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Product Code:SAE J2003
Title:Internal Combustion Engines-Piston Rings Coil Spring Loaded Oil Control Rings
Issuing Committee:Piston And Ring Standards Committee
Scope:This SAE Standard is equivalent to ISO Standard 6626.Differences, where they exist, are shown in the appendix with associated rationale.This document specifies the essential dimensions of piston ring types DSF-C, DSF-CNP, SSF, GSF, DSF, DSF-NG, and SSF-L coil spring loaded oil control rings.For the cast iron part the recommended material is class 10 according to SAE J1590. For special applications material classes 20 to 50 may be used.Variation in face design and spring groove from these may be used, as recommended by individual manufacturers, in plain or chromed versions.The tangential forces of coil spring loaded oil control rings can be varied over a wide range. Explanations and recommendations are given in Section 6.The normal range for axial width of coil spring loaded oil control rings (3 to 8 mm inclusive) is divided into 0.5 or 1.0 mm steps. In Tables 9 to 14 dimensions are given for coil spring loaded oil control rings within an axial width of 4.75 mm (i.e., 3/16 in) for existing applications in inch units.This document applies to coil spring loaded oil control rings up to 200 mm inclusive for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.

标准名称：	供水水文地质勘察规范
英文名称：	Standard for hydrogeological investigation of water-supply
中标分类：	工程建设 >> 工程勘察与岩土工程 >> 工程地址、水文地质勘察与岩土工程
ICS分类：	土木工程 >> 土木工程综合
替代情况：	GBJ 27-1988
发布部门：	中华人民共和国建设部
发布日期：	2001-07-04
实施日期：	2001-10-01
首发日期：	1900-01-01
作废日期：	1900-01-01
提出单位：	中华人民共和国建设部
归口单位：	原国家冶金工业局
起草单位：	中国冶金建设集团武汉勘察研究总院
起草人：	彭易华、龙建中、陈树林、张锡范、韩再生、韩国良、李天成
出版社：	中国计划出版社
出版日期：	2004-03-27
页数：	121页
书号：	1580058.459

本规范适用于城镇和工矿企业的供水水文地质勘察。

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