ISO 9102:1997
(Main)Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26 and 26.1
Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26 and 26.1
Moteurs diesels — Porte-injecteurs vissés, types 24, 25, 26 et 26.1
General Information
- Status
- Published
- Publication Date
- 24-Dec-1997
- Technical Committee
- ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
- Drafting Committee
- ISO/TC 22/SC 34/WG 2 - Injection equipment
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 08-Jan-2026
- Completion Date
- 10-Jan-2026
Relations
- Effective Date
- 15-Apr-2008
Overview
ISO 9102:1997 is an international standard developed by the International Organization for Standardization (ISO) that specifies dimensional requirements for screw-in injection nozzle holders used in diesel engines. This second edition standard covers types 24, 25, 26, and 26.1 nozzle holders, ensuring consistent design and interchangeability across road vehicle diesel engines. The document focuses primarily on the mounting dimensions of these nozzle holders, providing manufacturers and engine designers with clear guidelines to enhance compatibility and functionality in diesel engine injection systems.
Key Topics
Dimensional Specifications
ISO 9102 defines precise dimensional requirements and tolerances for screw-in injection nozzle holders:- Type 24 nozzle holders with integral heat shields.
- Types 25, 26, and 26.1 nozzle holders without heat shields.
Mounting and Compatibility
The standard ensures compatibility between injection nozzle holders and cylinder heads by outlining:- Thread pitch diameters and thread engagement requirements.
- Maximum and minimum dimensions for nozzle holder lengths and hexagon flats.
- Guidelines to minimize clearance for avoiding excess heat transfer.
Design Flexibility
While key dimensions and tolerances are standardized, some aspects such as fuel inlet and leak-off connection placement are left to the discretion of manufacturers depending on specific applications.Engineering and Manufacturing Collaboration
The standard highlights the importance of coordination between nozzle holder manufacturers and engine manufacturers, especially when addressing narrow mounting conditions or non-standard sizing.
Applications
Diesel Engine Manufacturing
Engine manufacturers use ISO 9102 to design cylinder heads and injection systems that accommodate standardized nozzle holders, ensuring reliable fuel injection and engine performance.Injection Equipment Production
Manufacturers of diesel fuel injectors and nozzle holders rely on the standard to produce components compatible with global diesel engines, facilitating aftermarket replacements and servicing.Quality Assurance and Interchangeability
Automotive and heavy equipment OEMs benefit from adhering to these standardized dimensions to maintain quality, reduce manufacturing errors, and ensure interoperability of fuel injection components.Road Vehicle Diesel Engines
The standard applies broadly across diesel internal combustion engines used in road vehicles, aiding in harmonizing component specifications worldwide.
Related Standards
ISO/TC 22 Subcommittee SC 7
The technical committee responsible for preparing ISO 9102 focuses on injection equipment and fuel filters used in road vehicles, intersecting with other relevant ISO standards for diesel engine components.ISO 9000 Series
Quality management standards complement ISO 9102 by helping organizations implement effective processes for manufacturing compliant diesel engine components.IEC Standards for Electrotechnical Components
Although ISO 9102 primarily covers mechanical components, it relates to IEC standards when integrated electromechanical diesel injection systems are involved.
Keywords: ISO 9102, screw-in injection nozzle holders, diesel engines, diesel fuel injectors, nozzle holder types 24 25 26 26.1, dimensional requirements, diesel engine components, fuel injection systems, road vehicles, engine manufacturing standards, injection nozzle compatibility
ISO 9102:1997 - Diesel engines -- Screw-in injection nozzle holders, types 24, 25, 26 and 26.1
ISO 9102:1997 - Moteurs diesels -- Porte-injecteurs vissés, types 24, 25, 26 et 26.1
Frequently Asked Questions
ISO 9102:1997 is a standard published by the International Organization for Standardization (ISO). Its full title is "Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26 and 26.1". This standard covers: Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26 and 26.1
Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26 and 26.1
ISO 9102:1997 is classified under the following ICS (International Classification for Standards) categories: 43.060.40 - Fuel systems. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 9102:1997 has the following relationships with other standards: It is inter standard links to ISO 9102:1990. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 9102:1997 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 9102
Second edition
1997-12-15
Diesel engines — Screw-in injection nozzle
holders, types 24, 25, 26 and 26.1
Moteurs diesels — Porte-injecteurs vissés, types 24, 25, 26 et 26.1
A
Reference number
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 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 in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
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.
International Standard ISO 9102 was prepared by Technical Committee
ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection equipment and
filters for use on road vehicles.
This second edition cancels and replaces the first edition (ISO 9102:1990),
which has been revised to include screw-in injection nozzle holders of
type 26.1.
© ISO 1997
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
©
INTERNATIONAL STANDARD ISO ISO 9102:1997(E)
Diesel engines — Screw-in injection nozzle holders,
types 24, 25, 26 and 26.1
1 Scope
This International Standard specifies dimensional requirements for the mounting of nozzle holders in diesel engines.
The location of the fuel inlet and leak-off connections are not defined since they vary according to the particular
application.
This International Standard applies to screw-in nozzle holders of types 24, 25, 26 and 26.1.
2 Dimensions and tolerances
2.1 Nozzle holder with integral heat shield, type 24
Nozzle holders of type 24 with integral head shield shall meet the requirements shown in figure 1 and table 1.
2.2 Nozzle holders without heat shield
2.2.1 Nozzle holder, type 25
Nozzle holders of type 25 without head shield shall meet the requirements shown in figure 2 and table 1.
2.2.2 Nozzle holders, types 26 and 26.1
Nozzle holders of types 26 and 26.1 without heat shield shall meet the requirements shown in figure 3 and table 1.
3 Other specifications
Dimensions and requirements not given in this International Standard are left to the discretion of the manufacturer.
©
ISO
Dimensions in millimetres
Key
1 Sealing washer
1) In cases where narrow mounting conditions exist, this shaft diameter ma
...
NORME ISO
INTERNATIONALE 9102
Deuxième édition
1997-12-15
Moteurs diesels — Porte-injecteurs vissés,
types 24, 25, 26 et 26.1
Diesel engines — Screw-in injection nozzle holders, types 24, 25, 26
and 26.1
A
Numéro de référence
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération
mondiale d'organismes nationaux de normalisation (comités membres de
l'ISO). L'élaboration des Normes internationales est en général confiée aux
comités techniques de l'ISO. Chaque comité membre intéressé par une
étude a le droit de faire partie du comité technique créé à cet effet. Les
organisations internationales, gouvernementales et non gouvernementales,
en liaison avec l'ISO participent également aux travaux. L'ISO collabore
étroitement avec la Commission électrotechnique internationale (CEI) en
ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptés par les comités techniques
sont soumis aux comités membres pour vote. Leur publication comme
Normes internationales requiert l'approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 9102 a été élaborée par le comité technique
ISO/TC 22, Véhicules routiers, sous-comité SC 7, Équipement d'injection
et filtres pour application aux véhicules routiers.
Cette deuxième édition annule et remplace la première édition
(ISO 9102:1990), qui a été révisée afin d'y inclure les porte-injecteurs
vissés du type 26.1.
© ISO 1997
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publi-
cation ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun pro-
cédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord
écrit de l'éditeur.
Organisation internationale de normalisation
Case postale 56 • CH-1211 Genève 20 • Suisse
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Imprimé en Suisse
ii
©
NORME INTERNATIONALE ISO ISO 9102:1997(F)
Moteurs diesels — Porte-injecteurs vissés, types 24, 25, 26
et 26.1
1 Domaine d'application
La présente Norme internationale prescrit les caractéristiques dimensionnelles nécessaires au montage de porte-
injecteurs dans les moteurs à combustion interne à allumage par compression (moteurs diesel).
L'emplacement des tubulures d'arrivée et de retour de combustible n'est pas défini, car il varie suivant le cas
d'emploi.
La présente Norme internationale est applicable aux porte-injecteurs vissés des types 24, 25, 26 et 26.1.
2 Dimensions et tolérances
2.1 Porte-injecteur vissé avec écran thermique intégral, type 24
Les dimensions et tolérances du porte-injecteur avec écran thermique intégral, type 24, sont données à la figure 1
et dans le tableau 1.
2.2 Porte-injecteurs sans écran thermique
2.2.1 Porte-injecteur vissé, type 25
Les dimensions et tolérances du porte-injecteur sans écran thermique, type 25, sont données à la figure 2 et dans
le tableau 1.
2.2.2 Porte-injecteurs vissés, types 26 et 26.1
Les dimensions et tolérances des porte-injecteurs sans écran thermique, types 26 et 26.1, sont données à la
figure 3 et dans le tableau 1.
3 Autres spécifications
Les dimensions et les exigences non prescrites dans la présente Norme internationale sont laissées au choix du
constructeur.
©
I
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