CONSTRUCTION MACHINE

摘要

A construction machine includes a first hydraulic pump, a second hydraulic pump, and a hydraulic circuit. The first hydraulic pump supplies hydraulic oil to a hydraulic actuator of a first system. The second hydraulic pump supplies the hydraulic oil to a hydraulic actuator of a second system. The hydraulic circuit supplies the hydraulic oil flowing out from at least one of the hydraulic actuators of the first and second systems to the intake side or the discharge side of at least one of the first and second hydraulic pumps. At least one of the first and second hydraulic pumps operates as a hydraulic motor so as to assist the other of the first and second hydraulic pumps that operates as a hydraulic pump.

主权项

1. A construction machine, comprising:
a first hydraulic pump that supplies hydraulic oil to a hydraulic actuator of a first system; a second hydraulic pump that supplies the hydraulic oil to a hydraulic actuator of a second system; and a hydraulic circuit that supplies the hydraulic oil flowing out from at least one of the hydraulic actuator of the first system and the hydraulic actuator of the second system to an intake side or a discharge side of at least one of the first hydraulic pump and the second hydraulic pump, wherein at least one of the first hydraulic pump and the second hydraulic pump operates as a hydraulic motor so as to assist the other of the first hydraulic pump and the second hydraulic pump that operates as a hydraulic pump.