| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lubrication system of an internal combustion engine which lubricates a high pressure pump for pumping a liquefied gas fuel with a lubrication oil from which an insoluble component that does not dissolve in the liquefied gas fuel is removed, and to provide an internal combustion engine including the lubrication system and a lubrication method of the internal combustion engine.SOLUTION: A lubrication system of an internal combustion engine includes an insoluble component removal oil supply device 40 which mixes an engine oil with dimethyl ether in a liquid phase, removes an insoluble component of the engine oil which does not dissolve in dimethyl ether in the liquid phase, and lubricates a supply pump 6 with the engine oil from which the insoluble component is removed.</p> |
