Method for operating an internal combustion engine
    1.
    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:US20080264388A1

    公开(公告)日:2008-10-30

    申请号:US12149176

    申请日:2008-04-28

    IPC分类号: F02M69/54

    摘要: A method for operating an internal combustion engine having a fuel system which feeds fuel at a given pressure to a metering valve provides that a controller defines the opening time and the closing time of the metering valve and correspondingly actuates the metering valve so that the metering valve opens and closes at the defined times. In order to permit precise metering of fuel even in high-speed internal combustion engines there is provision for the controller to define at least one of the times for the opening or closing of the metering valve while taking into account the counterpressure actually prevailing at the outlet opening of the metering valve.

    摘要翻译: 一种用于操作具有将给定压力的燃料供给到计量阀的燃料系统的内燃机的方法,其特征在于,控制器限定计量阀的打开时间和关闭时间并相应地致动计量阀,使得计量阀 在规定的时间内打开和关闭。 为了即使在高速内燃机中也允许精确计量燃料,控制器规定了打开或关闭计量阀的时间中的至少一个,同时考虑到出口处实际上的反压力 打开计量阀。

    Method for operating an internal combustion engine
    2.
    发明授权
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07814888B2

    公开(公告)日:2010-10-19

    申请号:US12149176

    申请日:2008-04-28

    IPC分类号: F02M51/00

    摘要: A method for operating an internal combustion engine having a fuel system which feeds fuel at a given pressure to a metering valve provides that a controller defines the opening time and the closing time of the metering valve and correspondingly actuates the metering valve so that the metering valve opens and closes at the defined times. In order to permit precise metering of fuel even in high-speed internal combustion engines there is provision for the controller to define at least one of the times for the opening or closing of the metering valve while taking into account the counterpressure actually prevailing at the outlet opening of the metering valve.

    摘要翻译: 一种用于操作具有将给定压力的燃料供给到计量阀的燃料系统的内燃机的方法,其特征在于,控制器限定计量阀的打开时间和关闭时间并相应地致动计量阀,使得计量阀 在规定的时间内打开和关闭。 为了即使在高速内燃机中也允许精确计量燃料,控制器规定了打开或关闭计量阀的时间中的至少一个,同时考虑到出口处实际上的反压力 打开计量阀。

    Method for Determining the Crankshaft Position of a Rotating Crankshaft of an Internal Combustion Engine
    3.
    发明申请
    Method for Determining the Crankshaft Position of a Rotating Crankshaft of an Internal Combustion Engine 有权
    用于确定内燃机旋转曲轴的曲轴位置的方法

    公开(公告)号:US20080041144A1

    公开(公告)日:2008-02-21

    申请号:US11838233

    申请日:2007-08-14

    IPC分类号: G01L3/26

    摘要: The absolute crankshaft angle of an internal combustion engine of a hand-held power tool is to be determined. The engine has a cylinder with a combustion chamber delimited by a piston that drives a crankshaft in a crankcase. The crankcase is connected by a transfer passage to the combustion chamber and the transfer port of the transfer passage is piston-controlled. Ignition takes place at an adjusted crankshaft angle. The energy supply unit of the engine is driven by the crankshaft and provides electric energy for ignition. The crankshaft angle is determined in that a signal generator is provided as an energy supply unit and generates an alternating voltage signal caused by a crankshaft revolution. An operating pressure signal of the engine is detected by a pressure sensor. The output signals of the pressure sensor and of the signal generator are linked with one another for determining the absolute crankshaft angle.

    摘要翻译: 要确定手持式电动工具的内燃机的绝对曲轴角度。 发动机具有气缸,其具有由驱动曲轴箱中的曲轴的活塞限定的燃烧室。 曲轴箱通过传送通道连接到燃烧室,传送通道的传送口由活塞控制。 点火发生在调整后的曲轴角度。 发动机的能量供给单元由曲轴驱动,并提供点火用电能。 确定曲轴角度是指信号发生器被设置为能量供应单元并且产生由曲轴转动引起的交流电压信号。 发动机的工作压力信号由压力传感器检测。 压力传感器和信号发生器的输出信号彼此相连以确定绝对的曲轴角度。

    Method for determining the crankshaft position of a rotating crankshaft of an internal combustion engine
    4.
    发明授权
    Method for determining the crankshaft position of a rotating crankshaft of an internal combustion engine 有权
    用于确定内燃机的旋转曲轴的曲轴位置的方法

    公开(公告)号:US07621176B2

    公开(公告)日:2009-11-24

    申请号:US11838233

    申请日:2007-08-14

    IPC分类号: G01L3/26

    摘要: The absolute crankshaft angle of an internal combustion engine of a hand-held power tool is to be determined. The engine has a cylinder with a combustion chamber delimited by a piston that drives a crankshaft in a crankcase. The crankcase is connected by a transfer passage to the combustion chamber and the transfer port of the transfer passage is piston-controlled. Ignition takes place at an adjusted crankshaft angle. The energy supply unit of the engine is driven by the crankshaft and provides electric energy for ignition. The crankshaft angle is determined in that a signal generator is provided as an energy supply unit and generates an alternating voltage signal caused by a crankshaft revolution. An operating pressure signal of the engine is detected by a pressure sensor. The output signals of the pressure sensor and of the signal generator are linked with one another for determining the absolute crankshaft angle.

    摘要翻译: 要确定手持式电动工具的内燃机的绝对曲轴角度。 发动机具有气缸,其具有由驱动曲轴箱中的曲轴的活塞限定的燃烧室。 曲轴箱通过传送通道连接到燃烧室,传送通道的传送口由活塞控制。 点火发生在调整后的曲轴角度。 发动机的能量供给单元由曲轴驱动,并提供点火用电能。 确定曲轴角度是指信号发生器被设置为能量供应单元并且产生由曲轴转动引起的交流电压信号。 发动机的工作压力信号由压力传感器检测。 压力传感器和信号发生器的输出信号彼此相连以确定绝对的曲轴角度。

    Method and Device for Priming a Fuel Metering Device
    5.
    发明申请
    Method and Device for Priming a Fuel Metering Device 有权
    用于启动燃料计量装置的方法和装置

    公开(公告)号:US20100101523A1

    公开(公告)日:2010-04-29

    申请号:US12576468

    申请日:2009-10-09

    IPC分类号: F02M1/16

    摘要: In a method for priming a fuel metering device for an internal combustion engine with a piston arranged in a combustion chamber and driving a crankshaft that is rotatably supported in a crankcase, with a fuel pump that conveys fuel from a fuel tank to a metering valve that opens into a metering chamber at alternating operating pressure, and with a control unit that calculates and controls timing for the metering valve for metering a fuel quantity corresponding to a load situation of the internal combustion engine, the metering valve is kept open, independent of the calculated timing for the metering valve, for a priming duration in a starting phase of the internal combustion engine when the alternating operating pressure of the metering chamber at the mouth of the metering valve is negative and when a fuel system pressure in the fuel metering device is below a target pressure.

    摘要翻译: 在一种用于启动内燃机的燃料计量装置的方法中,其具有布置在燃烧室中的活塞并驱动可旋转地支撑在曲轴箱中的曲轴,燃料泵将燃料从燃料箱传送到计量阀, 在交替的操作压力下打开计量室,并且控制单元计算和控制计量阀的计时用于计量对应于内燃机的负载情况的燃料量的计时阀,计量阀保持打开,独立于 当计量阀的口处的计量室的交替操作压力为负时,并且当燃料计量装置中的燃料系统压力是在燃料计量装置的燃料系统压力时,计量阀的计时时间为内燃机起动阶段的起动持续时间 低于目标压力。

    Hand-guided work apparatus
    6.
    发明授权
    Hand-guided work apparatus 有权
    手动工作装置

    公开(公告)号:US08668025B2

    公开(公告)日:2014-03-11

    申请号:US13087025

    申请日:2011-04-14

    IPC分类号: B25B27/22

    摘要: A hand-guided work apparatus includes a combustion engine to drive a work tool. The combustion engine includes a crankcase (14) in which a crankshaft (16) is rotatably mounted about a rotational axis (44). A pressure sensor (27) and a temperature sensor (26) are arranged on the crankcase (14). The pressure sensor (27) and the temperature sensor (26) are arranged in a common sensor housing (31). In the typical put-down position (8) of the work apparatus, the pressure sensor (27) and the temperature sensor (26) are arranged below a plane (45) which is parallel to the horizontal storage surface (7) and contains the rotational axis (44) of the crankshaft (16). A connecting channel (25) is formed in the sensor housing (31). The connecting channel (25) connects the pressure sensor (27) to the crankcase interior (20) and the base (35) of the connecting channel (25) slopes down toward the crankcase interior (20) in the typical put-down position (8) of the work apparatus.

    摘要翻译: 手动作业装置包括驱动作业工具的内燃机。 内燃机包括曲轴箱(14),曲轴(16)围绕旋转轴线(44)可旋转地安装在该曲轴箱中。 压力传感器(27)和温度传感器(26)布置在曲轴箱(14)上。 压力传感器(27)和温度传感器(26)布置在公共传感器壳体(31)中。 在工作装置的典型的放下位置(8)中,压力传感器(27)和温度传感器(26)布置在与水平存储表面(7)平行的平面(45)的下方,并且包含 曲轴(16)的旋转轴线(44)。 连接通道(25)形成在传感器壳体(31)中。 连接通道(25)将压力传感器(27)连接到曲轴箱内部(20),并且连接通道(25)的基座(35)在典型的放下位置(...)向着曲轴箱内部(20) 8)工作装置。

    Hand-Guided Work Apparatus
    7.
    发明申请
    Hand-Guided Work Apparatus 有权
    手工工具

    公开(公告)号:US20110253401A1

    公开(公告)日:2011-10-20

    申请号:US13087025

    申请日:2011-04-14

    IPC分类号: B25B29/00

    摘要: A hand-guided work apparatus includes a combustion engine to drive a work tool. The combustion engine includes a crankcase (14) in which a crankshaft (16) is rotatably mounted about a rotational axis (44). A pressure sensor (27) and a temperature sensor (26) are arranged on the crankcase (14). The pressure sensor (27) and the temperature sensor (26) are arranged in a common sensor housing (31). In the typical put-down position (8) of the work apparatus, the pressure sensor (27) and the temperature sensor (26) are arranged below a plane (45) which is parallel to the horizontal storage surface (7) and contains the rotational axis (44) of the crankshaft (16). A connecting channel (25) is formed in the sensor housing (31). The connecting channel (25) connects the pressure sensor (27) to the crankcase interior (20) and the base (35) of the connecting channel (25) slopes down toward the crankcase interior (20) in the typical put-down position (8) of the work apparatus.

    摘要翻译: 手动作业装置包括驱动作业工具的内燃机。 内燃机包括曲轴箱(14),曲轴(16)围绕旋转轴线(44)可旋转地安装在该曲轴箱中。 压力传感器(27)和温度传感器(26)布置在曲轴箱(14)上。 压力传感器(27)和温度传感器(26)布置在公共传感器壳体(31)中。 在工作装置的典型的放下位置(8)中,压力传感器(27)和温度传感器(26)布置在与水平存储表面(7)平行的平面(45)的下方,并且包含 曲轴(16)的旋转轴线(44)。 连接通道(25)形成在传感器壳体(31)中。 连接通道(25)将压力传感器(27)连接到曲轴箱内部(20),并且连接通道(25)的基座(35)在典型的放下位置(...)向着曲轴箱内部(20) 8)工作装置。

    Method and device for priming a fuel metering device
    8.
    发明授权
    Method and device for priming a fuel metering device 有权
    燃料计量装置起动方法和装置

    公开(公告)号:US08042511B2

    公开(公告)日:2011-10-25

    申请号:US12576468

    申请日:2009-10-09

    IPC分类号: F02M1/16

    摘要: In a method for priming a fuel metering device for an internal combustion engine with a piston arranged in a combustion chamber and driving a crankshaft that is rotatably supported in a crankcase, with a fuel pump that conveys fuel from a fuel tank to a metering valve that opens into a metering chamber at alternating operating pressure, and with a control unit that calculates and controls timing for the metering valve for metering a fuel quantity corresponding to a load situation of the internal combustion engine, the metering valve is kept open, independent of the calculated timing for the metering valve, for a priming duration in a starting phase of the internal combustion engine when the alternating operating pressure of the metering chamber at the mouth of the metering valve is negative and when a fuel system pressure in the fuel metering device is below a target pressure.

    摘要翻译: 在一种用于启动内燃机的燃料计量装置的方法中,其具有布置在燃烧室中的活塞并驱动可旋转地支撑在曲轴箱中的曲轴,燃料泵将燃料从燃料箱传送到计量阀, 在交替的操作压力下打开计量室,并且控制单元计算和控制计量阀的计时用于计量对应于内燃机的负载情况的燃料量的计时阀,计量阀保持打开,独立于 当计量阀的口处的计量室的交替操作压力为负时,并且当燃料计量装置中的燃料系统压力是在燃料计量装置的燃料系统压力时,计量阀的计时时间为内燃机起动阶段的起动持续时间 低于目标压力。

    METHOD FOR LEAK-TESTING AND DEVICE FOR CARRYING OUT THE METHOD
    9.
    发明申请
    METHOD FOR LEAK-TESTING AND DEVICE FOR CARRYING OUT THE METHOD 有权
    泄漏测试方法及其实施方法

    公开(公告)号:US20130145825A1

    公开(公告)日:2013-06-13

    申请号:US13693414

    申请日:2012-12-04

    申请人: Arno Kinnen

    发明人: Arno Kinnen

    IPC分类号: G01M3/28

    摘要: A method for leak-testing a fuel supply system has been provided, wherein the fuel supply system comprises a fuel tank, a fuel injection valve, fuel lines between the fuel tank and the fuel valve, and a control valve controlled by a diaphragm, and wherein the diaphragm bounds a control chamber on one side, the method comprising: acting upon the portion of the fuel supply system upstream of the control valve with a predetermined pressure level, acting upon the side of the diaphragm facing away from the control chamber with a counterforce, wherein the counterforce is equal or greater to the predetermined pressure level. A device for leak-testing a fuel system according to the above method, wherein the device comprises a test pressure unit with at least one test pressure line, wherein said test pressure line is connectable to the fuel supply system.

    摘要翻译: 已经提供了一种用于对燃料供应系统进行泄漏测试的方法,其中燃料供应系统包括燃料箱,燃料喷射阀,燃料箱和燃料阀之间的燃料管路以及由隔膜控制的控制阀,以及 其中所述隔膜在一侧限定控制室,所述方法包括:以预定压力水平作用在所述控制阀上游的所述燃料供应系统的所述部分上,所述预定压力水平作用在所述隔膜的背离所述控制室的一侧, 反作用力,其中所述反作用力等于或大于所述预定压力水平。 一种用于根据上述方法对燃料系统进行泄漏测试的装置,其中所述装置包括具有至少一个测试压力线的测试压力单元,其中所述测试压力线可连接到所述燃料供应系统。

    Carburetor
    10.
    发明授权
    Carburetor 失效
    化油器

    公开(公告)号:US07000906B2

    公开(公告)日:2006-02-21

    申请号:US10871058

    申请日:2004-06-21

    IPC分类号: F02M7/08

    摘要: A carburetor for an internal combustion engine includes an intake channel section (2) as well as a throttle element journalled in the intake channel section (2). The throttle element is adjustable between a full-load position (25) and an idle position (26). A pump (20, 30) is provided for additional fuel metering and this pump includes a pumping chamber (24, 34) and a pump piston (21, 31) guided in the pumping chamber (24, 34). The position of the pump piston (21, 31) is coupled to the position of the throttle element. To ensure an optimal supply of the internal combustion engine with fuel in each operating state, the pump piston (21, 31) is so coupled to the throttle element that fuel is pumped from the pumping chamber (24, 34) into the intake channel section (2) when there is a displacement of the throttle element from the full throttle position (25) into the idle position (26).

    摘要翻译: 用于内燃机的化油器包括进气通道部分(2)以及安装在进气通道部分(2)中的节流元件。 节流元件可在满载位置(25)和空转位置(26)之间调节。 提供泵(20,30)以用于额外的燃料计量,并且该泵包括在泵送室(24,34)中引导的泵送室(24,34)和泵活塞(21,31)。 泵活塞(21,31)的位置联接到节流元件的位置。 为了确保在每个操作状态下具有燃料的内燃机的最佳供应,泵活塞(21,31)如此联接到节流元件,燃料从泵送室(24,34)泵送到进气通道部分 (2)当节气门元件从全节气门位置(25)移动到空转位置(26)时。