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Homepage>BS Standards>43 ROAD VEHICLE ENGINEERING>43.060 Internal combustion engines for road vehicles>43.060.40 Fuel systems>BS ISO 12251:2017 Diesel engines. Clamp mounted CR fuel injectors. Mounting dimensions
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immediate downloadReleased: 2017-10-13
BS ISO 12251:2017 Diesel engines. Clamp mounted CR fuel injectors. Mounting dimensions

BS ISO 12251:2017

Diesel engines. Clamp mounted CR fuel injectors. Mounting dimensions

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Standard number:BS ISO 12251:2017
Pages:18
Released:2017-10-13
ISBN:978 0 580 92509 2
Status:Standard
DESCRIPTION

BS ISO 12251:2017


This standard BS ISO 12251:2017 Diesel engines. Clamp mounted CR fuel injectors. Mounting dimensions is classified in these ICS categories:
  • 43.060.40 Fuel systems

This document 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:

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

  2. 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.