Title:
HYDRAULIC MACHINE
Document Type and Number:
Japanese Patent JP2023095796
Kind Code:
A
Abstract:
To provide a hydraulic machine capable of selectively saving fuel consumption of a power source or boosting maximum output power of a pump by utilizing hydraulic energy discharged from an actuator.SOLUTION: A hydraulic machine includes a pump, an actuator, a recovery portion recovering hydraulic energy by receiving a pressure oil discharged from the actuator, and a control portion. The recovery portion includes an accumulator receiving the pressure oil discharged from the actuator and storing the hydraulic energy, and an assist unit assisting a power source by utilizing the hydraulic energy stored in the accumulator. The control portion controls the output power of the pump to be P1max or less when an economy mode is selected or the assist unit does not assist the power source, and controls the output power of the pump to be P2max (>P1max) or less when a boosting mode is selected and the assist unit assists the power source.SELECTED DRAWING: Figure 5
Inventors:
YUN SEONGGEUN
RHEE BYOUNG-HO
AHN HOENGHWAN
JOO SANGKYU
LEE SEUNG HYUN
JUNG TAERANG
RHEE BYOUNG-HO
AHN HOENGHWAN
JOO SANGKYU
LEE SEUNG HYUN
JUNG TAERANG
Application Number:
JP2022194725A
Publication Date:
July 06, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
VOLVO CONSTR EQUIP AB
International Classes:
F15B21/14
Attorney, Agent or Firm:
Shoichi Okuyama
Mitsuji Sekiya
Miho Amiya
Kunitoshi Takuma
Mitsuji Sekiya
Miho Amiya
Kunitoshi Takuma