HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINERY

摘要

PROBLEM TO BE SOLVED: To supply a specified flow to an optional actuator driven by a variable displacement hydraulic pump irrespective of the fluctuation of a load pressure on the hydraulic pump.

SOLUTION: A pressure control means is installed in a pipeline for leading the delivery pressure of the variable displacement hydraulic pump driving a standard actuator and the optional actuator to the displacement control means thereof.

COPYRIGHT: (C)2004,JPO