G3500B Engines Caterpillar


Cylinder Block, Liners and Heads

Usage:

G3516B 7EZ
位于缸体左侧的气缸与右侧的气缸成60度夹角。


图 1g00807706
(1) 气缸套
(2) 填料带
(3) O形密封圈
(4) 主轴承盖
(5) 螺栓

气缸套 (1)可被卸下,以便更换。 气缸套法兰落座于缸体上表面。 发动机冷却液绕流缸套以便保持缸套冷却。 填料带 (2)和三个O形密封圈 (3) 将冷却液密封在气缸体中。

主轴承盖 (4)上有4个螺栓 (5)将其固定到缸体上。



图 2g00807723
(6) 隔板
(7) 密封垫

发动机上每一缸都有单独的缸盖。 在每个气缸盖和气缸体之间有铝隔板 (6)和密封垫 (7)。 隔板和密封垫适应气缸套法兰的厚度。



图 3g00807727
(8) 排气门
(9) 进气门
(10) 密封垫
(11) 水封

每个气缸盖有四个气门。 两个排气门 (8)和两个进气门 (9)由凸轮轴和推杆控制。 关于气门工作的资料,请参阅系统运作, "气门系统零部件"。 气门导管是被压入气缸盖的。 火花塞位于四个气门之间。

另一个密封垫 (10)在隔板上密封气缸盖和隔板之间的排放油的通道。 发动机机油润滑气缸盖零部件后,发动机机油流回发动机缸体中。

气缸体的冷却液流通过水封 (11)流入气缸盖中。 冷却液流通过通道流入气缸盖中。 冷却液流出气缸盖,流入水歧管中。



图 4g00807743
(12) 凸轮轴盖
(13) 曲轴箱盖

凸轮轴盖 (12)使得维修人员能够接近凸轮轴和气门挺杆。 曲轴箱盖 (13)使得维修人员能够接近曲轴连杆、主轴承和活塞冷却喷嘴。

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