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FLOW CONTROL SYSTEM FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
A flow control system of a hydraulic pump for a construction machine is provided, which can variably control a discharge flow rate of the hydraulic pump in accordance with load pressure generated by a hydraulic actuator such as a boom cylinder. According to the flow control system of a hydraulic pump, the discharge pressure of the hydraulic pump and the operation rate of the operation lever for the hydraulic actuators is detected, and standard load pressures of the respective hydraulic actuators are set. If the discharge pressure of the hydraulic pump is higher than the preset standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is proportionally reduced for the same operation rate in accordance with degrees of loads generated by the hydraulic actuators, while if the discharge pressure of the hydraulic pump is lower than the standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is controlled in proportion to the operation rate.
FLOW CONTROL SYSTEM FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
A flow control system of a hydraulic pump for a construction machine is provided, which can variably control a discharge flow rate of the hydraulic pump in accordance with load pressure generated by a hydraulic actuator such as a boom cylinder. According to the flow control system of a hydraulic pump, the discharge pressure of the hydraulic pump and the operation rate of the operation lever for the hydraulic actuators is detected, and standard load pressures of the respective hydraulic actuators are set. If the discharge pressure of the hydraulic pump is higher than the preset standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is proportionally reduced for the same operation rate in accordance with degrees of loads generated by the hydraulic actuators, while if the discharge pressure of the hydraulic pump is lower than the standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is controlled in proportion to the operation rate.
FLOW CONTROL SYSTEM FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
STRÖMUNGSSTEUERUNGSSYSTEM FÜR EINE HYDRAULIKPUMPE EINER BAUMASCHINE
SYSTÈME DE COMMANDE D'ÉCOULEMENT POUR UNE POMPE HYDRAULIQUE DE MACHINE DE CONSTRUCTION
JOUNG HEA-GYOON (author) / LEE SANG-HEE (author) / SHIN HUNG-JU (author)
2024-02-21
Patent
Electronic Resource
English
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