Patent ID: 7677865
Filing Date: 2010-03-16
Classification: F04D

Abstract:
1. An air purifier, comprising: a housing; a filter unit inside the housing; a blowing fan inside the housing; and a bell-mouth placed toward an intake side of the blowing fan, wherein the bell-mouth includes an inlet port formed at a center of the bell-mouth, a flow guide extending from a periphery of the inlet port toward the blowing fan along a first peripheral section of the inlet port, and a flat section positioned along a second peripheral section of the inlet port to discontinue the flow guide to increase a distance between the blowing fan and the bell-mouth, wherein the first peripheral section is longer than the second peripheral section, wherein the flat section is formed at a section of the flow guide where air flows through the inlet port of the bell-mouth, and wherein the second peripheral section is formed in the range of about 240°˜330° with respect to a starting point of a scroll inside the bell-mouth.