ROTOR VENTILATOR

摘要

The invention disclosed is a rotor ventilator which includes a base to which a shaft is connected to extend upwardly therefrom and a rotor. The rotor is rotatable about the shaft and includes a plate and a plurality of vanes extending downwardly therefrom. Also included is a bearing means for supporting the rotor on the shaft. The bearing means is located at the plate, above the centre of gravity of the rotor.

主权项

1. A rotor ventilator that has:
a base;
a shaft that is connected to and extends upwardly from the base;a rotor that is rotatable about the shaft;a plate on the rotor;a plurality of vanes on the rotor that extend downwardly from the plate; a rotatable bearing unit that is connected to the plate and supports the rotor on the shaft; one race in the bearing unit that is disposed on a first plane that is generally perpendicular to the shaft; and another race in the bearing unit that is disposed in a second plane that is parallel to and axially offset from the first plane.