发明名称 OIL CIRCULATION RATE MEASURING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an oil circulation rate measuring device optically measuring an oil circulation rate in a CO<SB>2</SB>heat pump system. SOLUTION: The oil circulation rate measuring device 1 includes an optical measuring means 5, a block body 6 is connected by piping between a gas cooler 12 of the CO<SB>2</SB>heat pump system and an expansion valve 13, and a filter member 4 removing unnecessary objects while uniformly mixing a coolant (CO<SB>2</SB>) mixed in oil is connected between an upstream side passage 2a of a passage 2 formed in the block body 6 and the gas cooler 12. In the optical measuring means 5, light of wavelengths absorbed by oil mixed in mixed fluid is projected, and a circulation rate of the oil is calculated on the basis of a working curve created from a transmissivity of light of wavelengths having passed through the mixed fluid. COPYRIGHT: (C)2010,JPO&amp;INPIT
申请公布号 JP2010078292(A) 申请公布日期 2010.04.08
申请号 JP20080250582 申请日期 2008.09.29
申请人 CHINO CORP;FUKUOKA UNIV 发明人 SHIMIZU TAKAO;TAKIGAWA RYUSUKE;HONDA TOMOHIRO;TAKAO KOKI
分类号 F25B49/02;F25B43/00;G01N21/27 主分类号 F25B49/02
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