A cool air feeding system that senses a temperature of each part of a refrigerator compartment, compares the sensed temperature with a reference temperature, determines which part is to be cooled, and redistributes cool air to better cool a part of the refrigeration having a greater need to be cooled....http://www.google.com.tw/patents/US5884496?utm_source=gb-gplus-share專利 US5884496 - Cool air feeding system for refrigerator
