公开(公告)号：US06666187B2

公开(公告)日：2003-12-23

申请号：US10034170

申请日：2001-12-27

申请人： Göran Dahlberg ,  Bo Sandström ,  Mats Axelsson ,  Marcus Kragner

发明人： Göran Dahlberg ,  Bo Sandström ,  Mats Axelsson ,  Marcus Kragner

IPC分类号： F02D1102

CPC分类号： F02D11/02 ,  Y10T74/2042

摘要： The invention relates to a device for adjustably limiting the maximum speed of an engine powered hand tool controlled by a power-regulating device (11) located in the handle of the tool. The device makes it possible to optimise the speed of the engine for the job that is to be done. The device consists of a threaded shaft (15) that is moved by rotating a nut (12) and a spring (14). When a higher speed than the selected level is required, is it possible to increase the speed to the maximum speed available by pressing the power-regulating device (11) with a force that exceeds the force from the spring (14).

公开(公告)号：US07159691B2

公开(公告)日：2007-01-09

申请号：US10141302

申请日：2002-05-08

申请人： Göran Dahlberg ,  Gustaf Döragrip ,  Peter Gunnarsson ,  Marcus Kragner ,  Anna Sjögren ,  Esbjörn Ollas

发明人： Göran Dahlberg ,  Gustaf Döragrip ,  Peter Gunnarsson ,  Marcus Kragner ,  Anna Sjögren ,  Esbjörn Ollas

IPC分类号： A47B81/06

CPC分类号： A01G20/43

摘要： Conventional leaf blowers have a supporting frame to where the different components are attached. In order to reduce the noise from the tool and protect some of the components are they provided with covers. This makes the tool heavy and complicated for the operator to use. The claimed invention is a covering casing (10) that also is the supporting structure for the different components in the tool. The casing reduces the amount of noise spread from the tool and protects the components inside the casing (10).

摘要翻译： 常规的叶片鼓风机具有支撑框架，其中不同的部件被附接到那里。 为了减少工具的噪音，并保护部分组件是带盖的。 这使得操作者使用工具变得复杂和复杂。 所要求保护的发明是覆盖壳体（10），其也是用于工具中的不同部件的支撑结构。 壳体减少了从工具传播的噪音量并保护了壳体（10）内部的部件。

公开(公告)号：US07185393B2

公开(公告)日：2007-03-06

申请号：US10139404

申请日：2002-05-06

申请人： Göran Dahlberg ,  Gustaf Döragrip ,  Peter Gunnarsson ,  Marcus Kragner ,  Anna Sjögren ,  Esbjörn Ollas

发明人： Göran Dahlberg ,  Gustaf Döragrip ,  Peter Gunnarsson ,  Marcus Kragner ,  Anna Sjögren ,  Esbjörn Ollas

IPC分类号： A47L5/36

CPC分类号： A01G20/43

摘要： Leaf blower that is carried on the back of the operator comprising at least an engine (14) and a fan. The fan is provided with an air inlet (13) placed on the side of the fan that is facing away from the back of the operator. The air stream is passing the engine (14) on its way to the air inlet (13) so that the engine (14) is cooled.

摘要翻译： 承载在操作者的后部的叶片鼓风机至少包括发动机（14）和风扇。 风扇设有一个放置在风扇侧面的空气入口（13），该风扇面向操作者的背面。 空气流正在通过发动机（14）到达进气口（13），使得发动机（14）被冷却。

公开(公告)号：US07025021B1

公开(公告)日：2006-04-11

申请号：US09483478

申请日：2000-05-30

申请人： Lars Andersson ,  Göran Dahlberg ,  Bo Jonsson ,  Hans Ström

发明人： Lars Andersson ,  Göran Dahlberg ,  Bo Jonsson ,  Hans Ström

IPC分类号： F02B33/00

CPC分类号： F02F1/22 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02F3/24

摘要： Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air inlet is equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburettor throttle control. The air inlet extends via at least one connecting duct (6, 6′) to at least one connecting port (7, 7′) in the engine's cylinder wall (12). The connecting port (7, 7′) is arranged so that it in connection with piston positions at the top dead center is connected with flow paths (9, 9′) embodied in the piston (13), which extend to the upper part of a number of transfer ducts (3, 3′), and the flow paths in the piston are so arranged that the recess (10, 10′; 11, 11′) in the piston that meets the respective transfer duct's port (31, 31′) is so arranged that the air supply is given an essentially equally long or longer period, counted as crank angle or time, in relation to the fuel and air mixture inlet period.

摘要翻译： 曲轴箱清扫二冲程内燃机（1），其中活塞端口空气通道布置在空气入口（2）和多个输送管道（3,3'）的上部之间。 空气入口配备有由至少一个发动机参数控制的限制阀（4），例如化油器节气门控制。 空气入口经由至少一个连接管道（6,6'）延伸到发动机气缸壁（12）中的至少一个连接端口（7,7'）。 连接端口（7,7'）被布置成使得其与上止点处的活塞位置相连接，该流动通道（9,9'）具有在活塞（13）中的流动路径（9,9'），其延伸到 多个输送管道（3,3'）和活塞中的流动路径被布置成使得活塞中的凹部（10,10'; 11,11'）与相应的传送管道的端口（31,31 '）被布置成使得空气供应相对于燃料和空气混合物入口周期被给予基本上等长或更长的时间段（以曲柄角或时间计）。

公开(公告)号：US06213066B1

公开(公告)日：2001-04-10

申请号：US09155813

申请日：1999-03-15

申请人： Göran Dahlberg ,  Magnus Fröjd ,  Niels Hartz ,  Ulf Näslund

发明人： Göran Dahlberg ,  Magnus Fröjd ,  Niels Hartz ,  Ulf Näslund

IPC分类号： F02B3304

CPC分类号： F02M35/10281 ,  F02B63/02 ,  F02B2075/025 ,  F02B2075/027 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/10268

摘要： A drive unit (1) for a handheld working tool, such as a chain saw, trimmer or hedge trimmer, essentially comprising a housing part (2) with a fuel tank (3) and an engine unit (4) with a fuel supply unit (5) such as a carburetor (5), a muffler (6), and a crankcase scavenged combustion engine (7) with a cylinder (8), piston (15) and crankshaft. The engine (7) has at least one inlet port (9) located in the cylinder wall (10) of the engine and/or an adjacent part of the engine crankcase (11), and the engine's inlet duct (13) from the inlet port (9) up to the fuel supply unit (5) has a length longer than 1.8 times the engine cylinder stroke (18), preferably longer than 2.0 times the cylinder stroke (18).

摘要翻译： 一种用于诸如链锯，修剪器或树篱修剪器的手持式工作工具的驱动单元（1），其基本上包括具有燃料箱（3）的壳体部分（2）和具有燃料供应单元 （5），消声器（6）和具有气缸（8），活塞（15）和曲轴的曲轴箱清扫内燃机（7）。 发动机（7）具有位于发动机的气缸壁（10）和/或发动机曲轴箱（11）的相邻部分中的至少一个入口端口（9）和来自入口的发动机入口管道（13） 端口（9）直到燃料供应单元（5）具有长于发动机气缸行程（18）的1.8倍的长度，优选地大于气缸行程（18）的2.0倍。

公开(公告)号：US07611131B2

公开(公告)日：2009-11-03

申请号：US12098444

申请日：2008-04-06

申请人： Thomas Engman ,  Carl-Johan Arnesson ,  Göran Dahlberg ,  Gustaf Döragrip ,  Kenth Gustavsson ,  Mats Gustavsson

发明人： Thomas Engman ,  Carl-Johan Arnesson ,  Göran Dahlberg ,  Gustaf Döragrip ,  Kenth Gustavsson ,  Mats Gustavsson

IPC分类号： F02M1/02

CPC分类号： F02M1/02 ,  F02D9/02 ,  F02D11/02 ,  F02D2009/0208 ,  F02D2009/0216 ,  F02M1/10

摘要： The present invention relates to a carburetor of an internal combustion engine having a manually activated start position. The carburetor includes at least a choke valve and a throttle valve both located in the carburetor's main air passage which are able to move between an open and a closed position, each valve having at least one respective lever that cooperates during the manual activation to give at least one start position of the choke and throttle valves. The carburetor further usually includes at least one thermally responsive member arranged to affect the start position. Further a handle is arranged to provide a two stage draw—lift motion to attain the start position.

摘要翻译： 本发明涉及具有手动起动位置的内燃机的化油器。 化油器至少包括位于化油器主空气通道中的节流阀和节流阀，其能够在打开和关闭位置之间移动，每个阀具有至少一个相应的杠杆，其在手动激活期间协作以给出 扼流器和节流阀至少有一个起始位置。 化油器进一步通常包括布置成影响起始位置的至少一个热响应构件。 此外，手柄被布置成提供两级拉伸提升运动以获得起始位置。

公开(公告)号：US07574984B2

公开(公告)日：2009-08-18

申请号：US10908698

申请日：2005-05-23

申请人： Lars Andersson ,  Göran Dahlberg ,  Bo Jonsson ,  Hans Ström

发明人： Lars Andersson ,  Göran Dahlberg ,  Bo Jonsson ,  Hans Ström

IPC分类号： F02B33/00

CPC分类号： F02F1/22 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02F3/24

摘要： A crankcase scavenged two-stroke internal combustion engine (1) in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air inlet is equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6′) to at least one connecting port (7, 7′) in the engine's cylinder wall (12). The connecting port (7, 7′) is arranged so that when the piston is in a top dead center configuration, it is connected with flow paths (9, 9′) embodied in the piston (13). The flow paths (9, 9′) extend to the upper part of a number of transfer ducts (3, 3′), and the flow paths in the piston are arranged so that the recess (10, 10′; 11, 11′) in the piston that meets the respective transfer duct's port (31, 31′) in a manner that the air supply is given an essentially equally long period, counted as crank angle or time, in relation to the fuel and air mixture inlet period.

摘要翻译： 一种曲轴箱清扫的二冲程内燃机（1），其中在空气入口（2）和多个输送管道（3,3'）的上部之间布置有活塞端口空气通道。 空气入口配有限制阀（4），由至少一个发动机参数控制，例如化油器节气门控制。 空气入口经由至少一个连接管道（6,6'）延伸到发动机气缸壁（12）中的至少一个连接端口（7,7'）。 连接端口（7,7'）被布置成使得当活塞处于上止点构型时，其连接有实施在活塞（13）中的流动路径（9,9'）。 流动路径（9,9'）延伸到多个传送管道（3,3'）的上部，并且活塞中的流动路径被布置成使得凹部（10,10'; 11,11' ）在空气供应相对于燃料和空气混合物入口周期计算为曲柄角或时间的方式基本相当长的时间段内与活塞相接触的活塞中。

公开(公告)号：US08702561B2

公开(公告)日：2014-04-22

申请号：US12528218

申请日：2008-02-21

申请人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Gustaf Döragrip

发明人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Gustaf Döragrip

IPC分类号： F16H61/662

CPC分类号： B27B5/38 ,  F16D49/18 ,  F16D2121/14

摘要： The present invention is related to a retarding device for a hand held cutting machine having a housing (1) and a drive engine, which drives a transmission including a number of transmission members (3′, 2) and driving a rotational or semi rotational cutting tool. The retarding device includes brake means (12, 17) arranged to be in close relation with the transmission and for actuating a retarding force on a transmission member (2), the brake means being arranged to automatically put a retarding force on said transmission member when the speed of rotation or the torque of rotation of said transmission member falls below a predetermined value.

摘要翻译： 本发明涉及一种具有壳体（1）和驱动发动机的手持式切割机的延迟装置，其驱动包括多个传动部件（3'，2）的传动装置，并且驱动旋转或半旋转切割 工具。 减速装置包括布置成与变速器紧密相关并且用于致动传动构件（2）上的阻力的制动装置（12,17），该制动装置被布置成当所述制动装置自动地在所述传动构件上施加阻力， 所述传动构件的旋转速度或转动转矩低于预定值。

公开(公告)号：US20100140025A1

公开(公告)日：2010-06-10

申请号：US12528218

申请日：2008-02-21

申请人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Göran Doragrip

发明人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Göran Doragrip

IPC分类号： F16D63/00

CPC分类号： B27B5/38 ,  F16D49/18 ,  F16D2121/14

摘要： The present invention is related to a retarding device for a hand held cutting machine having a housing (1) and a drive engine, which drives a transmission including a number of transmission members (3′, 2) and driving a rotational or semi rotational cutting tool. The retarding device includes brake means (12, 17) arranged to be in close relation with the transmission and for actuating a retarding force on a transmission member (2), the brake means being arranged to automatically put a retarding force on said transmission member when the speed of rotation or the torque of rotation of said transmission member falls below a predetermined value.

摘要翻译： 本发明涉及一种具有壳体（1）和驱动发动机的手持式切割机的延迟装置，其驱动包括多个传动部件（3'，2）的传动装置，并且驱动旋转或半旋转切割 工具。 减速装置包括布置成与变速器紧密相关并且用于致动传动构件（2）上的阻力的制动装置（12,17），该制动装置被布置成当所述制动装置自动地在所述传动构件上施加阻力， 所述传动构件的旋转速度或转动转矩低于预定值。

公开(公告)号：US07331110B2

公开(公告)日：2008-02-19

申请号：US10550771

申请日：2004-03-26

申请人： Göran Dahlberg ,  Gustaf Döragrip

发明人： Göran Dahlberg ,  Gustaf Döragrip

IPC分类号： B26B27/00

CPC分类号： A01G3/08 ,  B27B17/0033

摘要： This invention relates to a device for a pole saw for pruning trees or bushes. The pole saw comprises an elongated stiff tube extending from a drive unit to a remote chain saw head (12) and incorporates a drive shaft (14) connected to an input shaft (15) of a gear (16) arranged in the chain saw head (12). The gear is provided with an output shaft (18) on which a sprocket wheel (20) for driving a saw chain is arranged. A mass body vibration damper (23) is arranged between the gear (16) and the sprocket wheel (20).

摘要翻译： 本发明涉及一种用于修剪树木或灌木丛的杆锯装置。 杆锯包括从驱动单元延伸到远程链锯头（12）的细长刚性管，并且包括连接到布置在链锯头中的齿轮（16）的输入轴（15）的驱动轴（14） （12）。 齿轮设有输出轴（18），用于驱动锯链的链轮（20）布置在该输出轴上。 在齿轮（16）和链轮（20）之间布置有质量体振动阻尼器（23）。