Patent ID: 7568885
Filing Date: 2009-08-04
Classification: F04D,F24F

Abstract:
1. A method of operating an conditioner condenser or heat pump blades, comprising the steps of: providing asymmetrical twisted blades about a rotatable hub in a housing; providing a first blade at 79.0117 degrees from a center-line about the hub, each blade having a root end and a tip end and a continuous twist therebetween, each of the twisted blades having a root end angle of twist that is greater than a tip end angle of twist; providing an approximately 7 degree divergent conical diffuser in the housing above the blades; rotating the blades at up to approximately 840 rpm; requiring power from a motor of up to approximately 110 Watts while running the blades and generating the axial airflow; and generating an upward axial airflow from the rotating blades up to approximately 2200 cfm (cubic feet per minute) which diverges outward from the conical diffuser.