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公开(公告)号：US07894974B2
公开(公告)日：2011-02-22
申请号：US12165737
申请日：2008-07-01
申请人： Andreas Bähner , Andreas Lingen , Georg Maier , Heinrich Leufen , Stanislaw Cichon , Leo Kieβling
发明人： Andreas Bähner , Andreas Lingen , Georg Maier , Heinrich Leufen , Stanislaw Cichon , Leo Kieβling
IPC分类号： F02D45/00
CPC分类号： F02D41/2422 , F02B2075/025 , F02D2400/04 , F02P1/02 , F02P5/1506 , F02P5/1508 , F02P9/002 , Y02T10/46
摘要： A two-stroke engine has a cylinder with a combustion chamber delimited by a reciprocating piston, wherein the piston drives in rotation a crankshaft, and wherein a spark plug projects into the combustion chamber and ignites a fuel/air mixture. The two-stroke engine further has devices for supplying fuel and combustion air to the combustion chamber and a control unit that determines the ignition timing based on an ignition map. The ignition map indicates the ignition timing as a function of the engine speed for at least one first and one second operating states and for at least one first and one second engine speed ranges. The engine is controlled in that for an engine cycle the ignition timing is set in the second operating state at least within the first engine speed range based on the engine speed and on the number of engine cycles since the last combustion.
摘要翻译： 二冲程发动机具有气缸，燃烧室由往复运动的活塞限定，其中活塞驱动曲轴旋转，并且其中火花塞突出到燃烧室中并点燃燃料/空气混合物。 二冲程发动机还具有用于向燃烧室供给燃料和燃烧空气的装置以及基于点火图确定点火正时的控制单元。 点火图表示对于至少一个第一和第二操作状态以及至少一个第一和第二发动机转速范围，作为发动机转速的函数的点火正时。 发动机被控制为对于发动机循环，基于发动机转速以及自上次燃烧以来的发动机循环次数，至少在第一发动机转速范围内将点火正时设定在第二运行状态。
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公开(公告)号：US20090012699A1
公开(公告)日：2009-01-08
申请号：US12165737
申请日：2008-07-01
申请人： Andreas Bahner , Andreas Lingen , Georg Maier , Heinrich Leufen , Stanislaw Cichon , Leo Kiessling
发明人： Andreas Bahner , Andreas Lingen , Georg Maier , Heinrich Leufen , Stanislaw Cichon , Leo Kiessling
IPC分类号： F02D45/00
CPC分类号： F02D41/2422 , F02B2075/025 , F02D2400/04 , F02P1/02 , F02P5/1506 , F02P5/1508 , F02P9/002 , Y02T10/46
摘要： A two-stroke engine has a cylinder with a combustion chamber delimited by a reciprocating piston, wherein the piston drives in rotation a crankshaft, and wherein a spark plug projects into the combustion chamber and ignites a fuel/air mixture. The two-stroke engine further has devices for supplying fuel and combustion air to the combustion chamber and a control unit that determines the ignition timing based on an ignition map. The ignition map indicates the ignition timing as a function of the engine speed for at least one first and one second operating states and for at least one first and one second engine speed ranges. The engine is controlled in that for an engine cycle the ignition timing is set in the second operating state at least within the first engine speed range based on the engine speed and on the number of engine cycles since the last combustion.
摘要翻译： 二冲程发动机具有气缸，燃烧室由往复运动的活塞限定，其中活塞驱动曲轴旋转，并且其中火花塞突出到燃烧室中并点燃燃料/空气混合物。 二冲程发动机还具有用于向燃烧室供给燃料和燃烧空气的装置以及基于点火图确定点火正时的控制单元。 点火图表示对于至少一个第一和第二操作状态以及至少一个第一和第二发动机转速范围，作为发动机转速的函数的点火正时。 发动机被控制为对于发动机循环，基于发动机转速以及自上次燃烧以来的发动机循环次数，至少在第一发动机转速范围内将点火正时设定在第二运行状态。
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公开(公告)号：US07735465B2
公开(公告)日：2010-06-15
申请号：US11826153
申请日：2007-07-12
申请人： Nils Kunert , Jan Borchardt , Andreas Bähner , Predag Ostojic , Andreas Lingen
发明人： Nils Kunert , Jan Borchardt , Andreas Bähner , Predag Ostojic , Andreas Lingen
CPC分类号： F02P9/005 , F02D41/0087 , F02D41/3058 , F02D2400/04 , F02D2400/06
摘要： An internal combustion engine includes a cylinder (2) wherein a combustion chamber (5) is formed. The engine also includes devices for metering fuel and combustion air as well as an ignition device for igniting the mixture in the combustion chamber (5). A method for operating the internal combustion engine provides that fuel and combustion air are supplied to the engine and the mixture is ignited in the combustion chamber (5). The combustion chamber (5) is delimited by a piston (7) which drives a crankshaft (25) rotatably journalled in a crankcase (3). A control is provided which controls the supply of fuel and the ignition of the mixture in the combustion chamber (5). The internal combustion engine is so controlled in at least one operating state that the number of combustions is less than the number of engine cycles in the same time span. To avoid the formation of self ignitions, the operating state is a high rpm range wherein the rpm lies above the rated rpm and below the rpm in a regulating range.
摘要翻译： 内燃机包括形成有燃烧室（5）的气缸（2）。 发动机还包括用于计量燃料和燃烧空气的装置以及用于点燃燃烧室（5）中的混合物的点火装置。 用于操作内燃机的方法提供燃料和燃烧空气被供给到发动机，并且混合物在燃烧室（5）中点燃。 燃烧室（5）由驱动曲轴（25）的活塞（7）限定，该曲轴（25）可旋转地轴颈安装在曲轴箱（3）中。 提供控制燃料供给和混合物在燃烧室（5）中点燃的控制装置。 内燃机在至少一个操作状态下被控制，使燃烧次数小于发动机循环次数在同一时间跨度。 为了避免形成自点火，操作状态是高转速范围，其中转速高于额定转速并且在调节范围内低于转速。
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公开(公告)号：US06932032B2
公开(公告)日：2005-08-23
申请号：US10986115
申请日：2004-11-12
申请人： Andreas Lingen , Matthias Hehnke , Joachim Baumhauer , Andreas Bähner , Michael Joos , Axel Klimmek , Hans Holderle
发明人： Andreas Lingen , Matthias Hehnke , Joachim Baumhauer , Andreas Bähner , Michael Joos , Axel Klimmek , Hans Holderle
CPC分类号： F02D9/109 , F02B25/20 , F02B33/04 , F02B63/02 , F02B2075/025 , F02D2009/0279 , F02M35/1019 , F02M35/108
摘要： A two-stroke engine (1) has a combustion chamber (3) disposed in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5). The piston (5) drives a crankshaft (7) via a connecting rod (6) and the crankshaft (7) is rotatably journalled in a crankcase (4). The two-stroke engine (1) has an intake channel (8) for the supply of fuel into the crankcase (4), an outlet (13) for exhaust gases from the combustion chamber (3) and an air channel (10) for the supply of substantially fuel-free air. A throttle element (18) is mounted in the air channel (10). At pregiven positions of the piston (5), the crankcase (4) is connected via at least one transfer channel (14) to the combustion chamber (3). In order to prevent air from being drawn by suction into the air channel because of leakages during idle or at low rpm, a fluid connection is provided between the air channel (10) downstream of the throttle element (18) and the crankcase (4) for underpressure compensation which connection is present at least partially for a position of the piston from 90° ahead of bottom dead center to 90° after bottom dead center. A connection between the crankcase (4) and the intake channel (8) can be provided in lieu of, or in addition to, the connection to the air channel (10).
摘要翻译： 二冲程发动机（1）具有设置在气缸（2）中的燃烧室（3）。 燃烧室（3）由往复活塞（5）限定。 活塞（5）通过连杆（6）驱动曲轴（7），曲轴（7）可旋转地支承在曲轴箱（4）中。 二冲程发动机（1）具有用于向曲轴箱（4）供应燃料的进气通道（8），用于来自燃烧室（3）的废气的出口（13）和用于 供应基本上无燃料的空气。 节流元件（18）安装在空气通道（10）中。 在活塞（5）的预制位置，曲轴箱（4）经由至少一个输送通道（14）连接到燃烧室（3）。 为了防止由于怠速或低转速下的泄漏而吸入空气而吸入空气，在节气门元件（18）下游的空气通道（10）和曲轴箱（4）之间设有流体连接， 对于负压补偿，至少部分地将活塞的位置从下死点之前90°至下死点之后的90°存在。 可以提供曲轴箱（4）和进气通道（8）之间的连接来代替或除了与空气通道（10）的连接。
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公开(公告)号：US07603983B2
公开(公告)日：2009-10-20
申请号：US12216564
申请日：2008-07-08
申请人： Andreas Bähner , Andreas Lingen , Hans Nickel , Bärbel Nickel, legal representative , Claus Naegele
发明人： Andreas Bähner , Andreas Lingen , Hans Nickel , Claus Naegele
IPC分类号： F02M7/26
摘要： A carburetor (1, 51) has an intake channel (2) wherein a throttle element and a choke element are arranged with the choke element being upstream of the throttle element. The choke element is displaceable between an operating position (8) and at least one starting position (9). A first fuel path is provided which supplies fuel to the intake channel section (2) in dependence upon the underpressure present therein. A first controllable valve (20) for controlling the supplied fuel quantity is mounted in the first fuel path. In order to achieve an adapted fuel supply in different operating states, a second fuel path is provided which defines a bypass line to the first valve (20). A second valve (44, 54) is mounted in the second fuel path. A method for operating the carburetor (1, 51) provides that the second valve (44, 54) is actuated in dependence upon at least one operating parameter of the carburetor (1, 51).
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公开(公告)号：US20090013965A1
公开(公告)日：2009-01-15
申请号：US12216564
申请日：2008-07-08
申请人： Andreas Bahner , Andreas Lingen , Hans Nickel , Barbel Nickel , Claus Naegele
发明人： Andreas Bahner , Andreas Lingen , Hans Nickel , Barbel Nickel , Claus Naegele
IPC分类号： F02M7/24
摘要： A carburetor (1, 51) has an intake channel (2) wherein a throttle element and a choke element are arranged with the choke element being upstream of the throttle element. The choke element is displaceable between an operating position (8) and at least one starting position (9). A first fuel path is provided which supplies fuel to the intake channel section (2) in dependence upon the underpressure present therein. A first controllable valve (20) for controlling the supplied fuel quantity is mounted in the first fuel path. In order to achieve an adapted fuel supply in different operating states, a second fuel path is provided which defines a bypass line to the first valve (20). A second valve (44, 54) is mounted in the second fuel path. A method for operating the carburetor (1, 51) provides that the second valve (44, 54) is actuated in dependence upon at least one operating parameter of the carburetor (1, 51).
摘要翻译： 化油器（1,51）具有进气通道（2），其中节流元件和扼流元件布置有扼流元件位于节流元件的上游。 扼流元件可在操作位置（8）和至少一个起始位置（9）之间移动。 提供了第一燃料通道，其根据其中存在的负压向燃料通道部分（2）供应燃料。 用于控制供给燃料量的第一可控阀（20）安装在第一燃料路径中。 为了在不同的操作状态下实现适应的燃料供应，提供了限定到第一阀（20）的旁通管线的第二燃料通路。 第二阀（44,54）安装在第二燃料路径中。 用于操作化油器（1,51）的方法规定，第二阀（44,54）根据化油器（1,51）的至少一个操作参数被致动。
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公开(公告)号：US20050098124A1
公开(公告)日：2005-05-12
申请号：US10986115
申请日：2004-11-12
申请人： Andreas Lingen , Matthias Hehnke , Joachim Baumhauer , Andreas Bahner , Michael Joos , Axel Klimmek , Hans Holderle
发明人： Andreas Lingen , Matthias Hehnke , Joachim Baumhauer , Andreas Bahner , Michael Joos , Axel Klimmek , Hans Holderle
CPC分类号： F02D9/109 , F02B25/20 , F02B33/04 , F02B63/02 , F02B2075/025 , F02D2009/0279 , F02M35/1019 , F02M35/108
摘要： A two-stroke engine (1) has a combustion chamber (3) disposed in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5). The piston (5) drives a crankshaft (7) via a connecting rod (6) and the crankshaft (7) is rotatably journalled in a crankcase (4). The two-stroke engine (1) has an intake channel (8) for the supply of fuel into the crankcase (4), an outlet (13) for exhaust gases from the combustion chamber (3) and an air channel (10) for the supply of substantially fuel-free air. A throttle element (18) is mounted in the air channel (10). At pregiven positions of the piston (5), the crankcase (4) is connected via at least one transfer channel (14) to the combustion chamber (3). In order to prevent air from being drawn by suction into the air channel because of leakages during idle or at low rpm, a fluid connection is provided between the air channel (10) downstream of the throttle element (18) and the crankcase (4) for underpressure compensation which connection is present at least partially for a position of the piston from 90° ahead of bottom dead center to 90° after bottom dead center. A connection between the crankcase (4) and the intake channel (8) can be provided in lieu of, or in addition to, the connection to the air channel (10).
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公开(公告)号：US08662047B2
公开(公告)日：2014-03-04
申请号：US12149622
申请日：2008-05-06
申请人： Predag Ostojic , Andreas Lingen , Michael Schmid , Jörg Amann
发明人： Predag Ostojic , Andreas Lingen , Michael Schmid , Jörg Amann
CPC分类号： F02N19/004 , F02B25/14 , F02B2075/025 , F02D15/04 , F02D2400/06
摘要： A handheld work apparatus has an internal combustion engine (9, 9′, 9″) and a starter device (8). The internal combustion engine has a piston (10, 10″) which has at least one piston ring (37, 38). In order to avoid a delay when starting the engine, at least one recess is provided in the cylinder bore (26) which bridges the at least one piston ring (37, 38) in at least one position of the piston (10, 10′) and which has a distance (n, o, p) to all function openings of the engine (9, 9′, 9″) configured in the cylinder bore (26). To reduce the compression in the combustion chamber (25), the piston (10′) has only one piston ring (37) or two piston rings (37, 38) are provided having respective piston ring gaps (39, 40) defining an angle (β) which is up to approximately 45°.
摘要翻译： 手持式作业装置具有内燃机（9,9'，9“）和起动装置（8）。 内燃机具有至少一个活塞环（37,38）的活塞（10,10“）。 为了在启动发动机时避免延迟，在缸孔（26）中设置至少一个凹槽，该凹槽将活塞（10,10'）的至少一个位置上的至少一个活塞环（37,38） ），并且其具有构造在气缸孔（26）中的发动机（9,9'，9“）的所有功能开口的距离（n，o，p）。 为了减小燃烧室（25）中的压缩，活塞（10'）仅具有一个活塞环（37）或两个活塞环（37,38），其具有相应的活塞环间隙（39,40） （β），其高达约45°。
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公开(公告)号：US20090126672A1
公开(公告)日：2009-05-21
申请号：US12149622
申请日：2008-05-06
申请人： Predag Ostojic , Andreas Lingen , Michael Schmid , Jorg Amann
发明人： Predag Ostojic , Andreas Lingen , Michael Schmid , Jorg Amann
IPC分类号： F02F1/00
CPC分类号： F02N19/004 , F02B25/14 , F02B2075/025 , F02D15/04 , F02D2400/06
摘要： A handheld work apparatus has an internal combustion engine (9, 9′, 9″) and a starter device (8). The internal combustion engine has a piston (10, 10″) which has at least one piston ring (37, 38). In order to avoid a delay when starting the engine, at least one recess is provided in the cylinder bore (26) which bridges the at least one piston ring (37, 38) in at least one position of the piston (10, 10′) and which has a distance (n, o, p) to all function openings of the engine (9, 9′, 9″) configured in the cylinder bore (26). To reduce the compression in the combustion chamber (25), the piston (10′) has only one piston ring (37) or two piston rings (37, 38) are provided having respective piston ring gaps (39, 40) defining an angle (β) which is up to approximately 45°.
摘要翻译： 手持式作业装置具有内燃机（9,9'，9“）和起动装置（8）。 内燃机具有至少一个活塞环（37,38）的活塞（10,10“）。 为了在启动发动机时避免延迟，至少一个凹槽设置在气缸孔（26）中，该凹槽将活塞（10,10'）的至少一个位置上的至少一个活塞环（37,38） ），并且其具有构造在气缸孔（26）中的发动机（9,9'，9“）的所有功能开口的距离（n，o，p）。 为了减小燃烧室（25）中的压缩，活塞（10'）仅具有一个活塞环（37）或两个活塞环（37,38），其具有相应的活塞环间隙（39,40） （β），其高达约45°。
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公开(公告)号：US20080011271A1
公开(公告)日：2008-01-17
申请号：US11826153
申请日：2007-07-12
申请人： Nils Kunert , Jan Borchardt , Andreas Bahner , Predag Ostojic , Andreas Lingen
发明人： Nils Kunert , Jan Borchardt , Andreas Bahner , Predag Ostojic , Andreas Lingen
IPC分类号： F02P5/00
CPC分类号： F02P9/005 , F02D41/0087 , F02D41/3058 , F02D2400/04 , F02D2400/06
摘要： An internal combustion engine includes a cylinder (2) wherein a combustion chamber (5) is formed. The engine also includes devices for metering fuel and combustion air as well as an ignition device for igniting the mixture in the combustion chamber (5). A method for operating the internal combustion engine provides that fuel and combustion air are supplied to the engine and the mixture is ignited in the combustion chamber (5). The combustion chamber (5) is delimited by a piston (7) which drives a crankshaft (25) rotatably journalled in a crankcase (3). A control is provided which controls the supply of fuel and the ignition of the mixture in the combustion chamber (5). The internal combustion engine is so controlled in at least one operating state that the number of combustions is less than the number of engine cycles in the same time span. To avoid the formation of self ignitions, the operating state is a high rpm range wherein the rpm lies above the rated rpm and below the rpm in a regulating range.
摘要翻译： 内燃机包括形成有燃烧室（5）的气缸（2）。 发动机还包括用于计量燃料和燃烧空气的装置以及用于点燃燃烧室（5）中的混合物的点火装置。 用于操作内燃机的方法提供燃料和燃烧空气被供给到发动机，并且混合物在燃烧室（5）中点燃。 燃烧室（5）由驱动曲轴（25）的活塞（7）限定，该曲轴可转动地轴颈安装在曲轴箱（3）中。 提供控制燃料供给和混合物在燃烧室（5）中点燃的控制装置。 内燃机在至少一个操作状态下被控制，使燃烧次数小于发动机循环次数在同一时间跨度。 为了避免形成自点火，操作状态是高转速范围，其中转速高于额定转速并且在调节范围内低于转速。
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