Heat exchangers

Claim 1

A VEHICLE INCLUDING: A BODY PROVIDING AN ELONGATE CHAMBER FOR HOLDING CARGO, SAID BODY HAVING TOP, BOTTOM, SIDE AND END WALLS; A PLURALITY OF LONGITUDINAL TRANSVERSELY SPACED RUNNERS ON SAID BOTTOM WALL FOR HOLDING CARGO IN SAID CHAMBER SPACED ABOVE SAID BOTTOM WALL, SAID RUNNERS HAVING TRANSVERSE APERTURES THRERETHROUGH TO PERMIT FLOW OF AIR TRANSVERSELY IN SAID CHAMBER BELOW SAID CARGO SUPPORTED BY SAID RUNNERS; AN INNER WALL ON EACH OF SAID SIDE WALLS EXTENDING SUBSTANTIALLY THE FULL LENGTH OF EACH OF SAID SIDE WALLS; MEANS BETWEEN SAID INNER WALLS AND SAID SIDE WALLS SECURING SAID INNER WALLS TO SAID SIDE WALLS IN SPACED RELATION THERETO TO PROVIDE VERTICAL PASSAGES; SAID INNER WALLS BEING SPACED FROM SAID BOTTOM AND TOP WALLS; AN EVAPORATOR ASSEMBLY SECURED TO EACH OF SAID SIDE WALLS; A COVER PLATE SECURED TO EACH OF SAID SIDE WALLS CONSTITUTING A DOWNWARD EXTENSION OF SAID INNER WALLS AND COVERING SAID EVAPORATOR ASSEMBLIES, SAID PASSAGES OPENING DOWNWARDLY ABOVE SAID EVAPORATOR ASSEMBLIES; PLENUM MEANS PROVIDING A LONGITUDINAL PLENUM AT THE UPPER END OF EACH INNER WALL OF GREATER WIDTH THAN SAID PASSAGES, SAID PLENUMS EXTENDING LONGITUDINALLY SUBSTANTIALLY THE FULL LENGTH OF SAID SIDE WALLS ADJACENT SAID TOP WALL OF SAID BODY, SAID PASSAGES OPENING UPWARDLY INTO SAID PLENUMS; AND A PLURALITY OF LONGITUDINALLY SPACED AIR MOVING MEANS FOR DRAWING AIR TRANSVERSELY OUTWARDLY FROM THE UPPER PORTION OF SAID CHAMBER INTO SAID PLENUMS AND MOVING THE AIR DOWNWARDLY THROUGH SAID PASSAGES PAST SAID EVAPORATOR ASSEMBLIES, AND INTO THE CHAMBER ADJACENT SAID BOTTOM WALL.