BS ISO 6627-2011 en_8873 Internal combustion engines Piston rings Expander segment oil-control rings《内燃机.活塞环.膨胀器 分段式控油油环》.pdf
《BS ISO 6627-2011 en_8873 Internal combustion engines Piston rings Expander segment oil-control rings《内燃机.活塞环.膨胀器 分段式控油油环》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 6627-2011 en_8873 Internal combustion engines Piston rings Expander segment oil-control rings《内燃机.活塞环.膨胀器 分段式控油油环》.pdf(26页珍藏版)》请在麦多课文档分享上搜索。
1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 6627:2011 Internal combustion engines Piston rings Expander/ segment oil-control ringsBS ISO 6627:2011 BRITISH STANDARD National foreword This British Standard is the U
2、K implementation of ISO 6627:2011. The UK participation in its preparation was entrusted to Technical Committee MCE/14/-/10, RIC engines - Cylinders, pistons and rings. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purpor
3、t to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 62299 1 ICS 43.060.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the S
4、tandards Policy and Strategy Committee on 31 August 2011. Amendments issued since publication Date Text affectedBS ISO 6627:2011Reference number ISO 6627:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 6627 Second edition 2011-08-01 Internal combustion engines Piston rings Expander/segment oil-control ri
5、ngs Moteurs combustion interne Segments de piston Segments racleurs rgulateurs dhuile/Ressorts dexpansion BS ISO 6627:2011 ISO 6627:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
6、by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-
7、mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 6627:2011 ISO 6627:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 1 3 Symbols and abbreviated terms 1 4 Ring types and designation
8、s . 3 4.1 Types of expander/segment oil-control rings 3 4.2 General features 4 4.3 Designation examples . 5 5 Common features 5 5.1 Expander-spacer . 5 5.2 Segment features 7 5.3 Expander/segment assembly . 10 6 Dimensions 10 7 Materials . 13 7.1 Expander-spacer . 13 7.2 Segments . 13 8 Tangential f
9、orce and nominal contact pressure 13 8.1 Tangential force . 13 8.2 Classes of nominal contact pressure 13 Bibliography 15 BS ISO 6627:2011 ISO 6627:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards
10、 bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organiza
11、tions, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in t
12、he ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of
13、 the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6627 was prepared by Technical Committee ISO/TC 22, Road vehic
14、les. This second edition cancels and replaces the first edition (ISO 6627:2000), which has been technically revised. BS ISO 6627:2011 ISO 6627:2011(E) ISO 2011 All rights reserved vIntroduction ISO 6627 is one of a series of International Standards dealing with piston rings for reciprocating interna
15、l combustion engines. Others are ISO 6621, ISO 6622, ISO 6623; ISO 6624, ISO 6625 and ISO 6626 (see Clause 2 and the Bibliography). The common features and dimensional tables included in ISO 6627 represent a broad range of variables. In selecting a ring type, the designer will above all need to cons
16、ider the particular operating conditions. Moreover, it is essential that the designer refer to the specifications and requirements of ISO 6621-3 and ISO 6621-4 before completing the selection. BS ISO 6627:2011BS ISO 6627:2011 INTERNATIONAL STANDARD ISO 6627:2011(E) ISO 2011 All rights reserved 1Inte
17、rnal combustion engines Piston rings Expander/segment oil-control rings 1 Scope This International Standard specifies the essential dimensional features of expander/segment oil-control rings, without providing a complete product description (because expander-spacer design varies from piston-ring man
18、ufacturer to piston-ring manufacturer, the interaction between the manufacturer and the client will determine specific design details). This International Standard applies to expander/segment oil-control rings of nominal diameters ranging from 40 mm to 125 mm for reciprocating internal combustion en
19、gines for road vehicles and other applications. It also applies to piston rings for compressors working under analogous conditions. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies.
20、For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6621-2, Internal combustion engines Piston rings Part 2: Inspection measuring principles ISO 6621-3, Internal combustion engines Piston rings Part 3: Material specifications ISO 6621-4, Inte
21、rnal combustion engines Piston rings Part 4: General specifications ISO 6626, Internal combustion engines Piston rings Coil-spring-loaded oil control rings 3 Symbols and abbreviated terms For the purposes of this International Standard, the symbols and abbreviated terms in Table 1 apply. Table 1 Sym
22、bols and abbreviated terms Symbol abbreviated terms Description a 1 Segment radial wall thickness a 8Spacer radial thickness a 9Expander radial thickness a 11Assembly radial thickness a 14Seating tab height d 1Nominal ring assembly diameter (nominal diameter) h 1Nominal assembly width BS ISO 6627:20
23、11 ISO 6627:2011(E) 2 ISO 2011 All rights reservedTable 1 (continued) Symbol abbreviated terms Description h 24 Segment contact face width h 9Expander width h 10Segment width near inside diameter (ID), after coiling h 11Segment width near outside diameter (OD), after coiling and surface treatment or
24、 plating h 12Nominal segment width h 13Spacer width p oNominal contact pressure p ouUnit contact pressure s 1Segment closed gap; stagger gap F tTangential force F tcSpecific tangential force Tab angle CR1.CR2 Chromium-plating thickness LM Piston rings with partly cylindrical machined peripheral face
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