Patent ID: 7127958

Claim:
A dust testing facility for testing environmental dust affects upon a motor vehicle, comprising: a dust testing chamber having an interior chamber space structured to receive therewithin a motor vehicle, said dust testing chamber comprising a ceiling, an oppositely disposed flooring group and a plurality of sidewalls disposed between said ceiling and said flooring group, said ceiling, flooring group and sidewalls collectively defining said interior chamber space; said flooring group comprising a floor grating; a plenum below said floor grating; and a plurality of return ducts interfaced with said plenum and fluidically communicating with said interior chamber space through said floor grating; an air supply system configured to supply flowing air to said dust testing chamber; a dust supply system configured to provide a mixture of fluidized dust and compressed air; a dust spray system mounted within said dust testing chamber and connected to said dust supply system, said dust spray system being configured to provide clouding of the dust within said interior chamber space in response to receiving the mixture of fluidized dust and compressed air from said dust spray system; and a dust recapture system connected between said flooring group and said air supply system and further connected with said dust supply system, said dust recapture system comprising: an air filtration unit structured to filter air and the dust from said flooring group and allow the flowing air to recyclably pass into said air supply system; and a return dust fluidizer structured to fluidize the dust from said plenum and return the dust to said dust supply system.