초록 ▼

An ice making machine includes a freezing plate having one surface placed in contact with an evaporator and the other surface serving as a freezing surface, and a water distributor for spraying water over the freezing surface. The water distributor comprises a pipe having a number of spaced orifices

An ice making machine includes a freezing plate having one surface placed in contact with an evaporator and the other surface serving as a freezing surface, and a water distributor for spraying water over the freezing surface. The water distributor comprises a pipe having a number of spaced orifices formed along the longitudinal direction of the pipe. Water is sprayed over the freezing surface. A dry zone or zone on which no water is sprayed is formed on the freezing surface at a location corresponding in position to the region of the one surface provided with the evaporator. Formation of ice starts from the boundary defining the dry zone, as the dry zone is inherently colder than the area on which water is sprayed, and a solid ice nucleus for propagating ice is formed therein, and proceeds to an ice slab over the whole freezing surface except the dry zone.

대표청구항 ▼

An ice making machine repeating an ice making cycle and a deicing cycle during operation thereof, comprising: a freezing plate having one surface placed in contact with an evaporator and the other surface serving as a freezing surface; a compressor in fluid communication with said evaporator for sup

An ice making machine repeating an ice making cycle and a deicing cycle during operation thereof, comprising: a freezing plate having one surface placed in contact with an evaporator and the other surface serving as a freezing surface; a compressor in fluid communication with said evaporator for supplying a refrigerant thereto; means disposed in the vicinity of one end of said freezing plate for distributing water over said freezing surface of said freezing plate during the ice making cycle; and said water distributing means including means operative during the ice making cycle for leaving a predetermined region of said freezing surface a dry zone in which no water is distributed on said freezing surface, said predetermined region corresponding in position to a portion of the region of said freezing plate where said evaporator is disposed, whereby the dry zone in which no water is distributed and which is in a region adjacent the evaporator is inherently somewhat colder than the region on which water is distributed, thereby ensuring the formation of a solid ice nucleus for propagation of ice to be made.