| 摘要 |
PURPOSE:To surely supply oil by connecting a plunger to a diaphragm receiving the pressure from a crank case to pressingly supply oil by the reciprocation of the plunger. CONSTITUTION:An oil pump is provided with a diaphragm 54 to which a plunger 57 is connected. A diaphragm type air pump E is driven by pulsating pressure from a crank case 63, and the diaphragm 54 is raised and lowered by pressurized air from the pump E. The plunger 57 of a small diameter is reciprocated along with the movement of the diaphragm 54 to supply oil from an oil tank 43 to the constant pressure oil chamber 27 of a mechanism D to keep oil pressure constant. Even if the pulsation pressure from the crank case is weak, this makes it possible to surely supply oil. |
