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

Claim 5:
6. A fan apparatus comprising:
a housing having an enlarged portion 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 enlarged portion of said housing for rotation about an axis, said blower wheel having a plurality of fan blades;
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, wherein the first and second fins each have a rearward portion with a curved profile following an outer diameter of the blower wheel; and
third and fourth fins outside of a respective one of the first and second fins, the third and fourth fins being oriented substantially parallel to the axis of the blower wheel.