Ignition circuit having a high-energy spark for an internal combustion engine
    1.
    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。

    Ignition circuit having a high-energy spark for an internal combustion engine
    4.
    发明授权
    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:US07363910B2

    公开(公告)日:2008-04-29

    申请号:US11494501

    申请日:2006-07-28

    IPC分类号: F02P3/08

    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). A pole wheel (10) revolves with the crankshaft (7) and is assigned to an induction loop (13). The pole wheel periodically changes the magnetic flux in the induction loop. An ignition capacitor (16) is charged by a charge coil (14) of the induction loop and is discharged via a discharge circuit (15) via an ignition coil (17). The ignition coil is connected to a spark plug (19) projecting into the combustion chamber. For achieving a powerful ignition spark, the discharge of the ignition capacitor 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。 极轮(10)与曲轴(7)一起旋转并分配给感应回路(13)。 极轮周期性地改变感应回路中的磁通量。 点火电容器(16)由感应回路的充电线圈(14)充电,经由点火线圈(17)经由放电电路(15)放电。 点火线圈连接到突出到燃烧室中的火花塞(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)防止点火电容器的放电。

    Two-cycle engine with a stratified charge
    5.
    发明授权
    Two-cycle engine with a stratified charge 有权
    具有分层充电的双循环发动机

    公开(公告)号:US06571756B1

    公开(公告)日:2003-06-03

    申请号:US09889065

    申请日:2001-07-06

    IPC分类号: F02B3304

    摘要: The invention relates to a two-cycle engine for a drive engine in a portable, manually operated tool. The combustion chamber formed in a cylinder is delimited by a piston that moves up and down, whereby the piston, by means of a connecting rod, drives a crankshaft rotatably mounted in a crankcase. The combustion chamber has an outlet for removing waste gases, and provided for supplying a fuel/air mixture prepared by a mixture preparation device, and combustion air, are gas-supplying channels that open into the combustion chamber. In order to reduce scavenging losses, it is provided that for the entire duration of the gas exchange exclusively air flows in the area near the outlet and exclusively fuel/air mixture flows out of the crankcase in the area further away from the outlet.

    摘要翻译: 本发明涉及一种用于便携式手动操作工具中的驱动发动机的双冲程发动机。 形成在气缸中的燃烧室由上下移动的活塞限定,借助连杆驱动活塞可旋转地安装在曲轴箱中的曲轴。 燃烧室具有用于除去废气的出口,用于供应由混合物制备装置和燃烧空气制备的燃料/空气混合物,是向燃烧室通入的气体供应通道。 为了减少清除损失,条件是,在气体交换的整个持续时间内,专用空气在出口附近的区域中流动,并且仅在燃料/空气混合物从更远离出口的区域中流出曲轴箱。

    Method for Operating an Internal Combustion Engine
    6.
    发明申请
    Method for Operating an Internal Combustion Engine 有权
    操作内燃机的方法

    公开(公告)号:US20080178844A1

    公开(公告)日:2008-07-31

    申请号:US12017518

    申请日:2008-01-22

    IPC分类号: F02D45/00

    摘要: In a method for operating an internal combustion engine, wherein the internal combustion engine has a cylinder in which a combustion chamber is provided that is delimited by a reciprocating piston guided in the cylinder, wherein the piston is connected by a connecting rod to a crankshaft and wherein the internal combustion engine has a device for supplying fuel and a device for igniting the fuel/air mixture in the combustion chamber at least one engine speed value of the internal combustion engine is determined and evaluated. A pre-ignition state of the internal combustion engine is determined based on the result of the evaluation step.

    摘要翻译: 在一种内燃机的操作方法中,其特征在于,所述内燃机具有气缸,在所述气缸中设置有由在所述气缸中引导的往复运动的活塞限定的燃烧室,所述活塞通过连杆与曲轴连接, 其中,所述内燃机具有用于供给燃料的装置和用于点燃所述燃烧室内的所述燃料/空气混合物的装置,确定并评估所述内燃机的至少一个发动机转速值。 基于评价工序的结果,确定内燃机的预先点火状态。

    Device for decanting a liquid
    7.
    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
    8.
    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
    9.
    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
    10.
    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。