Patent ID: 8556574
Filing Date: 2013-10-15
Classification: F04D,F05D,F24F,Y02B

Abstract:
1. A modular fan system configured for use in an air-handling system configured to deliver air to a ventilation system for at least a portion of a building, the modular fan system comprising: a plurality of modular units configured to be stacked adjacent to one another in at least one row or column to form an array for use in an air-handling system configured to deliver air to a ventilation system for at least a portion of a building, the modular units each including a chamber having a front end and a back end, the modular units are stackable adjacent to one another in the array, such that, when the modular units are stacked, the chambers open at the back ends into a common discharge plenum where the air mixes; motors and fans positioned in the chambers of the modular units, the fans located to take in air from the front ends of the corresponding chambers and to discharge air from the back ends of the corresponding chambers, the motors having a corresponding first speed when driven at a frequency of 60 Hz, the fans being configured to deliver an air flow amount based on a speed of the corresponding motor; and a speed controller to operate at least one of the motors at a speed that is greater than the first speed to deliver an associated air flow amount from the corresponding one of the fans.