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A platform for research: civil engineering, architecture and urbanism
CONTROL DEVICE FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
A negative control type hydraulic pump control device mounted on a construction machine such as an excavator is provided. The hydraulic pump control device includes an accumulator storing a control signal pressure, a solenoid valve supplying any one of the signal pressure from the accumulator and a negative signal pressure to the regulator when a solenoid valve is shifted in accordance with applying of the control signal, and an operation lever locking unit turning ON/OFF the control signal applied to the solenoid valve in accordance with a driver's operation, wherein an inclination angle of a swash plate of a hydraulic pump is maintained with a minimum capacity by compensating for the negative signal pressure caused by hydraulic fluid supplied from the accumulator through shifting of the solenoid valve when an engine starts.
CONTROL DEVICE FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
A negative control type hydraulic pump control device mounted on a construction machine such as an excavator is provided. The hydraulic pump control device includes an accumulator storing a control signal pressure, a solenoid valve supplying any one of the signal pressure from the accumulator and a negative signal pressure to the regulator when a solenoid valve is shifted in accordance with applying of the control signal, and an operation lever locking unit turning ON/OFF the control signal applied to the solenoid valve in accordance with a driver's operation, wherein an inclination angle of a swash plate of a hydraulic pump is maintained with a minimum capacity by compensating for the negative signal pressure caused by hydraulic fluid supplied from the accumulator through shifting of the solenoid valve when an engine starts.
CONTROL DEVICE FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY
STEUERUNGSEINHEIT FÜR EINE HYDRAULIKPUMPE EINER BAUMASCHINE
DISPOSITIF DE COMMANDE POUR UNE POMPE HYDRAULIQUE DE MACHINE DE CONSTRUCTION
KIM DONG-SOO (author) / LEE KYUNG-SUB (author)
2016-08-31
Patent
Electronic Resource
English
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