Pressure-controlled injector with serially connected control valves

    公开(公告)号:US06553968B2

    公开(公告)日:2003-04-29

    申请号:US10011072

    申请日:2001-11-08

    IPC分类号: F02M3704

    摘要: An injector for injecting fuel in a combustion chamber of an internal combustion engine has a housing provided with a housing opening, a control valve body movable in the opening of the housing, a ring chamber which encloses the control valve body, an inlet connectable with a high pressure collecting chamber and opening into the ring chamber, a nozzle inlet arranged so that during the movement of the control valve body the nozzle inlet is connected with the inlet or separated from the latter, and 2/2-way control valves arranged inside the housing in series so that one of the 2/2-way control valves is force-equalized in an open condition.

    Common rail
    112.
    发明授权
    Common rail 失效
    共轨

    公开(公告)号:US06520155B1

    公开(公告)日:2003-02-18

    申请号:US09857577

    申请日:2001-09-05

    IPC分类号: F02M5502

    CPC分类号: F02M55/025

    摘要: The invention relates to a common rail for a common rail fuel injection system of an internal combustion engine, having a tubular base body which is equipped with a plurality of connection openings. To enable the common rail to withstand higher pressures than conventional common rails, according to our embodiment at least two connection openings are disposed diametrically opposite one another in the tubular base body. In a further version of the invention, diametrically opposite at least one of the connection openings, there is a machining opening, which is closed by a closure plug.

    摘要翻译: 本发明涉及一种用于内燃机共轨燃料喷射系统的共轨,其具有配备有多个连接开口的管状基体。 为了使共轨承受比常规公共轨道更高的压力,根据我们的实施例,在管状基体中至少两个连接开口彼此沿径向相对设置。 在本发明的另一种形式中,与至少一个连接开口直径相对地,存在一个由封闭塞封闭的加工开口。

    Pressure controlled injector for high injection with slider throttle

    公开(公告)号:US06484698B2

    公开(公告)日:2002-11-26

    申请号:US10007214

    申请日:2001-11-08

    IPC分类号: F02M3704

    CPC分类号: F02M63/0007 F02M45/12

    摘要: An injector for injecting fuel under high pressure into a combustion chamber of an internal combustion engine has an injector housing, a supply provided on the injector housing, a valve body, an actuator which imparts a vertical movement to the valve body in the injector housing, a closing element, a sealing seat for the closing element provided in the injector housing for releasing and for closing a supply from a high pressure collecting chamber, a nozzle chamber, a nozzle supply, a permanently acting throttle element branching from the nozzle supply to the nozzle chamber, and another throttle element regulatable by the valve body and branching from the nozzle supply to the nozzle chamber.

    Fuel injection valve and method for operating a fuel injection valve
    114.
    发明授权
    Fuel injection valve and method for operating a fuel injection valve 失效
    燃油喷射阀和操作燃油喷射阀的方法

    公开(公告)号:US06478013B1

    公开(公告)日:2002-11-12

    申请号:US09889528

    申请日:2001-11-13

    IPC分类号: F02M3704

    摘要: A fuel injector (1), in particular a fuel injector for fuel injection systems of internal combustion engines, has a piezoelectric or magnetostrictive actuator (3) and a valve closing body (12) which can be actuated by the actuator (3) via an actuating path (6, 24, 10, 9), the valve closing body (12) working together with a valve seat surface (13) to form a sealing seat. A gap (24) is formed in the actuating path (6, 24, 10, 9) in the non-energized rest state of the actuator (3).

    摘要翻译: 燃料喷射器(1),特别是用于内燃机的燃料喷射系统的燃料喷射器具有压电或磁致伸缩致动器(3)和阀关闭体(12),其可以由致动器(3)经由 致动路径(6,24,10,9),阀关闭体(12)与阀座表面(13)一起工作以形成密封座。 在致动器(3)的非通电静止状态下,在致动路径(6,24,10,9)中形成间隙(24)。

    Method for machining a high pressure fuel accumulator, high pressure fuel accumulator and connector branches for using said method
    115.
    发明授权
    Method for machining a high pressure fuel accumulator, high pressure fuel accumulator and connector branches for using said method 失效
    用于加工高压燃料蓄能器,高压燃料蓄能器和使用所述方法的连接器分支的方法

    公开(公告)号:US06470856B1

    公开(公告)日:2002-10-29

    申请号:US09857629

    申请日:2001-09-05

    IPC分类号: F02M3704

    CPC分类号: F02M55/025 Y10T29/49231

    摘要: The invention relates to a method for machining a common rail for a common rail fuel injection system of an internal combustion engine, having a base body, which is equipped with a plurality of connection openings. The invention also relates to a common rail and to a connection stub for application of the method. In the method, the base body is deformed in the region of the connection openings. In the region of each of the connection openings, one through bore is provided, which has two segments of different-sized internal diameters. The connection stub of the invention is characterized in that the outside diameter of the connection stub, on its end toward the common rail, is substantially equivalent to the internal diameter of the segment of the through bore in the common rail having the larger diameter.

    摘要翻译: 本发明涉及一种用于内燃机共轨燃油喷射系统共轨加工方法,该内燃机的基体具有多个连接孔。 本发明还涉及一种用于该方法的共轨和连接桩。 在该方法中,基体在连接孔的区域中变形。 在每个连接开口的区域中,设有一个通孔,其具有两个不同尺寸内径的段。 本发明的连接短管的特征在于,连接短柱的端部朝向共轨的外径基本上等于具有较大直径的共轨中的通孔的段的内径。

    Fuel injection valve
    116.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号:US06460779B1

    公开(公告)日:2002-10-08

    申请号:US09787968

    申请日:2001-05-15

    IPC分类号: B05B108

    摘要: A fuel injector, especially an injector for fuel injection systems in internal combustion engines, has a piezoelectric or magnetostrictive actuator. The actuator, via a valve needle, activates a valve-closure member, which cooperates with a valve seat surface to form a sealing seat. The actuator can be actuated in a first direction of motion. In contrast, the valve-closure member can be moved by the valve needle in a second direction of motion (40) that is essentially perpendicular to the first direction of motion.

    摘要翻译: 燃料喷射器,特别是用于内燃机中的燃料喷射系统的喷射器,具有压电或磁致伸缩致动器。 致动器通过阀针启动阀关闭构件,其与阀座表面协作以形成密封座。 致动器可以在第一运动方向上致动。 相反,阀关闭构件可以通过阀针沿着基本上垂直于第一运动方向的第二运动方向(40)移动。

    Piezoelectric actuator
    117.
    发明授权
    Piezoelectric actuator 失效
    压电执行器

    公开(公告)号:US06448692B1

    公开(公告)日:2002-09-10

    申请号:US09520017

    申请日:2000-03-06

    IPC分类号: H01L4104

    CPC分类号: H01L41/083 H01L41/053

    摘要: A piezoelectric actuator for actuating control valves or injection valves in motor vehicles. The actuator includes an actuator body in the form of a multilayer laminate of stacked layers of piezoelectric material and intervening metallic or electrically conductive layers acting as electrodes. One bottom plate toward the valve and an opposed top plate are mounted on each of the end faces of the actuator body. The piezoelectric actuator is characterized in that the actuator body on each of its end faces has one piezoelectrically inactive cover layer and that the connection faces of the bottom plate and the top plate which adjoin the end faces of the actuator body have fixation elements that grip the cover layers, for at least nonpositive fixation of the cover layers of the actuator body.

    摘要翻译: 用于在机动车辆中起动控制阀或喷射阀的压电致动器。 致动器包括致动器本体,其为压电材料层叠层和作为电极的中间金属或导电层的多层叠层形式。 朝向阀门的一个底板和相对的顶板安装在致动器主体的每个端面上。 压电致动器的特征在于,其每个端面上的致动器主体具有一个压电非活性覆盖层,并且底板和顶板的与致动器主体的端面相邻的连接面具有固定元件, 覆盖层,用于致动器主体的覆盖层的至少非正极固定。

    Injection valve for a fuel system of a vehicle
    118.
    发明授权
    Injection valve for a fuel system of a vehicle 失效
    用于车辆燃料系统的喷射阀

    公开(公告)号:US06296197B1

    公开(公告)日:2001-10-02

    申请号:US09308715

    申请日:1999-06-30

    IPC分类号: F02M4702

    摘要: An injection valve for a fuel injection system, for multistage control of the effective cross section of an injection opening. A spring/stop system with a first compression spring for a control valve for a control chamber, whose pressure determined the position of the valve shaft of an injection valve member. When a valve opens, the spring/stop system allows its valve tappet a first axial stroke, which is limited by a primary stop on an axially movable adapter. The axial mobility of the adapter allows the valve tappet, counter to the compressive force of a first compression spring, an additional, second axial stroke, which is limited by an end stop structurally connected to the housing. The valve tappet is urged in the closing direction of the control valve by a second compression spring braced against the housing of the injection valve, and in the closed state of the control valve the spring force of the second compression spring is less than that of the first compression spring. Applicable to a control valve of a common rail injector.

    摘要翻译: 一种用于燃料喷射系统的喷射阀,用于对喷射开口的有效截面进行多级控制。 一种具有用于控制室的控制阀的第一压缩弹簧的弹簧/停止系统,其压力确定了喷射阀构件的阀轴的位置。 当阀门打开时,弹簧/止动系统允许其阀挺杆第一轴向行程,其受到可轴向移动的适配器上的主止挡限制。 适配器的轴向移动性允许阀挺杆抵抗第一压缩弹簧的压缩力,附加的第二轴向行程由结构上连接到壳体的止挡限制。 阀挺杆通过支撑在喷射阀的壳体上的第二压缩弹簧沿控制阀的关闭方向被推动,在控制阀的关闭状态下,第二压缩弹簧的弹簧力小于 第一压缩弹簧。 适用于共轨喷油器的控制阀。

    Valve including a step-up piston for controlling fluids
    119.
    发明授权
    Valve including a step-up piston for controlling fluids 失效
    阀包括用于控制流体的升压活塞

    公开(公告)号:US06290204B1

    公开(公告)日:2001-09-18

    申请号:US09319118

    申请日:1999-07-08

    IPC分类号: F02M5100

    摘要: A valve for controlling liquids for its actuation is provided with a liquid-filled coupling chamber, which is disposed between a step-up piston, actuatable by a piezoelectric actuator, and a piston that actuates a valve member. To compensate for leakage in the coupling chamber that is at high pressure, a filling valve is provided. The filling valve is disposed between the step-up piston and the piezoelectric actuator. Upon each return stroke of the piezoelectric actuator, the step-up piston follows the piezoelectric actuator with a time lag, so that the filling valve opens briefly and allows filling of the coupling chamber. The valves intended for use in fuel injection systems for internal combustion engines of motor vehicles.

    摘要翻译: 用于控制其致动液体的阀设置有液体填充的联接室,其设置在可由压电致动器致动的升压活塞和致动阀构件的活塞之间。 为了补偿处于高压的联接室中的泄漏,提供了一个填充阀。 填充阀设置在升压活塞和压电致动器之间。 在压电致动器的每次返回行程时,升压活塞以时间滞后于压电致动器,使得充填阀短暂打开并允许填充联接室。 用于汽车内燃机燃油喷射系统的阀门。

    Fuel injection valve for internal combustion engines
    120.
    发明授权
    Fuel injection valve for internal combustion engines 失效
    内燃机燃油喷射阀

    公开(公告)号:US06247452B1

    公开(公告)日:2001-06-19

    申请号:US09319533

    申请日:1999-07-21

    IPC分类号: F02M4100

    CPC分类号: F02M47/027

    摘要: A fuel injection valve for internal combustion engines, having an axially displaceable valve member which is disposed in a valve body. On an end toward an engine combustion chamber the valve member has a conical valve sealing face with which the valve member cooperates with a conical valve seat face on the valve body for controlling an injection cross section. Via an internal guide the valve member is guided slidingly displaceably on a tang of a stationary insert body.

    摘要翻译: 一种用于内燃机的燃料喷射阀,其具有设置在阀体中的可轴向移动的阀构件。 在朝向发动机燃烧室的一端,阀构件具有锥形阀密封面,阀构件与阀体与阀体上的锥形阀座面配合以控制喷射截面。 通过内部引导件,阀构件被滑动地可移动地引导到固定插入物体的柄脚上。