| 摘要 |
PURPOSE:To make the ratio of fuel and lubricating oil constant and facilitate the production and the assembly by constructing a fuel tank to be brought up and down according to the weight of fuel and correspondingly feeding lubricating oil to the fuel tank by a fuel feeding pump. CONSTITUTION:When fuel is suplied from an oil-supply port 2a, a fuel tank 2 is brought down by the weight of fuel in accordance with the amount against the elasticity of a bellows 4a. When the inside of a pump chamber 4b is contracted, lubricating oil inside the pump chamber 4b is conducted to an oil feeding port 2b via a pipe 4c, and supplied into the fuel tank 2. At this stage, lubricating oil is conducted through a pipe 4c. This construction permits supplying the lubricating oil of a fixed ratio corresponding to the supplied fuel into the fuel tank 2 and obtain a fixed mixing ratio between the fuel and the lubricating oil. |
