| 摘要 |
PURPOSE:To smoothen flow of air at a disc peripheral part in a cross flow fan, increase ventilation quantity, and reduce noise. CONSTITUTION:A fan element A0 is composed of a disc 1, and plural blades 2 connected at one end to the disc 1 close to one side surface peripheral part of it to be disposed like a cylinder. Plural fan elements A0 are connected in order axially to form a cross flow fan having plural ventilation ranges separated by the disc 1 in the axial direction. The outer circumferential side of one side surface of each disc 1 is formed gradually thinner toward an outer circumferential edge of the disc 1. |
