Patent ID: 6877334
Filing Date: 2005-04-12
Classification: F25B,F25C,F28D,Y10T

Abstract:
1. A cooling unit adapted for use in a freezing mechanism, comprising a metallic cylindrical evaporator housing and a metallic freezing pipe helically wound on an outer periphery of the evaporator housing forming a series of coil segments for thermal contact with the evaporator housing, wherein consecutive ones of the coil segments contact each other along a helically shaped line of contact defining a first freezing pipe surface section facing exteriorly relative to the line of contact and a space formed between the contacting coil segments, respective second freezing pipe surface sections of the consecutive ones of the coil segments facing interiorly relative to the line of contact and the outer periphery of the evaporator housing, wherein said freezing pipe is embedded in a metal layer formed by slip casting of a low melting point alloy, the low melting point alloy completely filling the space and completely covering the first freezing pipe surface section.