Patent ID: 8701435
Filing Date: 2014-04-22
Classification: A23G,F25B,F25D

Abstract:
1. A frozen product dispenser, comprising: at least two product freeze barrels for receiving and chilling product for dispensing; a refrigeration system for chilling said at least two freeze barrels, said refrigeration system including a plurality of evaporators heat transfer coupled to associated ones of said at least two freeze barrels with at least two evaporators heat transfer coupled to each freeze barrel for chilling said barrels, a plurality of controllable expansion valves each having an outlet coupled to an inlet to an associated one of said evaporators, at least two compressors connected in parallel and having inlets coupled to outlets from said evaporators, and at least one condenser coupled between outlets from said at least two compressors and inlets to said expansion valves, and; a controller coupled to each freeze barrel, each compressor, and each expansion valve; wherein the controller is configured to operate each compressor and each expansion valve independently in response to a chilling requirement sensed by a sensor at one or more freeze barrels.