Surge tank of cooling circuit installed in motor vehicle, has check valve that is operated based on temperature or pressure of surge tank so as to interrupt flow of liquid from liquid supply line

摘要

The surge tank has a fluid supply line (14) through fluid stored in tank is supplied to outside. A check valve (42) is adjustable between a locking position during which fluid stream is interrupted, and a passage position during which liquid stream is transmitted. The check valve is operated based on temperature or pressure of surge tank so as to interrupt a flow of liquid from liquid supply line. A lid (20) is provided in upper section (18) of tank.