Vacuum cleaner with noise suppression features

摘要

A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of a suction nozzle and an above-the-floor cleaning tool. An exhaust filter housing includes a suction duct and an exhaust plenum, with the suction duct communicating with the chamber outlet. A suction source housing includes an open end communicating with the exhaust plenum and a closed end. A suction source is positioned within the suction source housing to define an annular exhaust flow passageway surrounding the suction source from the housing closed end to the housing open end. The suction source includes a suction inlet communicating with the suction duct and an exhaust outlet communicating with the housing closed end.

主权项

1. A floor cleaner comprising:
a base defining a front and a rear side of the floor cleaner; a plurality of wheels coupled to the base for rollingly supporting the base on a surface; a suction nozzle coupled to the base; a handle pivotably connected to the base; an above-the-floor cleaning tool; a dirt cup removably coupled to the handle and the dirt cup including,
a separation chamber,a first dirty-air conduit extending between and in fluid communication with the suction nozzle and the separation chamber to define a floor dirty airflow pathway between the suction nozzle and the separation chamber, anda second dirty-air conduit extending between and in fluid communication with the above-the-floor cleaning tool and the separation chamber to define an above-the-floor dirty airflow pathway between the above-the-floor cleaning tool and the separation chamber; a suction source supported on the floor cleaner and in fluid communication with and positioned downstream of the separation chamber such that a suction is provided at the suction nozzle and at the above-the-floor cleaning tool.