Patent ID: 6343484
Filing Date: 2002-02-05
Classification: F04D,F24F

Abstract:
An air conditioner, comprising:a condenser mounted at a rear portion of the air condition to discharge heat from coolant for the air-conditioner, said condenser having an interior face; a radial outdoor fan installed inside the air conditioner pointing toward the interior face of the condenser for infusing outside air into the air conditioner and discharging air through the condenser, said outdoor fan comprising: an axle connected to a motor, a hub mounted on the axle, having an external surface and an axial length; a plurality of vanes radially connected to and distributed evenly around said external surface of said hub to define a circle swept by said vanes with a diameter D, a gap between said vanes and said interior face of said condenser being a first distance; an extended part formed on said hub, said extended part extending axially from said external surface of said hub toward said interior surface of said condenser, having an end facing said interior face and an axial length that is greater than approximately fifty percent of said axial length of said hub, a gap between said end and said interior face of said condenser being a second distance; and said second distance being less than or equal to 1.3 times said first distance.