FLOW PATH SWITCH CONTROL DEVICE CAPABLE OF CONTROLLING AND SENSING PRESSURE VARIATION IN FLUID

摘要

PURPOSE: A flow path switch control device is provided to prevent noise and vibration generated in the operation of a solenoid valve under high pressure difference. CONSTITUTION: A flow path switch control device comprises a valve apparatus(103) and a pressure balancing control circuit(104). The valve apparatus is arranged between a fluid inlet(101) and a fluid outlet(102). The pressure balancing control circuit is provided inside a flow path switch control device(100). An adjustment apparatus(105) is formed in the pressure balancing control circuit to reduce pressure variation in fluid passing through the pressure balancing control circuit when the flow path switch control device is opened or closed. The adjustment apparatus changes a flow area of the fluid within a flow path in order to reduce pressure variation.