Patent ID: 11965523
Assignee: PATTERSON FAN COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A fan apparatus comprising:
a housing defining at least one air intake and an outlet portion defining an outlet port;
said outlet port having a width and a height, the width being greater than the height;
a blower wheel supported in said housing for rotation about an axis, said blower wheel having a generally cylindrical configuration with a plurality of fan blades spaced apart around a periphery thereof in parallel with said axis;
a driver connected to the blower wheel to cause rotation of the blower wheel; and
a flow straightener assembly in the outlet portion of the housing, said flow straightener assembly having:
first and second fins spaced apart from one another and oriented substantially orthogonal to the axis of the blower wheel, the first and second fins being located at less than 20 percent and greater than 80 percent of the width of the outlet port, respectively; and
wherein the first and second fins each have a rearward portion with a curved profile following an outer diameter of the blower wheel.