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1. 发明申请

US20060138255A1 Injector 审中-公开
标题翻译：注射器
公开(公告)号：US20060138255A1
公开(公告)日：2006-06-29
申请号：US11314367
申请日：2005-12-22
申请人： Akira Nakatsu , Senta Tojo , Masayoshi Ito , Mitsuru Ueki
发明人： Akira Nakatsu , Senta Tojo , Masayoshi Ito , Mitsuru Ueki
IPC分类号： F02M63/00
CPC分类号： F02M63/0015 , F02M47/027 , F02M55/005 , F02M2200/16
摘要： A tip end surface of a valve body and a back end surface of an injection nozzle contact each other with pressure by being fastened using a retaining nut and thereby form a metal seal structure to achieve a metal seal. To increase a surface pressure in a seal surface by fastening axial force, conventional recesses around the central axis of a nozzle are replaced so that proximity of a high pressure fuel hole is secured as a seal surface. An outside recess is provided outside of the proximity of the high pressure fuel hole to link with an outer peripheral border of the metal seal structure. Alternatively, a contact surface functioning as a retaining seal surface is added outside of the outside recess to be apart from the proximity of the high pressure fuel hole.
摘要翻译：阀体的前端面和喷嘴的后端面通过使用保持螺母紧固而相互接触，从而形成金属密封结构以实现金属密封。为了通过紧固轴向力来增加密封表面中的表面压力，更换围绕喷嘴的中心轴线的常规凹槽，使得高压燃料孔的接近被确保为密封表面。外部凹部设置在高压燃料孔附近的外部，以与金属密封结构的外周边缘相连。或者，用作保持密封表面的接触表面被添加到外部凹部外部以与高压燃料孔的附近分开。

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