We claim the ornamental design for a pulley with fan function, as shown and described.
FIG. 1 is a perspective view of a pulley with fan function showing our new design;
FIG. 2 is a front elevational view thereof, of which the rear, left side, and right side are identical;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a sectional view along line A-A in FIG. 4.
In use, the pulley with fan function embodying the claimed design is mounted on the bottom end of the main shaft of a grain milling machine, and transmits the rotary motion of the motor to the main shaft via a belt while on the other hand the arms of the pulley work as blades of a suction fan to suck bran generated during grain milling in the milling chamber and discharge the bran into a bran exhaust port, thereby promoting the exhaust of bran from the bran exhaust port without providing a specific fan.
It is to be noted that rear, left side, and right side elevational views of the claimed design are merely duplicative of the front elevational view thereof and are therefore omitted herefrom.