BS ISO 6627:2022 – TC

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Tracked Changes. Internal combustion engines. Piston rings. Expander/rail oil-control rings

Published By	Publication Date	Number of Pages
BSI	2022	56

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Categories: 43.060.10 - Engine block and internal components, BSI

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PDF Pages

PDF Title

30454877

A-30424226

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Foreword

Introduction

1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms

5 Ring types and designations
5.1 Types of expander/rail oil-control rings

5.2 General features

5.3 Designation examples

6 Common features
6.1 Expander
6.1.1 Design considerations
6.1.2 Without surface treatment
6.1.3 Nitrided surface (NX)
6.1.4 Tab angle

6.1.5 Expander dimensions
6.2 Rail features
6.2.1 Chromium-plated peripheral surface

6.2.2 Nitrided surface codes NS010 to NS050
6.2.3 PVD coated peripheral surface

6.2.4 Rail dimensions

6.3 Expander/rail assembly
7 Dimensions

8 Materials
9 Tangential force and nominal unit pressure
9.1 Tangential force, Ft
9.2 Nominal unit pressure

9.3 Classes of nominal unit pressure

Bibliography

Status	Definitive
Pages	56
Publication Date	2022-05-24
ISBN	978 0 539 21983 8
Standard Number	BS ISO 6627:2022 – TC
Title	Tracked Changes. Internal combustion engines. Piston rings. Expander/rail oil-control rings
Descriptors	Dimensions, Engine components, Piston rings, Road vehicles, Compressors, Oil control piston rings, Reciprocating engines, Internal combustion engines
Publisher	BSI
Committee	MCE/22
ICS Codes	43.060.10 - Engine block and internal components