CPC E01H 1/0836 (2013.01) [A47L 5/22 (2013.01); A47L 9/104 (2013.01); F04D 17/164 (2013.01); F04D 29/281 (2013.01); F04D 29/4226 (2013.01); E01H 1/0845 (2013.01); F05D 2230/10 (2013.01)] | 20 Claims |
1. A regenerative street sweeper having a pick-up head, a hopper to receive debris-laden air from the pick-up head, a dust separator, and a fan to receive air from the dust separator and direct air to the pick-up head, the fan comprising:
a cylindrical housing having opposite sides and a curved wall extending between the opposite sides;
an axial air inlet downstream of the dust separator;
a radial air outlet to direct clean air to the pick-up head;
a plurality of rotatable airfoil blades mounting in the housing to direct air from the air inlet to the air outlet; and
each airfoil blade of the plurality of airfoil blades including a leading-edge rod.
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