| 摘要 |
<p>A damper assembly for an air passage. A damper assembly includes a disk element (20) associated with a circular orifice (18) of an air passage, and an actuator (52) having an associated drive element (58). The disk (20) is coupled to the drive element, and to a fixed reference axis (86) by a linkage (72) so that as the actuator drive element (58) is displaced from a first limit position to a second limit position, the disk (20) moves between a sealing position and an open position. In the sealing position, the disk perimeter is flush against the perimeter of the orifice establishing an air-tight seal between the disk (20) and the perimeter of the orifice (18). In an open position, the disk (20) is displaced from the orifice perimeter and forms an angle with a plane defined by the orifice perimeter. An array of damper assemblies (figure 9) may be configured with a controller for selectively controlling the position of each actuator between the respective limit positions. </p> |
