Pistons, Rings and Connecting Rods - One-Piece Piston
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| 图 1 | g01084288 |
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(1) 顶环
(2) 中间环 (3) 控油环 (4) 活塞销孔 (5) 活塞销 (6) 活塞销挡圈 | |
该活塞为锻钢铸造的整体式活塞。 在活塞顶部和活塞裙部之间有一道宽大的环形槽。 活塞顶部和活塞裙部之间通过连接销孔的销杆连接。 三道活塞环均由活塞顶部载持。 机油从活塞冷却喷嘴流经活塞环正后方的腔室。 这些机油可冷却活塞，提高活塞环的使用寿命。 活塞有三道环，其中两道为压缩环，一道为油环。 三道环都位于活塞销孔上方。 机油经油环槽内的孔流回曲轴箱。
连杆的销孔端呈锥形。 这种锥形使连杆和活塞负荷最大的部位更结实。 四个成一定小角度的螺栓将连杆盖固定到连杆上。 这种设计可使连杆的宽度最窄，从而可使用较大的连杆轴承，同时，仍可以通过缸套取出连杆。
Caterpillar Information System:
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