FLOW RATE REGULATING VALVE OF HYDRAULIC PUMP

摘要

A piston (102) is so disposed as to face a first pilot chamber (101A) and a second pilot chamber (101B) to change an initial load of a spring (9). Throttle valves (106A and 106B) are installed in a communication route for draining the second pilot chamber (101B) and in a communication route for allowing the second pilot chamber (101B) to communicate with the first pilot chamber (101A), respectively.