Blower

Details Blower Blower

F - Mech Eng,Light,Heat,Weapons

04

D

230/24

F04D 29/44 (2006.01) F04D 29/54 (2006.01)

Patent

CA 1316511

ABSTRACT The invention relates to an improved blower construction for more efficient cooling of electrical components in appliances such as microwave ovens. The blower has a propeller fan having blades rotatable about an axis and generating an air current having a first portion having a component blown generally parallel to the axis and a second portion having a component blown generally radially outward of the axis into the peripheral area about the blades. A partition plate surrounds the fan for partitioning the air sucking side and the air blowing side of the fan from each other. Air current receiving means are provided on the partition plate on the air blowing side of the fan for receiving at least a part of the second air current portion. Air guide means are provided on the partition plate on the air blowing side of the fan for guiding the air current part received by the current receiving means and blowing the air out in a direction generally parallel to the axis of the fan. Preferably, means are provided defining an air compressing chamber adjacent the downstream end of the air guide means for collecting the air current and increasing the pressure thereof before the air is blown out.

569804

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