Hydraulic unit with cylinder in which piston connecting rod moves has inner tube arranged inside piston rod which is open to inner face surface of rod and is connected with base of cylinder

摘要

Outside the piston connecting rod (14) is formed a first hydraulic chamber and inside the rod is a second such chamber independent from the first. The first hydraulic chamber via a first connection (18) and the second hydraulic chamber via a second connection (20) can be activated with hydraulic fluid or unloaded from it. The first and/or second connections are connected to a check valve.