An ice thermal storage type air conditioner includes an outdoor unit 14 equipped with a compressor 12 and an outdoor heat exchanger 13, an indoor unit 17 equipped with an indoor heat exchanger 16 and an expansion valve 18b, and an ice thermal storage tank 5. The ice thermal storage tank is equipped with...http://www.google.se/patents/US6253567?utm_source=gb-gplus-sharePatent US6253567 - Ice thermal storage type air conditioner and ice thermal storage tank