer housing (7), a first variable-volume chamber (C1) for a gaseous material and a second variable-volume chamber (C2) for the control fluid under pressure; and limit stop means (21) arranged at an open end of the outer housing (7), which act as a striker element for the piston (12) and comprise a circlip (22) with a substantially annular shape and a perforated plate (24) which, in use, is interposed between the circlip (22) and the piston (12).</p> |
