| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise generating from an ejector in starting a compressor, in an ejector type refrigeration cycle including the ejector having swirl flow generation means.SOLUTION: A refrigerant discharge capacity is increased so that an increase amount per a prescribed time in increasing a refrigerant discharge capacity in starting a compressor 11 of an ejector-type refrigeration cycle, is kept smaller than a maximum capacity increase amount capable of being increased by the compressor 11 per the prescribed time. Thus increase of a flow rate of a gas-liquid two-phase refrigerant is suppressed even when the gas-liquid two-phase refrigerant flows into a refrigerant inflow passage 31e configuring swirl flow generation means, friction sound in circulating the gas-liquid two-phase refrigerant in the refrigerant inflow passage is reduced, and noise generating from the ejector can be reduced.SELECTED DRAWING: Figure 4 |
