| 摘要 |
An air diffuser for use with an air feed in a heating, ventilation, and air conditioning (HVAC) system, having a rotatable plenum from which project hollow blades. Each blade has an outlet port along the blade trailing edge, such that air received from an HVAC system flows through the air diffuser and is expelled from the outlet ports, causing the blades to rotate. |
| 主权项 |
1. An air diffuser for use with an air feed in a heating, ventilation, and air conditioning (HVAC) system, the air feed having an air-feed cross-sectional area, the air diffuser comprising:
a mount portion for mounting in association with an air feed, the mount portion having a mount portion interior for receiving air from the air feed and the mount portion interior having a mount portion interior cross-sectional area; a plenum, rotatably connected to the mount portion, and having a plenum interior for receiving air from the mount portion interior, the plenum interior having a plenum cross-sectional area equal to or greater than the mount portion interior cross-sectional area; and a plurality of blades projecting from the plenum, each blade having a discharge slot, with a discharge area, each of the discharge slots in fluid communication with the plenum interior, wherein the total area of all the discharge areas is between about 75% and about 95% of the mount portion interior cross-sectional area and wherein a flow of air out of the discharge slots tends to cause the plenum and blades to rotate relative to the mount portion. |
