MACHINE FOR CLEANING OF HARD PAVEMENTS Russian patent published in 2000 - IPC

FIELD: municipal machinery and equipment. SUBSTANCE: machine has fan-type air blower 1, trash collector 9 and cylindrical vortex chamber 5 which is open in bottom part. These three units are installed on chassis of machine. Trash collector and vortex chamber are mounted on separate frame. Machine is provided with ejector-type filter 11. Nozzle 15 of filter ejector 12 is connected through gas flow regulator 18 with one line of discharge passage of air blower. Suction chamber 14 of ejector through external passage 16 is connected with one of sections 10b of coarse filter of trash collector. Section 10a of coarse filter is connected with discharge passage of air blower. Other line of discharge passage of air blower by its nozzle 7 is connected with inlet of vortex chamber 5. Trash receiving passage 8 of vortex chamber 5 is connected with removable trash collector 10. Vortex chamber 5 is made up of three sections. Two side sections of them are adapted for turning. Application of aforesaid embodiment of machine widens its operating potentialities. EFFECT: higher efficiency. 3 cl, 3 dwg