(EN) A fuel injection pump which can be manufactured without an increase in the manufacturing cost and which is configured so that the sealing performance of an electromagnetic spill valve can be maintained with minimum maintenance cost. A fuel injection valve configured in such a manner that an electromagnetic spill valve (20) comprises: a housing (21) in which an insert piece insertion hole (21e) is formed; an insert piece (22) which is formed in a substantially hollow cylindrical shape having a valve seat (22b) on the inner peripheral surface thereof and which is removably mounted in the insert piece insertion hole (21e); a spill valve body (23) which is formed in a substantially solid cylindrical shape having on the outer peripheral surface thereof a seal surface (23b) facing the valve seat (22b) and which is slidably inserted in the insert piece (22) so that the seal surface (23b) is seated on the valve seat (22b); a stopper (24) which can make contact with the spill valve body (23) when the spill valve body (23) is slid to the left side of the insert piece (22) in the axial direction; a solenoid (25) which can slide the spill valve body (23) to the right side in the axial direction; and a spill valve spring (23e) which is the pressing member for pressing the spill valve body (23) to the left side in the axial direction.
(ZH)
本发明以提供能不增大生产成本地，以最小限度的维护成本维持电磁溢流阀的密封性能的燃料喷射泵为目的，提供如下的燃料喷射泵，该燃料喷射泵的电磁溢流阀（20）包括：外壳（21），其形成有内插件内装孔（21e）；内插件（22），其形成为在内周面具有阀座（22b）的大致圆筒状，该内插件（22）装卸自由地内装在内插件内装孔（21e）中；溢流阀芯（23），其形成为在外周面上具有与阀座（22b）相对的密封面（23b）的大致圆柱状，该溢流阀芯（23）以密封面（23b）落位于阀座（22b）的方式滑动自由地插入在内插件（22）中；止挡部（24），该止挡部（24）能在溢流阀芯（23）向内插件（22）的轴线方向左侧滑动时与溢流阀芯（23）抵接；电磁元件（25），其能使溢流阀芯（23）向轴线方向右侧滑动；溢流阀弹簧（23e），其是向轴线方向左侧对溢流阀芯（23）施力的施力构件。
