1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58declaration ICS 27.020Internal combustion engines Engine weight (mass) BRITISH STANDARDBS ISO 21006
2、:2006BS ISO 21006:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006ISBN 0 580 48624 9Cross-referencesThe British Standards which implement international publications referred to in this document may be found in the BSI
3、 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for it
4、s correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii to vi, pages 1 to 5 and a back cover.The BSI copyright notice displayed in th
5、is document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this subcommittee can be obtained on request to its secretary. present to the responsible international/European committee any enquiries on the inte
6、rpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard reproduces verbatim ISO 21006:2006 and implements it as the UK national standard.The UK participation in i
7、ts preparation was entrusted by Technical Committee MCE/14, RIC engines, to Subcommittee MCE/14/-/6, Performance, which has the responsibility to: aid enquirers to understand the text;Reference numberISO 21006:2006(E)INTERNATIONAL STANDARD ISO21006First edition2006-05-15Internal combustion engines E
8、ngine weight (mass) declaration Moteurs combustion interne Dclaration du poids (de la masse) du moteur BS ISO 21006:2006ii iiiContents Page Foreword iv 0 Introduction . v 0.1 General. v 0.2 Weight and mass v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols . 2 5 Engine Wei
9、ght (mass) Declaration 2 Annex A (normative) Weight (mass) Declaration 3 Bibliography . 5 BS ISO 21006:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
10、 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 organizations, governmental and non-governmental, in liaison with ISO, also take part
11、 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 the ISO/IEC Directives, Part 2. The main task of technical committees is to pr
12、epare 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 the member bodies casting a vote. Attention is drawn to the possibility that
13、 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 21006 was prepared by Technical Committee ISO/TC 70, Internal combustion engines. BS ISO 21006:2006v0 Introduction 0.1 General This Interna
14、tional Standard has been drawn up to help manufacturers declare the weight (mass) of Reciprocating Internal Combustion (RIC) engines. This International Standard can be used: a) in conjunction with a standard dealing with engine power (e.g. ISO 3046-1, ISO 14396) drafted in accordance with the ISO-C
15、ore-Satellite-Concept principle so as to become a complete standard. NOTE ISO 15550 is the Core Standard and contains the requirements that are common to all engine applications. b) as a stand-alone document. ISO 3046-1 and ISO 14396 have been published as Satellite Standards. The next editions of I
16、SO 1585, ISO 2534, ISO 8665, ISO 9249 and ISO 4106 will, as Satellite Standards, also belong to the ISO-Core-Satellite family. 0.2 Weight and mass In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the
17、local acceleration of free fall in that reference frame (see Item 3-9.2 of ISO 31-3:1992). The SI unit of the quantity weight defined in this way is the newton (N). However, in commercial and everyday use, and especially in common parlance, weight is usually used as a synonym for mass. The SI unit o
18、f the quantity weight used in this sense is the kilogram (kg) and the verb “to weigh” means “to determine the mass of” or “to have a mass of.” As a result, there is often confusion regarding the difference between weight and mass. Weight is the force exerted on a body due to the local gravity field
19、and is measured in newtons. Mass is the amount of matter that a body contains and is measured in kilograms (kg). Newtons Second Law of Motion states: F = kma (1) For a particular reference frame (e.g. the Earth) the units can be chosen so that k = 1 and the formula then becomes: F = ma (2) where F i
20、s the force exerted on the body, in N; m is the mass of the body, in kg; a is the local acceleration due to gravity, in ms2. BS ISO 21006:2006vi As a consequence of Newtons second law, weight and mass can be directly related by writing Equation (2) as: w = mg (3) where w is the weight of the body, i
21、n N; m is the mass of the body, in kg; g is the local acceleration due to gravity, in ms2. BS ISO 21006:20061Internal combustion engines Engine weight (mass) declaration 1 Scope This International Standard specifies how to make a declaration of the engine weight (mass) for internal combustion engine
22、s. For the purposes of this International Standard, the word weight is used as the direct equivalent of the word mass. This International Standard applies to reciprocating internal combustion engines (spark-ignition or compression ignition engines) but excluding free piston engines, and rotary pisto
23、n engines. These engines may be naturally aspirated or pressure-charged, either by a mechanical pressure-charger or a turbo-charger. This International Standard applies to engines for the following: a) land, rail-traction and marine use; b) the propulsion of automotive vehicles; c) propelling (or po
24、wering) non-road mobile machinery; d) motorcycles; e) the propulsion of agricultural tractors and machines; f) the propulsion of earth-moving machinery as defined in ISO 6165; g) the propulsion of recreational or other small marine craft of hull length up to 24 m. This International Standard may be
25、applied to engines used to propel road-construction machines, industrial trucks and for other applications where no suitable International Standard for these engines exists. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated re
26、ferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6165:2001, Earth moving machinery Basic types Vocabulary ISO 15550:2002, Internal combustion engines Determination and method for the measurement of
27、 engine power General requirements BS ISO 21006:20062 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 15550 apply. 4 Symbols The symbol EW for engine weight (mass) (kg) applies. NOTE Other SI units may also be used, and the symbols and subscripts in
28、ISO 15550 apply. 5 Engine Weight (mass) Declaration The method used for determining engine weight (mass) is the responsibility of the engine manufacturer. The Engine Weight (mass) Declaration shall be made in either of two ways: a) The engine weight (mass) shall be the sum of the weights (masses) of
29、 all engine components and its installed additional auxiliaries less fluids, as provided to the customer. The engine weight (mass) shall be declared by indicating a reference to this International Standard as follows: EW (ISO 21006) = kg b) The engine weight (mass) shall be determined with an engine
30、 assembled for its power measurement test. Test bed equipment, fluids (i.e. oil, fuel, coolant) and parts to match the engine to its application (i.e. vehicle engine mounts) are excluded. The engine weight (mass) shall be declared by indicating a reference to this International Standard and the ISO
31、Satellite Standard according to which the engine was tested, as follows: EW (ISO 21006) = kg/ISO EXAMPLE An engine weight (mass) of 500 kg for vehicles with power measurement tests according to ISO 1585: EW (ISO 21006) = 500 kg/ISO 1585 Where there is no list for assembled equipment parts in the rel
32、evant satellite standard, (e.g. in ISO 3046-1), the manufacturer shall declare, in Table A.1, all components and auxiliaries fitted to the engine as tested, which are not specified as required in that satellite standard, and the total weight (mass) of the complete engine. Where there is a list for a
33、ssembled equipment parts in the relevant satellite standard, the manufacturer shall declare, in Table A.2, all components and auxiliaries fitted to the engine that are not specified as required in that satellite standard. If there are alternative parts possible for the same engine function (i.e. ste
34、el, aluminum or synthetic oil pan), the lightest parts are allowed for the weight (mass) determination. If the engine as delivered has a heavier part than when it was weighed, the additional weight (mass) for that part shall be declared in Table A.2. NOTE 1 In the case of verification of engine weig
35、ht (mass), a deviation of 5 % is normally allowed for production tolerance. NOTE 2 Further requirements are subject to agreement between the manufacturer and the customer. BS ISO 21006:20063Annex A (normative) Weight (mass) Declaration Table A.1 Component and/or auxiliary weight (mass) declaration C
36、omponent and/or auxiliary Weight (mass), kg Weight (mass) of core engine + Weight (mass) of complete engine = BS ISO 21006:20064 Table A.2 Additional component and/or auxiliary weight (mass) declaration Additional component and/or auxiliary Weight (mass), kg BS ISO 21006:20065Bibliography 1 ISO 31-3
37、:1992, Quantities and units Part 3: Mechanics 2 ISO 1585:1992, Road vehicles Engine test code Net power 3 ISO 2534:1998, Road vehicles Engine test code Gross power 4 ISO 3046-1:2002, Reciprocating internal combustion engines Performance Part 1: Declarations of power, fuel and lubricating oil consump
38、tions, and test methods Additional requirements for engines for general use 5 ISO 4106:2004, Motorcycles Engine test code Net power 6 ISO 8665:1994, Small craft Marine propulsion engines and systems Power measurements and declarations 7 ISO 9249:1997, Earth-moving machinery Engine test code Net powe
39、r 8 ISO 14396:2002, Reciprocating internal combustion engines Determination and method for the measurement of engine power Additional requirements for exhaust emission tests in accordance with ISO 8178 BS ISO 21006:2006BS ISO BSI389 Chiswick High RoadLondonW4 4AL21006:2006BSI British Standards Insti
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