EXHAUST VALVE APPARATUS

摘要

PURPOSE: An exhaust valve device is provided to facilitate gap management because the compression point of an elastic member is not deviated from the center of a base. CONSTITUTION: An exhaust valve device comprises a base(1), a cover(2), and an elastic member(3). The base has a flange(11) which is fixed to the perimeter of a through hole, a protrusion(12) which is protruded from the flange in the acting direction of exhaust pressure and has a discharge hole(121), and a supporting rod(13) which is extended through a cover from the end of the protrusion in the acting direction of exhaust pressure. The cover covers the base. The elastic member is connected between the cover and a support rod and provides the cover with an elastic restoring force toward the protrusion.