Integrated hydraulic power unit - includes coaxial electric motor and pump with outer cylindrical casing housing fluid reservoir

摘要

The hydraulic unit includes an electric motor in the end of which there is a box (4) supporting a bearing (5). This bearing supports the output shaft (2) of the motor which is coaxial with the drive of the hydraulic pump. The shaft extends as far as the bias plate (6) of the pump with the casing (7) around this formed as one piece with the box (4). The bias plate (6) operates the pistons (8). The casing has an opening for the admission of hydraulic liquid into the pump, the output being provided along a tube (10) parallel to the shaft (2). Surrounding the tube there is a tube (13) forming a sealed enclosure acting as the hydraulic fluid reservoir. This is provided with a top-up stopper (22) and has a seal (20) around the pump outlet pipe.