Patent ID: 9739287
Date: 2017-08-22
CPC Classifications: F04D,F05D,Y10T

Claim:
1. A motor assembly comprising: a fan housing comprising an air inlet and an air outlet; a motor positioned within said air inlet, said motor comprising a first end, a second end, and a shaft; at least one mounting arm coupled to said motor and said fan housing; a fan coupled to said shaft proximate said motor second end; and an inlet guide vane coupled to said at least one mounting arm, said inlet guide vane positioned at least partially within said air inlet between said motor and said fan housing, said inlet guide vane comprising a curved inner surface opposite a curved outer surface, wherein said curved inner surface and said curved outer surface are configured to direct air into said air inlet; wherein said at least one mounting arm comprises a streamlined body having a stagnation point and a plurality of points along said streamlined body downstream of said stagnation point, wherein each point of the plurality of points has a coefficient of pressure less than 0.5, said streamlined body further comprising a pair of opposing surfaces extending from said stagnation point and meeting at a second end, said streamlined body configured to direct air around said motor and to reduce airflow restriction and flow disturbance within said fan housing; and wherein said at least one mounting arm is curved in the axial direction and is configured to turn airflow upstream of said fan.