Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
The present invention relates to a hydraulic pressure control device for construction machinery, comprising: a pilot pump; a swing motor for rotary-actuating an upper turning body; a brake control valve for controlling the direction of a hydraulic pressure of the pilot pump to operate a brake; a controller for receiving a command signal for driving the swing motor and applying the command signal to the brake control valve; a relief valve interposed between the brake control valve and the pilot pump; and a drain control valve, disposed in parallel with the brake control valve, for performing opening and closing operations so that the hydraulic pressure of the pilot pump can selectively return to a hydraulic tank in accordance with the state of the brake control valve, the drain control valve being opened for the hydraulic pressure to be discharged to the hydraulic tank without passing through the relief valve if the brake control valve is switched to brake the swing motor.
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
The present invention relates to a hydraulic pressure control device for construction machinery, comprising: a pilot pump; a swing motor for rotary-actuating an upper turning body; a brake control valve for controlling the direction of a hydraulic pressure of the pilot pump to operate a brake; a controller for receiving a command signal for driving the swing motor and applying the command signal to the brake control valve; a relief valve interposed between the brake control valve and the pilot pump; and a drain control valve, disposed in parallel with the brake control valve, for performing opening and closing operations so that the hydraulic pressure of the pilot pump can selectively return to a hydraulic tank in accordance with the state of the brake control valve, the drain control valve being opened for the hydraulic pressure to be discharged to the hydraulic tank without passing through the relief valve if the brake control valve is switched to brake the swing motor.
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
HYDRAULISCHE DRUCKSTEUERUNGSVORRICHTUNG FÜR BAUMASCHINEN
DISPOSITIF DE COMMANDE DE LA PRESSION HYDRAULIQUE POUR ENGINS DE CHANTIER
JUNG TAE-RANG (Autor:in) / KIM MI-OK (Autor:in)
12.04.2017
Patent
Elektronische Ressource
Englisch
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
Europäisches Patentamt | 2017
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
| Europäisches Patentamt | 2017
HYDRAULIC PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
| Europäisches Patentamt | 2016
Hydraulic pressure control device for construction machinery
| Europäisches Patentamt | 2016
Hydraulic pressure control device for construction machinery
| Europäisches Patentamt | 2017