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公开(公告)号:US5714729A
公开(公告)日:1998-02-03
申请号:US672926
申请日:1996-06-28
申请人: Yuji Yamada , Tohru Ishikawa , Yuichi Motora , Yoichi Masuda , Toshihiro Yasuda
发明人: Yuji Yamada , Tohru Ishikawa , Yuichi Motora , Yoichi Masuda , Toshihiro Yasuda
CPC分类号: B23K9/167 , B23K9/0213
摘要: A TIG welding method is usually carried out in a manner that a tungsten electrode is inserted into a weld groove portion of a member to be welded, an electric voltage is applied to a current conducting portion provided for the tungsten electrode while flowing a shield gas means to thereby generate an arc between the tungsten electrode and the member to be welded to form a molten pool of the member, a welding wire is inserted into the molten pool, and a welding torch is then operated to perform a welding process. In the improvement of the TIG welding method, the shield gas means is composed of an inner shield gas flowing from a periphery of the tungsten electrode to a front end thereof inserted into the weld groove portion of the member to be welded and an outer shield gas flowing towards the weld groove angle from an outside of the inner shield gas to prevent the molten pool from being oxidized and to prevent oxygen in air from being involved. The TIG welding torch for carrying out the method is specifically provided with the inner and outer shield gas flow means, and further provided with a central shield gas flow means.
摘要翻译: TIG焊接方法通常以将钨电极插入待焊接部件的焊接槽部分的方式进行,在设置于钨电极的导电部分上施加电压,同时使屏蔽气体装置 从而在钨电极和被焊接部件之间产生电弧以形成该部件的熔池,将熔丝插入到熔池中,然后操作焊炬进行焊接处理。 在改进TIG焊接方法中,屏蔽气体装置由从钨电极的周边流到其前端的内部屏蔽气体插入待焊接部件的焊接槽部分和外部保护气体 从内屏蔽气体的外侧朝向焊缝角度流动,以防止熔池被氧化并防止空气中的氧气被引入。 用于实施该方法的TIG焊炬具体设置有内外气体保护气体装置,并且还具有中央保护气体流动装置。
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公开(公告)号:US09103311B2
公开(公告)日:2015-08-11
申请号:US14232725
申请日:2011-08-03
申请人: Yoshihito Yasukawa , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Eiji Ishii
发明人: Yoshihito Yasukawa , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Eiji Ishii
CPC分类号: F02M51/061 , F02M61/162 , F02M61/1806 , F02M61/1813 , F02M61/182 , F02M61/1833
摘要: Fuel injection valve with conical valve seat surface that abuts a valve body to seal fuel, fuel injection orifices having an inlet opening formed on the valve seat surface, wherein fuel sprays injected from the plurality of fuel injection orifices include a first fuel spray constituted by a fuel spray injected from at least one fuel injection orifice and a second fuel spray constituted by a plurality of fuel sprays injected at an outer periphery of the first fuel spray, and a fuel injection orifice that injects the first fuel spray constituted with a plane that includes an orifice axis connecting a center of an inlet with a center of an outlet of the fuel injection orifice, parallel to a center axis of the fuel injection valve intersecting a plane, a conical apex that forms the valve seat surface to form an inclination angle that is larger than 0°.
摘要翻译: 具有锥形阀座表面的燃料喷射阀,其邻接阀体以密封燃料,具有形成在阀座表面上的入口的燃料喷射孔,其中从多个燃料喷射孔喷射的燃料喷射包括第一燃料喷雾, 从至少一个燃料喷射孔喷射的燃料喷雾和由在第一燃料喷雾的外周边喷射的多个燃料喷雾构成的第二燃料喷雾;以及燃料喷射孔,其喷射由包括 将入口的中心与燃料喷射孔的出口的中心连接的孔轴平行于与平面交叉的燃料喷射阀的中心轴线,形成阀座表面的锥形顶点以形成倾斜角, 大于0°。
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公开(公告)号:US20120227709A1
公开(公告)日:2012-09-13
申请号:US13415960
申请日:2012-03-09
申请人: Ryo KUSAKABE , Motoyuki Abe , Tohru Ishikawa , Noriyuki Maekawa , Masahiro Soma , Takao Miyake , Yasuo Namaizawa
发明人: Ryo KUSAKABE , Motoyuki Abe , Tohru Ishikawa , Noriyuki Maekawa , Masahiro Soma , Takao Miyake , Yasuo Namaizawa
IPC分类号: F02M51/06
摘要: In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.
摘要翻译: 在燃料喷射装置中,驱动单元结构具有设置在磁芯的内周面内的朝向移动侧逐渐增大的磁性孔。 从电流向线圈的电流到磁通的上升以及从关闭电流到线圈的电磁阀关闭时的磁延迟时间可以减少磁性延迟时间,以减小磁通量, 通过在磁芯的内周面上设置磁性孔。 因此,可以提高开阀和关阀时的动态响应性。
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公开(公告)号:US20110042491A1
公开(公告)日:2011-02-24
申请号:US12918596
申请日:2009-07-14
IPC分类号: B05B1/30
CPC分类号: F02M61/188 , F02M61/1893
摘要: An injector used for an internal combustion engine, wherein force acting on a valve element due to flow of fuel is reduced. The shape of either a valve element front end or a valve seat surface of a fuel injection valve is adapted such that the distance between the valve element front end and the valve seat surface which is formed by a circular conical surface is greater than in the case when the shape from a valve element circular tube surface to a spherical surface which forms a seat is connected by a circular arc. As a result, the cross-sectional area of a flow path is rapidly increased from the valve seat surface, on the outer side of the valve element, and this reduces that portion of the valve element which receives pressure due to a reduction in static pressure, reducing force acting on the valve element.
摘要翻译: 用于内燃机的喷射器,其中由于燃料流动而作用在阀元件上的力减小。 燃料喷射阀的阀元件前端或阀座表面的形状适于使得由圆锥形表面形成的阀元件前端和阀座表面之间的距离大于在这种情况下 当从阀元件圆形管表面到形成座椅的球形表面的形状通过圆弧连接时。 结果,流路的横截面积从阀座表面在阀元件的外侧迅速增加,并且这减小了由于静压降低而承受压力的阀元件部分 ,减小作用在阀元件上的力。
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公开(公告)号:US07789073B2
公开(公告)日:2010-09-07
申请号:US12339496
申请日:2008-12-19
IPC分类号: F02M51/00
CPC分类号: F02D41/20 , F02D2041/2044 , F02D2041/2058
摘要: A fuel injection control apparatus is capable of reducing a minimum quantity of fuel injection without reducing a maximum quantity of injection. To open a fuel injector valve, a driving circuit supplies an electric current from a high-voltage power supply to the fuel injector. Then, after valve opening, the high-voltage power supply is switched to a low-voltage power supply, and an open state of the valve is retained. For opening the valve of the fuel injector, a microcomputer, after supplying current from the high-voltage power supply to the injector, discharges the current rapidly for a decrease below a first current level at which the open state of the valve cannot be retained. The microcomputer then controls the supply current to the injector so as to supply a current at a second current level at which the open state of the valve can be retained.
摘要翻译: 燃料喷射控制装置能够在不减少最大喷射量的情况下减少燃料喷射的最小量。 为了打开燃料喷射阀,驱动电路将来自高压电源的电流提供给燃料喷射器。 然后,在阀打开之后,将高压电源切换到低压电源,并且保持阀的打开状态。 为了打开燃料喷射器的阀,微型计算机在从高压电源向喷射器提供电流之后,迅速地将电流放电到低于不能保持阀的打开状态的第一电流水平的下降。 微型计算机然后控制到喷射器的供应电流,以便以可以保持阀的打开状态的第二电流水平提供电流。
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公开(公告)号:US07607418B2
公开(公告)日:2009-10-27
申请号:US12193433
申请日:2008-08-18
申请人: Motoyuki Abe , Masahiko Hayatani , Tohru Ishikawa , Takehiko Kowatari , Noriyuki Maekawa , Yasuo Namaizawa , Yusuke Irino
发明人: Motoyuki Abe , Masahiko Hayatani , Tohru Ishikawa , Takehiko Kowatari , Noriyuki Maekawa , Yasuo Namaizawa , Yusuke Irino
IPC分类号: F02M61/14
CPC分类号: F02M55/004 , F02M55/005 , F02M55/02 , F02M61/166 , F02M2200/16 , F02M2200/8023 , F02M2200/90 , F02M2200/9053
摘要: A fuel injection nozzle for directly injecting fuel into a cylinder of an internal combustion engine is inserted in a connecting pipe extending from a fuel rail and is fixed to the connecting pipe by fastening member. The fuel injection nozzle has a sealing part for sealing a fuel passage to prevent fuel leakage, and a contact part in contact with the fastening member. The contact part is softer than the fastening member, and the contact part undergoes plastic deformation when a bending moment that bends the axis of the fuel injection nozzle acts on the fuel injection nozzle.
摘要翻译: 用于将燃料直接喷射到内燃机的气缸中的燃料喷嘴插入从燃料轨延伸的连接管中,并通过紧固构件固定到连接管。 燃料喷射喷嘴具有用于密封燃料通道以防止燃料泄漏的密封部分和与紧固构件接触的接触部分。 接触部分比紧固构件更软,当弯曲燃料喷嘴的轴线的弯矩作用在燃料喷嘴上时,接触部分发生塑性变形。
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公开(公告)号:US06782867B2
公开(公告)日:2004-08-31
申请号:US10052631
申请日:2002-01-23
IPC分类号: F02B302
CPC分类号: F02D41/402 , F02B1/04 , F02B23/101 , F02B2023/103 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02D41/3836 , F02D2250/11 , F02F1/4214 , F02F2001/245 , F02M61/162 , F02M61/1806 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/44
摘要: In a center injection type of direct injection engine, since it has an ignition plug and an injector arranged in proximity, there occurs the problem that a sprayed liquid fuel directly strikes the ignition plug and causes the plug to misfire. A notch is to be provided at a portion of the injector end so as to form a coarse-grained portion and a dense portion in sprays of fuel, and the injector is disposed so that the coarse-grained portion is directed towards the ignition plug. It is possible to avoid the misfiring of the ignition plug and thus prolong the life of the plug, by preventing a liquid fuel from directly striking the plug.
摘要翻译: 在中央喷射式直喷发动机中,由于其具有靠近的火花塞和喷射器,所以存在喷射液体燃料直接撞击火花塞并导致火花塞失火的问题。 在喷射器端的一部分处设置切口,以便在燃料喷射中形成粗粒部分和致密部分,并且喷射器被设置成使得粗粒部分被引向火花塞。 通过防止液体燃料直接撞击插头,可以避免火花塞的点火不足,从而延长插头的使用寿命。
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28.
公开(公告)号:US06211166B1
公开(公告)日:2001-04-03
申请号:US09534156
申请日:2000-03-24
申请人: Kazuo Hattori , Tohru Ishikawa , Hideo Ishitsuka , Yasunori Kohchi , Nobuhiro Oikawa , Nobuo Shimma , Hitomi Suda
发明人: Kazuo Hattori , Tohru Ishikawa , Hideo Ishitsuka , Yasunori Kohchi , Nobuhiro Oikawa , Nobuo Shimma , Hitomi Suda
IPC分类号: A01N4304
摘要: Novel 5′-deoxy-cytidine derivatives represented by the general formula (I) wherein R1 is a hydrogen atom or a group easily hydrolyzable under physiological conditions; R2 is a hydrogen atom, or —CO—OR4 group [wherein R4 is a saturated or unsaturated, straight or branched hydrocarbon group consisting of one to fifteen carbon atoms, or a group of the formula —(CH2)n—Y (in which Y is cyclohexyl or phenyl; n is an integer from 0 to 4)]; R3 is a hydrogen atom, bromo, iodo, cyano, a C1-4 alkyl group [which may be substituted with halogen atom(s)], a vinyl or ethynyl group [which may be substituted with halogen atom(s), C1-4 alkyl, cycloalkyl, aralkyl, or aromatic ring which may have one or more hetero atom(s)], or an aralkyl group which may be substituted for use in medical therapy, especially tumor therapy.
摘要翻译: 由通式(I)表示的新型5'-脱氧胞苷衍生物,其中R1是氢原子或在生理条件下容易水解的基团; R2是氢原子或-CO-OR4基团[其中R4是由1-15个碳原子组成的饱和或不饱和的直链或支链烃基,或式 - (CH2)nY(其中Y是 环己基或苯基; n为0至4的整数)]; R3是氢原子,溴,碘,氰基,C1-4烷基[可以被卤素原子取代],乙烯基或乙炔基[可以被卤原子取代,C1- 4烷基,环烷基,芳烷基或可能具有一个或多个杂原子的芳环]或可用于药物治疗,特别是肿瘤治疗的芳烷基。
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公开(公告)号:US11067045B2
公开(公告)日:2021-07-20
申请号:US13415960
申请日:2012-03-09
申请人: Ryo Kusakabe , Motoyuki Abe , Tohru Ishikawa , Noriyuki Maekawa , Masahiro Soma , Takao Miyake , Yasuo Namaizawa
发明人: Ryo Kusakabe , Motoyuki Abe , Tohru Ishikawa , Noriyuki Maekawa , Masahiro Soma , Takao Miyake , Yasuo Namaizawa
摘要: In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.
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公开(公告)号:US20110155103A1
公开(公告)日:2011-06-30
申请号:US12920559
申请日:2009-07-29
申请人: Motoyuki Abe , Masahiko Hayatani , Tohru Ishikawa , Takehiko Kowatari , Atsushi Takaoku , Yasuo Namaizawa , Yusuke Irino
发明人: Motoyuki Abe , Masahiko Hayatani , Tohru Ishikawa , Takehiko Kowatari , Atsushi Takaoku , Yasuo Namaizawa , Yusuke Irino
IPC分类号: F02M59/46
CPC分类号: F02M51/0653 , F02M2200/02 , F02M2200/90 , F02M2200/9061
摘要: In a fuel injection valve, it is intended to enhance valve-closing responsivity while maintaining durability (anti wear property) of a collision portion between a stationary core and a movable core and valve-opening responsivity.An annular end face 106A of the movable core 106 in the fuel injection valve is provided with a collision portion 106C that collides to a stationary core 107 when the movable core is magnetically attracted toward the stationary core side and a non-collision portion that keeps a fluid gap between both cores at an area of an outer side or an inner side from the collision portion. The annular end faces of the stationary core and the movable core are coated with platings 30, 31 having anti wear property, and at least one of the platings of the stationary core and the movable core is formed in such a manner that the thickness thereof at the collision portion 106C is to be thicker and the thickness thereof at the non-collision portion is to be thinner.
摘要翻译: 在燃料喷射阀中,旨在提高阀关闭响应性,同时保持固定芯和可动芯之间的碰撞部分的耐久性(抗磨损性)和开阀响应性。 燃料喷射阀中的可动铁芯106的环形端面106A设置有碰撞部分106C,当可动铁心朝向固定铁芯侧被磁吸引时,碰撞部分106C与固定铁芯107碰撞;以及碰撞部分106C, 在碰撞部分的外侧或内侧的区域处的两个芯之间的流体间隙。 固定铁芯和可动铁芯的环形端面涂覆有具有抗磨损性能的电镀层30,31,并且固定铁芯和可动铁芯的至少一个镀层形成为使其厚度在 碰撞部分106C应较厚,并且其在非碰撞部分处的厚度应更薄。
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