| 摘要 |
<p>PURPOSE: To reduce a stress peak and avoid notch effect by obtaining uniform pressure distribution on the end face of a notch receiving a conduit opening of a pressure valve holder. CONSTITUTION: A fuel injection pump for an internal combustion engine comprises a high-pressure camber, which is intermittently brought to high fuel pressure, and which communicates via a pressure line with an injection point of an engine, and a pressure valve 6 inserted into the pressure line. This pressure valve comprises a valve body 11 and a valve seat 12 onto which a valve member 13 is pressed by the force of a valve spring 15. The valve spring is located in a notch 16 of a pressure valve holder 7, which communicates with the injection line via an axial conduit. A transitional region leading for the diameter of the axial notch to the diameter of the conduit is embodied with a cone.</p> |
