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公开(公告)号：US20110146643A1
公开(公告)日：2011-06-23
申请号：US12968309
申请日：2010-12-15
IPC分类号： F02B33/04
CPC分类号： F02B25/14 , F02B2075/025 , F02F1/004 , F02F1/22 , F02F7/0039 , F02F7/0051
摘要： A two-stroke engine has a cylinder with a combustion chamber and a piston reciprocatingly supported in the cylinder. A crankshaft is rotatably supported in a crankcase and driven by the piston. At least one transfer passage connects the crankcase in at least one position of the piston with the combustion chamber and has a piston-controlled transfer port that opens into the combustion chamber and an opening that opens into the crankcase. A mixture inlet opens into the crankcase. An outlet is provided at the combustion chamber. The transfer port and the opening are displaced relative to each other in a circumferential direction of the cylinder. At least one wall section of the transfer passage forms an undercut when viewed from the crankcase in a direction of a longitudinal cylinder axis of the cylinder and is delimited by a separate component inserted into the cylinder from a side facing the crankcase.
摘要翻译： 二冲程发动机具有带有燃烧室的气缸和往复地支撑在气缸中的活塞。 曲轴可旋转地支撑在曲轴箱中并由活塞驱动。 至少一个传送通道将曲轴箱在活塞的至少一个位置与燃烧室相连接，并且具有通向燃烧室的活塞控制的传送口和通向曲轴箱的开口。 混合物入口通向曲轴箱。 在燃烧室设有出口。 传送口和开口在圆筒的圆周方向上相对于彼此移位。 当从曲轴箱观察时，传送通道的至少一个壁部段在气缸的纵向气缸轴线的方向上形成底切，并且由从面向曲轴箱的一侧插入到气缸中的单独部件限定。
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公开(公告)号：US5522143A
公开(公告)日：1996-06-04
申请号：US338874
申请日：1994-11-14
CPC分类号： B27B17/14
摘要： The invention is directed to a tensioning arrangement for saw chains of motor-driven chain saws which include a device for longitudinally displacing the guide bar. The clamped guide bar is released so that the adjusting arrangement can be actuated for the longitudinal displacement of the guide bar. By rotating a disc having a spiral slot, a slide piece, which is coupled to the guide bar, is displaced in the longitudinal direction. Assembly is simplified and handling facilitated when the tension in the saw chain is adjusted. This is achieved by making the slide piece on the spiral disc so that it is not released therefrom but instead is held so as to be rotationally and longitudinally displaceable. The slide piece is fixedly connected to the guide bar by using appropriate attachment devices.
摘要翻译： 本发明涉及一种用于电动链锯的锯链的张紧装置，其包括用于纵向移位导向杆的装置。 夹紧的导杆被释放，使得调节装置可以被致动以引导杆的纵向位移。 通过旋转具有螺旋槽的盘，联接到导杆的滑动件在纵向方向上移位。 当锯链中的张力被调整时，装配被简化和处理。 这是通过将滑动片制成螺旋盘而使其不被释放而是被保持为可旋转和纵向移位的。 滑块通过使用适当的附接装置固定地连接到导杆。
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公开(公告)号：US5491899A
公开(公告)日：1996-02-20
申请号：US296153
申请日：1994-08-29
IPC分类号： B27B17/14
CPC分类号： B27B17/14 , Y10T83/7239
摘要： The invention is directed to a tensioning arrangement for a saw chain of a motor-driven chain saw. The saw chain runs on a guide bar mounted on the motor housing of the chain saw. The tensioning arrangement includes a rotatable disc having a spirally-shaped guide slot in which a lug of a slide piece engages. The longitudinal displacement of the guide bar is provided by rotating the disc. The guide slot in the disc extends over a rotational angle of at least 270.degree.. A still lesser slope of the guide slot is provided with a rotational angle in the range of 360.degree. to 450.degree.. The tensioning arrangement is especially suitable for adjusting the guide bar in motor-driven chain saws thereby adjusting the tension in the saw chain.
摘要翻译： 本发明涉及一种用于电动链锯锯锯的张紧装置。 锯链在安装在链锯的马达壳体上的导杆上运行。 张紧装置包括具有螺旋状导向槽的可旋转盘，其中滑块的凸耳接合在其中。 通过旋转盘来提供导杆的纵向位移。 盘中的引导槽在至少270°的旋转角度上延伸。 引导槽的较小的斜面设置有360°至450°范围内的旋转角度。 张紧装置特别适用于调整电动链锯中的导杆，从而调节锯链中的张力。
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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。
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公开(公告)号：US20100229405A1
公开(公告)日：2010-09-16
申请号：US12659500
申请日：2010-03-11
IPC分类号： B27B17/00
摘要： A chain guard for a motor-driven chain saw has a narrow casing with a front end and a back end. The casing has two parallel side walls and an upper wall and a lower wall connecting the side walls to each other. The casing is closed at the front end thereof and defines an opening at the back end. A device is provided on the casing for attaching the chain guard to the clothing of the operator, a rope, a carabiner or the like.
摘要翻译： 用于电动链锯的链条防护罩具有带有前端和后端的狭窄外壳。 壳体具有两个平行的侧壁和连接侧壁彼此的上壁和下壁。 外壳在其前端封闭并在后端形成开口。 在壳体上设有一个装置，用于将链条防护件连接到操作者的衣服，绳索，卡扣等。
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6.发明授权
公开(公告)号：US5582143A
公开(公告)日：1996-12-10
申请号：US389170
申请日：1995-02-15
CPC分类号： F02N19/004 , F01L13/08 , F02D11/02 , F02N3/02
摘要： An actuating device for a decompression valve of an internal combustion engine with a cable starter, wherein the decompression valve is positioned within the cylinder of the internal combustion engine and comprises a valve member biased into its closed position, has a transmission lever having a longitudinal extension and being rotatable about its longitudinal axis. The transmission lever has a first and a second end. A cable drum for receiving the starter cable of the cable starter is provided. The cable drum has an axis of rotation about which the cable drum is rotated when the starter cable is pulled. The longitudinal axis of the transmission lever is perpendicular to the axis of rotation of the cable drum and spaced from the rotational plane of the cable drum. The cable drum entrains the first end of the transmission lever in the direction of rotation and thereby rotates the transmission lever about its longitudinal axis such that the second end of the transmission lever performs an adjusting movement for moving the decompression valve from the closed position into the open position.
摘要翻译： 一种用于具有电缆起动器的内燃机的减压阀的致动装置，其中所述减压阀定位在所述内燃机的气缸内并且包括偏压到其关闭位置的阀构件，所述阀构件具有传动杆，所述传动杆具有纵向延伸部 并且可围绕其纵向轴线旋转。 传动杆具有第一和第二端。 提供了用于接收电缆起动器的起动电缆的电缆卷筒。 当拉动起动器电缆时，电缆卷筒具有旋转轴线，电缆卷筒在该轴线周围旋转。 传动杆的纵向轴线垂直于电缆卷筒的旋转轴线并与电缆卷筒的旋转平面隔开。 电缆鼓沿着旋转方向夹带传动杆的第一端，从而使传动杆围绕其纵向轴线旋转，使得传动杆的第二端执行调节运动，以将减压阀从关闭位置移动到 开仓
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公开(公告)号：US20090294210A1
公开(公告)日：2009-12-03
申请号：US12453917
申请日：2009-05-27
IPC分类号： F01N7/00
CPC分类号： F01N13/1838 , F01N13/185 , F01N13/1855 , F01N13/1872 , F01N2590/06
摘要： An exhaust-gas muffler (1) has a housing (2) through which at least one sleeve (11) projects. At one end, the sleeve (11) has an attachment opening (10) and at the opposite-lying end has an access opening (14). To avoid a contamination of the sleeve (11) during operation, a plug (15, 25, 35, 40, 45, 55) of a pressed metal wire is arranged in the access opening (14).
摘要翻译： 排气消声器（1）具有壳体（2），至少一个套筒（11）穿过该壳体突出。 在一端，套筒（11）具有附接开口（10），并且在相对的端部具有进入开口（14）。 为了避免在操作期间套筒（11）的污染，压入的金属丝的插头（15,25,35,40,45,55）布置在进入开口（14）中。
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公开(公告)号：US20070022614A1
公开(公告)日：2007-02-01
申请号：US11487381
申请日：2006-07-17
IPC分类号： B26B29/02
CPC分类号： A01D34/828 , A01D34/4167 , A01D34/90
摘要： A protective shield (2) is provided for a free-cutting tool (1). The free-cutting tool has a cutterhead (4) rotatable about a rotational axis (3) and carries a cutting filament (5). For a rotating cutterhead (4), the cutting filament (5) rotates in a rotational direction (10), aligns itself approximately radially to the rotational axis (3) and defines a cutting circle (6) having a constructively pregiven nominal radius (R). The cutting radius (6) is at least partially covered by the protective shield (2). A cut-to-length knife (7) having a cutting edge (8) for cutting the cutting filament (5) to length is mounted on the protective shield (2) in the peripheral region thereof. The cut-to-length knife (7) is mounted on the protective shield (2) to be moveable back and forth between a cutting position (11) and a rest position (12). The cutting edge (8) lies in the plane of the cutting circle (6) in the cutting position (11) and has the nominal radius (R) to the rotational axis (3) and, in the rest position (12), the cutting edge (8) lies outside of the cutting circle (6).
摘要翻译： 为自由切削工具（1）提供防护罩（2）。 自由切割工具具有可围绕旋转轴线（3）旋转并且承载切割细丝（5）的刀架（4）。 对于旋转的刀架（4），切割细丝（5）沿旋转方向（10）旋转，其自身大致径向对齐于旋转轴线（3）并且限定具有建设性预制的标称半径（R ）。 切割半径（6）至少部分地被保护罩（2）覆盖。 具有用于将切割细丝（5）切割成长度的切割刃（8）的切割刀（7）安装在其周边区域中的防护罩（2）上。 切割刀（7）安装在防护罩（2）上，以在切割位置（11）和静止位置（12）之间来回移动。 切割刃（8）位于切割位置（11）中的切割圆（6）的平面中，并且具有到旋转轴线（3）的标称半径（R），并且在静止位置（12）中 切割刃（8）位于切割圆（6）的外侧。
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公开(公告)号：US06959701B2
公开(公告)日：2005-11-01
申请号：US10396813
申请日：2003-03-26
申请人： Helmut Zimmermann , Michael Joos , Andreas Radtke , Stefan Leuze
发明人： Helmut Zimmermann , Michael Joos , Andreas Radtke , Stefan Leuze
CPC分类号： F02M35/10078 , F02B63/02 , F02B2075/025 , F02M35/10118 , F02M35/10137 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10301 , F02M35/10321 , F05C2225/08
摘要： A connecting piece (1) between a carburetor (4) and an inlet channel (3) is disposed in an internal combustion engine (2) of a portable handheld motor-driven work apparatus such as a motor-driven chain saw, cutoff machine, et cetera. The connecting piece (1) serves to compensate for relative position changes between the engine (2) and the carburetor (4). The connecting piece (1) is made of elastic material and has an expansion fold (5) which functions to compensate for length changes. The length of the connecting piece can be changed from a pressed length (a) to an expanded length (b). The expansion fold (5) partitions the connecting piece (1) into a carburetor-end section (6) and into an engine-end section (7). The carburetor-end section (6) includes a circularly-shaped flow cross section and the engine-end section (7) includes a circularly-shaped flow cross section at the side facing toward the expansion fold (5) and has a flow cross section which departs from the circular shape at the end facing toward the engine. The connecting piece (1) includes on the inner side grooves (24) which run in the longitudinal direction.
摘要翻译： 在化油器（4）和入口通道（3）之间的连接件（1）设置在诸如电动链锯，切断机器的便携式手持式电动工作装置的内燃机（2）中， 等等。 连接件（1）用于补偿发动机（2）和化油器（4）之间的相对位置变化。 连接件（1）由弹性材料制成并且具有用于补偿长度变化的膨胀折叠（5）。 连接件的长度可以从按压长度（a）变为扩展长度（b）。 膨胀折叠部（5）将连接件（1）分隔成化油器端部（6）并进入发动机端部（7）。 化油器端部（6）包括圆形流动横截面，发动机端部（7）在朝向膨胀折叠（5）的一侧包括圆形流动横截面，并且具有流动横截面 它在面向发动机的端部处脱离圆形。 连接件（1）包括在纵向方向上延伸的内侧槽（24）。
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公开(公告)号：US06868813B2
公开(公告)日：2005-03-22
申请号：US10396421
申请日：2003-03-26
申请人： Helmut Zimmermann , Michael Joos , Andreas Radtke , Stefan Leuze
发明人： Helmut Zimmermann , Michael Joos , Andreas Radtke , Stefan Leuze
CPC分类号： F02M35/10078 , F02B63/02 , F02B2075/025 , F02M29/14 , F02M35/10118 , F02M35/10137 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10281 , F02M35/10301 , F02M35/10321 , F05C2225/08
摘要： An elastic connecting piece (1) is mounted between a carburetor (4) and an inlet channel (3) of an internal combustion engine (2). The engine (2) is especially an engine of a portable handheld motor-driven work apparatus such as a motor-driven chain saw, cutoff machine or the like. The connecting piece (1) includes a peripherally extending expansion fold (5) arranged between its ends in order to compensate for changes in length. The expansion fold (5) subdivides the connecting piece (1) into a carburetor-end section (6) and into an engine-end section (7). The annular gap (28) of the expansion fold (5) can be bridged by a seal lip (8). The connecting piece (1) includes a peripherally extending seal seat (9) of axial length (g) in the region of the expansion fold (5). The seal lip (8) can be placed in seal-tight contact with the seal seat (9) and substantially closes the expansion fold (5) fluid tight to the interior space of the connecting piece (1).
摘要翻译： 弹性连接件（1）安装在化油器（4）和内燃机（2）的入口通道（3）之间。 发动机（2）特别是诸如电动链锯，切断机等的便携式手持式电动工作装置的发动机。 连接件（1）包括布置在其端部之间的周向延伸的膨胀折叠（5），以补偿长度的变化。 膨胀折叠部（5）将连接件（1）细分成化油器端部（6）并进入发动机端部（7）。 膨胀折叠（5）的环形间隙（28）可以通过密封唇缘（8）桥接。 连接件（1）包括在膨胀折叠（5）的区域中具有轴向长度（g）的周向延伸的密封座（9）。 密封唇缘（8）可以与密封座（9）密封地接触并且基本上封闭流体紧密地连接到连接件（1）的内部空间的膨胀折叠（5）。
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