公开(公告)号：US20180187616A1

公开(公告)日：2018-07-05

申请号：US15738521

申请日：2016-06-15

Applicant: CONTINENTAL AUTOMOTIVE GMBH

Inventor： Nicolas NOZERAN ,  Tany GARGISO ,  Hans-Jörg WIEHOFF

IPC: F02D41/00 ,  F02D41/24 ,  F02M51/06

CPC classification number: F02D41/008 ,  F02D41/064 ,  F02D41/2096 ,  F02D41/2467 ,  F02D41/40 ,  F02D2041/2065 ,  F02D2200/021 ,  F02D2200/063 ,  F02M45/12 ,  F02M51/0603 ,  F02M2200/21 ,  Y02T10/44

Abstract: The invention relates to a method and a device for actuating an injection valve, which has a piezo actuator and a nozzle needle, of a fuel injection system of an internal combustion engine, in which method a control unit, in a manner dependent on a setpoint stroke height of the piezo actuator in successive injection cycles, outputs a control signal for changing the actual stroke height of the piezo actuator, characterized in that the control unit changes the setpoint stroke height of the piezo actuator, for compensation of the temperature dependency of the capacitance of the piezo actuator, in a manner dependent on the temperature of said piezo actuator.

公开(公告)号：US09855591B2

公开(公告)日：2018-01-02

申请号：US14414516

申请日：2013-07-03

Applicant: Continental Automotive GmbH

Inventor： Willibald Schuerz

IPC: B21D15/00 ,  H01L41/053 ,  H01L41/23 ,  B21D51/16 ,  F02M51/06

CPC classification number: B21D15/00 ,  B21D51/16 ,  F02M51/0603 ,  F02M2200/21 ,  F02M2200/9061 ,  H01L41/0536 ,  H01L41/23 ,  Y10T29/49826

Abstract: A solid actuator has an actuator structural unit, a top plate and a base plate. A hollow cylinder part made of maraging steel is heated to a predetermined first temperature at which the maraging steel is in an austenitic state. A corrugated tube is shaped from the hollow cylinder part by a shaping process, while the maraging steel is still in an austenitic state. The corrugated tube is cooled such that the maraging steel is in a martensitic state. The actuator structural unit is inserted into the corrugated tube. The top plate and the base plate are fixed to the corrugated tube such that the actuator structural unit is clamped between the top plate and the base plate at a predetermined pre-tension.

公开(公告)号：US09791055B2

公开(公告)日：2017-10-17

申请号：US14285220

申请日：2014-05-22

Applicant: C.R.F. Societa Consortile per Azioni

Inventor： Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Marcello Gargano ,  Domenico Lepore ,  Chiara Altamura

IPC: F02M51/00 ,  F16K11/044 ,  F16K11/10 ,  F16K31/00 ,  F16K31/06 ,  F02M61/04 ,  F02M63/00 ,  F02M47/04

CPC classification number: F16K11/044 ,  F02M47/043 ,  F02M47/046 ,  F02M61/04 ,  F02M63/0007 ,  F02M63/0026 ,  F02M63/0045 ,  F02M63/0049 ,  F02M2200/21 ,  F16K11/10 ,  F16K31/007 ,  F16K31/008 ,  F16K31/061 ,  F16K31/0624 ,  Y10T137/86919

Abstract: An electrically actuated control valve has three mouths and three operating positions, in which the three mouths includes a first mouth for inlet of a working fluid, and a second mouth and a third mouth for outlet of the working fluid. The three operating positions include a first operating position in which a passage of fluid from the first mouth to the second mouth and the third mouth is enabled, a second operating position in which a passage of fluid from the first mouth to only one of said second and third mouths is enabled, and a third operating position in which the passage of fluid from the first to the second mouth and the third mouth is disabled. The control valve includes an electric or electromagnetic actuator for controlling the passage of fluid from the first mouth to the second and third mouths providing the aforesaid three operating positions.

公开(公告)号：US09273627B2

公开(公告)日：2016-03-01

申请号：US13984236

申请日：2012-02-01

Applicant: Martin Brandt

Inventor： Martin Brandt

IPC: F02D41/20 ,  H01L41/04 ,  F02M51/06 ,  F02D41/24 ,  F02M47/02 ,  F02M63/00 ,  F02D41/30

CPC classification number: F02D41/2096 ,  F02D41/247 ,  F02D41/30 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2200/0602 ,  F02M47/027 ,  F02M51/0603 ,  F02M63/0026 ,  F02M63/0035 ,  F02M2200/21 ,  F02M2200/703 ,  H01L41/04 ,  H01L41/042 ,  H01L41/044

Abstract: An injection device for an internal combustion engine includes a piezo actuator for moving a valve piston, and a control unit for actuating the piezo actuator. The control unit supplies electrical pulses having different pulse energy to the piezo actuator and determines a return stroke between the piezo actuator and valve piston or a time delay caused by the return stroke. The control unit selects the pulse energies such that a maximum excursion of a movement of the piezo actuator caused by at least one pulse is smaller than the return stroke, whereas a maximum excursion of a piezo actuator movement caused by another pulse(s) is greater than the return stroke, after each of the pulses detects a frequency spectrum of a voltage signal at the piezo actuator during the movement caused by the respective pulse, and determines the return stroke or time delay based on these frequency spectra.

Abstract translation: 用于内燃机的注射装置包括用于移动阀活塞的压电致动器和用于致动压电致动器的控制单元。 控制单元向压电致动器提供具有不同脉冲能量的电脉冲，并且确定压电致动器和阀活塞之间的返回行程或由返回行程引起的时间延迟。 控制单元选择脉冲能量，使得由至少一个脉冲引起的压电致动器的运动的最大偏移小于返回行程，而由另一个脉冲引起的压电致动器运动的最大偏移更大 在每个脉冲检测到由各个脉冲引起的移动期间在压电致动器处的电压信号的频谱，并且基于这些频谱确定返回行程或时间延迟。

公开(公告)号：US20140346258A1

公开(公告)日：2014-11-27

申请号：US14285220

申请日：2014-05-22

Applicant: C.R.F. Societa Consortile per Azioni

Inventor： Sergio STUCCHI ,  Raffaele RICCO ,  Onofrio DE MICHELE ,  Marcello GARGANO ,  Domenico LEPORE ,  Chiara ALTAMURA

IPC: F16K11/044 ,  F16K31/06 ,  F02M61/04 ,  F16K31/00

CPC classification number: F16K11/044 ,  F02M47/043 ,  F02M47/046 ,  F02M61/04 ,  F02M63/0007 ,  F02M63/0026 ,  F02M63/0045 ,  F02M63/0049 ,  F02M2200/21 ,  F16K11/10 ,  F16K31/007 ,  F16K31/008 ,  F16K31/061 ,  F16K31/0624 ,  Y10T137/86919

Abstract: An electrically actuated control valve has three mouths and three operating positions, in which the three mouths includes a first mouth for inlet of a working fluid, and a second mouth and a third mouth for outlet of the working fluid. The three operating positions include a first operating position in which a passage of fluid from the first mouth to the second mouth and the third mouth is enabled, a second operating position in which a passage of fluid from the first mouth to only one of said second and third mouths is enabled, and a third operating position in which the passage of fluid from the first to the second mouth and the third mouth is disabled. The control valve includes an electric or electromagnetic actuator for controlling the passage of fluid from the first mouth to the second and third mouths providing the aforesaid three operating positions.

Abstract translation: 电动控制阀具有三个口和三个操作位置，其中三个口包括用于工作流体入口的第一口，以及用于工作流体出口的第二口和第三口。 三个操作位置包括第一操作位置，在该第一操作位置中，流体从第一口到第二口和第三口能够通过;第二操作位置，其中流体从第一口到所述第二口中的一个通过 并且第三口被启用，并且第三操作位置，其中流体从第一口到第二口和第三口的通过被禁用。 控制阀包括电动或电磁致动器，用于控制流体从第一口到达第二和第三口的通道，从而提供上述三个操作位置。

公开(公告)号：US20130327301A1

公开(公告)日：2013-12-12

申请号：US13984236

申请日：2012-02-01

Applicant: Martin Brandt

Inventor： Martin Brandt

IPC: F02D41/30

CPC classification number: F02D41/2096 ,  F02D41/247 ,  F02D41/30 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2200/0602 ,  F02M47/027 ,  F02M51/0603 ,  F02M63/0026 ,  F02M63/0035 ,  F02M2200/21 ,  F02M2200/703 ,  H01L41/04 ,  H01L41/042 ,  H01L41/044

Abstract: An injection device for an internal combustion engine includes a piezo actuator for moving a valve piston, and a control unit for actuating the piezo actuator. The control unit supplies electrical pulses having different pulse energy to the piezo actuator and determines a return stroke between the piezo actuator and valve piston or a time delay caused by the return stroke. The control unit selects the pulse energies such that a maximum excursion of a movement of the piezo actuator caused by at least one pulse is smaller than the return stroke, whereas a maximum excursion of a piezo actuator movement caused by another pulse(s) is greater than the return stroke, after each of the pulses detects a frequency spectrum of a voltage signal at the piezo actuator during the movement caused by the respective pulse, and determines the return stroke or time delay based on these frequency spectra.

Abstract translation: 用于内燃机的注射装置包括用于移动阀活塞的压电致动器和用于致动压电致动器的控制单元。 控制单元向压电致动器提供具有不同脉冲能量的电脉冲，并且确定压电致动器和阀活塞之间的返回行程或由返回行程引起的时间延迟。 控制单元选择脉冲能量，使得由至少一个脉冲引起的压电致动器的运动的最大偏移小于返回行程，而由另一个脉冲引起的压电致动器运动的最大偏移更大 在每个脉冲检测到由各个脉冲引起的移动期间在压电致动器处的电压信号的频谱，并且基于这些频谱确定返回行程或时间延迟。

公开(公告)号：US20130240639A1

公开(公告)日：2013-09-19

申请号：US13884772

申请日：2011-10-18

Applicant: Holger Rapp ,  Helmut Clauss ,  Wolfgang Stoecklein ,  Bernd Berghaenel ,  Marco Beier ,  Changyi Wang

Inventor： Holger Rapp ,  Helmut Clauss ,  Wolfgang Stoecklein ,  Bernd Berghaenel ,  Marco Beier ,  Changyi Wang

IPC: F02M57/00

CPC classification number: F02M57/005 ,  F02M47/027 ,  F02M2200/16 ,  F02M2200/21 ,  F02M2200/244 ,  F02M2200/247

Abstract: The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, comprising a nozzle needle (1) which is able to perform stroke motions and by the stroke motion of which at least one injection opening can be exposed or closed, and further comprising a control valve (2) for controlling the stroke motion of the nozzle needle (1) in that, depending on the respective switch position of the control valve (2), hydraulic pressure applied in closing direction to the nozzle needle (1) in a control chamber (3) is altered, and further comprising a sensor array (4) for detecting the needle closing time. According to the invention, the sensor array (4) is arranged in the low-pressure area of the fuel injector in a space (5) which is sealed with respect to the fuel-conducting area (6). Sealing of the space (5) is effected by a membrane (7) made of a fuel-resistant, electrically conductive material, allowing the membrane (7) to also be utilized for implementing a ground connection.

Abstract translation: 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器，其包括能够执行冲击运动的喷嘴针（1）和能够暴露至少一个喷射开口的冲程运动 并且还包括用于控制喷嘴针（1）的冲程运动的控制阀（2），其中，根据控制阀（2）的各个开关位置，在关闭方向上施加到喷嘴针的液压 （1）在控制室（3）中被改变，并且还包括用于检测针闭合时间的传感器阵列（4）。 根据本发明，传感器阵列（4）布置在燃料喷射器的低压区域中，该空间（5）相对于燃料传导区域（6）被密封。 通过由耐燃导电材料制成的膜（7）来实现空间（5）的密封，从而允许膜（7）用于实现接地连接。

公开(公告)号：US07966871B2

公开(公告)日：2011-06-28

申请号：US12427089

申请日：2009-04-21

Applicant: Louisa J. Perryman ,  Daniel Jeremy Hopley

Inventor： Louisa J. Perryman ,  Daniel Jeremy Hopley

IPC: G01M15/04

CPC classification number: F02D41/221 ,  F02D41/2096 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2072 ,  F02D2041/2082 ,  F02D2041/2093 ,  F02M2200/21

Abstract: A method of identifying an individual short circuit fuel injector, within an injector bank of an engine comprising a plurality of fuel injectors. Each fuel injector has a piezoelectric actuator and an associated injector select switch forming part of an injector drive circuit. The method comprises: (i) charging all of the piezoelectric actuators of the plurality of fuel injectors within the injector bank during a charge phase; (ii) at the end of the charge phase waiting for a delay period; and (iii) subsequently closing an injector select switch of a fuel injector to select said fuel injector. The method further comprises: (iv) determining a stack voltage present on terminals of the piezoelectric actuator of the selected fuel injector and storing the stack voltage in a data store. The stack voltage is indicative of an amount of charge present on the selected injector at the end of the delay period. The method further comprises (v) repeating steps (i) to (iv) for each fuel injector in the injector bank in turn; and (vi) identifying the individual short circuit fuel injector as being the injector which has discharged beyond a predetermined voltage drop limit during the delay period. The method also comprises generating a short circuit fault signal for the identified fuel injector.

Abstract translation: 一种在包括多个燃料喷射器的发动机的喷射器组内识别单个短路燃料喷射器的方法。 每个燃料喷射器具有形成喷射器驱动电路的一部分的压电致动器和相关联的喷射器选择开关。 该方法包括：（i）在充电阶段期间对喷射器组内的多个燃料喷射器的所有压电致动器进行充电; （ii）在充电期结束时等待延迟期; 和（iii）随后关闭燃料喷射器的喷射器选择开关以选择所述燃料喷射器。 该方法还包括：（iv）确定存在于所选择的燃料喷射器的压电致动器的端子上的堆叠电压并将堆叠电压存储在数据存储器中。 堆叠电压表示在延迟周期结束时在所选择的喷射器上存在的电荷量。 该方法还包括（v）依次对喷射器组中的每个燃料喷射器重复步骤（i）至（iv）; 以及（vi）将所述单个短路燃料喷射器识别为在所述延迟期间已经放电超过预定电压下降极限的所述喷射器。 该方法还包括产生用于识别的燃料喷射器的短路故障信号。

公开(公告)号：US07934668B2

公开(公告)日：2011-05-03

申请号：US12291667

申请日：2008-11-12

Applicant: Michael Peter Cooke ,  Godfrey Greeves ,  Nebojsa Milovanovic

Inventor： Michael Peter Cooke ,  Godfrey Greeves ,  Nebojsa Milovanovic

IPC: F02M61/00

CPC classification number: F02M45/086 ,  F02B1/12 ,  F02B3/06 ,  F02D19/061 ,  F02D19/0642 ,  F02D19/0657 ,  F02D19/0694 ,  F02D19/08 ,  F02D19/081 ,  F02M43/04 ,  F02M51/0603 ,  F02M61/042 ,  F02M61/182 ,  F02M2200/21 ,  F02M2200/46 ,  F02M2200/703 ,  Y02T10/36

Abstract: A fuel injector for use in an internal combustion engine, comprising a nozzle body being provided with a nozzle bore and at least one set of one or more outlets for fluid, an outer valve member received within the nozzle bore and being engageable with a first seating region of the nozzle body to control the flow of a first fluid from a first delivery chamber, the outer valve member being provided with an outer valve bore, and an inner valve member received within the outer valve bore and being engageable with a second seating region of the nozzle body to control the flow of a second fluid from a second delivery chamber. In various embodiments, the fuel injector can be arranged to allow the first and second fluids to be injected separately and/or together. In one embodiment, the first and second fluids can be mixed within the injector before injection.

Abstract translation: 一种用于内燃机的燃料喷射器，包括一喷嘴主体，该喷嘴主体设置有喷嘴孔和至少一组用于流体的一个或多个出口，外部阀构件，其容纳在喷嘴孔内并可与第一座 喷嘴体的区域，以控制来自第一输送室的第一流体的流动，所述外阀构件设置有外阀孔，以及容纳在外阀孔内的内阀构件，并且可与第二阀座区域接合 以控制来自第二输送室的第二流体的流动。 在各种实施例中，燃料喷射器可以被布置成允许第一和第二流体被单独地和/或一起注入。 在一个实施例中，第一和第二流体可以在注射之前在注射器内混合。

公开(公告)号：US07900605B2

公开(公告)日：2011-03-08

申请号：US12470058

申请日：2009-05-21

Applicant: Philip J. G. Dingle

Inventor： Philip J. G. Dingle

IPC: F02M63/00 ,  F02D41/30

CPC classification number: F02M61/168 ,  F02D41/2467 ,  F02D41/3827 ,  F02D41/40 ,  F02D2041/1433 ,  F02D2200/0602 ,  F02D2200/0604 ,  F02M57/005 ,  F02M2200/21 ,  F02M2200/24 ,  F02M2200/247 ,  F02M2200/8092 ,  Y02T10/44

Abstract: A fuel injector for an internal combustion engine, the fuel injector comprising an injector body, a fuel supply passage defined in the injector body, the fuel supply passage containing fuel under high pressure in use of the injector, a pressure sensor for measuring the pressure of fuel in the passage in use, wherein the pressure sensor is situated within the injector body and is separated from fuel in the passage in use, and a method of fuel injection, comprising constructing an hydraulic behavior profile by fuel pressure measurement, using the hydraulic behavior profile to predict fuel pressure that will prevail in a fuel injector during an injection event, and supplying a control signal to the fuel injector to control the amount of fuel injected during the injection event in accordance with the predicted fuel pressure. By predicting the fuel pressure that will prevail during an injection event, the fuel delivered during the injection event can be accurately controlled.

Abstract translation: 一种用于内燃机的燃料喷射器，所述燃料喷射器包括喷射器主体，限定在所述喷射器主体中的燃料供给通道，所述燃料供给通道在所述喷射器的使用中在高压下容纳燃料;压力传感器， 燃料在使用中的通道中，其中压力传感器位于喷射器主体内并与使用中的通道中的燃料分离，以及燃料喷射方法，包括通过燃料压力测量来构造液压行为特性，使用液压行为 以预测在喷射事件期间在燃料喷射器中占优势的燃料压力，以及根据预测的燃料压力向燃料喷射器提供控制信号以控制在喷射事件期间喷射的燃料量。 通过预测在喷射事件期间将占优势的燃料压力，可以精确地控制在喷射事件期间输送的燃料。