One or more of the louvers 210 that intersect one or more of the air transfer diverters 206 (e.g., louvers 210d-210g in FIG. 2) may be designed such that the louvers 210d-210g do not cover the intersected air transfer diverter 206. For example, the shielding portion of the louvers 210d-210g may be narrowed or eliminated along the segments of the louvers 210g-210g that intersect an air transfer diverter 206.
The self-activating louver systems are shown as integrated within the air collimator. However, it is within the principles of the invention to provide the self-activating louver systems separate but nevertheless adjacent to the air collimator.
FIGS. 3A and 3B show an exemplary fan tray including multiple fans and an air collimator, and FIGS. 4A to 4D are top (FIG. 4A), side (FIG. 4B), rear (FIG. 4D) and cutaway (FIG. 4C) views showing the exemplary fan tray of FIGS. 3A and 3B.
In particular, a fan tray 307 encloses a plurality of fans 505, 605, 705. In the cutaway view of FIG. 4C the fan hubs 691 of each of the fans 505, 605, 705 can be seen (the blades of each of the fans are not shown).
