US Patent 7077739 High velocity and high dilution exhaust system
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Patent abstract
The high velocity and high dilution exhaust system uses a centrifugal fan provided with a tapered nozzle. The nozzle compresses the airstream exiting the fan to increase back pressure and velocity. The air flow from the fan enters a stack having a venturi further increasing the velocity and decreasing the pressure. The decrease in pressure causes a suction, allowing the introduction of ambient air to mix with and dilute the output of the fan. The total discharge from the exhaust stack has a high velocity resulting in a plume height and effective height of the exhaust before dispersion occurs.
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Patent Inventor Names
Marc Robitaille0
Minel Kupferberg0
Date of Patent
July 18, 2006
0Patent Application Number
108974350
Date Filed
July 23, 2004
0Patent Primary Examiner
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US Patent 7077739 High velocity and high dilution exhaust system
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