Patent ID: 6030173
Filing Date: 2000-02-29
Classification: F04D,F24C

Abstract:
A suction unit comprising:an electric motor (1) housed in a cylindrical cover (2), the motor having a through shaft having opposite ends extending outwardly from the motor,a first fan (6) splined to one end of the through shaft and a second fan (6) splined to the opposite end of the through shaft, the motor being between the first fan and the second fan,a first auger (8) and an adjacent second auger (8), the motor being disposed partially in each of the augers, the first fan being disposed in the first auger and the second fan being disposed in the second auger, the first auger and the second auger having a space (9) therebetween, the first auger and the second auger defining a casing (7),the first auger and the second auger each having an external side, each external side being provided with a suction inlet (8a), the first auger and the second auger each having an internal side in the space between the first auger and the second auger, each internal side being provided with a suction inlet (8b) such that four suction inlets are provided,a single outflow outlet formed in the casing wherein outflow from the first fan and outflow from the second fan are combined.