Crown ball control valve of high-pressure common-rail oil injector
A high-pressure common rail and fuel injector technology, used in machines/engines, fuel injection devices, engine components, etc., can solve the problems of unreliable sealing, small size of the inner concave spherical surface, and high precision, and improve high-pressure sealing and processing. The effect of low difficulty and high machining accuracy
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Embodiment 1
[0035] Such as figure 2 and Figure 4 Shown is a schematic diagram of an embodiment of a high-pressure common rail injector crown ball control valve provided by the present invention, which includes an armature 1, a control rod 2, a valve body 3, a ball seat 4, and a valve seat 6. The armature 1 is set At the upper end of the control rod 2, the valve body 3 is arranged on the valve seat 6, and the control rod 2 extends into the valve body 3 through the guide hole 3-2, and it also includes a crown ball 5-2, which is a belt There is a crown ball with plane B5-1, the crown ball 5-2 is set between the control rod 2 and the oil outlet orifice 8 of the valve seat 6 and the crown ball 5-2 is close to the high-precision conical surface 9 of the valve seat 6, The lower end of the control rod 2 is provided with a groove structure with an opening facing downward. The cross section of the groove structure is circular and the central axis of the groove structure coincides with the centra...
Embodiment 2
[0043] Such as Figure 5 and Figure 6 Shown is a schematic diagram of an embodiment of a high-pressure common rail injector crown ball control valve provided by the present invention, which includes an armature 1, a control rod 2, a valve body 3, a ball seat 4, and a valve seat 6. The armature 1 is set At the upper end of the control rod 2, the valve body 3 is arranged on the valve seat 6, and the control rod 2 extends into the valve body 3 through the guide hole 3-2, and it also includes a crown ball 5-2, which is a belt There is a crown ball with plane B5-1, the crown ball 5-2 is set between the control rod 2 and the oil outlet orifice 8 of the valve seat 6 and the crown ball 5-2 is close to the high-precision conical surface 9 of the valve seat 6, The lower end of the control rod 2 is provided with a groove structure with an opening facing downwards. The cross section of the groove structure is circular and the central axis of the groove structure coincides with the centr...
Embodiment 3
[0048] Such as Figure 7 and Figure 8 Shown is a schematic diagram of an embodiment of a high-pressure common rail injector crown ball control valve provided by the present invention, which includes an armature 1, a control rod 2, a valve body 3, a ball seat 4, and a valve seat 6. The armature 1 is set At the upper end of the control rod 2, the valve body 3 is arranged on the valve seat 6, and the control rod 2 extends into the valve body 3 through the guide hole 3-2, and it also includes a crown ball 5-2, which is a belt There is a crown ball with plane B5-1, the crown ball 5-2 is set between the control rod 2 and the oil outlet orifice 8 of the valve seat 6 and the crown ball 5-2 is close to the high-precision conical surface 9 of the valve seat 6, The lower end of the control rod 2 is provided with a groove structure with an opening facing downward. The cross section of the groove structure is circular and the central axis of the groove structure coincides with the centra...
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Abstract
Description
Claims
Application Information
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