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1. 发明授权

US07331276B2 Piston for a two-cycle engine 有权
标题翻译：活塞式二冲程发动机
公开(公告)号：US07331276B2
公开(公告)日：2008-02-19
申请号：US11336526
申请日：2006-01-20
申请人： Helmut Schleβmann , Tobias Wurster , Andreas Bähner , Ralf-Rainer Kemmler
发明人： Helmut Schleβmann , Tobias Wurster , Andreas Bähner , Ralf-Rainer Kemmler
IPC分类号： F16J1/04
CPC分类号： F02F3/02 , F02F3/0076
摘要： A piston for a two-cycle engine having a piston head and a piston wall in which are disposed wrist pin eyes. At least one undercut is formed between the underside of the piston head and the wrist pin eyes at a distance from the piston head. The undercut extends from the interior of the piston toward the piston wall. A respective thickened portion is provided in at least one region of the piston that is rotationally shifted about the longitudinal axis of the piston by 90° relative to one of the wrist pin eyes. The thickened portion is disposed at a distance below the piston head and extends into the interior of the piston.
摘要翻译：一种用于具有活塞头和活塞壁的双冲程发动机的活塞，其中设置有腕针眼睛。在活塞头的下侧和与活塞头之间的距离处的腕针眼睛之间形成至少一个底切。底切从活塞的内部朝向活塞壁延伸。相应的加厚部分设置在活塞的至少一个区域中，所述至少一个区域围绕活塞的纵向轴线相对于其中一个腕针眼旋转90°。加厚部分设置在活塞头下方一段距离处并延伸到活塞的内部。

2. 发明授权

US06395049B2 Combination of an air filter and a membrane carburetor 有权
标题翻译：空气过滤器和膜式化油器的组合
公开(公告)号：US06395049B2
公开(公告)日：2002-05-28
申请号：US09741864
申请日：2000-12-22
申请人： Bernd Knödler , Andreas Bähner
发明人： Bernd Knödler , Andreas Bähner
IPC分类号： B01D3530
CPC分类号： F02M35/10019 , F02M17/04 , F02M35/04 , F02M35/10196 , F05C2225/08 , Y10S55/28
摘要： The invention relates to the combination of an air filter and a membrane carburetor (1). The membrane carburetor (1) has an intake channel section (3) configured in the carburetor housing (2) into which the fuel-conducting channels (4, 4′) open which are fed from a control chamber (5) of the carburetor housing (2). The control chamber (5) is separated by a control membrane (6) from the compensation chamber (7). A compensation channel (11) leads from the compensation chamber (7) into a flow space (9). A connecting piece (8) is led into the flow space (9) as a connection of the intake channel section (3) of the membrane carburetor (1) with the flow space (9). The compensation channel (11) and the connecting piece (8) open into the housing (21) on the clean air side (23). The housing (21) forms the flow space (9). The compensation channel (11) is guided into the housing (21) via a segment (10) in the connecting piece (8) to provide a simpler assembly and constructive configuration of the compensation connection. The opening (15) of the compensation channel (11) defines a first plane (17). The opening (16) of the connecting piece (8) defines a second plane (18). The planes (17, 18) are separated from each other and these planes preferably intersect.
摘要翻译：本发明涉及空气过滤器和膜式化油器（1）的组合。膜化油器（1）具有配置在化油器壳体（2）中的进气通道部分（3），燃料传导通道（4,4'）打开的进气通道部分（3）从化油器壳体（2）的控制室（5）（2）。控制室（5）由补偿室（7）与控制膜（6）分开。补偿通道（11）从补偿室（7）引入流动空间（9）。连接片（8）作为膜化油器（1）的进气通道部分（3）与流动空间（9）的连接被引导到流动空间（9）中。补偿通道（11）和连接件（8）打开到清洁空气侧（23）上的壳体（21）中。壳体（21）形成流动空间（9）。补偿通道（11）通过连接件（8）中的段（10）被引导到壳体（21）中，以提供补偿连接的更简单的组装和构造配置。补偿通道（11）的开口（15）限定第一平面（17）。连接件（8）的开口（16）限定第二平面（18）。平面（17,18）彼此分离，并且这些平面优选相交。

3. 发明授权

US07735465B2 Method for operating an internal combustion engine 有权
标题翻译：操作内燃机的方法
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
IPC分类号： F02B75/02 , 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（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。

4. 发明授权

US07603983B2 Carburetor and method of operating the same 失效
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
CPC分类号： F02M1/02 , F02M1/08 , F02M1/10 , F02M7/12 , F02M17/04
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).

5. 发明授权

US06842979B2 Method of producing a cylinder in a two-cycle engine 有权
标题翻译：在两冲程发动机中制造汽缸的方法
公开(公告)号：US06842979B2
公开(公告)日：2005-01-18
申请号：US10305615
申请日：2002-11-26
申请人： Igor Klaric , Ralf Blechschmidt , Andreas Bähner , Matthias Hehnke , Christian Brüning , Konrad Knaus , Jörg Schlossarczyk , Peter Pretzsch , Rolf Sattelmaier , Jörg Jacubzig
发明人： Igor Klaric , Ralf Blechschmidt , Andreas Bähner , Matthias Hehnke , Christian Brüning , Konrad Knaus , Jörg Schlossarczyk , Peter Pretzsch , Rolf Sattelmaier , Jörg Jacubzig
IPC分类号： F02F1/00 , B23P13/02 , F02B75/02 , F02B77/02 , F02F1/22 , B25P25/00
CPC分类号： B23P13/02 , F02B77/02 , F02B2075/025 , F02F1/22 , Y10T29/4927 , Y10T29/49272 , Y10T29/49982 , Y10T29/49984 , Y10T29/49986 , Y10T29/49995 , Y10T29/49996
摘要： A method is provided for producing a cylinder in a two-cycle engine. The cylinder bore is first machined as a preparation for the provision of a coating. The thereby resulting window edges that surround an inlet window are then at least partially chamfered. The cylinder bore is consequently provided with the coating, which at least partially overlaps the chamfered window edge. There thereby results in the region of the window edge a location of least spacing relative to the axis of the transfer channel. The piston liner or gliding surface is finally machined to a finished dimension such that in the region of the chamfered and coated window edge or corner there is formed a coating edge having a wall spacing relative to the location of least spacing, which such wall spacing having a maximum value of 0.7 mm.
摘要翻译：提供了一种用于在双冲程发动机中制造气缸的方法。首先将气缸孔加工成用于提供涂层的准备。然后围绕入口窗的由此产生的窗口边缘至少部分地被倒角。因此，气缸孔设置有与倒角窗口边缘至少部分重叠的涂层。由此导致窗口边缘的区域相对于传送通道的轴线具有最小间隔的位置。活塞衬套或滑动表面最终被加工成最终尺寸，使得在倒角和涂覆的窗口边缘或角部的区域中形成有相对于最小间隔的位置具有壁间隔的涂层边缘，这样的壁间距具有最大值为0.7 mm。

6. 发明授权

US06830601B2 Carburetor arrangement 有权
公开(公告)号：US06830601B2
公开(公告)日：2004-12-14
申请号：US10642273
申请日：2003-08-18
申请人： Georg Maier , Martin Benholz , Günter Wolf , Philipp Neumann , Andreas Bähner
发明人： Georg Maier , Martin Benholz , Günter Wolf , Philipp Neumann , Andreas Bähner
IPC分类号： F02M1734
CPC分类号： F02M35/10019 , F02B63/02 , F02B2075/025 , F02B2075/027 , F02M33/04 , F02M35/10039 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10262 , Y02T10/146 , Y10S55/28
摘要： The invention relates to a carburetor arrangement for an internal combustion engine (1) which drives a work apparatus. The engine (1) has an intake channel (3) leading through a carburetor (2). The intake channel (3) includes an intake opening (4) on the side of the carburetor (2) facing away from the engine (1). A baffle wall (5) is provided and covers the intake opening (4) at least partially. The baffle wall (5) is mounted transversely to the longitudinal axis (6) of the intake channel (3) at a spacing to the intake opening (4). The baffle wall (5) and the intake opening (4) define a baffle enclosure (7) disposed therebetween. At least a first component part (8) of the baffle wall (5) is inclined with respect to the longitudinal axis (6) of the intake channel (3) in such a manner that fuel droplets (9), which exit from the intake channel (3) and which impinge on the first component part (8) of the baffle wall (5), form a fuel film (10).

7. 发明授权

US07894974B2 Method for operating a two-stroke engine 有权
标题翻译：二冲程发动机的运行方法
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。

8. 发明授权

US07363888B2 Two-stroke engine 有权
标题翻译：二冲程发动机
公开(公告)号：US07363888B2
公开(公告)日：2008-04-29
申请号：US11306868
申请日：2006-01-13
申请人： Axel Klimmek , Silke Kaminski , Werner Geyer , Roland Schmidt , Tommy Roitsch , Ralf Blechsmidt , Andreas Bähner , Olaf Schmidt
发明人： Axel Klimmek , Silke Kaminski , Werner Geyer , Roland Schmidt , Tommy Roitsch , Ralf Blechsmidt , Andreas Bähner , Olaf Schmidt
IPC分类号： F02B33/04 , F02B25/00
CPC分类号： F02B25/22 , F02B25/16
摘要： A two-stroke engine has a cylinder and a piston reciprocating in the cylinder and delimiting a combustion chamber. The piston has at least one piston recess. A crankshaft is rotatably arranged in a crankcase connected to the cylinder. A connecting rod connects piston and crankshaft. Transfer channels connect the crankcase to the combustion chamber in pre-defined piston positions. The transfer channels each have a transfer port opening into the combustion chamber. A device for supplying fuel and an air channel supplying combustion air are provided. In predetermined piston positions, the air channel is connected by the piston recess to the transfer ports. The air channel opens into the cylinder bore opposite the exhaust for the exhaust gases. The air channel, the piston recess, and the transfer channels define an air passage that provides approximately uniform distribution of air from the air channel into the transfer channels.
摘要翻译：二冲程发动机具有在气缸中往复运动的气缸和活塞，并限定燃烧室。活塞具有至少一个活塞凹部。曲轴可旋转地布置在连接到气缸的曲轴箱中。连杆连接活塞和曲轴。传输通道将曲轴箱连接到预定义的活塞位置的燃烧室。输送通道各具有通向燃烧室的输送口。提供了用于供应燃料的装置和供应燃烧空气的空气通道。在预定的活塞位置，空气通道由活塞凹槽连接到输送口。空气通道通向与排气相对的气缸孔，用于废气。空气通道，活塞凹槽和传送通道限定了空气通道，其空气通道从空气通道大致均匀分布到传送通道中。

9. 发明授权

US06932032B2 Two-stroke engine 失效
标题翻译：二冲程发动机
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
IPC分类号： F02B25/20 , F02B33/04 , F02B63/02 , F02B75/02 , F02D9/02 , F02M35/108
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。

10. 发明授权

US06880516B2 Intake system 有权
标题翻译：进气系统
公开(公告)号：US06880516B2
公开(公告)日：2005-04-19
申请号：US10759004
申请日：2004-01-20
申请人： Georg Maier , Fritz Kiesewetter , Andreas Bähner , Ralf Tuckermann , Axel Klimmek
发明人： Georg Maier , Fritz Kiesewetter , Andreas Bähner , Ralf Tuckermann , Axel Klimmek
IPC分类号： F02B63/02 , F02M35/06 , F02B77/00
CPC分类号： F02M35/06 , F02B63/02 , Y10S55/28
摘要： An intake system for preparing combustion air (1) is for an internal combustion engine of a portable handheld work apparatus. The intake system includes: a carburetor (2); an air filter (3) which is connected upstream of the carburetor (2); and, a filter case (4) which closes the air filter (3) from the outside. A combustion air channel (5) leads from a take-up opening (6) in a cooling air fan (7) of the engine to an inlet opening (24) in the filter case (4). The filter case (4) includes at least one defined ventilation opening (8) for connecting an inner space (9) of the filter case (4) to the ambient air. The flow cross section of the ventilation opening (8) is so designed that the airflows through the inlet opening (24), the intake opening (18) of the carburetor (2) and the ventilation opening (8) are compensated at the rated rpm of the engine and that a uniform pressure level adjusts in the inner space (9) of the filter case (4).
摘要翻译：用于制备燃烧空气（1）的进气系统用于便携式手持式工作装置的内燃机。进气系统包括：化油器（2）; 连接在化油器（2）的上游的空气过滤器（3）; 以及从外部关闭空气过滤器（3）的过滤器壳体（4）。燃烧空气通道（5）从发动机的冷却空气风扇（7）中的卷取开口（6）引导到过滤器壳体（4）中的入口开口（24）。过滤器壳体（4）包括用于将过滤器壳体（4）的内部空间（9）与环境空气连接的至少一个限定的通气开口（8）。通风口（8）的流动横截面被设计成使得通过入口（24），化油器（2）的进气口（18）和通风口（8）的气流以额定转速并且在过滤器壳体（4）的内部空间（9）中调整均匀的压力水平。

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