Lead Septum/Foam Scroll for Centrifugal Fans
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-28
Aerodynamic noise from centrifugal fans is reduced with a minimum loss of fan performance by use of a modified fan scroll. The device permits standard centrifugal fans to be operated at lower noise levels or higher speeds with increased air flow but without proportional increase in noise.