| 主权项 |
1. An energy recovery control circuit provided with an energy recovery system for recovering energy that a work equipment has, the energy recovery control circuit comprising:
a recovery control valve block in which a plurality of valves that constitute the energy recovery system are incorporated, wherein: the recovery control valve block includes a main spool, the main spool being associated with a plurality of control characteristics concerning recovery of energy, the plurality of control characteristics being adjustable based on at least one of a direction and stroke of the main spool, the plurality of control characteristics including an inflow rate control characteristic, an unload control characteristic, a switching control characteristic and a release rate control characteristic. |
