Patent 10100847 was granted and assigned to Sumitomo Heavy Industries on October, 2018 by the United States Patent and Trademark Office.
A shovel includes a main pump, a hydraulic actuator, and an accumulator part. The hydraulic actuator is configured to be driven with hydraulic oil discharged by the main pump. The accumulator part is configured to store the hydraulic oil discharged from the hydraulic actuator and discharge the hydraulic oil to the intake side of the main pump.