| 摘要 |
PURPOSE:To obtain a heat storage type air conditioning apparatus being free from disadvantages such as a damage of a compressor and reduction of a cooling-heating capacity due to the excess and deficiency of a refrigerant in both of a circuit for general cooling and heating and a circuit for releasing cold and heat which can be made to communicate with and cut off each other, on the occasion when these circuits are operated simultaneously or discretely. CONSTITUTION:When a first bypass circuit 22 and a second bypass circuit 23 are cut off, a circuit 18 for general cooling and heating driven by a compressor 1 and a circuit 21 for releasing cold and heat which is driven by a refrigerant gas pump 13 are made to be of separate and independent circuit constructions respectively and a cooling operation or a heating operation through a first use-side heat exchanger 4a and a second use-side heat exchanger 4b is conducted. Therefore a refrigerant and a refrigerator oil in the two circuits are prevented from being biased in the circuit on one side. At the time of a cold-storage or heat-storage operation for a heat storage tank 8, both of the bypass circuits 22 and 23 are opened, the circuit 18 for general cooling and heating and the circuit 21 for releasing cold and heat communicate with each other, the refrigerant from the circuit 18 for general cooling and heating is led to the heat storage tank 8 and the cold or the heat is stored in a heat storage medium 7.
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