公开(公告)号：US06553967B2

公开(公告)日：2003-04-29

申请号：US09985485

申请日：2001-11-05

申请人： Bernd Mahr

发明人： Bernd Mahr

IPC分类号： F02M4116

CPC分类号： F02M61/205 ,  F02M61/08 ,  F02M63/0007

摘要： An injection nozzle of a pressure-controlled fuel injection system has a control chamber for exerting pressure on a nozzle needle. The control chamber is connectable to a pressure reservoir via a pressure line that includes a 2/2-way valve. On the end of the nozzle needle that can be acted upon by pressure and is remote from the injection opening, a bore is embodied, by way of which the control chamber of the injection nozzle can be made to communicate with a leakage line as a function of the stroke of nozzle needle.

公开(公告)号：US06626371B1

公开(公告)日：2003-09-30

申请号：US09806690

申请日：2001-07-27

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M47/027 ,  F02M2200/21

摘要： The invention relates to a common rail fuel injector having an injector housing with a fuel inlet in communication with a central high-pressure fuel reservoir outside the injector housing and with a pressure chamber inside the injector housing. A control valve that assures that a nozzle needle lifts from a seat when the pressure in the pressure chamber is greater than the pressure in a control chamber that communicates with the fuel inlet via an inlet throttle and with a relief chamber via a fuel outlet. The control chamber is integrated with the end, remote from the combustion chamber, of the nozzle needle.

摘要翻译： 本发明涉及一种共轨燃料喷射器，其具有喷射器壳体，其具有与喷射器壳体外部的中央高压燃料储存器连通的燃料入口以及喷射器壳体内的压力室。 一种控制阀，其确保当压力室中的压力大于经由入口节流阀与燃料入口连通的控制室中的压力时，喷嘴针从座上升起，并且经由燃料出口与释放室相连。 控制室与喷嘴针的远离燃烧室的端部一体化。

公开(公告)号：US06557779B2

公开(公告)日：2003-05-06

申请号：US09796823

申请日：2001-03-02

申请人： Julius P. Perr ,  J. Victor Perr ,  Lester L. Peters ,  Donald J. Benson ,  John T. Carroll, III

发明人： Julius P. Perr ,  J. Victor Perr ,  Lester L. Peters ,  Donald J. Benson ,  John T. Carroll, III

IPC分类号： F02M4116

CPC分类号： F02M47/027 ,  F02M45/04 ,  F02M45/086 ,  F02M45/12 ,  F02M63/0017 ,  F02M63/0064 ,  F02M2200/21 ,  F02M2547/003

摘要： An improved closed nozzle injector assembly for injecting high pressure fuel into the combustion chamber of an engine is provided which includes a first needle valve element associated with a first set of injector orifices, a first needle valve control device for controlling the opening and closing of the first needle valve, a second needle valve associated with a second set of injector orifices and a second needle valve control device for controlling the opening and closing of the second needle valve. Each needle valve control device includes a control volume positioned at one end of the respective needle valve, a control volume charge circuit for supplying high pressure fuel to the respective control volume and the respective injection control valve for controlling the flow of high pressure fuel from the respective control volume to a low pressure drain thereby controlling the movement of the respective needle valve. Using a dedicated control volume and injection control valve for each needle valve element permits effective control over the duration of pilot and post fuel injection events while also providing variable rate shaping capability for optimized emissions and fuel economy. The present dual needle valve element injector includes various components such as biasing springs which are positioned and interconnected to other components in a manner which creates a simple, compact fuel injector package providing independent control of two sets of spray orifices in one injector.

公开(公告)号：US06726121B1

公开(公告)日：2004-04-27

申请号：US09806716

申请日：2001-08-20

申请人： Dieter Kienzler ,  Patrick Mattes ,  Wolfgang Stoecklein ,  Friedrich Boecking

发明人： Dieter Kienzler ,  Patrick Mattes ,  Wolfgang Stoecklein ,  Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M47/027 ,  F02M2200/21 ,  F02M2547/003

摘要： The invention relates to a common rail injector for injecting fuel in a common rail injection system of an internal combustion engine, which system has an injector housing (1) with a fuel inlet (24) that is in communication with a central high-pressure fuel reservoir outside the injector housing (1) and with a pressure chamber (27) inside the injector housing (1), from which fuel subjected to high pressure is injected as a function of the position of a control valve (18) that assures that a nozzle needle (8), which is movable back and forth and received in a longitudinal bore (6) of the injector axially counter to the prestressing force of a nozzle spring (21) that is received in a nozzle spring chamber (20), lifts from a seat when the pressure in the pressure chamber (27) is greater than the pressure in a control chamber (30) that communicates with the fuel inlet (24) via an inlet throttle (19). To achieve markedly higher nozzle needle speeds, the control chamber (15) is formed by a cylindrical chamber, in which a control peg (12), embodied on the end of the nozzle needle (8) remote from the combustion chamber, is displaceable causing a sealing effect, and that the nozzle spring chamber (20) is disposed outside the control chamber (15), in the region of the end of the nozzle needle (8) remote from the combustion chamber.

摘要翻译： 本发明涉及一种用于在内燃机的共轨喷射系统中喷射燃料的共轨喷射器，该系统具有喷射器壳体（1），其具有与中心高压燃料连通的燃料入口（24） 喷射器壳体（1）外部的压力室和喷射器壳体（1）内部的压力室（27），根据控制阀（18）的位置来喷射经受高压的燃料，其确保 喷嘴针（8）可前后移动并且被容纳在喷射器弹簧室（20）中的喷嘴弹簧（21）的预应力轴向上的轴向孔（6）内， 当压力室（27）中的压力大于通过入口节流阀（19）与燃料入口（24）连通的控制室（30）中的压力时，从座位开始，为了获得显着更高的喷嘴针速度， 控制室（15）由cy形成 其中在喷嘴针（8）的远离燃烧室的端部上实施的控制栓（12）可移动，引起密封效果，并且喷嘴弹簧室（20）设置在控制之外 在喷嘴针（8）的远离燃烧室的端部的区域中的腔室（15）。

公开(公告)号：US06412706B1

公开(公告)日：2002-07-02

申请号：US09262969

申请日：1999-03-04

申请人： Noureddine Guerrassi ,  Christophe Tapin ,  Bernard Babiarz

发明人： Noureddine Guerrassi ,  Christophe Tapin ,  Bernard Babiarz

IPC分类号： F02M4116

CPC分类号： F02M47/027

摘要： A fuel injector comprising a valve needle, engagable with the seating to control fuel flow through a fuel outlet, the valve needle having a thrust surface oriented such that the application of fuel under pressure thereto applies a force to the valve needle urging the valve needle away from the seating. The fuel injector also comprises a valve member for controlling fuel pressure within a control chamber and a piston member slidable within a bore and defining, with the bore, the control chamber. The piston member is exposed to fuel pressure within the control chamber and is arranged to transmit a force applied by the fuel pressure to the valve needle. The piston member has an effective surface area exposed to the fuel pressure which is greater than that of the thrust surface so as to urge the valve needle towards the seating.

摘要翻译： 一种燃料喷射器，包括阀针，可与所述座接合，以控制通过燃料出口的燃料流动，所述阀针具有取向的推力面，使得在压力下的燃料的施加对所述阀针施加力以促使所述阀针远离 从座位。 燃料喷射器还包括用于控制控制室内的燃料压力的阀构件和可在孔内滑动并且与孔一起限定控制室的活塞构件。 活塞构件暴露于控制室内的燃料压力，并且被布置成将由燃料压力施加的力传递到阀针。 活塞构件具有暴露于燃料压力的有效表面积，该有效表面积大于推力表面的燃料压力，从而将阀针推向座椅。

公开(公告)号：US06616064B2

公开(公告)日：2003-09-09

申请号：US10022906

申请日：2001-12-20

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M47/025 ,  F02M47/02 ,  F02M47/027

摘要： The invention relates to an injector with a valve chamber which is contained in an injector housing and can be loaded by way of an inlet from the high-pressure accumulation chamber. This valve chamber loads a nozzle inlet to an injection nozzle by means of a control element that can be moved in the injector housing upon the pressure relief of a control chamber. On the control element, which is embodied of one part or multiple parts, a control surface is disposed in the pressure relief region of the nozzle inlet.

公开(公告)号：US06616063B2

公开(公告)日：2003-09-09

申请号：US09900966

申请日：2001-07-10

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M63/0005 ,  Y10T137/86614

摘要： Disclosed in an injector for injecting fuel into the combustion chambers of an internal combustion engine, in which control part body is received movably in an injector housing and its opening and closing motion is effected via pressure relief of a control chamber. The pressure relief of the control chamber is controlled via an externally actuatable actuator. On the control part body, a sealing seat diameter that seals off the valve chamber is provided, which closes and opens the inlet from a common rail. An annular throttle element of variable cross section is located downstream of the sealing seat diameter of the control part body. An annular throttle element of variable cross section, or a throttle slide with a throttle, is located downstream of the sealing seat diameter of the control part body.

公开(公告)号：US06257499B1

公开(公告)日：2001-07-10

申请号：US09617301

申请日：2000-07-17

申请人： Oded E. Sturman

发明人： Oded E. Sturman

IPC分类号： F02M4116

CPC分类号： F02M47/027 ,  F02M47/043 ,  F02M47/046 ,  F02M57/025 ,  F02M59/105 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/004 ,  F02M63/0049

摘要： A fuel injector which has a double solenoid three-way or four-way spool valve that controls the flow of a working fluid that is used to move an intensifier piston of the injector.

摘要翻译： 一种燃料喷射器，其具有双螺线管三通或四通滑阀，其控制用于移动喷射器的增压活塞的工作流体的流动。

公开(公告)号：US06688537B2

公开(公告)日：2004-02-10

申请号：US10033411

申请日：2001-11-13

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M63/0061 ,  F02M47/027 ,  F02M55/002 ,  F02M59/46 ,  F02M63/0005 ,  F02M63/0026 ,  F02M63/0036 ,  F02M2200/701 ,  F02M2200/704

摘要： An injection for injecting fuel under high pressure in a combustion chamber of an internal combustion engine has a control chamber, a valve body which is pressure loaded from the control chamber, a further control chamber, a nozzle needle which is pressure loaded from the further control chamber, a nozzle inlet, a nozzle chamber provided for the nozzle needle and loaded from the nozzle inlet, a valve body formed as a 3/2-way valve for pressure controlling the injector, a 2/2-way valve for stroke controlling of the injector at a leakage oil side, and a common controller, the valves being controllable either by the common controller or separately from one another.

摘要翻译： 用于在内燃机的燃烧室中高压喷射燃料的喷射器具有控制室，从该控制室加压的阀体，另一个控制室，从另一个控制器加压的喷嘴针 腔室，喷嘴入口，为喷嘴针提供并从喷嘴入口装载的喷嘴室，形成为用于压力控制喷射器的3/2通阀的阀体，用于行程控制的二通阀 泄漏油侧的喷射器和公共控制器，所述阀可由公共控制器或彼此分开控制。

公开(公告)号：US06616062B2

公开(公告)日：2003-09-09

申请号：US09893434

申请日：2001-06-29

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4116

CPC分类号： F02M63/0005

摘要： The invention relates to an injector for injecting fuel into the combustion chambers of an internal combustion engine. The inlet originating at a high-pressure collection chamber (common rail) discharges into the housing of the injector, in which a control part is received, movable vertically. The motion of the control part is effected via the pressure relief of a control chamber, provided in the housing of the injector, by means of an actuator-actuatable closing element. Upon triggering of the control part via the actuator-actuatable closing element, a seat valve embodied as a spherical control body closes or opens inlets and outlets.