2015 Fiscal Year Final Research Report
Formulation of a new lubrication system for automobile-engine by ionic liquid containing carbon dioxide
| Project/Area Number |
24656107
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 境界潤滑 / イオン液体 / 超臨界二酸化炭素 |
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| Outline of Final Research Achievements |
By using ILs as engine oil, the following interest lubricating system can be expected. The high-pressure CO2 produced by combustion of fuel gas is absorbed into an IL used as a lubricant. This CO2 absorption to the IL can make friction lower with thin tribo-film made of iron carbonate and/or bicarbonate. In this work, to study a possibility of ILs as new lubricants with such interest function, we evaluated the lubrication properties of ILs absorbed CO2 by ball-on-disk friction tests with SUJ2 steel ball and disk.
It was observed that 1,3-dimethylimidazolium dimethylphosphate ([C1C1im][dMp]) showed better lubricity than conventional synthesized hydrocarbon oil. The effect of absorbed CO2 is not remarkable in anti-wear performance, however it is noteworthy that a serious elevation of friction coefficient at early stage in test duration lubricated with [C1C1im][dMp] was suppressed in case with CO2 absorbed [C1C1im][dMp].
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| Free Research Field |
トライボロジー
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