RESTRICTOR AND AIR CONDITIONER

摘要

PROBLEM TO BE SOLVED: To reduce rubbing noise of refrigerant without causing any variation in the flow rate of refrigerant due to clogging of a restriction passage with a mixing matter even in case of long term use. SOLUTION: In the inner passage of a valve element 17 opening toward a valve chamber 14 on one side and toward a valve port 15 on the other side and interconnecting the valve chamber 14 and a second inlet/outlet port 13 under closed state, a filter element (a porous member 19 having a large ullage) for capturing a mixing matter, an orifice member 22, and a porous member 23 having a small ullage for reducing the flowing noise of fluid are arranged sequentially.