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公开(公告)号：US20180216554A1
公开(公告)日：2018-08-02
申请号：US15886705
申请日：2018-02-01
发明人： Andreas Baehner , Michael Dietenberger , Martin Kiesner , Florian Hoche , Klaus Geyer , Steffen Bantle , Friedrich Hollmeier , Frederik Herrmann , Jochen Gantert , Karsten Schmidt
IPC分类号： F02D41/06
CPC分类号： F02D41/061 , F02D19/0607 , F02D31/007 , F02D35/0053 , F02D41/062 , F02D41/068 , F02D41/2432 , F02D41/2454 , F02D41/3076 , F02D2001/009 , F02D2200/604 , F02D2400/04 , F02D2400/06 , F02M1/08 , F02M7/10
摘要： The invention relates to a method for adapting the composition of a mixture of fuel and combustion air. The mixture is supplied to a combustion chamber of a mixture-lubricated combustion engine in a work apparatus. The fuel is supplied to the combustion engine via a controlled fuel valve. In an operating state (I) of the combustion engine, the quantity of fuel is metered by the fuel valve. For the purpose of adapting the composition of the mixture, the combustion engine is shifted into a special operating state (II) which differs from the normal operating state (I). After starting, the combustion engine is operated in a first rotational speed range (B) for a prespecified operating time (Tmin), wherein, after the prespecified operating time (Tmin) has elapsed, the operating state (II) for adapting the composition of the mixture is initiated by a prespecified user action.
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公开(公告)号：US10774765B2
公开(公告)日：2020-09-15
申请号：US16028231
申请日：2018-07-05
发明人： Klaus Geyer , Martin Kiesner , Joerg Praeger , Steffen Bantle , David Fallscheer , Erik Ames
摘要： A method is for starting a combustion engine having a pull-rope starter. A fuel/air mixture is fed to the engine via an intake channel. The mixture is ignited by a spark plug. The combustion drives the piston downward and drives a crankshaft rotationally. The fuel system has a fuel channel opening into the intake channel. An electric fuel valve is open in its currentless state and closes a fuel channel only when an operating voltage is applied. An electronic control unit actuates the fuel valve and triggers an ignition spark and is utilized by a generator to supply energy to the control unit, the fuel valve and the ignition device. To prevent excessive enriching of the fuel/air mixture during starting, the energy, which is generated at the beginning of the rotation of the crankshaft, is used to first close the fuel valve before the control unit triggers an ignition spark.
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公开(公告)号：US10330038B2
公开(公告)日：2019-06-25
申请号：US15886705
申请日：2018-02-01
发明人： Andreas Baehner , Michael Dietenberger , Martin Kiesner , Florian Hoche , Klaus Geyer , Steffen Bantle , Friedrich Hollmeier , Frederik Herrmann , Jochen Gantert , Karsten Schmidt
IPC分类号： F02D41/06 , F02D41/24 , F02D41/30 , F02M7/10 , F02D31/00 , F02D35/00 , F02M1/08 , F02D1/00 , F02D19/06
摘要： The invention relates to a method for adapting the composition of a mixture of fuel and combustion air. The mixture is supplied to a combustion chamber of a mixture-lubricated combustion engine in a work apparatus. The fuel is supplied to the combustion engine via a controlled fuel valve. In an operating state (I) of the combustion engine, the quantity of fuel is metered by the fuel valve. For the purpose of adapting the composition of the mixture, the combustion engine is shifted into a special operating state (II) which differs from the normal operating state (I). After starting, the combustion engine is operated in a first rotational speed range (B) for a prespecified operating time (Tmin), wherein, after the prespecified operating time (Tmin) has elapsed, the operating state (II) for adapting the composition of the mixture is initiated by a prespecified user action.
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公开(公告)号：US20180313284A1
公开(公告)日：2018-11-01
申请号：US16028231
申请日：2018-07-05
发明人： Klaus Geyer , Martin Kiesner , Joerg Praeger , Steffen Bantle , David Fallscheer , Erik Ames
CPC分类号： F02D41/062 , F02D41/067 , F02D41/3005 , F02D41/34 , F02D2200/101 , F02D2400/06 , F02N3/02 , F02P1/00 , F02P5/045 , F02P5/1506
摘要： A method is for starting a combustion engine having a pull-rope starter. A fuel/air mixture is fed to the engine via an intake channel. The mixture is ignited by a spark plug. The combustion drives the piston downward and drives a crankshaft rotationally. The fuel system has a fuel channel opening into the intake channel. An electric fuel valve is open in its currentless state and closes a fuel channel only when an operating voltage is applied. An electronic control unit actuates the fuel valve and triggers an ignition spark and is utilized by a generator to supply energy to the control unit, the fuel valve and the ignition device. To prevent excessive enriching of the fuel/air mixture during starting, the energy, which is generated at the beginning of the rotation of the crankshaft, is used to first close the fuel valve before the control unit triggers an ignition spark.
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公开(公告)号：US20150047593A1
公开(公告)日：2015-02-19
申请号：US14462155
申请日：2014-08-18
发明人： Klaus Geyer , Martin Kiesner , Joerg Praeger , Steffen Bantle , David Fallscheer , Erik Ames
CPC分类号： F02D41/062 , F02B63/02 , F02B2075/025 , F02D39/04 , F02D41/20 , F02D41/30 , F02D2041/2051 , F02D2200/1012 , F02D2400/04 , F02D2400/06 , F02M1/02 , F02M3/02 , F02M3/05 , F02M69/34 , F02M69/462 , F02N3/02 , F02P1/00 , F02P5/1506 , F02P5/1558 , F02P9/00 , Y02T10/46
摘要： A method is for starting a combustion engine having a pull-rope starter. A fuel/air mixture is fed to the engine via an intake channel. The mixture is ignited by a spark plug. The combustion drives the piston downward and drives a crankshaft rotationally. The fuel system has a fuel channel opening into the intake channel. An electric fuel valve is open in its currentless state and closes a fuel channel only when an operating voltage is applied. An electronic control unit actuates the fuel valve and triggers an ignition spark and is utilized by a generator to supply energy to the control unit, the fuel valve and the ignition device. To prevent excessive enriching of the fuel/air mixture during starting, the energy, which is generated at the beginning of the rotation of the crankshaft, is used to first close the fuel valve before the control unit triggers an ignition spark.
摘要翻译： 一种用于启动具有拉绳起动器的内燃机的方法。 燃料/空气混合物通过进气通道供给到发动机。 混合物被火花塞点燃。 燃烧驱动活塞向下并旋转地驱动曲轴。 燃料系统具有通向进气通道的燃料通道。 电动燃料阀在其无电流状态下打开，仅在施加工作电压时关闭燃料通道。 电子控制单元致动燃料阀并触发点火火花，并由发电机利用来向控制单元，燃料阀和点火装置供应能量。 为了防止起动时燃料/空气混合物的过度富集，在曲轴开始时产生的能量用于在控制单元触发点火火花之前首先关闭燃料阀。
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