Filter cleaning system for floor cleaning apparatus

摘要

A floor cleaning apparatus includes a housing. A dirt collection vessel with filter and a suction generator are carried on the housing. The floor cleaning apparatus also includes a four port/two position directional control valve and a valve actuator. The valve actuator selectively displaces the directional control valve between a first position wherein dirt and debris is captured in the dirt collection vessel by the filter and a second position wherein clean air purges dirt and debris from the filter into the dirt collection vessel.