Patent ID: 8402773
Filing Date: 2013-03-26
Classification: F25B

Abstract:
1. A two-stage cooling system configured to cool an interior of an enclosure, comprising: a cabinet defining a venting chamber; a first vortex tube comprising (i) a first hot pipe within the venting chamber, and (ii) a first cool gas delivery pipe extending outwardly from the cabinet, the first cool gas delivery pipe configured to deliver cold gas to the interior of the enclosure; and a second vortex tube comprising (i) a second hot pipe within the venting chamber, (ii) a second cool gas delivery pipe extending outwardly from the cabinet, the second cool gas delivery pipe configured to deliver cold gas to the interior of the enclosure, and (iii) at least one one-way check valve operatively attached to the second hot pipe to prevent backflow of hot exhaust from the first hot pipe into the second hot pipe; and at least one porous plastic tube connected to an outlet of the first hot pipe and an outlet of the second hot pipe, wherein exhaust gas from the first hot pipe and the second hot pipe is routed to the at least one porous plastic tube and passes through the at least one porous plastic tube.