公开(公告)号：US06568368B1

公开(公告)日：2003-05-27

申请号：US09787373

申请日：2001-07-27

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4700

CPC分类号： F02M47/027

摘要： The invention relates to a common rail injector for the injection of fuel in a common rail injection system of an internal combustion engine, which has an injector housing with a fuel inlet that communicates with a central high-pressure reservoir outside the injector housing and communicates with a pressure chamber inside the injector housing, from which highly pressurized fuel is injected depending on the position of a control valve, which assures that a nozzle needle, which can move axially back and forth in a longitudinal bore in the injector housing counter to the initial stress of a nozzle spring, lifts up from a seat when the pressure in the pressure chamber is greater than the pressure in a control chamber, which can be connected via an inlet throttle to the fuel inlet and can be connected via an outlet throttle to a relief chamber, and in order to produce a common rail injector which is simple in design and inexpensive to produce, the connection between the fuel inlet and the pressure chamber is disposed on the inside in relation to the control 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，其具有喷射器壳体，该喷射器壳体具有与喷射器壳体外部的中央高压容器连通并与喷射器壳体连通 喷射器壳体内部的压力室，根据控制阀的位置从其中喷射高度加压的燃料，其确保可以在喷射器壳体中的纵向孔中轴向前后移动的喷嘴针与初始 当压力室中的压力大于控制室中的压力时，喷嘴弹簧的应力从座椅升起，该控制室可以经由入口节流阀连接到燃料入口并且可以经由出口节流阀连接到 并且为了生产设计简单并且制造便宜的共轨喷射器，燃料入口与p的连接 固定室相对于控制室设置在内部。

公开(公告)号：US06561442B2

公开(公告)日：2003-05-13

申请号：US09900964

申请日：2001-07-10

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M6108

CPC分类号： F02M63/0003 ,  F02M63/0005 ,  F02M2200/21 ,  F02M2200/703

摘要： An injector for injecting fuel into the combustion chambers of a direct-injection internal combustion engine includes a control part which is received movably in the housing of the engine. The control part opens and closes the inlet to an injection nozzle at a seat face. In the control part, there is an inlet throttle, which acts upon the control chamber and is in communication with the inlet from the high-pressure collection chamber. In the housing of the injector, one region of the control part is coupled with a nozzle needle, via a further control chamber.

公开(公告)号：US06530556B1

公开(公告)日：2003-03-11

申请号：US09529655

申请日：2000-06-05

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F16K3102

CPC分类号： F02M59/366 ,  F02M59/466

摘要： The invention relates to a control unit (4) for controlling the pressure buildup in a pump unit (2), with a control valve (5) and a valve actuation unit (6) connected to it, wherein the control valve (5) is embodied as an I-valve that opens inward in the flow direction, which has a valve body (11) that is supported so that it can move axially in a housing (12) of the control unit (4) and rests against a valve seat (13) of the control valve (5) from the inside when the control valve (5) is closed. In order to produce a control unit (4) whose control valve (5) requires lower valve actuation forces and has short switching times, the invention proposes a control unit (4) which is characterized by means of an axially effective surface of the valve body (11) which surface is embodied in such a way that the forces, which act on the valve body (11) when the control valve (5) is closed and are due to the pressure present in the pump unit (2), cancel each other out.

摘要翻译： 本发明涉及一种控制单元（4），用于控制泵单元（2）中的压力积分，其中控制阀（5）和与其连接的阀致动单元（6），其中控制阀（5）是 体现为在流动方向向内打开的I型阀，其具有阀体（11），所述阀体被支撑成使得其能够在所述控制单元（4）的壳体（12）中轴向移动并靠在阀座 （5）关闭时从控制阀（5）的内部（13）移动。 为了产生控制单元（4），其控制阀（5）需要较低的阀致动力并具有短的切换时间，本发明提出了一种控制单元（4），其特征在于阀体的轴向有效表面 （11），其表面以这样一种方式实现：当控制阀（5）关闭并且由于泵单元（2）中存在的压力而作用在阀体（11）上的力抵消每个 另外出来

公开(公告)号：US06508231B2

公开(公告)日：2003-01-21

申请号：US09917152

申请日：2001-07-30

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M4100

CPC分类号： F02M63/0005 ,  F02M55/002 ,  F02M55/025

摘要： The invention relates to an injector for delivering fuel to a combustion chamber of direct-injection internal combustion engines, having a high-pressure connection chamber. A control part closes or opens a valve chamber from which a nozzle inlet line branches off to an injection nozzle, which protrudes into the combustion chamber of the engine. A control chamber is integrated with the high-pressure connection chamber, and with the control chamber, the control part can be actuated.

公开(公告)号：US06454239B1

公开(公告)日：2002-09-24

申请号：US09856792

申请日：2001-05-24

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F16K3102

CPC分类号： F02M63/0026 ,  F02M47/027 ,  F02M2200/703

摘要： A valve for controlling fluids, having a valve member (2), which is axially displaceable in a bore (7) of a valve body (6) and on one end has a valve closing member (8) that cooperates with a seat (9, 10), provided on the valve body (6), for opening and closing the valve (1); having a piezoelectric unit (3) for actuating the valve member (2); and having a tolerance compensating element (22) for compensating for elongation tolerances of the piezoelectric unit (3). The deflection of the piezoelectric unit (3) can be transmitted to the valve member (2) via a deflection element (20), and the piezoelectric unit (3) is disposed with its piezoelectric head (17) toward the valve member in the direction of motion of the valve member (2) essentially inside a length of the deflection element (20) and is connected to the deflection element via the tolerance compensating element (22). The latter is disposed parallel to the piezoelectric unit (3) and has virtually the same tolerance-dictated length-changing behavior as the piezoelectric unit (Drawing).

摘要翻译： 一种用于控制流体的阀，具有阀构件（2），其可在阀体（6）的孔（7）中并且在一端轴向移位，具有与座（9）配合的阀关闭构件（8） ，10），设置在所述阀体（6）上，用于打开和关闭所述阀（1）; 具有用于致动阀构件（2）的压电单元（3）; 并具有用于补偿压电单元（3）的伸长公差的公差补偿元件（22）。 压电单元（3）的挠曲能够经由偏转元件（20）传递到阀构件（2），并且压电单元（3）以其压电头（17）朝向阀构件的方向 所述阀构件（2）的运动基本上位于所述偏转元件（20）的长度内，并且经由所述公差补偿元件（22）连接到所述偏转元件。 后者与压电单元（3）平行设置并具有与压电单元（图）实质上相同的公差规定的长度变化特性。

公开(公告)号：US06425539B1

公开(公告)日：2002-07-30

申请号：US09529656

申请日：2000-06-05

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M6100

CPC分类号： F04B53/1022 ,  F02M45/06 ,  F02M59/366 ,  F04B49/225 ,  F04B2205/172

摘要： A control unit for controlling a pressure buildup by a pump unit in a fuel injection system. The control unit has a control valve and a valve actuation unit connected to the control valve. The control valve is embodied as an inlet valve that opens inward in the flow direction. The control unit has a valve body that is supported so that the valve body moves axially in a housing of the control unit and rests against a valve seat of the control valve from the inside when the control valve is closed. In order to give the through flow curve of the control valve as flat a course as possible with small strokes (Ssmall) of the control valve. The control unit includes a throttle device that throttles the flow through the control valve when the control valve is open by a small stroke (Ssmall).

摘要翻译： 控制单元，用于控制在燃料喷射系统中由泵单元产生的压力。 控制单元具有连接到控制阀的控制阀和阀致动单元。 控制阀被实施为在流动方向上向内打开的入口阀。 控制单元具有阀体，该阀体被支撑成使得阀体在控制单元的壳体中轴向移动，并且当控制阀关闭时从内部靠近控制阀的阀座。 为了使控制阀的通过流量曲线尽可能平坦，控制阀的小冲程（Ssmall）尽可能平坦。 控制单元包括一个节气门装置，当控制阀打开小行程（Ssmall）时，该节流装置节流通过控制阀的流量。

公开(公告)号：US06374802B1

公开(公告)日：2002-04-23

申请号：US09623355

申请日：2000-12-26

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M3704

CPC分类号： F02M63/0026 ,  F02M47/027 ,  F02M63/0205 ,  F02M2200/703 ,  F02M2547/003

摘要： A fuel injection system for an internal combustion engine with at least one cylinder has an injection unit for each cylinder and a through flow limiting valve for each injection unit, which shuts off the supply of fuel to an injection nozzle contained in the injection unit when the fuel flowing out of the through flow limiting valve reaches a maximal fuel quantity. In order to reduce the maximal fuel quantity, the through flow limiting valve is disposed in a nozzle supply line whereby the injection nozzle communicates with a high-pressure fuel supply.

摘要翻译： 用于具有至少一个气缸的内燃机的燃料喷射系统具有用于每个气缸的注射单元和用于每个注射单元的通过限流阀，其关闭在包含在注射单元中的注射喷嘴的燃料供应 从通过限流阀流出的燃料达到最大燃料量。 为了降低最大燃料量，通流限流阀设置在喷嘴供给管路中，由此喷嘴与高压燃料供给连通。

公开(公告)号：US06371085B1

公开(公告)日：2002-04-16

申请号：US09673352

申请日：2000-12-07

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M3704

CPC分类号： F02M51/0603

摘要： An injector for common rail Diesel injection systems of motor vehicles, having a multilayer piezoelectric actuator which has a multilayer actuator body. The actuator body is prestressed on a face end by a prestressing device and is seated inside a center longitudinal bore of an injector housing. The injector is characterized in that the prestressing device have at least one cup spring, which in a prestressing movement engages the face end of the actuator body opposite an injector valve (V), as well as a force transmission member seated in the injector housing and axially movable therein, the transmission member transmits the spring force of the at least one cup spring to the face end, toward the valve, of the actuator body.

摘要翻译： 一种用于共轨柴油注射系统的注射器，具有多层压电致动器，其具有多层致动器主体。 致动器主体通过预应力装置在面端部预应力，并且位于注射器壳体的中心纵向孔内。 喷射器的特征在于，预应力装置具有至少一个杯形弹簧，其在预应力运动中与致动器本体的与喷射器阀（V）相对的面端部以及安置在喷射器壳体中的力传递部件接合， 轴向可移动到其中，传动构件将至少一个杯形弹簧的弹簧力传递到致动器主体的朝向端部的朝向端部。

公开(公告)号：US06257506B1

公开(公告)日：2001-07-10

申请号：US09355775

申请日：1999-09-13

申请人： Karl Hofmann ,  Friedrich Boecking

发明人： Karl Hofmann ,  Friedrich Boecking

IPC分类号： F02M5900

CPC分类号： F02M61/1873 ,  F02M45/00 ,  F02M45/12 ,  F02M61/10 ,  F02M61/18 ,  F02M2200/28

摘要： A fuel injection nozzle for self-igniting internal combustion engines, having a nozzle body, in which a conical seat face from which injection ports originate is formed at the bottom of a blind bore. A valve needle which is guided displaceably with a guide portion in the inlet region of the blind bore counter to a closing force and counter to the fuel flow direction and on the end of a valve shaft adjoining the guide portion has a closing cone cooperating with the seat face. The valve shaft circumferentially defines an annular chamber for fuel delivery, and is characterized in that in a transitional region between the valve shaft and the closing cone, a throttle device of variable throttle cross section is disposed, by which the injection cross section can be varied as a function of the axial displacement of the valve needle.

摘要翻译： 一种用于自燃内燃机的燃料喷嘴，其具有喷嘴体，在盲孔的底部形成有从其喷出端口的锥形座面。 与盲孔的入口区域中的引导部分相对于闭合力并与燃料流动方向相反并且与邻近引导部分的阀轴的端部相反引导的阀针头具有与 座位面 阀轴周向地限定用于燃料输送的环形室，并且其特征在于，在阀轴和闭合锥体之间的过渡区域中设置有可变节流横截面的节流装置，通过该节流装置可以改变喷射截面 作为阀针的轴向位移的函数。

公开(公告)号：US06244245B1

公开(公告)日：2001-06-12

申请号：US09485826

申请日：2000-04-10

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02M3704

CPC分类号： F02M47/027 ,  F02M45/08 ,  F02M2200/505

摘要： A valve control unit for a fuel injection valve includes a housing body with two valve control chambers that continuously communicate with each other. An end member of a movable valve control piston can be moved inside the first valve control chamber and the first valve control chamber communicates with an inlet conduit for fuel. The second valve control chamber communicates with an outlet conduit that can be closed by a ball valve. The end member is comprised of an inner structural member and an outer structural member that can move in relation to each other. In the movement of the valve control piston, only the outer structural member is moved for a preinjection of fuel and the inner structural member is moved for the main injection. The quantity of preinjected fuel can be further minimized while an increased movement speed of the valve control piston is simultaneously possible during the main injection.

摘要翻译： 一种用于燃料喷射阀的阀门控制单元包括一个具有两个彼此连续连通的阀门控制室的壳体。 可移动阀控制活塞的端部构件可以在第一阀控制室内移动，并且第一阀控制室与用于燃料的入口导管连通。 第二阀控制室与可由球阀关闭的出口导管连通。 端部构件由可相对于彼此移动的内部结构构件和外部结构构件构成。 在阀门控制活塞的运动中，仅移动外部结构构件用于预注射燃料，并且内部结构构件移动用于主喷射。 可以进一步最小化预注射燃料的量，同时在主喷射期间同时可以增加阀控制活塞的移动速度。