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

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).

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。

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。

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

IPC分类号： F02B25/20 ,  F02B33/04 ,  F02B63/02 ,  F02B75/02 ,  F02D9/02 ,  F02M35/108 ,  F02M1/00

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).

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。

公开(公告)号：US20060225677A1

公开(公告)日：2006-10-12

申请号：US11306868

申请日：2006-01-13

申请人： Axel Klimmek ,  Silke Kaminski ,  Werner Geyer ,  Roland Schmidt ,  Tommy Roitsch ,  Ralf Blechschmidt ,  Andreas Bahner ,  Olaf Schmidt

发明人： Axel Klimmek ,  Silke Kaminski ,  Werner Geyer ,  Roland Schmidt ,  Tommy Roitsch ,  Ralf Blechschmidt ,  Andreas Bahner ,  Olaf Schmidt

IPC分类号： F02B33/04

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并限定燃烧室的气缸和活塞。 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。

公开(公告)号：US20060162550A1

公开(公告)日：2006-07-27

申请号：US11336526

申请日：2006-01-20

申请人： Helmut Schlessmann ,  Tobias Wurster ,  Andreas Bahner ,  Ralf-Rainer Kemmler

发明人： Helmut Schlessmann ,  Tobias Wurster ,  Andreas Bahner ,  Ralf-Rainer Kemmler

IPC分类号： F16J1/14

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。