Title:
PRESSURIZED OIL SUPPLY/DISCHARGE SYSTEM
Document Type and Number:
Japanese Patent JP2022050171
Kind Code:
A
Abstract:
To detect an abnormal state of a pressurized oil supply/discharge system that has not been detected conventionally.SOLUTION: A pump (1) driven by supplying compressed air supplies pressurized oil to a cylinder (10) via a flow passage. A three-way valve (2) provided in a middle part of the flow passage enables switching between a state where the pressurized oil is supplied from the pump (1) to the cylinder (10) and a state where the pressurized oil is discharged from the cylinder (10) to the outside. When pressure of the pressurized oil in the flow passage exceeds predetermined pressure, a pressure compensation valve (3) discharges the pressurized oil to the outside so that the pressure of the pressurized oil in the flow passage becomes below the predetermined pressure. A flow rate of the compressed air supplied to the pump (1) is detected by an air flow rate detection sensor (5). The pressure of the pressurized oil in the flow passage is detected by an oil pressure detection sensor (6).SELECTED DRAWING: Figure 1
Inventors:
ISHIKAWA MASAHIRO
Application Number:
JP2020156624A
Publication Date:
March 30, 2022
Filing Date:
September 17, 2020
Export Citation:
Assignee:
KOSMEK LTD
International Classes:
F04B51/00; F15B20/00