초록 ▼

Apparatus for use with refrigerators, particularly of the walk-in cooler type, wherein, when available, low temperature atmospheric air is drawn into the cooler for cooling purposes, rather than utilizing the usual compressor type refrigeration system. The apparatus is mounted within the space to be

Apparatus for use with refrigerators, particularly of the walk-in cooler type, wherein, when available, low temperature atmospheric air is drawn into the cooler for cooling purposes, rather than utilizing the usual compressor type refrigeration system. The apparatus is mounted within the space to be cooled and utilizes temperature sensing means for automatic operation, and in an embodiment, employs an electric storage battery which would permit extended operation in the event of a power failure.

대표청구항 ▼

A unitized auxiliary refrigeration system utilizing atmospheric air for coolers having thermally insulated walls defining a cooled space and cooled by a primary refrigeration system comprising, in a combination, a rectangular housing adapted to be mounted within the space to be cooled having an end

A unitized auxiliary refrigeration system utilizing atmospheric air for coolers having thermally insulated walls defining a cooled space and cooled by a primary refrigeration system comprising, in a combination, a rectangular housing adapted to be mounted within the space to be cooled having an end wall and sidewalls, an atmospheric air inlet defined in one of said housing walls, an atmospheric air outlet defined in another wall of said housing, a fan within said housing having an inlet port communicating with said atmospheric air inlet and an outlet port communicating with said atmospheric air outlet, an electric motor drivingly connected to said fan, first electric temperature sensing means mounted upon said housing sensing the temperature of the air within the space to be cooled, second electric temperature sensing means sensing the atmospheric air temperature, control means upon said housing electrically connected to said motor and first and second temperature sensing means adapted to energize said motor upon said first sensing means indicating the need for cooling and said second sensing means sensing a predetermined atmospheric temperature, and electric power supply means supplying said control means.