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

IPC分类号： F02M51/06 ,  F02M61/16 ,  F02M51/02 ,  H01F7/16 ,  H02K3/04 ,  F02M47/02 ,  F02M51/00

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.

公开(公告)号：US08888021B2

公开(公告)日：2014-11-18

申请号：US13344665

申请日：2012-01-06

申请人： Yoshihito Yasukawa ,  Yoshio Okamoto ,  Takahiro Saito ,  Masanori Ishikawa ,  Eiji Ishii ,  Nobuaki Kobayashi ,  Noriyuki Maekawa

发明人： Yoshihito Yasukawa ,  Yoshio Okamoto ,  Takahiro Saito ,  Masanori Ishikawa ,  Eiji Ishii ,  Nobuaki Kobayashi ,  Noriyuki Maekawa

IPC分类号： F02M61/00 ,  F02M61/18 ,  F02M61/16 ,  F02M51/06

CPC分类号： F02M61/162 ,  F02B31/00 ,  F02M51/061 ,  F02M61/1853 ,  F02M61/188

摘要： A fuel injection valve includes: a swirl chamber having an inner peripheral wall formed to be gradually increased in curvature toward a downstream side from an upstream side; a swirl passage, through which a fuel is introduced into the swirl chamber; and a fuel injection port opened to the swirl chamber, wherein the swirl chamber and the swirl passage are formed so that a side wall of the swirl passage connected to a downstream end side of the swirl chamber, or an extension thereof is made not to intersect a downstream side portion of the inner peripheral wall of the swirl chamber, or an extension thereof.

摘要翻译： 燃料喷射阀包括：旋流室，其具有形成为从上游侧向下游侧逐渐增加的曲率的内周壁; 涡流通道，燃料通过该涡流通道引入涡流室; 以及向所述涡流室开口的燃料喷射口，其特征在于，所述涡流室和所述涡流通路形成为使得与所述涡流室的下游端侧连接的涡旋通路的侧壁或其旋转延伸部不会相交 涡流室的内周壁的下游侧部分或其延伸部分。

公开(公告)号：US08882003B2

公开(公告)日：2014-11-11

申请号：US13556394

申请日：2012-07-24

申请人： Yoshio Okamoto ,  Yoshihito Yasukawa ,  Noriyuki Maekawa ,  Nobuaki Kobayashi ,  Takahiro Saito

发明人： Yoshio Okamoto ,  Yoshihito Yasukawa ,  Noriyuki Maekawa ,  Nobuaki Kobayashi ,  Takahiro Saito

IPC分类号： F02M61/18 ,  F02M61/10 ,  F02M61/06 ,  F02M51/06 ,  B05B1/34 ,  F02M61/16

CPC分类号： F02M61/186 ,  F02M61/162 ,  F02M61/1853

摘要： A fuel injector has a swirl generator located downstream from a valve seat. A fuel injection hole is connected to a downstream side of the swirl generator. The swirl generator includes a swirl chamber having an involute or a spiral shape and the fuel injection hole bored at a bottom or the swirl chamber and a swirl generation use passage connected to the upstream side of the swirl chamber for introducing fuel into the swirl chamber. The bottom of the swirl chamber is provided with a step height so as to make a level difference in which the bottom of the swirl chamber is lower than a bottom of the swirl generation use passage, and the step height is formed at a position where fuel flowing into the swirl chamber from the swirl generation use passage meets fuel turning in the swirl chamber.

摘要翻译： 燃料喷射器具有位于阀座下游的旋流发生器。 燃料喷射孔连接到涡流发生器的下游侧。 涡流发生器包括具有渐开线或螺旋形状的旋转室，在底部钻有的燃料喷射孔或涡流室，以及连接到涡流室的上游侧的涡流产生用通道，用于将燃料引入涡流室。 涡流室的底部具有台阶高度，以便使涡流室的底部低于涡流生成用通道的底部的水平差，并且台阶高度形成在燃料 从漩涡发生使用通道流入涡流室满足涡流室中的燃料转向。

公开(公告)号：US20120216783A1

公开(公告)日：2012-08-30

申请号：US13403506

申请日：2012-02-23

申请人： Ryo KUSAKABE ,  Motoyuki ABE ,  Hideharu EHARA ,  Tohru ISHIKAWA ,  Noriyuki MAEKAWA ,  Takuya Mayuzumi

发明人： Ryo KUSAKABE ,  Motoyuki ABE ,  Hideharu EHARA ,  Tohru ISHIKAWA ,  Noriyuki MAEKAWA ,  Takuya Mayuzumi

IPC分类号： F02D41/02 ,  F02M51/06

CPC分类号： F02D41/20 ,  F02D41/402 ,  F02D2041/2037

摘要： The drive device is configured to, during a time interval between an earlier fuel injection (first fuel injection) and a later fuel injection (second fuel injection), supply an electromagnetic coil with an intermediate current at a voltage with a level of not opening the valve. Further, the drive device sets a voltage application for supplying the intermediate current to initiate before a valve closing in the earlier fuel injection and terminate before half a period of time between a first instant when the valve is closed in the earlier fuel injection and a second instant when a supply of a drive current for opening the valve is initiated in the later fuel injection.

摘要翻译： 驱动装置被构造成在较早的燃料喷射（第一燃料喷射）和稍后的燃料喷射（第二燃料喷射）之间的时间间隔期间以不打开等级的电压向中间电流供应电磁线圈 阀。 此外，驱动装置设定用于提供中间电流的电压施加，以在较早的燃料喷射中的阀关闭之前启动，并且在较早的燃料喷射中的阀关闭的第一瞬间和第二时间之间的半个时间段之前终止 在稍后的燃料喷射中启动用于打开阀的驱动电流的供应的瞬间。

公开(公告)号：US08162623B2

公开(公告)日：2012-04-24

申请号：US12261439

申请日：2008-10-30

申请人： Shunsuke Aritomi ,  Noriyuki Maekawa ,  Hideki Machimura ,  Masashi Nemoto

发明人： Shunsuke Aritomi ,  Noriyuki Maekawa ,  Hideki Machimura ,  Masashi Nemoto

IPC分类号： F04B49/00

CPC分类号： F02M63/0265 ,  F02M37/0029 ,  F02M37/0052 ,  F02M59/366 ,  F02M63/0036 ,  F02M63/005 ,  F02M63/0054 ,  F04B49/035 ,  G05D7/0133

摘要： An object of the present invention is to reduce the pressure loss in a relief valve employed for a high-pressure liquid supply pump. Disclosed is a high-pressure liquid supply pump for pressurizing a liquid and supplying the pressurized liquid from a low-pressure side to a high-pressure side. The pump includes a relief path which releases the pressurized liquid from the high-pressure side to the low-pressure side, and a relief valve which is positioned in the relief path and equipped with an intermediate chamber, a valve seat positioned toward the high-pressure side of the intermediate chamber, a ball valve that is attachable to and detachable from the valve seat, and a ball valve retainer for pressing the ball valve against the valve seat. The relief path is configured so that an inflow path to the intermediate chamber and an outflow path from the intermediate chamber both produce a restriction effect. The ball valve retainer has a pressure reception surface for receiving the pressure from the intermediate chamber. A first pressure reception area, which detaches the ball valve from the valve seat upon receipt of liquid pressure of the pressurized liquid from a high-pressure section when the relief valve closes, is smaller than a second pressure reception area, which lifts the ball valve and the ball valve retainer upon receipt of liquid pressure from the intermediate chamber.

摘要翻译： 本发明的目的是降低用于高压液体供给泵的安全阀中的压力损失。 公开了一种用于对液体加压并将加压液体从低压侧供给至高压侧的高压液体供给泵。 泵包括将加压液体从高压侧释放到低压侧的释放路径，以及安置阀，其位于释放路径中并配备有中间室，朝向高压侧定位的阀座， 中间室的压力侧，可附接到阀座和可从阀座拆卸的球阀，以及用于将球阀压靠在阀座上的球阀保持器。 排气路径构造成使得到中间室的流入路径和来自中间室的流出路径都产生限制效果。 球阀保持器具有用于接收来自中间室的压力的压力接收表面。 第一压力接收区域，当安全阀关闭时接收到来自高压部分的加压液体的液体压力时，将球阀从阀座分离，小于第二压力接收区域，该压力接收区域提升球阀 以及当从中间室接收液体压力时球阀保持器。

公开(公告)号：US20070194152A1

公开(公告)日：2007-08-23

申请号：US11654528

申请日：2007-01-18

申请人： Motoyuki Abe ,  Masahiko Hayatani ,  Atsushi Sekine ,  Yasuo Namaizawa ,  Tohru Ishikawa ,  Noriyuki Maekawa

发明人： Motoyuki Abe ,  Masahiko Hayatani ,  Atsushi Sekine ,  Yasuo Namaizawa ,  Tohru Ishikawa ,  Noriyuki Maekawa

IPC分类号： F02M51/00 ,  F02M63/00 ,  F02M61/16 ,  F02M61/20

CPC分类号： F02M51/0653 ,  F02M61/205 ,  F02M2200/306 ,  F02M2200/507

摘要： An injector used for an internal combustion engine includes a valve needle which closes a fuel passage by being contacted on a valve seat and opens the fuel passage by separating from the valve seat, a coil and a magnetic core which are provided as a drive means of the valve needle, an anchor held in a relatively displaceable state with respect to the valve needle, a first biasing means biasing the valve needle in a direction opposite to a direction of a drive force, a second biasing means biasing the anchor in the direction of the drive force with a set load smaller than that of the first biasing means, and a restricting means restricting relative displacement of the anchor with respect to the valve needle in the direction of the drive force.

摘要翻译： 用于内燃机的喷射器包括阀针，该阀针通过与阀座接触而关闭燃料通道，并且通过与阀座分离而打开燃料通道，线圈和磁芯被设置为驱动装置 所述阀针，相对于所述阀针保持相对位移状态的锚固件，沿与驱动力方向相反的方向偏压所述阀针的第一偏置装置;沿所述阀针的方向 所述驱动力的设定载荷小于所述第一施力装置的驱动力;以及限制装置，其限制所述锚固体相对于所述阀针沿所述驱动力的方向的相对位移。

公开(公告)号：US20070075166A1

公开(公告)日：2007-04-05

申请号：US11633528

申请日：2006-12-05

申请人： Masahiro Tsuchiya ,  Tosuke Hirata ,  Yoshio Okamoto ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Yoshiyuki Tanabe ,  Atsushi Sekine ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Motoyuki Abe

发明人： Masahiro Tsuchiya ,  Tosuke Hirata ,  Yoshio Okamoto ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Yoshiyuki Tanabe ,  Atsushi Sekine ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Motoyuki Abe

IPC分类号： F02M51/00 ,  F02M61/20 ,  F16K31/02

CPC分类号： F02M51/0682 ,  F02M51/061 ,  F02M61/205 ,  F02M2200/306 ,  Y10S239/90

摘要： A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit for applying force to the valve element in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system, which interacts with a primary oscillation system including the valve element and the force-applying member, is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system, whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very accurate fuel-injection control.

公开(公告)号：US07082922B2

公开(公告)日：2006-08-01

申请号：US10962753

申请日：2004-10-13

申请人： Motoyuki Abe ,  Noriyuki Maekawa ,  Takuya Shiraishi ,  Hiroshi Fujii ,  Mamoru Fujieda ,  Toru Ishikawa ,  Yoshiyuki Tanabe

发明人： Motoyuki Abe ,  Noriyuki Maekawa ,  Takuya Shiraishi ,  Hiroshi Fujii ,  Mamoru Fujieda ,  Toru Ishikawa ,  Yoshiyuki Tanabe

IPC分类号： F02B15/00

CPC分类号： F02M61/1806 ,  F02M61/14 ,  F02M61/162 ,  F02M69/045

摘要： In order to provide a fuel injection method of an internal combustion engine having higher combustion stability which can direct a part of concentrated fuel spray toward an ignition plug according to a fuel injection atmosphere, a fuel injection valve thereof, and an internal combustion engine, the present invention provides a fuel injection method of an internal combustion engine for injecting fuel so as to generate a part of high spray concentration and a part of low spray concentration on the cross section of spray by giving swirling force to fuel from an injection hole at the front end of a fuel injection valve, comprising the step of setting a reference indicating the position of a axis of the fuel injection valve indicating the injection direction of the part of high spray concentration in the rotational direction when fuel is injected into an atmosphere under the atmospheric pressure.

摘要翻译： 为了提供具有较高燃烧稳定性的内燃机的燃料喷射方法，其能够根据燃料喷射气体，其燃料喷射阀和内燃机将一部分浓缩燃料喷射引向火花塞， 本发明提供了一种用于喷射燃料的内燃机的燃料喷射方法，以便在喷雾截面上产生一部分高喷雾浓度和一部分低喷雾浓度，该喷射浓度和一部分喷雾浓度通过从喷射孔中的喷射孔向燃料施加旋动力 燃料喷射阀的前端包括以下步骤：当燃料喷射到下面的气氛中时，将指示燃料喷射阀的轴的位置的参考指示指示喷射高浓度部分的喷射方向的部分在旋转方向上的步骤 气压。

公开(公告)号：US06474572B1

公开(公告)日：2002-11-05

申请号：US09517046

申请日：2000-03-02

申请人： Masahiro Tsuchiya ,  Tosuke Hirata ,  Yoshio Okamoto ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Yoshiyuki Tanabe ,  Atsushi Sekine ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Motoyuki Abe

发明人： Masahiro Tsuchiya ,  Tosuke Hirata ,  Yoshio Okamoto ,  Tohru Ishikawa ,  Noriyuki Maekawa ,  Yoshiyuki Tanabe ,  Atsushi Sekine ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Motoyuki Abe

IPC分类号： F02M5100

CPC分类号： F02M51/0682 ,  F02M51/061 ,  F02M61/205 ,  F02M2200/306 ,  Y10S239/90

摘要： A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit for applying force to the valve element in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system, which interacts with a primary oscillation system including the valve element and the force-applying member, is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system, whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very accurate fuel-injection control.

摘要翻译： 燃料喷射阀包括燃料喷射孔，阀元件和用于打开和关闭燃料喷射孔的阀座，用于沿阀元件的运动方向向阀元件施加力的施力构件 以及驱动单元，用于沿与所述施力部件施加的力的方向相反的方向向所述阀元件施加力; 其中与主振荡系统相加的与包括阀元件和施力部件的主振荡系统相互作用的次级振荡系统，并且由次振荡系统施加到主振荡系统的相位角力是 也与主振荡系统的作用力交错，该主振荡系统除了通过二次振荡系统施加到主振荡系统的力之外，因此在阀的打开和关闭期间阀元件的弹跳减小，这在 转动使得可以实现非常精确的燃料喷射控制。

公开(公告)号：US06367720B1

公开(公告)日：2002-04-09

申请号：US09650092

申请日：2000-08-29

申请人： Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Noriyuki Maekawa ,  Tohru Ishikawa ,  Ayumu Miyajima ,  Kiyoshi Amou

发明人： Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Noriyuki Maekawa ,  Tohru Ishikawa ,  Ayumu Miyajima ,  Kiyoshi Amou

IPC分类号： B05B130

CPC分类号： F02M61/188 ,  F02M51/0675 ,  F02M51/0678 ,  F02M61/162 ,  F02M61/18

摘要： There is required a valve structure which can be easily worked, does not increase a producing cost, can reduce a dispersion in a side gap by restricting an eccentricity and an incline of a valve body and can maintain an injection accuracy high. In particular, there is required an electromagnetic fuel injection valve which is advantageous in view of production even in a narrow valve structure. In the electromagnetic fuel injection valve, at least one guide portion having one end fixed to an injection valve main body and guiding an axial sliding motion of the valve member in the inner portion is provided, and a nozzle guide body constituting a magnetic passage portion formed so as to surround a magnetic member connected and fixed to one end of the valve member by the same material is provided. Accordingly, it is possible to reduce a dispersion of a side gap constituting the magnetic passage, and it is possible to stabilize an axial motion of the valve member, whereby an injection accuracy is maintained high and an inexpensive injection valve is obtained.

摘要翻译： 需要能够容易地加工的阀结构，不会增加生产成本，通过限制阀体的偏心率和倾斜度可以降低侧面间隙的分散，并且可以保持高的喷射精度。 特别地，需要一种电磁燃料喷射阀，即使在狭窄的阀结构中也是有利的。 在电磁燃料喷射阀中，设置有至少一个引导部，其一端固定在喷射阀主体上并引导阀部件在内部的轴向滑动运动，形成有构成磁通部的喷嘴引导体 以包围以相同的材料连接并固定在阀构件的一端的磁性构件。 因此，能够减小构成磁路的侧隙的分散，能够使阀构件的轴向运动稳定化，从而保持喷射精度高，成本低廉的喷射阀。