TH51535B - Sirocco fans and air conditioners - Google Patents

Abstract

DC60 to provide a Sirocco fan that can lower the noise factor and the number of revolutions. When the previously predetermined amount of air blowing was acquired and the received air conditioner The preparation is complete with a sirocco fan. In the Sirocco fan When the fan diameter is set to D, the camber height. Most is defined as H. The leaf chord length is defined as L the radius of the leading edge. Where the inner circumference side is defined as R, the blade exit angle is defined as beta 1 and the blade exit angle is defined as beta 2, it follows the following inequality 0.18 less than or equal to H / L. Less than or equal to 0.26, R / L less than or equal Beta 1 is less than or equal to 130 degrees, and 26 degrees less than or equal to beta 2 is less than or equal to 32 degrees.

Claims (1)

Disclaimers (all) that will not appear on the advertisement page: 1. A Sirocco fan that includes numerous forward and coil discs that are rotated in The sheets are coiled and arranged in a cylindrical manner. Where the fan diameter is defined as D, the maximum camber height is defined as H. The blade chord length is defined as L. The radius of the leading edge on the inner circumference of the circular arc is defined as R. The blade entrance angle is defined as B1 and the blade exit angle are set as B2 is then made to be desired as follows 0.18 less than or equal to H / L less than or equal, 0.26, R / L less than or equal, 0.11,100 degrees less than or equal, B1 is less than or equal to 130 degrees, and 26 degrees less than or equal B2 less. Or equal to 32 degrees