| 主权项 |
1. An internal cleaning agent for a diesel engine to be sprayed from an intake system with a diesel engine running to clean and remove carbon and sludge deposits on the inside of the engine, the cleaning agent comprising a mixed solution in which a solvent and a grease are blended, wherein
the solvent includes at least one or more of liquid soluble substances, and properties of the solvent includes
an ignition point of 238° C. or more,ability of weakening formability of carbon deposit layer by attaching to and penetrating the carbon deposit layer, andexertion of sludge-dissolving power, the grease is lubricating oil comprising any of mineral oil, chemical synthetic oil, semi-synthetic oil, vegetable oil, or a combination thereof, and has a property as engine oil to be used to improve adhesion and a deposition time of the solvent, the mixed solution is formed by blending the grease and the solvent, and the grease and the solvent are selected in such a manner that the mixed solution has the following properties as well as evaporation characteristics: the properties include igniting at a higher temperature than the ignition characteristic of light oil, and preventing a knocking phenomenon before a fuel injection timing and at the end of the compression stroke from a relationship between the ignition timing and a flame propagation speed, and the evaporation characteristics include an evaporation time of eight minutes or more for vaporizing 2.5 cc of the mixed solution in a heated state at 120° C., and a blending ratio of solvent to grease is within a range of 99:1 to 80:20 in weight ratio. |
