| 摘要 |
PURPOSE:To aim at making a proper amount of lubricating oil maintainable for a long period of time, by having the oil fed to the bottom of an engine so as to cause its proper amount to be gathered thereat with a simple structure. CONSTITUTION:At the upside of a crank chamber 2, there is provided with an airtight oil tank 3 and at the interspace between this oil tank 3 and the crank chamber 2, an oil feed pipe 4 and an air feed pipe 5 are installed. The upper end of the oil feed pipe 4 is situated in the position adjacent to a bottom part inside the oil tank 3 while the lower end is situated beneath the proper level of the oil gathered on the bottom part of an engine. Likewise, the upper end of the air feed pipe 5 is interconnected to an air stratum 6 inside the oil tank 3 while the lower end is situated in position in accord with an oil proper level (a) at the engine's bottom part. |
