Cooling disk for flake ice machine

A cooling disk for an evaporative refrigerant cooled flake ice machine comprising a disk member having an axial aperture, a circumferential outer perimeter, and first and second side cooling surfaces, the disk member including at least a first internal refrigerant flow passage extending from an inlet port into the interior of the disk member and returning to terminate at an outlet port, each port opening onto the axial aperture, the first passage defining along its length a plurality of radial outflow segments interspersed with a plurality of corresponding radial return segments, each outflow segment extending radially from the inlet port or another point adjacent the axial aperture to a point adjacent the perimeter and then turning at the point adjacent the perimeter to continue as a corresponding return segment extending radially back alongside the corresponding outflow segment to the outlet aperture or another point adjacent the axial aperture.

A cooling disk for an evaporative refrigerant cooled flake ice machine comprising a disk member having an axial aperture, a circumferential outer perimeter, and first and second side cooling surfaces, the disk member including at least a first internal refrigerant flow passage extending from an inlet port into the interior of the disk member and returning to terminate at an outlet port, each port opening onto the axial aperture, the first passage defining a first radial outflow segment extending radially from the inlet port to a point adjacent the perimeter and the first passage then passing through a turn at the point adjacent the perimeter to define a first radial return segment extending radially back to approach the axial aperture, the first radial outflow and return segments being separated by a first internal wall spoke, the first wall spoke spanning from the first side cooling surface to the second side cooling surface and extending radially from the axial aperture to the point adjacent the perimeter.