Compact, low-cost construction equipment capable of effectively recovering
energy from a plurality of hydraulic actuators is provided. To this end,
the construction equipment comprises: a hydraulic recovery circuit for
recovering return oil from the hydraulic actuators, the circuit being
equipped with a pump motor rotatably driven by the recovered return oil;
oil guide passages each of which is for guiding return oil from the
meter-out side of its corresponding hydraulic actuator to the hydraulic
recovery circuit; switches for switching the respective oil guide passages
between their opened and closed states; pressure sensors for detecting the
back pressure of each hydraulic pressure actuator; and a dynamo-electric
generator for generating electric power from the rotary force of the pump
motor.
