Patent ID: 7101148
Filing Date: 2006-09-05
Classification: F04D

Abstract:
1. A sealing structure for an inflow opening of a blower housing, the blower housing being associated with a centrifugal blower wheel, the centrifugal blower wheel and an inner side of the blower housing defining an air gap therebetween, the sealing structure comprising: a sealing ring; and a buffer part connected to said sealing ring, said buffer part shaped to surround the inflow opening of the blower housing in a sealing manner; and said sealing ring and said buffer part adapted to be disposed in the inflow opening to substantially fill the air gap between the centrifugal blower wheel and the inner side of the blower housing and to protrude from the blower housing; said sealing ring has a given elasticity; and said buffer part has a clearance setting an elasticity thereof to be different from said given elasticity.