Abstract: A fan with airfoil blades is provided for a regenerative air vacuum street sweeper. The blades are formed using cut and pressed upper and lower panels which are welded at a forward edge to a rod to form the airfoil leading edge and welded at the rear edges to form the airfoil trailing edge. Pins extend laterally outwardly from the rod for mounting each blade in corresponding holes in the front and rear plates of the fan housing. The side edges of the blade are welded to the plates at a 9-11° angle of attack. The airfoil blades allow for reduced size, horse power, noise, and manufacturing and shipping costs.
Type:
Grant
Filed:
March 7, 2023
Date of Patent:
January 9, 2024
Assignee:
CURBTENDER SWEEPERS LLC
Inventors:
Aditya G. Anand, Clayton D. Wright, Aaron T. Baughman
Abstract: A fan with airfoil blades is provided for a regenerative air vacuum street sweeper. The blades are formed using cut and pressed upper and lower panels which are welded at a forward edge to a rod to form the airfoil leading edge and welded at the rear edges to form the airfoil trailing edge. Pins extend laterally outwardly from the rod for mounting each blade in corresponding holes in the front and rear plates of the fan housing. The side edges of the blade are welded to the plates at a 9-11° angle of attack. The airfoil blades allow for reduced size, horse power, noise, and manufacturing and shipping costs.
Type:
Grant
Filed:
September 14, 2020
Date of Patent:
July 18, 2023
Assignee:
Curbtender Sweepers LLC
Inventors:
Aditya G. Anand, Clayton D. Wright, Aaron T. Baughman