| 摘要 |
PURPOSE:To reduce the dimension of a lubricating-oil pump by which lubricating oil is supplied into an engine equipped with a plurality of cylinder by feeding the lubricating oil discharged from the lubricating-oil pump into the upstream part from a carburetor in a fuel passage. CONSTITUTION:The lubricating oil in a main tank 24 can be pumped-up into a subtank 28 through an oil feeding pipe 27 by an oil supply pump 26. The lubricating oil in said subtank 28 can be allowed to flow into a lubricating-oil pump 30 through a lubricating-oil suction pipe 29. In engine operation, the lubricating- oil pump 30 is operated to meter the lubricating oil supplied from the subtank 28, and to feed the oil into a strainer 18 side under pressure through a discharge port 31 and an oil discharge pipe 32. The oil is filtered by a filter 20 in the strainer 18, and mixed uniformly into the fuel in the stirred state. After discharged from the strainer 18, the oil mixed into the fuel is equally distributed together with the fuel, into the crank chamber of each cylinder by each carburetor 14 through the second fuel discharge pipe 22 and a fuel distributing pipe 23. |
