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1. 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。

2. 发明申请

US20050098124A1 Two-stroke engine 失效
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).

3. 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。

4. 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。

5. 发明授权

US06314922B1 Hand-held working tool 失效
标题翻译：手持式工具
公开(公告)号：US06314922B1
公开(公告)日：2001-11-13
申请号：US09360107
申请日：1999-07-23
申请人： Helmut Zimmermann , Werner Geyer , Jörg Schlossarczyk , Hans Nickel , Harald Schliemann , Gunter Stein , Peter Stücke , Bernhard Dürr , Axel Klimmek
发明人： Helmut Zimmermann , Werner Geyer , Jörg Schlossarczyk , Hans Nickel , Harald Schliemann , Gunter Stein , Peter Stücke , Bernhard Dürr , Axel Klimmek
IPC分类号： F01P704
CPC分类号： F02M35/1017 , B25F5/008 , B27B17/00 , F02B63/02 , F02B2075/025 , F02M35/10013 , F02M35/10262 , Y02T10/146
摘要： A hand-held working tool has a housing and an internal combustion engine arranged in the housing and comprising a crankshaft and an air filter. A tool is driven by the crankshaft of the internal combustion engine. A fan housing is attached to the engine housing and has an air inlet. A fan wheel is arranged in the fan housing and is driven by the crankshaft of the internal combustion engine to supply cooling air, sucked in through the air inlet, to the internal combustion engine. The fan housing has a bottom extending radially to the crankshaft. The bottom and a side of the fan wheel facing the bottom define a chamber in the fan housing. The bottom has a combustion air outlet. A combustion air channel is connected to the combustion air outlet and to the air filter. The combustion air outlet is axially supplying combustion air from the chamber through the combustion air channel into the air filter of internal combustion engine. The fan housing has a channel wall having a bottom portion connected to the face of the bottom remote from the fan wheel and covering the bottom partially to form a double-walled bottom. The end face portion of the combustion air channel is defined by the bottom and the bottom portion of the channel wall. In an alternative embodiment the combustion air channel is provided in a hollow beam of a support that supports the drive unit of the working tool.
摘要翻译：一种手持式工具具有壳体和布置在壳体中的内燃机，包括曲轴和空气过滤器。工具由内燃机的曲轴驱动。风扇壳体附接到发动机壳体并具有进气口。风扇轴设置在风扇壳体中，并由内燃机的曲轴驱动，以将通过空气入口吸入的冷却空气供给到内燃机。风扇壳体具有径向延伸到曲轴的底部。风扇轮的底部和面向底部的一侧限定了风扇壳体中的室。底部有一个燃烧空气出口。燃烧空气通道连接到燃烧空气出口和空气过滤器。燃烧空气出口轴向地将来自腔室的燃烧空气通过燃烧空气通道供应到内燃机的空气过滤器中。风扇壳体具有通道壁，该通道壁的底部连接到远离风扇叶的底部的表面，并部分地覆盖底部以形成双壁底部。燃烧空气通道的端面部分由通道壁的底部和底部限定。在替代实施例中，燃烧空气通道设置在支撑工作工具的驱动单元的支撑件的中空梁中。

6. 发明授权

US06267088B1 Two-stroke engine having an air scavenged transfer channel 有权
标题翻译：具有空气清扫传输通道的二冲程发动机
公开(公告)号：US06267088B1
公开(公告)日：2001-07-31
申请号：US09644714
申请日：2000-08-24
申请人： Heiko Rosskamp , Axel Klimmek , Lars Bergmann
发明人： Heiko Rosskamp , Axel Klimmek , Lars Bergmann
IPC分类号： F02B2522
CPC分类号： F02B63/02 , F02B25/14 , F02B25/20 , F02B33/04 , F02B33/30 , F02B33/44 , F02B2075/025 , F02F1/22
摘要： The invention relates to a two-stroke engine which operates as a drive motor in a portable work apparatus such as a motor-driven chain saw. The two-stroke engine has a combustion chamber (3) which is formed in a cylinder (2) and is delimited by a piston (5) which moves up and down in the cylinder. The piston drives via a connecting rod (6) a crankshaft (7) which rotates in a crankcase (4). The crankcase (4) is connected to the combustion chamber (3) via a transfer channel (14). A first end (20) of the transfer channel (14) opens via an entry window (12) into the combustion chamber (3) and the second end (19) of the transfer channel (14) opens into the crankcase (4). The entry window (12) lies in the cylinder wall (16) and is controlled by the piston (5). The transfer channel (14) is connected to a gas channel (22) between its ends (19, 20). An essentially fuel-free gas flow (40) flows via a check valve (21) from the gas channel (22) and flows into the transfer channel (14). The mixture, which is necessary for operating the two-stroke engine (1), is drawn from a membrane carburetor (8) into the crankcase (4) via an inlet (11). The flow element (23, 33, 45) is mounted in the flow path of the gas flow (40) which exits from the gas channel (22) into the transfer channel (14). A flow element fans out the gas flow (40). In this way, a complete scavenging of the transfer channel is ensured during the induction stroke.
摘要翻译：本发明涉及一种在诸如电动链锯等便携式工作装置中作为驱动电动机工作的二冲程发动机。二冲程发动机具有燃烧室（3），其形成在气缸（2）中并且由在气缸中上下移动的活塞（5）限定。活塞通过连杆（6）驱动在曲轴箱（4）中旋转的曲轴（7）。曲轴箱（4）通过传送通道（14）连接到燃烧室（3）。传送通道（14）的第一端（20）通过进入窗口（12）进入燃烧室（3）并且传送通道（14）的第二端（19）通向曲轴箱（4）。进入窗口（12）位于气缸壁（16）中，并由活塞（5）控制。传送通道（14）在其端部（19,20）之间连接到气体通道（22）。基本上无燃料的气流（40）经由止回阀（21）从气体通道（22）流动并流入输送通道（14）。用于操作二冲程发动机（1）所需的混合物经由入口（11）从薄膜化油器（8）吸入曲轴箱（4）。流动元件（23,33,45）安装在从气体通道（22）离开输送通道（14）的气流（40）的流动路径中。流动元件扇出气流（40）。以这种方式，在感应冲程期间确保了传输通道的完全清除。

7. 发明申请

US20060225677A1 Two-Stroke Engine 有权
标题翻译：双冲程发动机
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。

8. 发明授权

US06513466B2 Two-stroke engine 失效
公开(公告)号：US06513466B2
公开(公告)日：2003-02-04
申请号：US09884017
申请日：2001-06-20
申请人： Edgar Bignion , Matthias Mugele , Jan Tribulowski , Axel Klimmek
发明人： Edgar Bignion , Matthias Mugele , Jan Tribulowski , Axel Klimmek
IPC分类号： F02B3304
CPC分类号： F02B25/22 , F02B33/04 , F02B33/30 , F02B63/02 , F02B2075/025 , F02M23/00 , Y02T10/146
摘要： The invention relates to a two-stroke engine in the form of a drive motor in a motor-driven chain saw or like portable handheld work apparatus. A combustion chamber (4) is provided in a cylinder (2) of the engine and is delimited by a piston (1). The piston (1) drives a crankshaft (6) via a connecting rod (5) and the crankshaft (6) includes a crankweb (7). The combustion chamber (4) is connected via an outlet to an exhaust-gas muffler. A fresh mixture is supplied to the combustion chamber (4) from the crankcase (3) via a transfer channel (10). The entry of the fresh mixture takes place via the crankcase (3). Also, an air channel (21) is provided for supplying fuel-free air. To reduce the scavenging losses, the air channel (21) is connected via a storage space (20) to the crankcase (3). The transfer channel (10) is either connected directly via a valve (23) to the crankcase or indirectly via the storage space (20).

9. 发明授权

US06415750B2 Two-stroke engine 有权
标题翻译：二冲程发动机
公开(公告)号：US06415750B2
公开(公告)日：2002-07-09
申请号：US09795390
申请日：2001-03-01
申请人： Heiko Rosskamp , Axel Klimmek , Peter Linsbauer , Lars Bergmann
发明人： Heiko Rosskamp , Axel Klimmek , Peter Linsbauer , Lars Bergmann
IPC分类号： F02B2520
CPC分类号： F02B33/44 , F02B25/22 , F02B33/04 , F02B33/446 , F02B63/02 , F02B2075/025 , F02M23/03 , Y02T10/146
摘要： A two-stroke engine for a portable two-stroke engine in a portable handheld work apparatus includes a combustion chamber (3) formed in a cylinder (2). The combustion chamber (3) is delimited by the piston (5) which drives the crankshaft (7) via a connecting rod (6). The two-stroke engine includes several transfer channels (14), which, referred to a symmetry plane (49), lie on opposite sides (47, 48) with the plane partitioning approximately the outlet (10). The transfer channels (14) connect the crankcase (4) to the combustion chamber (3). A first end (20) of each transfer channel (14) opens via an entry window (12, 15) into the combustion chamber (3) and the second end (19) of each transfer channel opens to the crankcase (4). Each transfer channel (14) is connected, between its ends (19, 20), to an air channel (22a, 22b) via a membrane valve (21). Air is supplied by the air channel (22a, 22b) via an adjustable throttle (31, 32).
摘要翻译：用于便携式手持式工作装置中的便携式二冲程发动机的二冲程发动机包括形成在气缸（2）中的燃烧室（3）。燃烧室（3）由经由连杆（6）驱动曲轴（7）的活塞（5）限定。二冲程发动机包括几个传递通道（14），其被称为对称平面（49），位于相对侧（47,48）上，其中平面大致分开出口（10）。传送通道（14）将曲轴箱（4）连接到燃烧室（3）。每个传送通道（14）的第一端（20）经由进入窗口（12,15）进入燃烧室（3）并且每个传送通道的第二端（19）通向曲轴箱（4）。每个传送通道（14）通过膜阀（21）在其端部（19,20）之间连接到空气通道（22a，22b）。空气通过空气通道（22a，22b）经由可调节的节流阀（31,32）供应。

10. 发明授权

US07032709B2 Exhaust-gas muffler 失效
标题翻译：废气消声器
公开(公告)号：US07032709B2
公开(公告)日：2006-04-25
申请号：US10648212
申请日：2003-08-27
申请人： Florian Hoche , Axel Klimmek
发明人： Florian Hoche , Axel Klimmek
IPC分类号： F01N1/08
CPC分类号： F01N13/1877 , F01N1/02 , F01N13/1833 , F01N13/1888 , F01N2590/06
摘要： An exhaust-gas muffler includes a muffler housing (2) having an inlet opening (3) and an outlet (4). The exhaust-gas muffler is especially for the internal combustion engine in a portable handheld work apparatus. At least one attenuating space (5, 5′, 5″) is configured in the exhaust-gas muffler (1). The exhaust-gas muffler (1) includes at least one resonance pipe (6) to increase power and to reduce the hydrocarbon emissions. The resonance pipe (6) is fluidly connected to the inlet opening (3) and the resonance pipe leads to a backflow of exhaust gases into the combustion chamber (22). For a simple manufacture, it is provided that the exhaust-gas muffler (1) includes lower and upper half shells (8, 7) via which the resonance pipe (6) is at least partially delimited.
摘要翻译：排气消声器包括具有入口（3）和出口（4）的消声器壳体（2）。废气消声器特别适用于便携式手持式工作装置中的内燃机。至少一个衰减空间（5,5'，5“）配置在排气消声器（1）中。排气消声器（1）包括至少一个共振管（6），以增加功率并减少碳氢化合物排放。共振管（6）流体地连接到入口（3），并且共振管导致废气进入燃烧室（22）的回流。对于简单的制造，排气消声器（1）包括下半壳和上半壳（8,7），谐振管（6）至少部分地被界定。

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