AXIAL FAN, BLOWER, AND REFRIGERATION

• Main Authors: NAKAJIMA, SHOEI, HOSOMI SHOTA, TADOKORO TAKAHIDE, YAMAMOTO KATSUYUKI
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

An axial fan includes: a hub that is rotationally driven and has a rotational shaft formed therein; and a blade formed around the hub and having a front edge portion and a rear edge portion, the blade having a thick portion, the thick portion being a raised portion provided on the blade surface of the blade at the root portion of the blade, the thick portion having: a first thick portion located on the front edge portion side; and a second thick portion located on the trailing edge portion side, an imaginary circle passing through the outermost periphery of the blade, among imaginary circles passing through both the first thick portion and the second thick portion with the rotation axis as the center, is defined as a reference circle. A first intersection point portion is defined as an intersection point portion where the reference circle intersects with an edge portion of the first thick portion, and a second intersection point portion is defined as an intersection point portion where the reference circle in