ISO 7876-3-1993 Fuel injection equipment vocabulary part 3 unit injectors《燃油系统 词汇 第3部分 组合式喷射器 两种语言版》.pdf
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1、INTERNATIONAL STANDARD NORME INTERNATIONALE IS0 7876-3 First edition Premiere 6dition 1993-07-l 5 Fuel injection equipment - Vocabulary - Part 3: Unit injectors Equipement dinjection de combustible - Vocabulaire - Par-tie 3: Injecteurs-pompes Reference number Numkro de reference IS0 7875-3:1993(E/F)
2、 IS0 7876-3: 1993( E/F) Contents 1 Scope . 2 Normative references . 3 Main definition . 4 Components 5 General terms Annex A: Bibliography . Alphabetical indexes English 5 French . 6 Sommaire 1 Domaine dapplication 2 References normatives 3 Definition principale . 4 Composants 5 Termes generaux Anne
3、xe A: Bibliographie . Index alphab other aspects more general to fuel injectors may be found in IS0 7876-2. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the e
4、ditions indicated were valid. All standards are subject to revision, and parties to agreements based on this Inter- national Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of curr
5、ently valid International Standards. IS0 78761:1990, Fuel injection equipment - Vocabulary - Part 1: Fuel injection pumps. IS0 78762:1991, Fuel injection equipment - Vocabulary - Part 2: Fuel injectors. Equipement dinjection de combustible - Vocabulaire - Pat-tie 3: Injecteurs-pompes 1 Domaine dappl
6、ication La presente partie de IISO 7876 etablit un vocabulaire et des definitions relatifs aux injecteurs-pompes pour mo- teurs a allumage par compression (diesel) et a leurs com- posants. Elle est complementaire de IWO 2710tl. Les definitions contenues dans la presente partie de IISO 7876 sont spec
7、ifiques aux injecteurs-pompes. Les autres aspects dordre general relatif aux Porte-injecteurs complets de combustible sont definis dans IISO 78762. 2 Rbfkrences normatives Les normes suivantes contiennent des dispositions qui, par suite de la reference qui en est faite, constituent des dispositions
8、valables pour la presente pat-tie de IISO 7876. Au moment de la publication, les editions indiquees etaient en vigueur. Toute norme est sujette a revision et les parties prenantes des accords fond b) timing control; c) metering control. Possible forms of these features may be mechanical, hydraulic,
9、electrical or electronic. A full description of a unit injector (3.1) specifies all these features. EXAMPLE Mechanically actuated unit injector with electronic timing and metering control. 4 Components 4.1 tappet follower assembly: Component(s) that trans- mit(s) linear movement to the plunger from
10、external driving parts. 4.2 tappet head: Separate part of the tappet assembly (4.1) that contacts the external driving parts. 4.3 thrust pad: That part of the tappet assembly (4.1) which is positioned between the tappet head (4.2) and the plunger. 4.4 tappet body: That part of the tappet assembly (4
11、.1) which slides in contact with the tappet guide (4.5). 4.5 tappet guide: Component or feature of the tappet body (4.4) or that part of the unit injector body (4.8) that guides the movement of the tappet or tappet assembly (4.1). 4.6 tappet retainer: Component that retains the tappet assembly (4.1)
12、 in its assembled configuration when the unit injector (3.1) is not mounted in the engine. 4.7 return spring: Component(s) that maintain(s) contact of the tappet with the external driving parts and return(s) the plunger to the beginning of its stroke. 3.1 injecteur-pompe: Appareil combinant les cara
13、ctkris- tiques dune pompe monocylindre et dun Porte-injecteur de combustible complet en un seul ensemble par lequel un volume dose de combustible est inject6 sous haute pression dans la chambre de combustion. NOTE 1 Les injecteurs-pompes (3.1) se caractbrisent par les trois principaux dispositifs su
14、ivants: a) Ientrainement (source dbnergie); b) le contrBle de Iavance; c) le contrdle du dosage. Les exkcutions possibles de ces dispositifs sont mkanique, hydraulique, Blectrique ou Blectronique. Une description compkte dun injecteur-pompe (3.1) devra spkcifier tous les dispositifs ci- dessus. EXEM
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