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1. 发明专利

JP2012154309A Fuel injection nozzle 审中-公开
标题翻译：燃油喷射喷嘴
公开(公告)号：JP2012154309A
公开(公告)日：2012-08-16
申请号：JP2011016887
申请日：2011-01-28
申请人： Diesel United:Kk , Eiwa Giken:Kk , Mitsui O S K Lines Ltd , Okayama Univ , 国立大学法人岡山大学 , 株式会社商船三井 , 株式会社ディーゼルユナイテッド , 株式会社栄和技研
发明人： TOMITA EIJI , YAMAMOTO YOSHIRO , MORINAKA KAZUHIRO , NISHIDA YUJI , HANEDA MAKOTO , FUJII MIKI
IPC分类号： F02M61/10 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To contribute to the improvement of the combustion property and the exhaust property of fuel by accelerating atomization of the injected fuel by generating whirling stream in the inside of the nozzle body with simple structure and at low cost.SOLUTION: The fuel injection nozzle 1 has the nozzle body 4 formed with an injection hole 2 for injecting fuel at one end and having a fuel passage 3 for guiding fuel to the injection hole 2, and a needle 5 which is a shaft shape member inserted into the nozzle body 4 and which constitutes a valve part 7 opening and closing the fuel passage 3 by the reciprocating moving in an axial direction to the nozzle body 4 along with the nozzle body 4, the fuel passage 3 has a fuel reservoir part 8, a fuel supply passage 21 arranged an upstream side more than the fuel reservoir part 8 and guiding fuel toward an inserting direction side to the nozzle body 4 of the needle 5, and a direction changing passage part 22 arranged between the fuel reservoir 8 and the fuel supply passage 21, and formed in a direction along a plane perpendicular to the axial direction of the needle 5, and communicating in a direction displaced from the diameter direction of the needle 5 to the fuel reservoir part 8.
摘要翻译：要解决的问题为了通过以简单的结构和低成本在喷嘴体的内部产生旋转流来加速喷射燃料的雾化，有助于提高燃料的燃烧特性和排气性能。解决方案：燃料喷射喷嘴1具有喷嘴体4，喷嘴体4形成有用于在一端喷射燃料的喷射孔2，并且具有用于将燃料引导到喷射孔2的燃料通道3和作为轴形成部件插入到喷嘴体4中，并且构成阀部7，其通过与喷嘴体4一起沿着轴向与喷嘴体4往复运动而开闭燃料通路3，燃料通路3具有燃料储存器部分8，燃料供给通道21，其布置在比燃料储存部8更上游的上游侧，并且将燃料朝向针5的喷嘴体4的插入方向侧引导;以及方向改变通道部22，布置在燃料储存器8 和燃料供给通道21，并且沿着与针5的轴向垂直的平面的方向形成，并且沿从针5的直径方向偏移到燃料储存部8的方向连通。 OPYRIGHT：（C）2012，JPO＆INPIT

2. 发明专利

JP2014020339A Fuel injection nozzle 审中-公开
标题翻译：燃油喷射喷嘴
公开(公告)号：JP2014020339A
公开(公告)日：2014-02-03
申请号：JP2012162574
申请日：2012-07-23
申请人： Okayama Univ , 国立大学法人岡山大学 , Eiwa Giken:Kk , 株式会社栄和技研 , Mitsui O S K Lines Ltd , 株式会社商船三井 , Diesel United:Kk , 株式会社ディーゼルユナイテッド
发明人： TOMITA EIJI , YAMAMOTO YOSHIRO , MORINAKA KAZUHIRO , TACHIKAWA YASUJIRO , FUJII MIKI
IPC分类号： F02M61/18 , F02M61/10
摘要： PROBLEM TO BE SOLVED: To atomize fuel spray, facilitate processing for forming an injection hole, heighten diffusibility of spray, and improve combustion efficiency in a fuel injection nozzle.SOLUTION: The fuel injection nozzle comprises: a nozzle body 4 having an injection hole 2 injecting fuel and a fuel passage 3 introducing fuel to the injection hole 2; and a needle 5 that is a shaft-like member inserted in the nozzle body 4, and constitutes a valve section 7 for opening/closing the fuel passage 3 by reciprocating movement to the nozzle body 4 in an axial direction together with the nozzle body 4. The fuel passage 3 has: a fuel storage section 8 for forming a space holding the fuel around the needle 5 together with an outer periphery of the needle 5; a fuel supply passage section 21 provided on an upper stream side than the fuel storage section 8 and introducing the fuel in an insertion direction of the needle 5 to the nozzle body 4; and a direction conversion passage section 22 provided between the fuel storage section 8 and the fuel supply passage section 21, and communicated with the fuel storage section 8 in a direction displaced from a radial direction of the needle 5 when seen in the axial direction of the needle 5.
摘要翻译：要解决的问题：为了雾化燃料喷雾，促进形成喷射孔的加工，提高喷射的扩散性，并提高燃料喷嘴中的燃烧效率。解决方案：燃料喷射喷嘴包括：喷嘴体4，其具有喷射孔2 喷射燃料和将燃料引入喷射孔2的燃料通道3; 以及插入喷嘴体4中的轴状构件的针5，并且构成用于通过与喷嘴体4一起沿轴向向喷嘴体4往复运动而打开/关闭燃料通道3的阀部7 燃料通路3具有：燃料收容部8，其与针5的外周一起形成在针5周围保持燃料的空间; 燃料供给通道部分21，设置在燃料储存部分8的上游侧并将燃料沿针5的插入方向引导到喷嘴体4; 以及设置在燃料存储部8和燃料供给通道部21之间的方向转换通路部22，并且在从燃料收容部8的轴向观察时沿与针5的径向相反的方向与燃料收容部8连通针5。

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