| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a deterioration detector of oil capable of being made compact by making the physical size of a float small. Ž<P>SOLUTION: The light emitting part 23 and light detecting part 24 of the detector body 21 fixed to the other end of the stay extending from one side end of an oil pan to the other side thereof are arranged in mutually opposed relationship so as to hold the oil introducing member 222 downward suspended from the undersurface of the float 22 moved in an up and down direction with respect to the detector body 21 by floating. The quantity of the light emitted from the light emitting part 23 to penetrate through the oil in the oil introducing member 222 is measured by the light detecting part 24 and the properties of the oil is determined on the basis of the quantity of the transmitted light by a determining part. Further, when the height of the oil surface X of the oil lowers, the light path from the light emitting part 23 is cut off in a light shielding part 222b by the float 22 moved downward by accompanying the lowering of the oil surface X and the quantity of the cut-off light is measured by the light detecting part 24 while the oil surface level of the oil is determined on the basis of the quantity of the cut-off light by the determining part. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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