| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubrication device for an internal combustion engine, capable of reducing loss due to friction to drive force outputted from the internal combustion engine. SOLUTION: In this lubrication device 1-1 for an internal combustion engine, oil is circulated to the internal combustion engine, and the internal combustion engine is lubricated. It is provided with a micro-bubble generating device 4 to generate micro-bubbles M, and the micro-bubbles M generated by the micro-bubble generating device 4 are mixed in oil. Oil mixed with the micro-bubbles M is supplied to a lubricating part in the internal combustion engine, and loss due to friction to the driving force outputted from the internal combustion engine is reduced. COPYRIGHT: (C)2007,JPO&INPIT
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