| 摘要 |
<p>A duct (35; 135; 235) from near the top of the skirt (30) of a two-piece piston (10) carries lubricant to the skirt pin bore (34), on each side of the skirt, and lubricates the pin joint (70). The skirt (30) is provided with a lubricant passage (35; 135; 235), such as from a shaker tray (33; 133; 233), to the pin bore (34, 134; 234) on each side of the pin joint of the skirt (30), piston crown struts (27), and wrist pin (40) on which a piston connecting rod (50) is joined. Fluid sprayed against the crown (20) descends onto the skirt (30) and some passes through the above-mentioned lubricant ducts or passages (35; 135; 235) for direct, continuous lubrication of the pin joint (70). <IMAGE></p> |
