Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2009
0Patent Application Number
113660290
Date Filed
March 2, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
There is provided a propeller fan in which a clearance between a rotary vane wheel and a shroud is constant three-dimensionally to improve air blowing efficiency and suppress noise. Furthermore, there is provided a propeller fan in which a span length of the rotary vane wheel with respect to the shroud is varied between a front edge portion and a rear edge portion to improve air blowing efficiency and suppress noise. Still further, there is provided a propeller fan characterized in that chamfering is applied only to a negative pressure face of a circumferential outer edge portion of a vane.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.