Patent ID: 8801407

Claim:
A hydraulic power device for effecting operation of at least one load, the hydraulic power device comprising: a motor having a predetermined motor speed rating and motor power rating; at least one pump operably coupled to the motor, the at least one pump being configured to provide, to the at least one load, a first hydraulic fluid flow at the predetermined motor speed rating and a second hydraulic fluid flow at the predetermined motor speed rating, the first hydraulic fluid low being different than the second hydraulic fluid flow; and a variable frequency drive connected to the motor, the variable frequency drive being configured to effect operation of the motor at a speed above the predetermined motor speed rating such that the at least one pump operates to provide an excess hydraulic fluid flow to the at least one load during operation of the motor substantially above the predetermined motor speed rating where the excess fluid flow is greater than at least one of the first hydraulic fluid flow and the second hydraulic fluid flow.