发动机冷却系中汽蚀通常由活塞敲缸和燃烧压力造成的汽缸振动引起。缸套振动产生成千上万的细小汽泡，这些汽泡随着缸套振动反复形成和破裂。此过程腐蚀缸套外表，造成局部出现坑穴，这些坑穴不断加深加大，这就是汽蚀或缸套点蚀。汽蚀对缸套造成的损害在轻微状态下是局部干净 Cavitation in the engine cooling system is usually caused by cylinder vibrations caused by piston knocking and combustion pressure. Vibrations in the liner create tens of thousands of tiny bubbles that repeatedly form and crack as the liner vibrates. This process erodes the outer surface of the cylinder liner, resulting in the emergence of local pit, these pit deepening deepening, which is cavitation or cylinder pitting. Damage caused by cavitation to the liner is partially clean under light conditions