Axial fan drive and hub assembly for evaporative cooling equipment
OwnerJohn Santoroinventor
Life of this patent
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Abstract
According to at least one exemplary embodiment, an axial fan drive and hub assembly is disclosed. The assembly can include a drive unit having a planetary gear arrangement, and a fan hub coupleable to the drive unit. A sun gear of the gear arrangement can be driven by an input shaft, while either the planet gear carrier or the ring gear may be selected to be the output. The assembly can thus facilitate rotating a fan in the same or the opposite direction of rotation as the input shaft. The drive unit can further be easily interchangeable with other drive units having different gear ratios.
Claims21
An interchangeable system for varying the rotational speed and rotational direction of an axial fan, the interchangeable system comprising:
- a fan hub, the fan hub comprising a recess;
- a casing, the casing being sized and shaped to be interchangeably disposed within said recess;
- and
- a gearing arrangement enclosed within said casing.
An interchangeable drive unit for varying the rotational speed and rotational direction of an axial fan, the drive unit comprising:
- a casing, the casing being sized and shaped to be disposed within a fan hub recess;
- and
- a gearing arrangement enclosed within said casing, the gearing arrangement comprising a plurality of planet gears, a planet carrier, a sun gear, and a ring gear.
A system for varying the rotational speed and rotational direction of an axial fan, the system comprising:
- a fan hub, the fan hub comprising a plurality of fan blades positioned substantially evenly around said fan hub;
- and
- a gearing arrangement enclosed within said fan hub, the gearing arrangement comprising a plurality of planet gears, a planet carrier, a sun gear, and a ring gear.
Dependencies are inferred from the claim text.