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公开(公告)号：US09599080B2
公开(公告)日：2017-03-21
申请号：US14380512
申请日：2013-02-07
发明人： Iichiro Seino , Eiji Kurata
CPC分类号： F02M55/005 , F02M55/02 , F02M2200/90 , F16L13/0209 , F16L13/08 , F16L41/084
摘要： Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D≦D1≦0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1≧0.06D.
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公开(公告)号：US20160123287A1
公开(公告)日：2016-05-05
申请号：US14996285
申请日：2016-01-15
发明人： Iichiro Seino , Eiji Kurata
CPC分类号： F02M55/005 , F02M55/02 , F02M2200/90 , F16L13/0209 , F16L13/08 , F16L41/084
摘要： Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D≦D1≦0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1≧0.06D.
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公开(公告)号：US09664163B2
公开(公告)日：2017-05-30
申请号：US14996285
申请日：2016-01-15
发明人： Iichiro Seino , Eiji Kurata
CPC分类号： F02M55/005 , F02M55/02 , F02M2200/90 , F16L13/0209 , F16L13/08 , F16L41/084
摘要： Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D≦D1≦0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1≧0.06D.
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4.发明申请公开(公告)号：US20150027413A1
公开(公告)日：2015-01-29
申请号：US14380512
申请日：2013-02-07
发明人： Iichiro Seino , Eiji Kurata
IPC分类号： F02M55/02
CPC分类号： F02M55/005 , F02M55/02 , F02M2200/90 , F16L13/0209 , F16L13/08 , F16L41/084
摘要： Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D≦D1≦0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1≧0.06D.
摘要翻译： 提供一种直接喷射发动机的高压燃料管的端子结构，其能够有效地防止管道和连接部件之间的钎焊部分的应力集中。 在连接头钎焊到燃料管的端部的用于直喷式发动机的高压燃料管的端子结构中，连续头的燃料管插入部分的燃料管的端部设置有 拉出部分，燃料管直径D的拉伸部分的外径D1满足0.8D＆lt; nlE; D1＆nlE; 0.9D，并且从外端直径D1的外径D1的长度L1沿管轴方向从 燃料管插入部分满足L1≥0.06D。
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