Patent ID: 7178585
Filing Date: 2007-02-20
Classification: F28D,Y10S

Abstract:
1. A laminate-type evaporator comprising: a plurality of first plates stacked together in adjacent pairs with each of said plates including first and second tubular projections and a first recess, said adjacent pairs positioned in abutting engagement with one another with said first tubular projections defining a first tank, said second tubular projections defining a second tank, and said first recesses defining a plurality of passageways interconnecting said first and second tanks in fluid communication therewith; a plurality of second plates stacked together in adjacent pairs with each of said second plates extending between opposed end edges and including third and fourth tubular projections, a pair of elongate recesses extending parallel to one another, and a return recess interconnecting said elongate recesses adjacent one of said end edges, said adjacent pairs of said second plates positioned in abutting engagement with one another with said third tubular projections defining a third tank positioned downstream from said second tank in fluid communication therewith, said fourth tubular projections defining a fourth tank and said elongate and return recesses defining a plurality of U-shaped passageways interconnecting said third and fourth tanks, for permitting a fluid to enter said first tank and flow in an upstream to downstream direction through said initial passageways and said second tank into said third tank and through said U-shaped passageways prior to exiting said fourth tank; and a plurality of fins disposed between said adjacent pairs of said plates with each of said fins interposed between said adjacent pairs of said second plates overlying said return recesses and extending to said end edges adjacent thereto for inducing a transfer of thermal energy between an airflow through said fins and the fluid flowing through said return recesses;