Importance

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Abstract

An improved regenerative flow sweeping system for road and pavement sweeper vehicles includes first and second filter compartments as part of the recirculation loop in which the debris-entrained air is conducted from the intake hood into an initial separation compartment where some of the debris is removed from the air flow with the remaining air flow directed alternatively through one or the other of the first and second filter compartments for a selected period of time during which time finer particulates accumulate on the surface of the filter media. Thereafter, the air flow is redirected to the other filter compartment while pneumatic valves in the first filter compartment are selectively actuated to direct one or more pulses of compressed air into the filter media of the first filter compartment to remove accumulated particles on the filter media and effective “reverse flush” or purge the filter media. The first and second filter compartments are alternately place in and out of the air flow to filter particulates therefrom with the filter compartment that is taken out of the air flow subjected to the “reverse flush” to remove accumulate particulates therefrom.

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First Claim