| 摘要 |
PURPOSE: A device for lubricating a crank journal of a diesel vehicle is provided to improve startability by promptly supplying a normal-viscosity lubricating oil to a crank journal, and to improve the durability of a diesel vehicle by minimizing the friction of the crank journal with a main bearing. CONSTITUTION: A device for lubricating a crank journal of a diesel vehicle comprises a lubricating oil storage tank(11) to temporarily store a portion of the lubricating oil pumped by an oil pump(6), a heater(17) to heat the lubricating oil in the lubricating oil storage tank during initial starting, and a lubricating oil supply unit to supply the heated lubricating oil to a crank journal(2). The lubricating oil supply unit comprises a piston(12) installed in the lubricating oil storage tank, a spring(13) to elastically bias the piston toward the opposite to the piston, and an air valve(19) to selectively open and close an air tank(20) and a conduit(18) of the air tank. Since the viscosity of the lubricating oil is restored by heating, the lubricating oil is smoothly supplied to the crank journal in winter.
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