Patent ID: 7862011

Claim:
An evaporative cooler, said evaporative cooler comprising in combination: a) a source of water; b) a media having a front side for air inflow and back side for air outflow; c) a device for providing a flow of air through said media; d) a drain pan for collecting water flowing from said media and including a drain for draining the collected water; e) a water distribution unit in fluid communication with said source of water for distributing water non uniformly onto said media, said water distribution unit producing a water application profile consistent with the water evaporation profile and the media fluid flow characteristics and including: i) a first spray bar having a first row of orifices extending longitudinally along said first spray bar for discharging first streams of water upwardly and a second row of orifices extending longitudinally along said first spray bar for discharging second streams of water generally upwardly and laterally toward said front side of said media; ii) a first spray bar channel for collecting and distributing the first streams of water onto said media in two rows at predetermined distances from said front side of said media; iii) a second spray bar having a third row of orifices extending longitudinally along said second spray bar for discharging third streams of water upwardly and a fourth row of orifices extending longitudinally along said second spray bar for discharging fourth streams of water generally upwardly and laterally toward said back side of said media; iv) a second spray bar channel for collecting and distributing the third streams of water onto said media in two rows at predetermined distances from the first streams of water distributed by said first spray bar channel; v) a distribution cap for deflecting the second streams of water onto said front side of said media and said fourth streams of water onto said back side of said media.