초록 ▼

A shroud, including a shield placed on either side of an evaporation pad, increases the length of travel air transit time within the pad. Pressurized water, emitted in jets from a plurality of orifices spaced along a manifold, is directed against a diffuser for dissipation and dissemination to the u

A shroud, including a shield placed on either side of an evaporation pad, increases the length of travel air transit time within the pad. Pressurized water, emitted in jets from a plurality of orifices spaced along a manifold, is directed against a diffuser for dissipation and dissemination to the upper edge of the pad. The pad is wetted intermittently as the result of a timer controlling distribution of the water. An auxiliary reservoir, in combination with relocatable pump, inlet valve and pad frames, provide for alternate downdraft as side draft operation.

대표청구항 ▼

In an evaporative cooler including, a housing having an upright side, an opening in said upright side defined by upper, lower and lateral edges, an air pervious, liquid absorbing evaporation pad adjacent said opening and having opposed horizontal edges, opposed upright edges and spaced apart normal

In an evaporative cooler including, a housing having an upright side, an opening in said upright side defined by upper, lower and lateral edges, an air pervious, liquid absorbing evaporation pad adjacent said opening and having opposed horizontal edges, opposed upright edges and spaced apart normal inlet and outlet sides surfaces, and blower means for drawing a stream of air at a normal velocity through said pad from said inlet side surface in a normal path having a direction generally perpendicular to the side surfaces of said pad, improvements therein for balancing the pressure drop of said air stream across said pad and for increasing the evaporative efficiency of said cooler, said improvements comprising: shroud means for diverting said air stream from said normal path thereof to a circuitous path to increase the length of travel of said air stream through said pad, said shroud means including (a) inlet control means for directing the entrance of said stream of air into said pad through a predetermined inlet portion of the inlet side thereof, said inlet control means having (i) an air impervious outer shroud for masking the entrance of said stream of air into said pad, and (ii) an air inlet formed in said outer shroud in registry with the inlet portion of said pad; and (b) outlet control means for directing the exit of said stream of air from said pad through a predetermined outlet portion thereof, said outlet control means having (i) an air impervious inner shroud masking the exit of said stream of air from said pad, and (ii) an air outlet formed in said inner shroud in registry with the outlet portion of said pad; said predetermined outlet portion being displaced laterally from said inlet portion with respect to the direction of said normal path of said stream of air.