Hydraulic system, particularly for use in closed hydraulic circuits, has feed pump for feeding pressure medium in low pressure side, where flow rate of feed pump is variable irrespective of speed of main pump in response to system parameter

摘要

#CMT# #/CMT# The hydraulic system has a main pump with two pressure connections, which are adjustable in displacement volumes and conveying direction, where the pressure connections are mutually provided as a high-pressure connection and a low pressure connection. A feed pump is provided for feeding pressure medium in a low pressure side, where the flow rate of the feed pump is variable irrespective of the speed of the main pump in response to a system parameter. The feed pump is adjustable in displacement volume by adjusting the amount of pressure medium conveyed per revolution. #CMT#USE : #/CMT# Hydraulic system, particularly for use in closed hydraulic circuits. #CMT#ADVANTAGE : #/CMT# The feed pump is provided for feeding pressure medium in a low pressure side, where the flow rate of the feed pump is variable irrespective of the speed of the main pump in response to a system parameter, and hence ensures enhancing the feeding supply pressure in an energy-saving manner.