<p>ISO 12251 specifies dimensional requirements for clamp mounted CR fuel injectors and their corresponding cylinder head features in diesel engines.</p>
<p>According to the injector nozzle capnut, the clamp mounted CR fuel injectors can be divided into two types:</p>
<p>a) Type A, where the nozzle capnut is straight (see Figure 4);</p>
<p>b) Type B, where the nozzle capnut is stepped (see Figure 5).</p>
<p>Each clamp mounted CR fuel injector type is subdivided by a series of different sizes.</p>
<p>NOTE This differentiation corresponds to the relationship between the two guide diameters of the clamp mounted CR fuel injectors.</p>
Registration number (WIID)
70132
Scope
<p>ISO 12251 specifies dimensional requirements for clamp mounted CR fuel injectors and their corresponding cylinder head features in diesel engines.</p>
<p>According to the injector nozzle capnut, the clamp mounted CR fuel injectors can be divided into two types:</p>
<p>a) Type A, where the nozzle capnut is straight (see Figure 4);</p>
<p>b) Type B, where the nozzle capnut is stepped (see Figure 5).</p>
<p>Each clamp mounted CR fuel injector type is subdivided by a series of different sizes.</p>
<p>NOTE This differentiation corresponds to the relationship between the two guide diameters of the clamp mounted CR fuel injectors.</p>
