| 摘要 |
PROBLEM TO BE SOLVED: To reduce pulsation noise caused by pulsation by retaining pulsation reduction effect of a pulsation relaxing vessel in a refrigerant pump system adopted to an air conditioner or the like. SOLUTION: In the refrigerant pump system delivering refrigerant after sucking the same by a positive displacement pump provided with a suction pipe and a delivery pipe and preventing pulsation of the suction pipe and the delivery pipe by the pulsation relaxing vessel provided in at least the suction pipe and the delivery pipe, a gas refrigerant layer g is formed by heating liquid refrigerant "a" in the pulsation relaxing vessel 10 by a heating means 12 provided in the pulsation relaxing vessel 12, and a liquid surface level A of the liquid refrigerant "a" in the pulsation relaxing vessel is controlled in a predetermined range by controlling refrigerant temperature in the pulsation relaxing vessel 10. COPYRIGHT: (C)2008,JPO&INPIT
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