| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner driven by an engine for lubricating oil supply enabling to detect abnormality when abnormality, for example, of an oil level sensor occurs. SOLUTION: In a lubricating oil supply device for an engine 5 supply lubricating oil into the engine 5 by a lubrication means 24b, an oil level is detected during engine stop. A solenoid valve as a lubricating means is opened during supply and the solenoid valve is closed when an upper limit of the oil level is detected by the oil level sensor. If time of regulation or longer passes by the oil level reaches the upper limit, it is determined that abnormality of the oil level sensor or the like exists and the solenoid valve 24b is closed with giving an advance warning that inspection and maintenance is required. COPYRIGHT: (C)2005,JPO&NCIPI
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