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1. 发明专利

DE4020188C2 未知
公开(公告)号：DE4020188C2
公开(公告)日：2001-02-22
申请号：DE4020188
申请日：1990-06-25
申请人： DENSO CORP
发明人： SUGIYAMA KATUYA , KUROMIYA AKIO , SUGIYAMA SATOSI , INOUE YUJI , TAKEDA HIDETO , SUGIURA SHINJI
IPC分类号： F02M51/06 , H01F7/16 , F16K31/02 , B05B1/30
摘要： An electromagnetic fuel injection valve for an internal combustion engine having a housing which houses a valve, a needle valve element, a movable core, an electromagnetic actuator and spacer. The housing is made of magnetic material forms a magnetic flux circuit with the electromagnetic actuator and the movable core. The cylindrical housing is made of a plate material which comprises a portion facing the movable core, and the portion has a substantially minimum thickness to actuate the movable core.

2. 发明专利

JP2007285246A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2007285246A
公开(公告)日：2007-11-01
申请号：JP2006115457
申请日：2006-04-19
申请人： Denso Corp , 株式会社デンソー
发明人： MATSUZAKA NOBORU , KUROMIYA AKIO , SUMIYA HIROSHI , YAMASHITA YOSHINORI
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve materializing miniaturization of a core while securing wear resistance, corrosion resistance and response of intermittence of fuel injection.
SOLUTION: The valve is provided with a movable core 30 reciprocating together with a valve member intermitting fuel injection, a fixed core 44 forming a magnetic circuit together with the movable core 30, and a coil generating magnetic attraction force between the movable core 30 and the fixed core 44 by excitation. Fe-Co alloy containing cobalt material is employed for material of the movable core 30 and the fixed core 44. Corrosion resistant plating layers 302, 442 are formed on whole surface of the both cores 30, 44. Hard plating layer 303, 443 are formed on a movable side contact surface 301 of the movable core 30 and a fixed side contact surface 441 of the fixed core 44.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种实现核心小型化的燃料喷射阀，同时确保耐磨性，耐腐蚀性和燃料喷射间歇性的响应。解决方案：阀设置有与间隔燃料喷射的阀构件一起往复运动的可动芯30，与可动铁芯30一起形成磁路的固定铁心44以及在可动铁心之间产生磁力的线圈 30和固定芯44通过激励。含有钴材料的Fe-Co合金用于可动铁芯30和固定铁芯44的材料。在两个铁芯30,44的整个表面上形成耐腐蚀电镀层302,442。形成硬镀层303,443 在可动芯30的可动侧接触表面301和固定芯44的固定侧接触表面441上。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008111396A Manufacturing method of high-pressure fuel pump 审中-公开
标题翻译：高压燃油泵的制造方法
公开(公告)号：JP2008111396A
公开(公告)日：2008-05-15
申请号：JP2006295600
申请日：2006-10-31
申请人： Denso Corp , 株式会社デンソー
发明人： MATSUZAKA NOBORU , KUROMIYA AKIO , INOUE HIROSHI , HATANO TOMOYUKI , IWASE KOJI
IPC分类号： F02M59/44 , F02M59/10
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a high-pressure fuel pump equipped with a pump housing that reduces the number of parts and assembling man-hour and has high strength of a slide part and a high-pressure part and high reliability.
SOLUTION: The housing base material of the pump housing casted by lost-wax process is placed in argon atmosphere of 1200°C and 1000 atm for four hours so that the housing base material is subjected to HIP (High Isostatic Pressing) processing. After the HIP processing, a screw thread is cut and processed with a cutting tool or the like in a part of the housing base material where it is screw-joined with another part. The housing base material is then quenched by heat-treating (QT) the housing base material and the hardness of the housing base material is increased. The screw part of the housing base material to be screw-joined with the other part is then annealed to reduce the hardness of the screw part and a cylinder inner peripheral surface of the housing base material is ground with a grinding tool. The other part is assembled to the pump housing thus formed to manufacture the high-pressure pump.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种配备有泵壳体的高压燃料泵的制造方法，其减少部件数量和组装工时，并且具有高的滑动部件和高压部件的强度高可靠性。
解决方案：通过失蜡处理铸造的泵壳体的壳体基材置于1200℃和1000atm的氩气氛中4小时，使壳体基材经受HIP（高等静压）加工。在HIP处理之后，在壳体基材的与另一部分螺纹连接的部分中用切削工具等将螺纹切割并加工。然后通过壳体基材的热处理（QT）来淬火外壳基材，并且增加壳体基材的硬度。然后将与另一部分螺纹连接的壳体基材的螺纹部分退火以降低螺钉部分的硬度，并且用研磨工具研磨壳体基材的气缸内周面。另一部分组装到如此形成的泵壳体上以制造高压泵。版权所有（C）2008，JPO＆INPIT

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