Diesel engines — Clamp mounted CR fuel injectors — Mounting dimensions

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

10-04-2017

Publisher

International Organization for Standardization

ISO 12251 specifies dimensional requirements for clamp mounted CR fuel injectors and their corresponding cylinder head features in diesel engines.

According to the injector nozzle capnut, the clamp mounted CR fuel injectors can be divided into two types:

a) Type A, where the nozzle capnut is straight (see Figure 4);

b) Type B, where the nozzle capnut is stepped (see Figure 5).

Each clamp mounted CR fuel injector type is subdivided by a series of different sizes.

NOTE This differentiation corresponds to the relationship between the two guide diameters of the clamp mounted CR fuel injectors.

Committee	ISO/TC 22/SC 34
DevelopmentNote	Supersedes ISO/DIS 12251. (10/2017)
DocumentType	Standard
Pages	11
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO 12251:2011

Standards	Relationship
BS ISO 12251:2017	Identical

ISO 1302:2002	Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation
ISO 13296:2016	Diesel engines — High-pressure fuel injection pipe assemblies — General requirements and dimensions
ISO 2974:2016	Diesel engines 60 female cones for high-pressure fuel injection components