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Device for separation of dust

  • US 5,720,243 A
  • Filed: 12/20/1996
  • Issued: 02/24/1998
  • Est. Priority Date: 01/12/1996
  • Status: Expired due to Term
First Claim
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1. A system for centrifugal purification of combustion air, said system comprising a fan wheel, a helical fan housing surrounding said fan wheel, and an air nozzle disposed within said fan housing close to said fan wheel, said air nozzle serving as a passageway for combustion air and having an inlet (12) comprising a baffle wall (14) located close to the periphery of said fan wheel and conducting air to said inlet, said baffle wall having a semi-elliptical shape as seen in a direction of air flow, said semi-elliptical shape being defined by an ellipse having an axes ratio of between 2.0:

  • 1 to 3.5;

    1.

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