АВТОМАТИЧЕСКИ ОТКРЫВАЮЩИЙСЯ ЭКСГАУСТЕР

摘要

An automatic opening air extractor comprising a support casing (1), finished off on the suction side with a perimetral rim (2) inside which an electromotor (3), a fan (4) and regulation and control means are housed. In correspondence with the intake mouth, a cover (6) is provided which is connected to an axial movement device able to move said cover between closed and opened positions. This device includes an actuation element, a plunger (9) which can move through a casing (10) acting on the cover through supports (11).