REGENERATION CIRCUIT FOR HYDRAULIC MOTOR, CONSTRUCTION MACHINE INCLUDING REGENERATION CIRCUIT, AND METHOD OF CONTROLLING REGENERATION CIRCUIT

摘要

A regeneration circuit includes an oil collection passage that collects return oil from a hydraulic motor to which pressure oil discharged from a hydraulic pump is supplied, a regeneration system that recovers energy from the collected return oil, and an oil resupply passage that resupplies pressure oil from the regeneration system to the hydraulic motor. The regeneration system includes a pressure oil inflow part that converts pressure energy of the collected return oil into mechanical energy, a pressure oil outflow part that outputs low pressure oil with a pressure lower than a pressure of the collected return oil to the oil resupply passage when the pressure energy of the collected return oil is converted into the mechanical energy, and a regeneration part that accumulates the mechanical energy.

主权项

1. A regeneration circuit, comprising:
an oil collection passage that collects return oil from a hydraulic motor to which pressure oil discharged from a hydraulic pump is supplied; a regeneration system that recovers energy from the collected return oil; and an oil resupply passage that resupplies pressure oil from the regeneration system to the hydraulic motor, wherein the regeneration system includes
a pressure oil inflow part that converts pressure energy of the collected return oil into mechanical energy,a pressure oil outflow part that outputs low pressure oil with a pressure lower than a pressure of the collected return oil to the oil resupply passage when the pressure energy of the collected return oil is converted into the mechanical energy, anda regeneration part that accumulates the mechanical energy.