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1. 发明授权

US5961304A Injection pump for diesel-cycle internal combustion engines 失效
标题翻译：柴油循环内燃机喷油泵
公开(公告)号：US5961304A
公开(公告)日：1999-10-05
申请号：US84131
申请日：1998-05-26
申请人： Gino Parenti , Umberto Verza
发明人： Gino Parenti , Umberto Verza
IPC分类号： F02M45/06 , F02M59/26
CPC分类号： F02M59/265 , F02M45/066
摘要： An injection pump for diesel-cycle internal combustion engines includes a casing (1), a cylinder (6) within the casing and communicates, via at least one radial aperture (51), with a fuel intake chamber (3), and a piston (7) sealedly slidable within the cylinder and which, by external command, can also rotate about its axis to assume different angular orientations about a reference plane. In its jacket, a helical groove (72) opens into an axial groove (71), wherein the top, or roof, of the piston (7) is connected via a hole (77) to two channels (178, 179) provided at different levels in the piston jacket. The first (178) is in an intermediate position between the top of the piston and highest part of the groove (72) and during the reciprocating movement of the piston (7) faces a first radial aperture (52) provided in the cylinder and communicates with the fuel intake chamber (3), the second (179) is at a distance from the top of the piston such that, when in the top dead center position, it mates with a radial aperture (53) provided in the cylinder and communicates with the fuel intake chamber (3).
摘要翻译：用于柴油循环内燃机的喷射泵包括壳体（1），壳体内的气缸（6），并且经由至少一个径向孔（51）与燃料进气室（3）和活塞（7），其在所述气缸内可密封地滑动，并且通过外部命令也可围绕其轴线旋转以围绕参考平面呈现不同的角度取向。在其护套中，螺旋槽（72）通向轴向凹槽（71），其中活塞（7）的顶部或顶部经由孔（77）连接到两个通道（178,179）不同水平的活塞外套。第一（178）位于活塞的顶部和凹槽（72）的最高部分之间的中间位置，并且在活塞（7）的往复运动期间面向设置在气缸中的第一径向孔（52）并且连通与燃料吸入室（3）相连，第二（179）与活塞的顶部距离一定距离，使得当在上止点位置时，它与设置在气缸中的径向孔（53）配合，并且连通与燃料进入室（3）。

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