公开(公告)号：US07828228B2

公开(公告)日：2010-11-09

申请号：US12345700

申请日：2008-12-30

申请人： Kouichi Mochizuki ,  Masatoshi Kuroyanagi ,  Tatsushi Nakashima

发明人： Kouichi Mochizuki ,  Masatoshi Kuroyanagi ,  Tatsushi Nakashima

IPC分类号： B05B1/08

CPC分类号： F02D41/2096 ,  F02D2041/2034 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02M51/0603

摘要： An inflection point sensing arrangement of an electronic drive unit, which drives a fuel injection valve, senses an inflection point in a pressure-changing process of the pressure in the control chamber. A charging and discharging condition changing arrangement of the electronic drive unit changes a charging condition for charging of the electric current to a piezoelectric actuator of the fuel injection valve or a discharging condition for discharging of the electric current from the piezoelectric actuator upon sensing of the inflection point, which is sensed with the inflection point sensing arrangement.

摘要翻译： 驱动燃料喷射阀的电子驱动单元的拐点感测装置在控制室中的压力变化过程中感测到拐点。 电子驱动单元的充放电条件改变布置将用于对燃料喷射阀的压电致动器的电流充电的充电状态改变为用于在感测到拐点时从压电致动器排出电流的放电条件 点，其被拐点感测装置感测。

公开(公告)号：US07644875B2

公开(公告)日：2010-01-12

申请号：US12068898

申请日：2008-02-13

申请人： Kouichi Mochizuki ,  Masatoshi Kuroyanagi

发明人： Kouichi Mochizuki ,  Masatoshi Kuroyanagi

IPC分类号： B05B1/08 ,  F02M61/20

CPC分类号： F02M51/0603 ,  F02M2200/704

摘要： An injector has an inner sleeve between a needle pressure receiving face of a needle and a rear end face of a valve body. The inner sleeve is slidably fitted to an outer periphery of a middle shaft section of the needle. The inner sleeve receives a reaction force of a spring located between the inner sleeve and a pressurizing piston, so an axial tip end (edge section) of the inner sleeve is pressed against the rear end face to achieve close contact therebetween. Thus, a volume of a pressure chamber can be reduced, so a valve opening force for lifting the needle can be acquired efficiently. Accordingly, injection of a large flow rate can be performed by increasing a lift amount of the needle and also quick lifting of the needle can be performed.

摘要翻译： 注射器具有在针的针受压面和阀体的后端面之间的内套筒。 内套筒可滑动地装配到针的中间轴部分的外周。 内套管接收位于内套筒和加压活塞之间的弹簧的反作用力，因此内套筒的轴向前端（边缘部分）被压靠在后端面上，以实现紧密接触。 因此，可以减小压力室的体积，因此可以有效地获得用于提升针的开启力。 因此，可以通过增加针的提升量来进行大流量的注入，并且可以进行针的快速提升。

公开(公告)号：US20090179088A1

公开(公告)日：2009-07-16

申请号：US12345700

申请日：2008-12-30

申请人： Kouichi MOCHIZUKI ,  Masatoshi Kuroyanagi ,  Tatsushi Nakashima

发明人： Kouichi MOCHIZUKI ,  Masatoshi Kuroyanagi ,  Tatsushi Nakashima

IPC分类号： F02M51/06

CPC分类号： F02D41/2096 ,  F02D2041/2034 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02M51/0603

摘要： An inflection point sensing arrangement of an electronic drive unit, which drives a fuel injection valve, senses an inflection point in a pressure-changing process of the pressure in the control chamber. A charging and discharging condition changing arrangement of the electronic drive unit changes a charging condition for charging of the electric current to a piezoelectric actuator of the fuel injection valve or a discharging condition for discharging of the electric current from the piezoelectric actuator upon sensing of the inflection point, which is sensed with the inflection point sensing arrangement.

摘要翻译： 驱动燃料喷射阀的电子驱动单元的拐点感测装置在控制室中的压力变化过程中感测到拐点。 电子驱动单元的充放电条件改变布置将用于对燃料喷射阀的压电致动器的电流充电的充电状态改变为用于在感测到拐点时从压电致动器排出电流的放电条件 点，其被拐点感测装置感测。

公开(公告)号：US07493897B2

公开(公告)日：2009-02-24

申请号：US11873609

申请日：2007-10-17

申请人： Miyao Arakawa ,  Yoshiaki Nishijima ,  Masatoshi Kuroyanagi ,  Yoshimichi Kiyozumi

发明人： Miyao Arakawa ,  Yoshiaki Nishijima ,  Masatoshi Kuroyanagi ,  Yoshimichi Kiyozumi

IPC分类号： F02B1/00 ,  F02B1/08

CPC分类号： F02M69/465 ,  B01D61/027 ,  B01D71/028 ,  F02M43/00 ,  F02M69/54 ,  F02M2200/90 ,  F02M2200/9046

摘要： A fuel supply apparatus includes a component adjustment unit, a low-pressure side passage, and a valve. The unit adjusts component composition of fuel by separating a particular component from fuel. The unit includes a component separation wall, which divides an interior of a portion of a fuel supply passage between an anterior chamber and a posterior chamber. The wall includes a separation membrane, which the particular component of fuel in the anterior chamber selectively permeates to be separated. The particular component after passing through the wall is temporarily stored in the posterior chamber. When the low-pressure side passage connected to the posterior chamber is opened by the valve, the particular component is separated. Fuel, from which the particular component is separated, is supplied to an injection valve from the anterior chamber. When the low-pressure side passage is closed by the valve, the separation of the particular component is restricted.

摘要翻译： 燃料供给装置包括部件调整单元，低压侧通路和阀。 该单元通过将特定组分与燃料分离来调节燃料的组分组成。 该单元包括部件分隔壁，其将燃料供给通道的一部分的内部分隔在前房和后室之间。 该壁包括分离膜，其中前房中的燃料的特定组分选择性渗透以分离。 通过壁后的特定部件临时储存在后室中。 当连接到后室的低压侧通道被阀打开时，特定部件被分离。 特定部件从其分离的燃料从前房提供给注射阀。 当低压侧通道被阀关闭时，特定部件的分离受到限制。

公开(公告)号：US20090020631A1

公开(公告)日：2009-01-22

申请号：US12170850

申请日：2008-07-10

申请人： Makoto Mashida ,  Masatoshi Kuroyanagi ,  Masaaki Kato ,  Kenji Funai

发明人： Makoto Mashida ,  Masatoshi Kuroyanagi ,  Masaaki Kato ,  Kenji Funai

IPC分类号： F02M61/04

CPC分类号： F02M63/0001 ,  F02D19/061 ,  F02D19/0678 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/0254 ,  F02M21/0263 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M47/043 ,  F02M61/042 ,  F02M61/1813 ,  F02M63/0015 ,  F02M63/0026 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36

摘要： A fuel injector injects high-pressure gaseous fuel directly into a cylinder of an engine. A small amount of liquid fuel is used in the injector to lubricate sliding portions of the fuel injector in addition to utilizing it as a medium for transmitting driving force. The fuel injector includes a nozzle member having injection holes at its elongated end and a needle slidably disposed in an elongated center hole of the nozzle member. The needle is driven by pressure of the liquid fuel introduced into a control chamber to open or close the injection holes. The pressure in the control chamber is controlled by a switching valve which is in turn driven by an actuator such as an electromagnetic or piezoelectric actuator. The liquid fuel is injected together with the high-pressure gaseous fuel after lubricating the sliding portions between the nozzle member and the needle.

摘要翻译： 燃料喷射器将高压气体燃料直接喷射到发动机的气缸中。 喷射器中使用少量液体燃料，除了利用其作为传递驱动力的介质之外，还可以润滑喷射器的滑动部分。 燃料喷射器包括在其细长端具有喷射孔的喷嘴构件和可滑动地设置在喷嘴构件的细长中心孔中的针。 针被引入到控制室中的液体燃料的压力驱动以打开或关闭喷射孔。 控制室中的压力由切换阀控制，转换阀又由诸如电磁或压电致动器的致动器驱动。 在润滑喷嘴构件和针之间的滑动部分之后，液体燃料与高压气体燃料一起喷射。

公开(公告)号：US20080128350A1

公开(公告)日：2008-06-05

申请号：US11949857

申请日：2007-12-04

申请人： Miyao ARAKAWA ,  Yoshiaki Nishijima ,  Masatoshi Kuroyanagi ,  Yoshimichi Kiyozumi

发明人： Miyao ARAKAWA ,  Yoshiaki Nishijima ,  Masatoshi Kuroyanagi ,  Yoshimichi Kiyozumi

IPC分类号： B01D63/00

CPC分类号： B01D71/028 ,  B01D61/02 ,  B01D63/087 ,  B01D2313/20 ,  B01D2313/90 ,  F02M37/0082 ,  F02M37/221

摘要： A water separation unit includes a water separation portion. The water separation portion includes a component separation wall, a liquid chamber, and a gas chamber. The separation wall divides the water separation portion between the liquid chamber and the gas chamber. Liquid fuel is led to the liquid chamber. The separation wall includes a separation membrane, which water selectively permeates to be separated from liquid fuel in the liquid chamber. Water passing through the separation wall is temporarily stored in the gas chamber. A fuel supply apparatus supplies liquid fuel in a fuel tank to an internal-combustion engine. The apparatus includes the water separation unit. The water separation portion is disposed integrally in one of the fuel tank and a passage leading from a filler opening into the fuel tank, such that the liquid chamber is located above the gas chamber in a vertical direction of the water separation portion.

摘要翻译： 水分离单元包括水分离部分。 水分离部分包括部件分离壁，液体室和气体室。 分隔壁将液体室和气室之间的水分离部分分开。 液体燃料被引导到液体室。 分离壁包括分离膜，该分离膜选择性渗透以与液体室中的液体燃料分离。 通过分隔壁的水暂时储存在气室中。 燃料供给装置将燃料箱内的液体燃料供给内燃机。 该装置包括水分离单元。 水分离部一体地设置在一个燃料箱和从填料开口引入燃料箱的通道中，使得液室在水分离部的垂直方向上位于气室的上方。

公开(公告)号：US20080099585A1

公开(公告)日：2008-05-01

申请号：US11955094

申请日：2007-12-12

申请人： Keigo Ohata ,  Masatoshi Kuroyanagi

发明人： Keigo Ohata ,  Masatoshi Kuroyanagi

IPC分类号： B05B1/30

CPC分类号： F02M47/027 ,  F02M61/04 ,  F02M61/08 ,  F02M61/16 ,  F02M63/0026

摘要： A fuel injection valve includes a housing having an injection hole at a front end thereof, a fuel-collecting chamber that is communicated with the injection hole and is supplied high-pressure fuel from said fuel tank thereto, a pressure control chamber that is disposed on the opposite side of the fuel-collecting chamber with respect to the injection hole and is supplied high-pressure fluid from a supply source of high-pressure fluid thereto, and a valve needle to open and close the injection hole, the valve needle being disposed in the housing. The valve needle has a first pressure-receiving surface to receive fluid pressure in the pressure control chamber. Moreover, the first pressure-receiving surface is formed on the valve needle so that the first pressure-receiving surface faces injection hole side of the pressure control chamber.

摘要翻译： 一种燃料喷射阀，包括在其前端具有喷射孔的壳体，与所述喷射孔连通且从所述燃料箱向其供给高压燃料的燃料收集室，设置在所述喷射孔上的压力控制室 燃料收集室相对于喷射孔的相反侧，并且从高压流体的供给源向其供应高压流体，以及阀针，以打开和关闭喷射孔，所述阀针被设置 在房屋里 阀针具有用于接收压力控制室中的流体压力的第一压力接收表面。 此外，第一受压面形成在阀针上，使得第一受压面面对压力控制室的喷射孔侧。

公开(公告)号：US20060283424A1

公开(公告)日：2006-12-21

申请号：US11453050

申请日：2006-06-15

申请人： Hiroaki Nagatomo ,  Kimitaka Saito ,  Masatoshi Kuroyanagi

发明人： Hiroaki Nagatomo ,  Kimitaka Saito ,  Masatoshi Kuroyanagi

IPC分类号： F02M59/46 ,  F02M51/00

CPC分类号： F02M45/086 ,  F02M47/027 ,  F02M61/042 ,  F02M61/08 ,  F02M61/163

摘要： A valve body surrounds a first passage connecting with a cylinder of an engine. A valve member is adapted to be seated on and lifted from the valve seat. An injector body connects with the valve body. The injector body has a pressure control chamber for controlling hydraulic pressure applied to the valve member thereby controlling a lift of the valve member. The injector body has a second passage through which fuel in the pressure control chamber is exhausted. An actuator is adapted to communicating the pressure control chamber with the first passage through the second passage and blocking the pressure control chamber from the first passage. The first passage introduces fuel from the pressure control chamber into the cylinder through the second passage.

公开(公告)号：US20050242211A1

公开(公告)日：2005-11-03

申请号：US11115296

申请日：2005-04-27

申请人： Kenji Funai ,  Masatoshi Kuroyanagi ,  Akira Shibata ,  Kenji Date

发明人： Kenji Funai ,  Masatoshi Kuroyanagi ,  Akira Shibata ,  Kenji Date

IPC分类号： F02M47/00 ,  F02M47/02 ,  F02M51/06 ,  F02M55/00 ,  F02M59/00 ,  F02M61/10 ,  F02M61/16 ,  F02M63/00

CPC分类号： F02M63/0029 ,  F02M47/027 ,  F02M55/007 ,  F02M61/168 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/0045 ,  F02M63/0054 ,  F02M2200/40 ,  F02M2200/8084 ,  F02M2547/006

摘要： A valve back pressure chamber is provided to exert a back pressure of a first valve needle. Furthermore, a hydraulic pressure passage is provided to extend through the valve back pressure chamber. A valve body is provided to a second valve needle and is driven to connect and disconnect between the hydraulic pressure passage and a fuel tank and thereby to drive the first valve needle. The second valve needle is driven by hydraulic pressure induced by an actuator.

摘要翻译： 提供阀背压室以施加第一阀针的背压。 此外，设置液压通道以延伸穿过阀背压室。 阀体设置在第二阀针上并被驱动以连接和断开液压通道与燃料箱之间，从而驱动第一阀针。 第二阀针由致动器引起的液压驱动。

公开(公告)号：US06679440B2

公开(公告)日：2004-01-20

申请号：US09978583

申请日：2001-10-18

申请人： Toshihiko Igashira ,  Masatoshi Kuroyanagi ,  Satoshi Hayashi

发明人： Toshihiko Igashira ,  Masatoshi Kuroyanagi ,  Satoshi Hayashi

IPC分类号： F02M5900

CPC分类号： F02M63/0026 ,  F02M47/027 ,  F02M63/0036 ,  F02M63/0045 ,  F02M2200/706

摘要： A valve actuating device is provided which may be employed in fuel injectors for automotive internal combustion engines. The valve actuating device includes an actuator, a large-diameter piston displaced by said actuator, a small-diameter piston operating a valve, a displacement amplifying chamber filled with working fluid to amplify and transmit displacement of the large-diameter piston to the small-diameter piston, and a drain passage. The drain passage communicates with the displacement amplifying chamber through a pinhole for draining the working fluid within the displacement amplifying chamber, thereby enabling the pressure in the displacement amplifying chamber to be released in order to ensure the movement of the small-diameter piston when the valve actuating device is started.

摘要翻译： 提供了可用于汽车内燃机的燃料喷射器中的阀致动装置。 阀致动装置包括致动器，由所述致动器移动的大直径活塞，操作阀的小直径活塞，填充有工作流体的位移放大室，以将大直径活塞的位移放大并传递到小直径活塞， 直径活塞和排水通道。 排水通道通过针孔与位移放大室连通，用于排出位移放大室内的工作流体，从而使位移放大室中的压力释放，以确保小直径活塞在阀门 启动装置启动。