Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CLOSED-CIRCUIT HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE
The present disclosure relates to a closed circuit hydraulic system for a construction machine including a plurality of actuators and a plurality of hydraulic pumps selectively supplying working oil to the plurality of actuators bidirectionally and the closed circuit hydraulic system includes: a charge line selectively connected with a low-pressure side hydraulic line which returns to the hydraulic pump from the actuator among hydraulic lines connecting the hydraulic pumps and the actuators; a charge pump supplying a supplement flow to the charge line; and a variable relief valve selectively changing a normal mode to limit a pressure of the charge line to a predetermined pressure or less and a boost mode to limit the pressure of the charge line to a pressure lower than the pressure of the charge line in the normal mode.
CLOSED-CIRCUIT HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE
The present disclosure relates to a closed circuit hydraulic system for a construction machine including a plurality of actuators and a plurality of hydraulic pumps selectively supplying working oil to the plurality of actuators bidirectionally and the closed circuit hydraulic system includes: a charge line selectively connected with a low-pressure side hydraulic line which returns to the hydraulic pump from the actuator among hydraulic lines connecting the hydraulic pumps and the actuators; a charge pump supplying a supplement flow to the charge line; and a variable relief valve selectively changing a normal mode to limit a pressure of the charge line to a predetermined pressure or less and a boost mode to limit the pressure of the charge line to a pressure lower than the pressure of the charge line in the normal mode.
CLOSED-CIRCUIT HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE
KANG BYUNG IL (Autor:in) / HONG KI HWAN (Autor:in)
17.11.2016
Patent
Elektronische Ressource
Englisch
Closed-circuit hydraulic system for construction machine
| Europäisches Patentamt | 2019
CLOSED CIRCUIT TYPE HYDRAULIC SYSTEM OF A CONSTRUCTION MACHINE
Europäisches Patentamt | 2019
CLOSED CIRCUIT TYPE HYDRAULIC SYSTEM OF A CONSTRUCTION MACHINE
| Europäisches Patentamt | 2016
CLOSED CIRCUIT HYDRAULIC SYSTEM OF CONSTRUCTION MACHINERY
Europäisches Patentamt | 2017
CLOSED CIRCUIT HYDRAULIC SYSTEM OF CONSTRUCTION MACHINERY
| Europäisches Patentamt | 2015