Air later

摘要

PROBLEM TO BE SOLVED: To provide an aerator which disperses bubbles evenly in drainage to increase contact area with the drainage. ;SOLUTION: In a upper part of the lower part cylinder 1b of an aerator main body 1 is arranged a revolving flow generation part 3 which is constituted by bond-fixing respective elliptic arc sides to the inner surface of the lower part cylinder 1b while two semi-elliptic plates 3a, 3b being cross-contacted in an X-shape by respective diameter sides. The lower part of a cylinder 4a is exterior-fixed to the upper part of the upper part cylinder 1a of the aerator main body 1, the circumferential side part of the cylinder 4a is expanded outward from the middle, notches are formed at regular intervals in the circumferential side part, crushing pieces 4b, 4b... are formed between the notches, the pieces 4b, 4b are folded inside at their base parts to direct the tips to the axis side of the cylinder 4a, and a bubble crushing part 4 divided into three groups of different height is constituted.;COPYRIGHT: (C)1998,JPO