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1. 发明申请

US20050067512A1 Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：US20050067512A1
公开(公告)日：2005-03-31
申请号：US10495566
申请日：2001-11-16
申请人： Syuichi Shimizu , Arata Kagiyama , Kenichi Gunji
发明人： Syuichi Shimizu , Arata Kagiyama , Kenichi Gunji
IPC分类号： F02M21/02 , F02M51/06 , F02M61/16 , F02M63/00 , F02M69/04 , B05B1/30
CPC分类号： F02M21/0266 , F02D19/027 , F02M21/0254 , F02M21/0296 , F02M51/0667 , F02M51/0671 , F02M51/0675 , F02M61/166 , F02M61/168 , F02M69/044 , F02M2200/505 , Y02T10/32
摘要： A nozzle body with fuel injection holes, a valve guide, a valve body, a movable element and a stopper are provided by low-temperature nitriding treatment at a temperature of 350 through 480° C. A guide sleeve for guiding the movement of a movable element is press-fitted on the inner periphery of the tip of the stationary core, and the guide sleeve is made of a nonmagnetic member of high hardness and provided with a hard coating. A annular-chip valve guide and guide holder are arranged one on top of the other in the nozzle body. This guide holder is composed of a metallic material not provided with nitriding treatment. This guide holder is subjected to plastic deformation in the nozzle body by the pressure from above, whereby the guide holder is pressure-bonded on the inner periphery of the nozzle body, and the valve guide is secured by the guide holder.
摘要翻译：通过在350〜480℃的温度下进行低温氮化处理，提供具有燃料喷射孔，阀导向件，阀体，可动元件和止动件的喷嘴体。用于引导可动元件被压配合在固定芯的尖端的内周上，并且引导套筒由高硬度的非磁性构件制成，并且设置有硬涂层。一个环形片导阀和导向架一个在喷嘴体内一个放置在另一个的上面。该导向架由不具有氮化处理的金属材料构成。该引导保持器通过上述的压力在喷嘴体中受到塑性变形，由此引导保持器压接在喷嘴体的内周上，并且导阀保持器固定。

2. 发明授权

US07874070B2 Injection valve and method of making orifice 有权
标题翻译：注射阀和制孔方法
公开(公告)号：US07874070B2
公开(公告)日：2011-01-25
申请号：US11519115
申请日：2006-09-12
申请人： Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
发明人： Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
IPC分类号： B21K1/22
CPC分类号： B21J5/10 , B21J9/04 , F02M61/12 , F02M61/162 , F02M61/168 , F02M61/1853 , Y10T29/49298
摘要： An injection valve has a nozzle body, a valve needle positioned in the nozzle body, an actuator for actuating the valve needle, and an orifice plate fixed at an end of the nozzle body. The orifice plate has a valve seat for cooperating with the valve needle and an orifice for injecting a fluid. The orifice plate is provided with a projection having a convex-curved surface on an orifice outlet side of the orifice plate. A flat surface portion is formed in the area of the convex-curved surface, and the outlet of the orifice is located in the flat surface portion.
摘要翻译：喷射阀具有喷嘴体，位于喷嘴主体中的阀针，用于致动阀针的致动器和固定在喷嘴体端部的孔板。孔板具有用于与阀针配合的阀座和用于注入流体的孔口。孔板设置有在孔板的孔出口侧具有凸曲面的突起。平面部形成在凸曲面的区域中，孔的出口位于平面部。

3. 发明申请

US20110011954A1 Fuel Injection Valve and Machining Method for Nozzle 有权
标题翻译：燃油喷射阀和喷嘴加工方法
公开(公告)号：US20110011954A1
公开(公告)日：2011-01-20
申请号：US12918045
申请日：2009-06-26
申请人： Kenichi Gunji , Masato Higuma
发明人： Kenichi Gunji , Masato Higuma
IPC分类号： F02M43/00
CPC分类号： F02M61/1846 , F02M61/168 , F02M61/1806 , F02M2200/8069 , Y10T29/49433
摘要： A fuel injection valve with reduced adhesion of deposits to a fuel injecting portion and superior in durability is provided. Also provided is a method for machining multi-orifice type fuel injecting portions easily, less expensively, in good surface roughness, in high productivity, and with few variations in shape, accuracy and surface roughness, using inexpensive equipment. The surface roughness of fuel injecting portions comprising orifices and apertures is made Rz 2 μm or less. Apertures are formed by press working so as to each have a plastic-worked surface of Rz 0.2 μm or less in surface roughness and then orifices are formed in the bottoms of the apertures so as to have a plastic-worked surface of Rz 0.2 μm or less in surface roughness. Further, when abrasion resistance of the nozzle is required, the fuel injecting portions are finished to a surface roughness of Rz 2 μm by quenching.
摘要翻译：提供了一种燃料喷射阀，其具有降低的沉积物对燃料喷射部分的粘附并且具有优异的耐久性。还提供了使用廉价的设备，以高生产率容易地，较不昂贵地加工多孔型燃料喷射部分并且形状，精度和表面粗糙度的变化很小的方法。包括孔和孔的燃料喷射部的表面粗糙度为Rz2μm以下。通过冲压加工形成孔径，使其各自具有表面粗糙度为Rz0.2μm以下的塑性加工表面，然后在孔的底部形成孔，以具有Rz0.2μm的塑性加工表面或表面粗糙度较小。此外，当需要喷嘴的耐磨性时，通过淬火将燃料喷射部分精加工成Rz2μm的表面粗糙度。

4. 发明申请

US20070057093A1 Injection valve and method of making orifice 有权
标题翻译：注射阀和制孔方法
公开(公告)号：US20070057093A1
公开(公告)日：2007-03-15
申请号：US11519115
申请日：2006-09-12
申请人： Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
发明人： Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
IPC分类号： F02M61/00
CPC分类号： B21J5/10 , B21J9/04 , F02M61/12 , F02M61/162 , F02M61/168 , F02M61/1853 , Y10T29/49298
摘要： An injection valve has a nozzle body, a valve needle positioned in the nozzle body, an actuator for actuating the valve needle, and an orifice plate fixed at an end of the nozzle body. The orifice plate has a valve seat for cooperate with the valve needle and an orifice for injecting a fluid. The orifice plate is provided with a projection having a convex-curved surface on an orifice outlet side of the orifice plate. A flat surface portion is formed in the area of the convex-curved surface, and the outlet of the orifice is located in the flat surface portion.
摘要翻译：喷射阀具有喷嘴体，位于喷嘴主体中的阀针，用于致动阀针的致动器和固定在喷嘴体端部的孔板。孔板具有用于与阀针配合的阀座和用于喷射流体的孔。孔板设置有在孔板的孔出口侧具有凸曲面的突起。平面部形成在凸曲面的区域中，孔的出口位于平面部。

5. 发明授权

US08888022B2 Fuel injection valve and method for coupling two components together 有权
公开(公告)号：US08888022B2
公开(公告)日：2014-11-18
申请号：US13495136
申请日：2012-06-13
申请人： Kenichi Gunji , Masato Higuma
发明人： Kenichi Gunji , Masato Higuma
IPC分类号： B05B1/30 , B05B1/34 , F02M51/00 , F02M61/10 , F02M61/00 , F02M61/16 , F02M61/18 , F02M61/12 , F02M51/06
CPC分类号： F02M61/168 , F02M51/0671 , F02M61/12 , F02M61/1806 , F02M61/1873 , F02M61/188 , F02M2200/16 , F02M2200/8053 , F02M2200/8061 , F02M2200/8084 , F02M2200/8092 , F02M2200/90 , Y10T29/49826
摘要： There is provided a coupling process whereby two components can be coupled together at high positional precision regardless of precision of a single component. A softer component 17 of two components 15, 17 to be coupled together is subjected to shearing by a corner 15c of a harder component 15 while respective parts of the two components 15, 17, positioning of the respective parts being required, are kept as-positioned state with the use of a mandrel 31, and a side face of the corner 15c is fitted to a sheared surface 17c of the softer component 17 during shearing in progress, subsequently coupling the two components 15, 17 together at a fitting surface by plastic coupling, press-fitting, or welding.

6. 发明授权

US06286769B1 Method of coaxially connecting precision parts comprising a plurality of members, method of assembling fuel injection nozzle, and fuel injection nozzle 失效
标题翻译：将包括多个构件的精密部件同轴连接的方法，组装燃料喷射喷嘴的方法和燃料喷射喷嘴
公开(公告)号：US06286769B1
公开(公告)日：2001-09-11
申请号：US09486227
申请日：2000-02-24
申请人： Kenichi Gunji , Yoshiyuki Tanabe
发明人： Kenichi Gunji , Yoshiyuki Tanabe
IPC分类号： F02M5100
CPC分类号： F02M51/0675 , B23P11/00 , B23P19/02 , F02M61/12 , F02M61/162 , F02M61/168 , F02M2200/8061 , Y10T29/49433
摘要： According to the present invention, a swirler and a plate are fitted into the inside diameter portion of a nozzle of a fuel injection valve so as to hold the swirler relative to a seat portion of the nozzle, centering between the seat portion of the nozzle and the inside diameter portion of the swirler by a positioning pin, and the plate is caused to plastic flow locally to connect and fix the nozzle, the swirler and the plate whereby maintaining the coaxial degree after connection of parts without influence of accuracy of an individual part of parts of the nozzle of the fuel injection valve.
摘要翻译：根据本发明，旋流器和板装配在燃料喷射阀的喷嘴的内径部分中，以便相对于喷嘴的座部保持旋流器，以喷嘴的座部和通过定位销使旋流器的内径部分局部地引起塑性流动，以连接和固定喷嘴，旋流器和板，从而在部件连接之后保持同轴度而不影响单个部件的精度的燃料喷射阀的喷嘴的部分。

7. 发明授权

US6032879A Fuel injector for use in internal combustion engine 失效
标题翻译：燃油喷射器用于内燃机
公开(公告)号：US6032879A
公开(公告)日：2000-03-07
申请号：US8599
申请日：1998-01-16
申请人： Yasunaga Hamada , Hideo Tatsumi , Kenichi Gunji , Yukihiro Yoshinari
发明人： Yasunaga Hamada , Hideo Tatsumi , Kenichi Gunji , Yukihiro Yoshinari
IPC分类号： F02M51/06
CPC分类号： F02M51/0625 , F02M51/0614 , F02M51/0664 , F02M51/0667 , F02M51/0682
摘要： When an electromagnetic coil receives an electric supply, a stationary core, a yoke, and a movable core form a magnetic circuit. The movable core is attracted to a side of the stationary core against the force provided by a return spring member. A fuel passage for injection of fuel is then opened. Axial direction stepwise differences are formed on the movable core. One end face of the stationary core opposes the stepwise difference through a first gap. A projection portion of the yoke is provided toward an inner side of the yoke. This projection portion opposes a position of a side to provide an axial direction magnetic attraction through a second gap. By the provision of the first and second gaps, plural axial direction magnetic attraction gaps are formed and become a part of the magnetic circuit. By increasing a magnetic attraction efficiency of the movable core, an improvement in performance of a fuel injector and a fuel injector having a compact size and a light weight structure can be attained.
摘要翻译：当电磁线圈接收电源时，固定铁芯，磁轭和可动铁芯形成磁路。可动芯被克服由复位弹簧构件提供的力吸引到固定铁芯的一侧。然后打开用于喷射燃料的燃料通道。在可动铁芯上形成轴向逐步的差异。固定芯的一个端面通过第一间隙与阶梯差相对。轭架的突出部朝向轭架的内侧设置。该突出部分与一侧的位置相对，以通过第二间隙提供轴向磁吸引。通过设置第一和第二间隙，形成多个轴向磁吸引间隙并成为磁路的一部分。通过提高可动铁心的磁吸引效率，可以实现具有小型化和轻质结构的燃料喷射器和燃料喷射器的性能的提高。

8. 发明授权

US08360338B2 Fuel injection valve and machining method for nozzle 有权
标题翻译：燃油喷射阀和喷嘴加工方法
公开(公告)号：US08360338B2
公开(公告)日：2013-01-29
申请号：US12918045
申请日：2009-06-26
申请人： Kenichi Gunji , Masato Higuma
发明人： Kenichi Gunji , Masato Higuma
IPC分类号： F02D1/06
CPC分类号： F02M61/1846 , F02M61/168 , F02M61/1806 , F02M2200/8069 , Y10T29/49433
摘要： A fuel injection valve with reduced adhesion of deposits to a fuel injecting portion and superior in durability is provided. Also provided is a method for machining multi-orifice type fuel injecting portions easily, less expensively, in good surface roughness, in high productivity, and with few variations in shape, accuracy and surface roughness, using inexpensive equipment. The surface roughness of fuel injecting portions comprising orifices and apertures is made Rz 2 μm or less. Apertures are formed by press working so as to each have a plastic-worked surface of Rz 0.2 μm or less in surface roughness and then orifices are formed in the bottoms of the apertures so as to have a plastic-worked surface of Rz 0.2 μm or less in surface roughness. Further, when abrasion resistance of the nozzle is required, the fuel injecting portions are finished to a surface roughness of Rz 2 μm by quenching.
摘要翻译：提供了一种燃料喷射阀，其具有降低的沉积物对燃料喷射部分的粘附并且具有优异的耐久性。还提供了使用廉价的设备，以高生产率容易地，较不昂贵地加工多孔型燃料喷射部分并且形状，精度和表面粗糙度的变化很小的方法。包括孔和孔的燃料喷射部的表面粗糙度为Rz2μm以下。通过冲压加工形成孔径，使其各自具有表面粗糙度为Rz0.2μm以下的塑性加工表面，然后在孔的底部形成孔，以具有Rz0.2μm的塑性加工表面或表面粗糙度较小。此外，当需要喷嘴的耐磨性时，通过淬火将燃料喷射部分精加工成Rz2μm的表面粗糙度。

9. 发明授权

US08016214B2 Fuel injection valve and method for forming orifice thereof 有权
标题翻译：燃油喷射阀及其孔口的形成方法
公开(公告)号：US08016214B2
公开(公告)日：2011-09-13
申请号：US12194221
申请日：2008-08-19
申请人： Masato Higuma , Kenichi Gunji , Keiji Kawahara , Atsushi Sekine
发明人： Masato Higuma , Kenichi Gunji , Keiji Kawahara , Atsushi Sekine
IPC分类号： F02M61/00
CPC分类号： B21K1/20 , F02M51/0671 , F02M61/1813 , Y10T29/49405
摘要： A fuel injection valve comprises a convex portion prominently formed on an outer end surface of a nozzle body, stepped recesses each of which has plural steps formed by press forming on the convex portion, and multi orifices as fuel nozzle holes formed by press forming so that an outlet of each of the orifices is located at a bottom face of each of the stepped recesses. Furthermore, the fuel injection valve has plural sets each of which comprises one of the stepped recesses and the relevant orifice, the orifices incline to each other, and a step on a downstream side in each of the stepped recesses has a larger diameter than a step on an upstream side thereof.
摘要翻译：燃料喷射阀包括突出地形成在喷嘴体的外端表面上的凸部，通过在凸部上压制成形而形成多个台阶的台阶凹部，以及作为通过冲压成形形成的燃料喷嘴孔的多个孔，每个孔口的出口位于每个阶梯式凹槽的底面。此外，燃料喷射阀具有多个组，每组具有阶梯状凹部和相关孔中的一个，所述孔彼此倾斜，并且每个阶梯形凹部中的下游侧的台阶的直径比步骤在其上游侧。

10. 发明申请

US20100229385A1 Method of Processing Orifice 有权
标题翻译：加工孔的方法
公开(公告)号：US20100229385A1
公开(公告)日：2010-09-16
申请号：US12708261
申请日：2010-02-18
申请人： Masato HIGUMA , Kenichi Gunji , Tsuneyoshi Inoue , Yasuyuki Tanaka , Hideki Fukushima
发明人： Masato HIGUMA , Kenichi Gunji , Tsuneyoshi Inoue , Yasuyuki Tanaka , Hideki Fukushima
IPC分类号： B21K1/24 , B26F1/14 , B23Q3/04
CPC分类号： B21J5/10 , B21J9/00 , B21K1/24 , B23P15/16 , F02M61/168 , F02M61/1833 , F02M2200/8069 , Y10T29/49298 , Y10T29/49409 , Y10T29/49426 , Y10T29/49432 , Y10T83/6667 , Y10T83/9428 , Y10T408/03
摘要： Disclosed herein is a method for processing an orifice capable of processing recessed portions and orifices, each having a unique hole diameter different from each other, to high positioning accuracy and in a short time.A press includes: a B-axis angle indexing device 3 disposed on a base 2b, the B-axis angle indexing device 3 including a table B; an A-axis angle indexing device 25 disposed on the table B, the A-axis angle indexing device 25 including a table A; a chuck 32 disposed on the table A, the chuck 32 for holding a work; a base Z 6 disposed on a base, the base Z 6 being operable in an axis Z-direction; a base X 8 disposed on the base Z, the base X 8 being operable in an axis X-direction; a punch holding portion 13 disposed on the base X, the punch holding portion 13 being operable vertically in an axis Y-direction; and a plurality of punches 19, 22 held on the punch holding portion in parallel with the axis Z. The press is used to perform a pressing cycle at a desired position by changing a posture of the work and moving the punch in the Z-direction continuously using punches having different leading end diameters and shapes with the work held in the chuck.
摘要翻译：这里公开了一种能够处理具有彼此不同的独特孔直径的凹部和孔的孔的方法，以高的定位精度和短时间。压机包括：设置在基座2b上的B轴角度分度装置3，B轴角度分度装置3包括台B; 设置在工作台B上的A轴角度分度装置25，A轴角度分度装置25，其包括工作台A; 设置在工作台A上的卡盘32，用于保持工件的卡盘32; 设置在基座上的基座Z6，基座Z6可在Z轴方向上操作; 设置在基座Z上的基座X8，基座X8可沿轴线X方向操作; 设置在基座X上的冲头保持部13，冲头保持部13沿Y轴方向垂直地工作; 以及与轴线Z平行地保持在冲头保持部上的多个冲头19,22。压力机用于通过改变作业的姿势并在Z方向上移动冲头来在期望的位置执行按压循环连续地使用具有不同前端直径和形状的冲头，工件保持在卡盘中。

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