内燃机 - 活塞环 - 第3部分:钢制弹簧加载油控制环

[中文适用范围]： 本文件规定了 ISOR（带 R 形槽）和 ISOV（带 V 形槽）活塞环类型的钢制螺旋弹簧控油环的基本尺寸。 本文件适用于往复式内燃机的直径从 60 毫米到 160 毫米的钢制螺旋弹簧加载油控制环。 它也可用于在类似条件下工作的压缩机的活塞环。 [外文原描述]： This document specifies the essential dimensions of coil-spring-loaded oil control rings made of steel, of piston ring types SOR (with R-shaped groove) and SOV (with V-shaped groove). This document applies to coil-spring-loaded oil control rings made of steel with a diameter from 60 mm up to and including 160 mm for reciprocating internal combustion engines. It can also be used for piston rings in compressors working under analogous conditions.