Method for Controlling the Composition of a Fuel/Air Mixture for an Internal Combustion Engine
    11.
    发明申请
    Method for Controlling the Composition of a Fuel/Air Mixture for an Internal Combustion Engine 有权
    用于控制用于内燃机的燃料/空气混合物的组成的方法

    公开(公告)号:US20080041338A1

    公开(公告)日:2008-02-21

    申请号:US11836996

    申请日:2007-08-10

    IPC分类号: F02D33/00

    摘要: In a method for controlling a composition of a fuel/air mixture supplied to an internal combustion engine, which engine has a speed control circuit maintaining an actual rotary speed of the crankshaft within preset limits and a controllable metering device for at least one component of the fuel/air mixture, a disruptive variable is introduced into the valve control circuit at a predeterminable point in time, the activity of an engine speed control circuit is monitored and evaluated immediately after introducing the disruptive variable, and, depending on the evaluation result, at least one parameter having an effect on the operation of the internal combustion engine is adjusted.

    摘要翻译: 在一种用于控制供应到内燃机的燃料/空气混合物的组成的方法中,该发动机具有将曲轴的实际转速维持在预设限度内的速度控制电路和用于至少一个部件的可控计量装置 燃料/空气混合物,在预先确定的时间点将扰动变量引入阀控制电路中,在引入破坏性变量之后立即监控并评估发动机速度控制电路的活动,并且根据评估结果,在 调整对内燃机的运转有影响的至少一个参数。

    METHOD FOR CONTROLLING AN ELECTROMAGNETIC VALVE IN A FUEL SYSTEM
    12.
    发明申请
    METHOD FOR CONTROLLING AN ELECTROMAGNETIC VALVE IN A FUEL SYSTEM 有权
    在燃料系统中控制电磁阀的方法

    公开(公告)号:US20060243251A1

    公开(公告)日:2006-11-02

    申请号:US11406393

    申请日:2006-04-19

    IPC分类号: F02M7/00

    摘要: A method is for controlling the metering of fuel in a fuel system (30) of an internal combustion engine (1) which is to be started manually. This control is with a currentless open electromagnetic valve (21). The electromagnetic valve (21) is only switched into the closed state when a supply voltage (Uv) is applied and current flows. Within a blocking time (47), which is pregiven by an engine control (13), a supply voltage (Uv) is switched onto the excitation coil of the electromagnetic valve (21) only and the valve (21) is supplied with current only when an underpressure is present in the intake channel (11) of the fuel system (30); whereas, in the remaining time span (50) of the blocking time (47), wherein no underpressure is present, the control unit (20) switches off the supply voltage (Uv) and the valve (21) is in the currentless open state.

    摘要翻译: 一种用于控制将要手动启动的内燃机(1)的燃料系统(30)中的燃料计量的方法。 这种控制是用无电流开放的电磁阀(21)。 当施加电源电压(U)时,电磁阀(21)仅切换到关闭状态,并且电流流动。 在通过发动机控制(13)预先接受的阻塞时间(47)内,仅将电源(21)的供电电压切换到电磁阀(21)的励磁线圈上,并且阀 (21)在燃料系统(30)的进气通道(11)中存在负压时供给电流; 而在其中不存在负压的阻塞时间(47)的剩余时间跨度(50)中,控制单元(20)关闭供应电压(U SUB)和阀( 21)处于无休止状态。

    Electromagnetic valve
    13.
    发明申请
    Electromagnetic valve 有权
    电磁阀

    公开(公告)号:US20050168310A1

    公开(公告)日:2005-08-04

    申请号:US10661526

    申请日:2003-09-15

    IPC分类号: F16K31/06 H01F7/00

    CPC分类号: F16K31/0655

    摘要: An electromagnetic valve (1, 21) includes a coil (2) which is fixedly connected to an iron core (3). An armature plate (5) is movably journalled in the direction of the coil longitudinal axis (22) relative to the iron core (3). At least two flow channels (8, 9; 26, 27, 28, 29) open at the armature plate (5) and are fluidly separated from each other when a current flows in the coil (2). A small structural size with a simple manufacture of the electromagnetic valve (1, 21) is achieved in that a flow channel (8; 26, 27, 28) opens in the peripheral region (32) of the armature plate (5) at the end (33) of the armature plate (5) facing toward the coil (2).

    摘要翻译: 电磁阀(1,21)包括固定地连接到铁芯(3)的线圈(2)。 电枢板(5)相对于铁芯(3)在线圈纵向轴线(22)的方向上可移动地支承。 至少两个流动通道(8,9; 26,27,28,29)在电枢板(5)处打开并且当电流在线圈(2)中流动时彼此流体分离。 实现了简单制造电磁阀(1,21)的小结构尺寸,其中流路(8; 26,27,28)在电枢板(5)的周边区域(32)中在 电枢板(5)的朝向线圈(2)的端部(33)。

    Carburetor arrangement for an internal combustion engine
    14.
    发明申请
    Carburetor arrangement for an internal combustion engine 有权
    用于内燃机的化油器装置

    公开(公告)号:US20050022790A1

    公开(公告)日:2005-02-03

    申请号:US10896213

    申请日:2004-07-21

    摘要: A carburetor arrangement is provided for an internal combustion engine that is to be started with a pull cord. A fuel channel that is connected with a fuel-filled storage space opens into and supplies fuel to an intake channel portion as a function of the underpressure in the intake channel portion. The underpressure in the intake channel portion is increased during the start-up process via a start-up mechanism. To keep the engine ready to run with the start-up mechanism engaged, a control valve is disposed between the storage space and where the fuel channel opens into the intake channel portion. The control valve is opened or closed by a control unit as a function of the speed of the internal combustion engine.

    摘要翻译: 为了用拉绳起动的内燃机提供化油器装置。 与燃料填充的储存空间连接的燃料通道作为进气通道部分中的负压的函数打开并供应到进气通道部分。 进气通道部分的负压在起动过程中通过启动机构增加。 为了使发动机准备好运行,起动机构接合,控制阀设置在存储空间之间并且燃料通道打开到进气通道部分中。 作为内燃机的速度的函数,由控制单元打开或关闭控制阀。

    Ignition circuit having a high-energy spark for an internal combustion engine
    15.
    发明申请
    Ignition circuit having a high-energy spark for an internal combustion engine 有权
    具有用于内燃机的高能量火花的点火电路

    公开(公告)号:US20070034190A1

    公开(公告)日:2007-02-15

    申请号:US11494501

    申请日:2006-07-28

    IPC分类号: F02P5/00 F02P3/06

    摘要: An ignition circuit is for an internal combustion engine in a handheld portable work apparatus. A combustion chamber (4) is configured in the cylinder (3) of the engine (1) which is delimited by a piston (5) driving a crankshaft (7). An electromagnetic induction loop (13) and a pole wheel (10) are provided. The pole wheel (10) revolves with the crankshaft (7) and is assigned to the induction loop (13). The pole wheel (10) periodically changes the magnetic flux in the induction loop (13). An ignition capacitor (16) is charged by a charge coil (14) of the induction loop (13) and is discharged via a discharge circuit (15) via an ignition coil (17). The ignition coil (17) is connected to a spark plug (19) projecting into the combustion chamber (4). For achieving a powerful ignition spark, the discharge of the ignition capacitor (16) is prevented by an rpm evaluation circuit (23) when the rpm curve (30) exhibits an rpm change (Δn) which exceeds a pregiven threshold value.

    摘要翻译: 点火电路是用于手持便携式工作装置中的内燃机。 燃烧室(4)构造在发动机(1)的气缸(3)中,其由驱动曲轴(7)的活塞(5)限定。 提供电磁感应回路(13)和极轮(10)。 极轮(10)与曲轴(7)一起旋转并分配给感应回路(13)。 极轮(10)周期性地改变感应回路(13)中的磁通量。 点火电容器(16)由感应回路(13)的充电线圈(14)充电,经由点火线圈(17)经由放电电路(15)放电。 点火线圈(17)连接到突出到燃烧室(4)中的火花塞(19)。 为了实现强烈的点火火花,当转速曲线(30)表现出超过预定阈值的转速变化(Deltan)时,通过转速评估电路(23)防止点火电容器(16)的放电。

    Device for decanting a liquid
    16.
    发明授权
    Device for decanting a liquid 有权
    倾析液体的装置

    公开(公告)号:US07013936B2

    公开(公告)日:2006-03-21

    申请号:US10644039

    申请日:2003-08-20

    IPC分类号: B65B1/04

    CPC分类号: B67D7/005

    摘要: An arrangement for decanting liquids includes a tubular-shaped support (1) having a flow channel (2). The flow channel (2) is blocked by a valve plate (3) which is coupled via axial connecting elements (4, 4′) to the relative movement of an inner sleeve (5) and an outer sleeve (6) of the support (1). The outer sleeve (6) lies in overlapment and the axial connecting elements (4, 4′) extend into the interior of the support. The valve plate (3) can be lifted from its valve seat against a spring force engaging at the inner sleeve (5) and at the outer sleeve (6). A radial flange collar (13) is formed on the outer sleeve (6). To ensure an accurate metering at the highest possible volume flow of the discharged liquid at low manufacturing costs, the valve plate (3) is mounted at a free end (9) of the support (1) and the axial connecting elements are configured as tension rods (4, 4′) and are arranged next to an edge of the valve plate (3).

    摘要翻译: 用于倾析液体的装置包括具有流动通道(2)的管状支撑件(1)。 流动通道(2)被阀板(3)阻塞,阀板(3)通过轴向连接元件(4,4')联接到支撑件的内套筒(5)和外套筒(6)的相对运动 1)。 外套筒(6)位于重叠中,并且轴向连接元件(4,4')延伸到支撑件的内部。 阀板(3)可以抵抗与内套筒(5)和外套筒(6)接合的弹簧力从阀座提升。 径向凸缘轴环(13)形成在外套筒(6)上。 为了确保以低制造成本在排出液体的最大体积流量下的精确计量,阀板(3)安装在支撑件(1)的自由端(9)处,并且轴向连接元件被构造为张力 杆(4,4')并且布置在阀板(3)的边缘旁边。

    Portable handheld work apparatus
    17.
    发明申请
    Portable handheld work apparatus 有权
    便携式手持式工作装置

    公开(公告)号:US20050183270A1

    公开(公告)日:2005-08-25

    申请号:US11065130

    申请日:2005-02-24

    IPC分类号: B27B17/00

    摘要: A portable handheld work apparatus such as a motor-driven chain saw (1) includes a housing (2) wherein an internal combustion engine (10) and a carburetor (11) are mounted. A throttle lever (6) is provided which is pivotally journalled on a handle (3). The handle (3) is connected to the housing (2) via at least one antivibration element (33). A vibration gap (9) is configured between the handle (3) and the housing (2). A transmitting unit (13) is provided for transmitting the pivot movement of the throttle lever (6) to the carburetor (11). The transmitting unit includes a rigid transmitting element (17, 37) which bridges the vibration gap (9). A simple configuration and a substantial decoupling of the relative movement between the housing (2) and the handle (3) from the actuating movement of the carburetor is achieved in that the transmitting element (17, 37) is rotatably journalled and the pivot movement of the throttle lever (6) is transmitted as a rotation about a rotational axis (22) lying transverse to the vibration gap (9).

    摘要翻译: 诸如电动链锯(1)的便携式手持式工作装置包括其中安装有内燃机(10)和化油器(11)的壳体(2)。 提供了一个节流杆(6),其枢转地安装在手柄(3)上。 手柄(3)经由至少一个防振元件(33)连接到壳体(2)。 振动间隙(9)构造在手柄(3)和壳体(2)之间。 传动单元(13)用于将节流杆(6)的枢转运动传递到化油器(11)。 发射单元包括桥接振动间隙(9)的刚性传递元件(17,37)。 实现了简单的结构和壳体(2)与把手(3)之间的相对移动与化油器的致动运动的实质上的分离,其特征在于,传递元件(17,37)可旋转地轴颈并且枢转运动 节流杆(6)作为围绕横向于振动间隙(9)的旋转轴线(22)的旋转传递。

    Carburetor arrangement
    18.
    发明授权

    公开(公告)号:US06659432B2

    公开(公告)日:2003-12-09

    申请号:US10066742

    申请日:2002-02-06

    申请人: Hans Nickel

    发明人: Hans Nickel

    IPC分类号: F02M102

    CPC分类号: F02M1/02 F02B63/02 Y10S55/28

    摘要: The invention relates to a carburetor arrangement for an internal combustion engine (1), especially for a drive motor of a work apparatus such as a motor-driven chain saw, a brushcutter, a cutoff machine or the like. The carburetor arrangement includes a carburetor (2) having an intake channel (3) and an air filter (4) mounted upstream of the intake channel (3). The air filter (4) has an air filter housing (5). The intake channel (3) opens with an intake opening (6) in a housing base (7) of the air filter housing (5). The intake opening (6) can be covered at least partially by a choke element (8). The choke element (8) is held on a choke carrier (9) so as to permit a limited movement of the choke element.

    Tensioning arrangement for a saw chain of a motor-driven chain saw
    19.
    发明授权
    Tensioning arrangement for a saw chain of a motor-driven chain saw 失效
    电动链锯锯链的张紧布置

    公开(公告)号:US5522143A

    公开(公告)日:1996-06-04

    申请号:US338874

    申请日:1994-11-14

    IPC分类号: B23D57/02 B27B17/14

    CPC分类号: B27B17/14

    摘要: The invention is directed to a tensioning arrangement for saw chains of motor-driven chain saws which include a device for longitudinally displacing the guide bar. The clamped guide bar is released so that the adjusting arrangement can be actuated for the longitudinal displacement of the guide bar. By rotating a disc having a spiral slot, a slide piece, which is coupled to the guide bar, is displaced in the longitudinal direction. Assembly is simplified and handling facilitated when the tension in the saw chain is adjusted. This is achieved by making the slide piece on the spiral disc so that it is not released therefrom but instead is held so as to be rotationally and longitudinally displaceable. The slide piece is fixedly connected to the guide bar by using appropriate attachment devices.

    摘要翻译: 本发明涉及一种用于电动链锯的锯链的张紧装置,其包括用于纵向移位导向杆的装置。 夹紧的导杆被释放,使得调节装置可以被致动以引导杆的纵向位移。 通过旋转具有螺旋槽的盘,联接到导杆的滑动件在纵向方向上移位。 当锯链中的张力被调整时,装配被简化和处理。 这是通过将滑动片制成螺旋盘而使其不被释放而是被保持为可旋转和纵向移位的。 滑块通过使用适当的附接装置固定地连接到导杆。

    Tensioning arrangement for a saw chain
    20.
    发明授权
    Tensioning arrangement for a saw chain 失效
    锯链的张紧布置

    公开(公告)号:US5491899A

    公开(公告)日:1996-02-20

    申请号:US296153

    申请日:1994-08-29

    IPC分类号: B27B17/14

    CPC分类号: B27B17/14 Y10T83/7239

    摘要: The invention is directed to a tensioning arrangement for a saw chain of a motor-driven chain saw. The saw chain runs on a guide bar mounted on the motor housing of the chain saw. The tensioning arrangement includes a rotatable disc having a spirally-shaped guide slot in which a lug of a slide piece engages. The longitudinal displacement of the guide bar is provided by rotating the disc. The guide slot in the disc extends over a rotational angle of at least 270.degree.. A still lesser slope of the guide slot is provided with a rotational angle in the range of 360.degree. to 450.degree.. The tensioning arrangement is especially suitable for adjusting the guide bar in motor-driven chain saws thereby adjusting the tension in the saw chain.

    摘要翻译: 本发明涉及一种用于电动链锯锯锯的张紧装置。 锯链在安装在链锯的马达壳体上的导杆上运行。 张紧装置包括具有螺旋状导向槽的可旋转盘,其中滑块的凸耳接合在其中。 通过旋转盘来提供导杆的纵向位移。 盘中的引导槽在至少270°的旋转角度上延伸。 引导槽的较小的斜面设置有360°至450°范围内的旋转角度。 张紧装置特别适用于调整电动链锯中的导杆,从而调节锯链中的张力。