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公开(公告)号：US6148660A
公开(公告)日：2000-11-21
申请号：US160396
申请日：1998-09-25
申请人： Randolph Kwok-Kin Chiu , Charles Dale Oakley , Russell Harmon Bosch , Magnus Glavmo , Hiroshi Takayama , Keisuke Okajima
发明人： Randolph Kwok-Kin Chiu , Charles Dale Oakley , Russell Harmon Bosch , Magnus Glavmo , Hiroshi Takayama , Keisuke Okajima
CPC分类号： F02P19/028 , F23Q7/001 , F23Q2007/002
摘要： A glow sensor which combines functions of a diesel engine glow plug with an ion sensor for sensing engine combustion initiation and characteristics includes a ceramic rod retained in a supporting ceramic sleeve carried by a metal shell mountable in an engine cylinder head. The ceramic rod includes a heating element in a glow tip at the inner end of the rod which, in use, extends into an engine combustion chamber or pre-chamber. A conductive material such as platinum or palladium is coated on the lower end of the glow tip and connected by a conductor with a source of electric voltage. In use, the voltage produces a current carried by electrons generated by ionization of the combustion chamber gases during combustion. The current varies with the degree of ionization and the amount of electrons generated during various phases of the combustion event. The resulting information is usable in controlling engine operation or evaluating its operation for test purposes. Various construction features of disclosed embodiments include an internal conductor through the ceramic rod from the platinum or palladium material to a lead or an external conductor applied on the surface of the ceramic rod with which an insulating ceramic sleeve is utilized to mount the rod within its supporting shell. Grounding connections through an additional lead from the outer end of the ceramic rod or via metallic connections through the ceramic sleeve to the shell are alternatively disclosed.
摘要翻译： 将柴油发动机预热塞与用于感测发动机燃烧起动和特性的离子传感器的功能组合的辉光传感器包括保持在由可安装在发动机气缸盖中的金属壳承载的支撑陶瓷套筒中的陶瓷棒。 陶瓷棒包括在杆的内端处的辉光尖端中的加热元件，其在使用中延伸到发动机燃烧室或预制室中。 诸如铂或钯的导电材料涂覆在辉光尖端的下端，并由具有电压源的导体连接。 在使用中，电压产生由燃烧室内的燃烧室气体的电离产生的电子携带的电流。 电流随着电离的程度和在燃烧事件的各个阶段期间产生的电子的量而变化。 所得到的信息可用于控制发动机操作或评估其操作用于测试目的。 所公开的实施例的各种结构特征包括通过陶瓷棒从铂或钯材料到引线或外部导体的内部导体，该导体或外部导体施加在陶瓷棒的表面上，通过该导体或外部导体使用绝缘陶瓷套管将杆安装在其支撑 贝壳。 可选地公开了通过陶瓷棒的外端的附加引线或经由穿过陶瓷套管的金属连接到壳体的接地连接。
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公开(公告)号：US07145282B2
公开(公告)日：2006-12-05
申请号：US10891690
申请日：2004-07-15
申请人： Charles Dale Oakley , Rick Daniel Kerr , Giulio Angel Ricci-Ottati , Russell Harmon Bosch , Hermann Breitbach , Manfred Kolkman
发明人： Charles Dale Oakley , Rick Daniel Kerr , Giulio Angel Ricci-Ottati , Russell Harmon Bosch , Hermann Breitbach , Manfred Kolkman
IPC分类号： H01L41/083 , H01L41/053
CPC分类号： H01L41/053 , H01L41/0536 , H01L41/083
摘要： An actuator includes a piezoelectric stack within a housing that applies a compressive load to the stack. The housing may include a cylindrical tube closed at one end and may seal the stack against fluid pressure. The housing may be shorter than the length of the piezoelectric stack and may include resilient means for inducing elastic strain in the stack. The resilient means may include one or more slots extending around the circumference of the housing and/or a corrugated region of the housing to form a tension spring at a lower end of the housing. The tension spring may then serve to draw the stack into compression. The stack may include a plurality of layers of piezoelectric or piezoceramic material interspersed with a plurality of layers of electrically conductive material and connecting means for connecting the layers to a source of electrical power.
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3.发明授权公开(公告)号：US06520423B1
公开(公告)日：2003-02-18
申请号：US10025709
申请日：2000-07-13
IPC分类号： F02M4702
CPC分类号： F02M51/0603 , F02M47/06 , F02M61/10 , F02M61/165 , F02M61/167 , F02M61/168 , F02M2200/704
摘要： A piezoelectric actuated fuel injector is provided for use in conjunction with an internal combustion engine. The fuel injector includes a piezoelectric actuator for actuating an injector valve, and a hydraulic assembly for interfacing between the piezoelectric actuator and the injector valve, where the injector valve axially separates from a discharge outlet in response to longitudinal expansion of the piezoelectric actuator, thereby allowing fuel flow from the fuel injector.
摘要翻译： 提供一种与内燃机一起使用的压电致动燃料喷射器。 燃料喷射器包括用于致动喷射器阀的压电致动器和用于在压电致动器和喷射阀之间进行接口的液压组件，其中喷射器阀响应于压电致动器的纵向膨胀而与排出口轴向分离，从而允许 来自燃料喷射器的燃料流。
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4.发明授权Method for controlling fuel rail pressure using a piezoelectric actuated fuel injector 失效使用压电致动燃料喷射器控制燃油轨压力的方法公开(公告)号：US06345606B1
公开(公告)日：2002-02-12
申请号：US09548223
申请日：2000-04-12
IPC分类号： F02M3704
CPC分类号： F02D41/3872 , F02D41/2096 , F02D2200/0602 , F02D2250/04 , F02D2250/31 , F02M47/027 , F02M63/0026 , F02M63/0225 , F02M2200/703
摘要： A fuel injection system is provided for controlling fuel pressure in a common rail through the use of a piezoelectric actuated fuel injector. The fuel injection system includes at least one fuel injector having an axially extending fuel passage therein, a control chamber disposed in the injector, an injector valve axially movable within the fuel passage in accordance with a fuel pressure in the control chamber, and a piezoelectric actuator for actuating the control valve. The fuel injection system further includes a pressure sensor for determining a fuel pressure in the common rail, and a controller electrically connected to the pressure sensor and to the piezoelectric actuator of the fuel injector.
摘要翻译： 提供了一种燃料喷射系统，用于通过使用压电致动燃料喷射器来控制公共轨道中的燃料压力。 燃料喷射系统包括至少一个燃料喷射器，其中具有轴向延伸的燃料通道，设置在喷射器中的控制室，可根据控制室中的燃料压力在燃料通道内轴向移动的喷射阀，以及压电致动器 用于启动控制阀。 燃料喷射系统还包括用于确定共轨中的燃料压力的压力传感器，以及与压力传感器和燃料喷射器的压电致动器电连接的控制器。
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公开(公告)号：US06260541B1
公开(公告)日：2001-07-17
申请号：US09558515
申请日：2000-04-26
IPC分类号： F02M3704
CPC分类号： F02M63/0026 , F02M47/027 , F02M61/167 , F02M2200/703
摘要： A hydraulic lash adjuster is provided for interfacing between a piezoelectric element and a control valve in a piezoelectric actuated fuel injector. The hydraulic lash adjuster includes an inner plunger having an axial passage for storing a working fluid therein, and an outer body having a socket dimensioned to receive the inner plunger. The inner plunger is movably coupled into the socket of the outer body so as to form a working chamber between a bottom outer surface of the inner plunger and a bottom surface of the socket in the outer body. The hydraulic lash adjuster further includes a feed valve assembly disposed in the passage of the inner plunger for providing the working fluid from the passage to the working chamber, thereby minimizing the volume of the working chamber.
摘要翻译： 提供了液压间隙调节器，用于在压电致动燃料喷射器中的压电元件和控制阀之间进行接口。 液压间隙调节器包括具有用于在其中存储工作流体的轴向通道的内柱塞和具有尺寸设置成容纳内柱塞的插座的外体。 内柱塞可移动地联接到外体的插座中，以便在内柱塞的底部外表面和外体中的插座的底表面之间形成工作室。 液压间隙调节器还包括设置在内柱塞的通道中的供给阀组件，用于将工作流体从通道提供到工作室，从而最小化工作室的体积。
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6.发明授权Method for detecting injection events in a piezoelectric actuated fuel injector 有权用于检测压电致动燃料喷射器中的喷射事件的方法公开(公告)号：US06420817B1
公开(公告)日：2002-07-16
申请号：US09614153
申请日：2000-07-11
申请人： Giulio Angel Ricci-Ottati , Russell Harmon Bosch , Kenneth David Mowery , Martin Paul Hardy , Andrew John Hargreaves
发明人： Giulio Angel Ricci-Ottati , Russell Harmon Bosch , Kenneth David Mowery , Martin Paul Hardy , Andrew John Hargreaves
IPC分类号： F02M3708
CPC分类号： F02M65/005 , F02D41/2096 , F02D41/401 , F02D2041/2051 , F02D2041/2055 , F02M47/027 , F02M51/005 , F02M63/0026 , F02M63/004 , F02M63/0043 , F02M65/00 , F02M2547/003 , Y02T10/44
摘要： A method is provided for detecting injection events in a piezoelectric actuated fuel injector. The method comprises the steps of: (a) providing a piezoelectric element for actuating the injector valve; (b) applying a voltage to the piezoelectric element, thereby actuating the injector valve; and (c) monitoring at least one of the voltage or current associated with the piezoelectric element, wherein changes in voltage or current are indicative of injection events in the fuel injector.
摘要翻译： 提供一种用于检测压电致动燃料喷射器中的喷射事件的方法。 该方法包括以下步骤：（a）提供用于致动喷射阀的压电元件; （b）向压电元件施加电压，从而致动喷射器阀; 和（c）监测与压电元件相关联的电压或电流中的至少一个，其中电压或电流的变化指示燃料喷射器中的喷射事件。
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公开(公告)号：US06375098B1
公开(公告)日：2002-04-23
申请号：US09544891
申请日：2000-04-07
IPC分类号： F02M6110
CPC分类号： F02M55/005 , F02M61/16
摘要： The invention relates to an injection valve (10) for the fuel injection in a internal combustion engine, in particular in a diesel engine. The injection valve (10) has a holder body (20) in which a first passage (30) is formed. At the holder body (20) a nozzle body (40) of an injection nozzle (16) is secured in which a second passage (54) is formed which is connected to the first passage (30) and which together with the latter forms a fuel infeed line for the injection nozzle (16). Moreover, a closure mechanism (60) is provided for the closing off of the injection nozzle (16). A sleeve (74) serves for the sealing off of the connection point between the first and the second passage (30, 54).
摘要翻译： 本发明涉及一种用于在内燃机中特别是柴油发动机中的燃料喷射的喷射阀（10）。 注射阀（10）具有保持体（20），其中形成有第一通道（30）。 在保持器主体（20）上，固定着喷嘴（16）的喷嘴主体（40），其中形成有与第一通道（30）连接的第二通道（54），并且与喷嘴 用于喷嘴（16）的燃料供给管线。 此外，设置有用于关闭喷嘴（16）的闭合机构（60）。 套筒（74）用于密封第一和第二通道（30,54）之间的连接点。
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公开(公告)号：US6092737A
公开(公告)日：2000-07-25
申请号：US241720
申请日：1999-02-02
CPC分类号： F02M47/027 , F02M63/0017 , F02M2200/28 , F02M2547/008
摘要： An electrically controlled hydraulic actuated fuel injector wherein the amount of return fuel flow is substantially reduced without adversely affecting injection valve operation. An improved control valve armature valve disk of faster acting construction is also included. In one embodiment, dual pressurizing passages of differing diameters provide lower total fuel flow to a control chamber than the outflow through a depressurizing passage controlled by a control valve. Upon full opening of the injection valve, all return fuel flow is supplied to the control chamber through the smaller pressurizing passage, thereby reducing the requirement for pressure fuel flow. Upon closing of the control valve, cutting off discharge through the depressurizing passage, both of the dual pressurizing passages help fill the control chamber to quickly close the injection valve. The improved control valve armature is a small magnetically responsive disk fixed to a metal guide shim having a periphery clamped in the injector housing. Integral fingers of the shim are fixed to the disk, guiding its opening and closing motion free from rubbing on the housing. The fingers lie near the periphery of the shim and disk, allowing room for fuel flow between the disk and an associated solenoid to which the disk is attracted when the control valve is open. Hydraulic resistance to closing of the control valve is thus reduced.
摘要翻译： 一种电控液压致动燃料喷射器，其中返回燃料流量大大降低，而不会不利地影响喷射阀操作。 还包括一个改进的控制阀电枢阀盘，速度更快的结构。 在一个实施例中，具有不同直径的双加压通道提供比通过由控制阀控制的减压通道的流出更低的控制室的总燃料流量。 当喷射阀完全打开时，所有的返回燃料流通过较小的加压通道供给到控制室，从而减少了压力燃料流量的需求。 在关闭控制阀时，通过减压通道切断排放，两个加压通道都有助于填充控制室以快速关闭喷射阀。 改进的控制阀电枢是固定到金属引导垫片的小的磁响应盘，其具有夹在注射器壳体中的周边。 垫片的整体手指固定在盘上，引导其开启和关闭运动，避免摩擦在外壳上。 手指位于垫片和盘片的周边附近，当控制阀打开时，允许在盘和相关螺线管之间燃料流动的空间被盘吸引到该螺线管上。 从而降低了控制阀关闭的液压阻力。
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