| 摘要 |
PURPOSE:To enable a direct supplying of oil from an outer tank to be performed and to enable an easy supplying of oil from a movable tank by a method wherein an oil feeding port of a fixed tank is made to have a size enabling the oil feeding port of the movable tank to be fitted. CONSTITUTION:In case of feeding oil, an oil feeding port cover 3 is removed and an oil feeding port 11 of a movable tank 12 is inserted into an oil feeding port 2 of a fixed tank 1, thereby a valve in the oil feeding port 11 of a movable tank 12 is pushed and opened by a valve receiver pin 10 of the valve receiving body 9 in the fixed tank 1 and the oil in the movable tank is flowed into the fixed tank 1. An inner diameter of the oil feeding port 2 of the fixed tank 1 is set to have such a diameter and height as those into which the oil feeding port 11 of the movable tank 12 is fitted. With this arrangement, the oil feeding port of the movable tank is fitted to the oil feeding port of the fixed tank and the oil can be fed, so that the split of oil during feeding of oil can be avoided and the feeding operation can be facilitated.
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