公开(公告)号：US20150337786A1

公开(公告)日：2015-11-26

申请号：US14758882

申请日：2014-01-02

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Zongxuan Sun ,  Chienshin Wu

IPC分类号： F02M63/00 ,  F02M63/02

CPC分类号： F02M63/0015 ,  F02M45/12 ,  F02M47/025 ,  F02M47/027 ,  F02M61/10 ,  F02M61/161 ,  F02M63/0068 ,  F02M63/0275 ,  F02M2547/001 ,  F02M2547/008

摘要： An injector is designed to provide continuously variable injection rate shaping. With a hydro-mechanical internal feedback mechanism, injector needle position can be determined by controlling a feedback valve's on/off timing. According to the needle position, an injection needle valve opening can be controlled, and then the injection flow rate can be delivered proportionally. Also in accordance with the present invention a CRDI systems are provided including injectors of the present invention, wherein results demonstrate that injector designs of the present invention not only achieve rate shaping capability but also solve the above-noted problems of the current CRDI system. Finally, an iterative learning controller has also been developed to track the desired injection rate, and an injection rate estimator is designed to realize a cycle to cycle feedback control.

摘要翻译： 喷射器被设计成提供连续可变的喷射速率成形。 通过水力机械内部反馈机构，可以通过控制反馈阀的开/关定时来确定喷射器针位置。 根据针位置，可以控制注射针阀开口，然后可以成比例地输送注射流量。 根据本发明，还提供了包括本发明的喷射器的CRDI系统，其结果表明，本发明的喷射器设计不仅实现了速率整形能力，而且还解决了当前CRDI系统的上述问题。 最后，还开发了一种迭代学习控制器来跟踪所需的注入速率，并且注入速率估计器被设计成实现循环以循环反馈控制。

公开(公告)号：US09169813B2

公开(公告)日：2015-10-27

申请号：US14055352

申请日：2013-10-16

申请人： DENSO CORPORATION

发明人： Naofumi Adachi

IPC分类号： F02M47/02 ,  F02M55/00

CPC分类号： F02M47/027 ,  F02M2547/00 ,  F02M2547/008

摘要： A movable plate is movably accommodated in a pressure control chamber. A fixed plate is arranged above the movable plate, so that the movable plate is brought into contact with the fixed plate. The fixed plate has a high pressure passage for supplying fuel into the pressure control chamber and a low pressure passage for discharging the fuel from the pressure control chamber. A high pressure port and a low pressure port are formed at a lower end surface of the fixed plate. A first contacting surface is formed at the lower end surface and a first groove is formed in the first contacting surface for holding a part of fuel in a plate-contacted condition.

摘要翻译： 可动板可移动地容纳在压力控制室中。 固定板设置在可动板上方，使可动板与固定板接触。 固定板具有用于向压力控制室供给燃料的高压通道和用于从压力控制室排出燃料的低压通道。 在固定板的下端面形成高压口和低压口。 第一接触表面形成在下端表面处，并且第一凹槽形成在第一接触表面中，用于将部分燃料保持在板接触状态。

公开(公告)号：US06896198B2

公开(公告)日：2005-05-24

申请号：US10314345

申请日：2002-12-09

申请人： Hermann Koch-Groeber ,  Uemit Canlioglu ,  Thilo Klam ,  Andreas Gaudl ,  Stefan Schuster ,  Christoffer Uhr ,  Andreas Rettich ,  Wolfgang Fleiner ,  Markus Rueckle

发明人： Hermann Koch-Groeber ,  Uemit Canlioglu ,  Thilo Klam ,  Andreas Gaudl ,  Stefan Schuster ,  Christoffer Uhr ,  Andreas Rettich ,  Wolfgang Fleiner ,  Markus Rueckle

IPC分类号： F02M47/00 ,  F02M47/02 ,  F02M51/00 ,  F02M51/06 ,  F02M63/00 ,  F02M41/16 ,  B05B1/30 ,  F02M59/00

CPC分类号： F02M47/027 ,  F02M2200/28 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2547/003 ,  F02M2547/008

摘要： An injector, especially for common rail injection systems of Diesel engines, has a nozzle needle, a control piston for actuating the nozzle needle, a valve that actuates the control piston and that is triggered by via an outlet throttle and an inlet throttle, and a hydraulic stop for the control piston, such that the flow from the inlet throttle to the outlet throttle at the narrowest cross section can additionally be throttled. The control piston is embodied conically on its offset top side oriented toward the outlet throttle or the inlet throttle.

摘要翻译： 特别是用于柴油发动机的共轨喷射系统的喷射器具有喷嘴针，用于致动喷嘴针的控制活塞，致动控制活塞并通过出口节流阀和入口节气门触发的阀，以及 用于控制活塞的液压停止，使得在最窄横截面处的从入口节流阀到出口节流阀的流量可以另外被节流。 控制活塞在其偏移顶面上圆锥形地形成，朝向出口节流阀或入口节气门。

公开(公告)号：US5950600A

公开(公告)日：1999-09-14

申请号：US190305

申请日：1998-11-12

申请人： Mario Ricco

发明人： Mario Ricco

IPC分类号： F02M47/00 ,  F02M47/02 ,  F02M47/06 ,  F02M51/00 ,  F02M51/06 ,  F02M61/16 ,  F02M63/00 ,  F02M41/00

CPC分类号： F02M63/0031 ,  F02M47/027 ,  F02M61/168 ,  F02M63/0036 ,  F02M2547/003 ,  F02M2547/008

摘要： The injector has a hollow body supporting a nozzle, and a metering valve ing a valve body housed in a cylindrical seat in the hollow body; the valve body has a guide seat for a rod controlling the pin of the nozzle; the guide seat terminates with an end surface against which a stop portion of the rod is arrested; the stop portion has a truncated-cone-shaped surface which engages a truncated-cone-shaped portion of the end surface of the guide seat; and the truncated-cone-shaped portion is adjacent to the control chamber and has the same taper as the truncated-cone-shaped surface.

摘要翻译： 注射器具有支撑喷嘴的中空体和具有容纳在中空体中的圆柱形座中的阀体的计量阀; 阀体具有用于控制喷嘴的销的杆的引导座; 导向座终止于杆的止动部分被阻止的端面; 止动部分具有与导向座的端面的截锥形部分接合的截锥形表面; 并且截锥形部分与控制室相邻并且具有与截头圆锥形表面相同的锥度。

公开(公告)号：US20180195476A1

公开(公告)日：2018-07-12

申请号：US15738692

申请日：2016-06-02

申请人： DENSO CORPORATION

发明人： Hiroki TANADA ,  Daiji UEDA

IPC分类号： F02M47/02

CPC分类号： F02M47/02 ,  F02M47/00 ,  F02M47/027 ,  F02M55/008 ,  F02M2547/008

摘要： An enclosure member includes a throughhole that penetrates a cover portion. The cover portion includes a blocking portion that receives an abutment by a wall portion to close an opening of an outflow passage with respect to spaces outside of the enclosure member. The blocking portion is provided so as to surround an opening of the throughhole, and the throughhole is in communication with the outflow passage even when the blocking portion is abutting the wall portion. Further, a spring is outside of a back pressure chamber to bias the enclosure member. The enclosure member itself blocks outside spaces from the back pressure chamber, so the expenditure of high pressure fuel may be controlled, and an injection hole may be opened and closed by a needle.

公开(公告)号：US20120325926A1

公开(公告)日：2012-12-27

申请号：US13167528

申请日：2011-06-23

申请人： Bryan D. MOORE ,  Daniel R. Ibrahim ,  Sana Mahmood ,  Adam Duresky ,  Christopher D. Hanson

发明人： Bryan D. MOORE ,  Daniel R. Ibrahim ,  Sana Mahmood ,  Adam Duresky ,  Christopher D. Hanson

IPC分类号： F02D1/00

CPC分类号： F02M47/027 ,  F02M53/043 ,  F02M63/0017 ,  F02M63/0071 ,  F02M63/0075 ,  F02M2200/28 ,  F02M2547/008

摘要： A fuel injector for an engine is disclosed. The fuel injector may have a fuel nozzle with at least one injection orifice, and a needle element movable within the fuel nozzle between a first position at which the needle element inhibits fuel flow and a second position at which fuel flow is substantially uninhibited. The fuel injector may also have a control chamber located at a base end of the needle element, a body, and a control valve disposed within the body and movable to selectively drain the control chamber, thereby causing the needle element to move between the first and second positions. The fuel injector may further have an armature disposed within an armature cavity of the body and selectively energized to move the control valve, and a pressure reducer disposed within the body and configured to reduce a pressure of the armature cavity.

摘要翻译： 公开了一种用于发动机的燃油喷射器。 燃料喷射器可以具有带有至少一个喷射孔的燃料喷嘴，以及可在燃料喷嘴内可移动的针元件，该第一位置在针元件抑制燃料流动的第一位置和燃料流基本上不被禁止的第二位置之间。 燃料喷射器还可以具有位于针元件的基端的控制室，主体和设置在主体内的控制阀，并且可移动以便选择性地排出控制室，从而使针元件在第一和第 第二职位 燃料喷射器还可以具有设置在主体的电枢腔内的电枢并选择性地通电以移动控制阀，以及设置在主体内并被构造成减小电枢腔的压力的减压器。

公开(公告)号：US20110240768A1

公开(公告)日：2011-10-06

申请号：US13076795

申请日：2011-03-31

申请人： Fumihiro FUJIKAKE ,  Yoichi Kobane ,  Tsukasa Yamashita

发明人： Fumihiro FUJIKAKE ,  Yoichi Kobane ,  Tsukasa Yamashita

IPC分类号： F02M63/00

CPC分类号： F02M47/027 ,  F02M63/0005 ,  F02M2547/001 ,  F02M2547/008

摘要： In a fuel injection device, a pressure control valve is configured to make communication between an outflow port and a return channel and to interrupt the communication so as to control pressure of a fuel in a pressure control chamber, a valve member is configured to open and close a valve portion in response to the pressure of the fuel in the pressure control chamber, and a pressing member is arranged to be reciprocated and displaced in the pressure control chamber. The pressing member has an outer wall surface portion that is opposite to an inner wall surface portion of the control body to be capable of contacting the inner wall surface portion of the control body, and at least one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body is provided with a recess portion that is recessed to a side separated from the other one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body.

摘要翻译： 在燃料喷射装置中，压力控制阀被构造成在流出口和返回通道之间进行连通并且中断通信，以便控制压力控制室中的燃料的压力，阀构件被构造成打开，并且 响应于压力控制室中的燃料的压力关闭阀部分，并且压力构件布置成在压力控制室中往复运动。 按压构件具有与控制体的内壁面部相对的能够与控制体的内壁面部接触的外壁面部，以及压接部的外壁面部中的至少一方 构件和控制体的内壁面部分设置有凹部，该凹部在与按压构件的外壁面部分和控制体的内壁面部分中的另一个分离的一侧凹陷。

公开(公告)号：US20050194462A1

公开(公告)日：2005-09-08

申请号：US10792169

申请日：2004-03-03

申请人： Dana Coldren ,  Mingchun Dong ,  Michael Huffman

发明人： Dana Coldren ,  Mingchun Dong ,  Michael Huffman

IPC分类号： F02M47/02

CPC分类号： F02M57/023 ,  F02M47/027 ,  F02M59/366 ,  F02M2547/008

摘要： An electronically controlled fuel injector includes a reduced part count and complexity over similar fuel injectors without a substantial reduction in performance capabilities. This is accomplished by using a one-piece needle that is hydraulically balanced and biased toward a closed position with a spring positioned in the needle control chamber. Although subtle, this injector has some ability to control the fuel pressure when the needle valve is opening and closing by adjusting a relative timing of a pressure control valve opening relative to a needle control chamber, using separate electrical actuators. The invention is particularly applicable to fuel injectors that cycle through high and low pressure states during and between injection events, respectively. Cam actuated fuel injectors being particularly well suited.

摘要翻译： 电子控制的燃料喷射器包括相对于类似的燃料喷射器的减少的部件数目和复杂性，而性能能力没有显着降低。 这是通过使用液压平衡的单件针并且通过设置在针控制室中的弹簧朝向关闭位置偏置来实现的。 虽然微妙，但是通过使用单独的电致动器调节针阀相对于针控制室的压力控制阀开口的相对定时，该喷射器具有一些能力来控制针阀打开和关闭时的燃料压力。 本发明特别适用于在喷射事件期间和之间分别在高压状态和低压状态下循环的燃料喷射器。 凸轮致动燃油喷射器特别适合。

公开(公告)号：USRE37633E1

公开(公告)日：2002-04-09

申请号：US09490874

申请日：2000-01-24

申请人： Tsutomu Fuseya

发明人： Tsutomu Fuseya

IPC分类号： F02M3704

CPC分类号： F02M61/1806 ,  F02M45/08 ,  F02M45/12 ,  F02M47/027 ,  F02M61/042 ,  F02M61/06 ,  F02M61/161 ,  F02M63/0017 ,  F02M63/0019 ,  F02M63/0056 ,  F02M63/0063 ,  F02M63/0066 ,  F02M63/0068 ,  F02M2200/21 ,  F02M2547/008

摘要： This accumulating fuel injection apparatus is provided with a needle valve 6 adapted to open and close an injection nozzle 11 having injection ports 14 in a lower end portion thereof, a balancing chamber 5 formed in a casing 2 so as to apply a fuel pressure to a head portion of the needle valve 6, a supply passage including a slit 10 and used for supplying a fuel from a fuel supply port 19 to the balancing chamber 5, a discharge passage 20 comprising an orifice for discharging the fuel from the balancing chamber 5, and a solenoid valve 22 adapted to open and close the discharge passage 20, the lift of a valve disc 26 of the solenoid valve 22 is controlled by a lift control means comprising a stopper 28 the position of which is controlled by a lift control mechanism 23. The opening area of the discharge passage 20 comprising an orifice increases and decreases in accordance with the lift of the valve disc 26, and the lift of the needle valve 6 is determined so that the opening area of the slit 10 facing the interior of the balancing chamber 5 increases and decreases correspondingly to the flow rate of the fuel passing through the discharge passage 20, the degree of opening of the injection nozzle 11 increasing and decreasing accordingly.

摘要翻译： 该积存燃料喷射装置设置有针阀6，其适于打开和关闭其下端部具有喷射口14的喷嘴11，形成在壳体2中的喷射口14，以将燃料压力施加到 针阀6的头部，包括狭缝10并用于从燃料供给口19向平衡室5供给燃料的供给通路，包括用于从平衡室5排出燃料的喷口的排出通路20， 以及适于打开和关闭排放通道20的电磁阀22，电磁阀22的阀盘26的提升由一个提升控制装置控制，该升降控制装置包括止挡件28，该挡块28的位置由一升降控制机构23 包括孔口的排出通道20的开口面积根据阀盘26的升程而增加和减小，并且确定针阀6的提升，使得开口面积 e狭缝10面对平衡室5的内部，与通过排出通道20的燃料的流量相应地增加和减小，喷嘴11的打开程度相应地增加和减小。

公开(公告)号：US5711277A

公开(公告)日：1998-01-27

申请号：US776698

申请日：1997-02-06

申请人： Tsutomu Fuseya

发明人： Tsutomu Fuseya

IPC分类号： F02M45/08 ,  F02M45/12 ,  F02M47/02 ,  F02M59/46 ,  F02M61/04 ,  F02M61/06 ,  F02M61/16 ,  F02M61/18 ,  F02M63/00 ,  F02M37/04

CPC分类号： F02M61/1806 ,  F02M45/08 ,  F02M45/12 ,  F02M47/027 ,  F02M61/042 ,  F02M61/06 ,  F02M61/161 ,  F02M63/0017 ,  F02M63/0019 ,  F02M63/0056 ,  F02M63/0063 ,  F02M63/0066 ,  F02M63/0068 ,  F02M2200/21 ,  F02M2547/008

摘要： This accumulating fuel injection apparatus is provided with a needle valve 6 adapted to open and close an injection nozzle 11 having injection ports 14 in a lower end portion thereof, a balancing chamber 5 formed in a casing 2 so as to apply a fuel pressure to a head portion of the needle valve 6, a supply passage including a slit 10 and used for supplying a fuel from a fuel supply port 19 to the balancing chamber 5, a discharge passage 20 comprising an orifice for discharging the fuel from the balancing chamber 5, and a solenoid valve 22 adapted to open and close the discharge passage 20, the lift of a valve disc 26 of the solenoid valve 22 is controlled by a lift control means comprising a stopper 28 the position of which is controlled by a lift control mechanism 23. The opening area of the discharge passage 20 comprising an orifice increases and decreases in accordance with the lift of the valve disc 26, and the lift of the needle valve 6 is determined so that the opening area of the slit 10 facing the interior of the balancing chamber 5 increases and decreases correspondingly to the flow rate of the fuel passing through the discharge passage 20, the degree of opening of the injection nozzle 11 increasing and decreasing accordingly.

摘要翻译： PCT No.PCT / JP96 / 02218 Sec。 371日期1997年2月6日 102（e）日期1997年2月6日PCT提交1996年8月6日PCT公布。 公开号WO97 / 08452 日期1997年3月6日该积存燃料喷射装置设置有针阀6，其适于打开和关闭其下端部具有喷射口14的喷射喷嘴11，形成在壳体2中的平衡室5以便施加 对针阀6的头部的燃料压力，包括狭缝10并用于将燃料从燃料供给口19供给到平衡室5的供给通路，排出通道20，其包括用于从燃料供给口19排出燃料的孔 平衡室5和适于打开和关闭排出通道20的电磁阀22，电磁阀22的阀盘26的提升由包括挡块28的升降控制装置控制，该挡块28的位置由 升降控制机构23.包括孔口的排出通道20的开口面积根据阀盘26的升程而增加和减小，并且针阀6的升程被确定为使得o 面对平衡室5的狭缝10的起毛面积相应于通过排出通道20的燃料的流量而增加和减小，喷嘴11的打开程度相应地增加和减小。