公开(公告)号：US4816192A

公开(公告)日：1989-03-28

申请号：US123149

申请日：1987-11-20

申请人： Mohamed Abou-Aly ,  Eberhard Bohnacker ,  Bernhard Kiefel ,  Reinhard Gerhardy ,  Reinhard Friedrich ,  Erich Krauter

发明人： Mohamed Abou-Aly ,  Eberhard Bohnacker ,  Bernhard Kiefel ,  Reinhard Gerhardy ,  Reinhard Friedrich ,  Erich Krauter

IPC分类号： B27B17/00 ,  F02B63/02 ,  F02M15/02 ,  F02M15/04

CPC分类号： F02M15/022 ,  B27B17/00 ,  F02B63/02 ,  Y10S261/20

摘要： The invention is directed to a handheld, portable tool such as a chain saw equipped with an internal combustion engine mounted in an engine housing. The engine has a carburetor defining an air-intake channel. A heating element is provided which is electrically connected to the generator of the chain saw and mounted on the carburetor in the region of the air-intake channel. The heating element has a positive temperature coefficient and a predetermined temperature region thereby preventing the carburetor housing and the throttle flap from heating to a temperature above a predetermined value. The heating element and the way it is mounted prevents icing at the carburetor in cold weather thereby enabling the engine to run uninterruptedly and uniformly especially when the engine idles.

摘要翻译： 本发明涉及一种手持式便携式工具，例如装备有安装在发动机壳体中的内燃机的链锯。 发动机具有限定进气通道的化油器。 提供了一种加热元件，其与链锯的发电机电连接，并且安装在进气通道的区域中的化油器上。 加热元件具有正温度系数和预定温度区域，从而防止化油器壳体和节流阀片加热到高于预定值的温度。 加热元件及其安装方式可防止化油器在寒冷天气下结冰，从而使发动机不间断地和均匀地运行，特别是当发动机空转时。

公开(公告)号：US20090314243A1

公开(公告)日：2009-12-24

申请号：US12552781

申请日：2009-09-02

申请人： Olaf Schmidt ,  Christuph V. Hiller ,  Reinhard Friedrich ,  Michael Joos ,  Jens Kern ,  Helmut Schlessmann

发明人： Olaf Schmidt ,  Christuph V. Hiller ,  Reinhard Friedrich ,  Michael Joos ,  Jens Kern ,  Helmut Schlessmann

IPC分类号： F02M35/10

CPC分类号： F02B25/22 ,  F02B33/04 ,  F02B2075/025 ,  F02M35/10032 ,  F02M35/10085 ,  F02M35/1019 ,  F02M35/10321 ,  F02M35/108 ,  F05C2225/08

摘要： An internal combustion engine of a manually operated implement, having an elastic connecting duct between the engine and an air filter for vibration-decoupled bridging of a vibration gap between engine and the air filter. The elastic connecting duct has a first conduit for fuel/air mixture and a second conduit for largely fuel-free air. The first and second conduits are separate tubes having respective bores that are separated from one another over their entire lengths, the inlet of the engine is operatively connected to the air filter via the first conduit, and an air duct window of the engine is operatively connected to the air filter via the second conduit.

摘要翻译： 一种手动工具的内燃机，在发动机和空气过滤器之间具有弹性连接管道，用于发动机和空气过滤器之间的振动间隙的振动解耦桥接。 弹性连接管道具有用于燃料/空气混合物的第一管道和用于大部分无燃料空气的第二管道。 第一和第二导管是具有彼此在其整个长度上彼此分离的相应孔的独立管，发动机的入口经由第一管道可操作地连接到空气过滤器，并且发动机的风道窗可操作地连接 通过第二导管到空气过滤器。

公开(公告)号：US4872587A

公开(公告)日：1989-10-10

申请号：US216203

申请日：1988-07-07

申请人： Gunther Zimmermann ,  Reinhard Friedrich ,  Wolfgang Nantt ,  Wolfgang Weissert

发明人： Gunther Zimmermann ,  Reinhard Friedrich ,  Wolfgang Nantt ,  Wolfgang Weissert

IPC分类号： B60K15/04 ,  B65D55/16

CPC分类号： B65D55/165 ,  B60K15/0406

摘要： A threaded closure is provided with a receiving opening 16 in the part thereof which projects into a fuel tank. The end of a limp connecting part 13 is rotatably mounted in this recess and is however axially fixed. The threaded closure prevents damage to the sealing surface and prevents the threaded closure from becoming separated from the fuel tank so that it cannot be lost.

摘要翻译： 螺纹封闭件在其部分中设置有突出到燃料箱中的接收开口16。 跛脚连接部13的端部可旋转地安装在该凹部中，然而轴向固定。 螺纹封盖防止对密封表面的损坏，并防止螺纹闭合件与燃料箱分离，使得其不会丢失。

公开(公告)号：US08516989B2

公开(公告)日：2013-08-27

申请号：US12552781

申请日：2009-09-02

申请人： Olaf Schmidt ,  Christoph V. Hiller ,  Reinhard Friedrich ,  Michael Joos ,  Jens Kern ,  Helmut Schlessmann

发明人： Olaf Schmidt ,  Christoph V. Hiller ,  Reinhard Friedrich ,  Michael Joos ,  Jens Kern ,  Helmut Schlessmann

IPC分类号： F02B77/04

CPC分类号： F02B25/22 ,  F02B33/04 ,  F02B2075/025 ,  F02M35/10032 ,  F02M35/10085 ,  F02M35/1019 ,  F02M35/10321 ,  F02M35/108 ,  F05C2225/08

摘要： An internal combustion engine of a manually operated implement, having an elastic connecting duct between the engine and an air filter for vibration-decoupled bridging of a vibration gap between engine and the air filter. The elastic connecting duct has a first conduit for fuel/air mixture and a second conduit for largely fuel-free air. The first and second conduits are separate tubes having respective bores that are separated from one another over their entire lengths, the inlet of the engine is operatively connected to the air filter via the first conduit, and an air duct window of the engine is operatively connected to the air filter via the second conduit.

摘要翻译： 一种手动工具的内燃机，在发动机和空气过滤器之间具有弹性连接管道，用于发动机和空气过滤器之间的振动间隙的振动解耦桥接。 弹性连接管道具有用于燃料/空气混合物的第一管道和用于大部分无燃料空气的第二管道。 第一和第二导管是具有彼此在其整个长度上彼此分离的相应孔的独立管，发动机的入口经由第一管道可操作地连接到空气过滤器，并且发动机的风道窗可操作地连接 通过第二导管到空气过滤器。

公开(公告)号：US06539911B2

公开(公告)日：2003-04-01

申请号：US09944762

申请日：2001-08-31

申请人： Bernhard Dürr ,  Harald Schliemann ,  Reinhard Friedrich ,  Manfred Rabis

发明人： Bernhard Dürr ,  Harald Schliemann ,  Reinhard Friedrich ,  Manfred Rabis

IPC分类号： F01M100

CPC分类号： F01M9/101 ,  F01M1/04 ,  F01M3/00 ,  F02B2075/027

摘要： A cam drive is provided for a valve-controlled mixture-lubricated internal combustion engine having a cylinder in which is formed a combustion chamber that is delimited by the cylinder wall, a piston and a cylinder head. Disposed in the cylinder head are poppet valves, the respective valve shafts of which are driven via a pivotable rocker arm from a valve control that includes a control cam on the surface of which rests a contact lever that transfers cam lift to one end of the rocker arm. To ensure good lubrication of the cam drive even at high speeds, the control cam is rotatably mounted in the vicinity of the cylinder wall, in which is formed a through-bore. The first open end of the through-bore is disposed in the cylinder bore at the level of the piston in its lower dead center position, while the second open end opens into the cam chamber in the vicinity of the control cam.

公开(公告)号：US20110179651A1

公开(公告)日：2011-07-28

申请号：US12929486

申请日：2011-01-28

申请人： Markus Hittmann ,  Ralf Schenk ,  Reinhard Friedrich ,  Gunter Mayer

发明人： Markus Hittmann ,  Ralf Schenk ,  Reinhard Friedrich ,  Gunter Mayer

IPC分类号： A01G3/053

CPC分类号： A01G3/053

摘要： The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (1). The eccentric gear arrangement includes two shearing blades (2, 3) driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link (4, 5) as well as an eccentric wheel (6) having a drive wheel (7) and two eccentrics (8, 9). The eccentric wheel (6) rotates about a rotational axis (10). The two connecting links (4, 5) lie directly above one another. The two eccentrics (8, 9) are arranged on the same side of the drive wheel (7) and engage each in one of the two connecting links (4, 5). The two shearing blades (2, 3) have contact pressure surfaces (11, 12) in the region of their two connecting links (4, 5) and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders (13, 14) are provided which act each on one of the assigned contact pressure surfaces (11, 12).

摘要翻译： 本发明涉及一种电动驱动的手动导向树篱修剪器（1）的偏心齿轮装置。 偏心齿轮装置包括在位移路径（a）上沿彼此相反的方向驱动的两个剪切刀片（2,3）。 每个剪切刀片具有连接连杆（4,5）以及具有驱动轮（7）和两个偏心轮（8,9）的偏心轮（6）。 偏心轮（6）围绕旋转轴线（10）旋转。 两个连接链接（4,5）直接位于彼此之间。 两个偏心轮（8,9）布置在驱动轮（7）的同一侧，并且在两个连接杆（4,5）中的一个中啮合。 两个剪切刀片（2,3）在其两个连接链节（4,5）的区域中具有接触压力表面（11,12），并且以这样的方式相互偏移，使得它们至少暴露于 位移路径（a）的一部分。 提供了两个下拉器（13,14），每个在所分配的接触压力表面（11,12）中的一个上起作用。

公开(公告)号：US4958602A

公开(公告)日：1990-09-25

申请号：US424821

申请日：1989-10-20

申请人： Klaus Hoppner ,  Reinhard Friedrich ,  Hermann Weiss

发明人： Klaus Hoppner ,  Reinhard Friedrich ,  Hermann Weiss

IPC分类号： F02F7/00 ,  F02B63/02 ,  F02B75/02 ,  F16C19/52 ,  F16C35/04

CPC分类号： F16C9/02 ,  F02B63/02 ,  F16C19/52 ,  F16C25/08 ,  F02B2075/025 ,  F05C2201/021 ,  F05C2251/042

摘要： The invention relates to internal combustion engines and especially to two-stroke engines for portable handheld work tools such as motor-driven chain saws or the like. Material made of light metal alloys is used in two-stroke engines for portable handheld tools in order to save weight. Thus, the crankshaft bearing is made of steel while the bearing covers holding the bearing are made of a magnesium alloy. Heating causes the bearing cover to expand by an amount greater than the crankshaft bearing whereby the press fit of the crankshaft bearing can become endangered and, in an extreme case, a clearance can develop between the crankshaft bearing and the bearing cover. According to the invention, the press fit between the crankshaft bearing and the bearing cover is maintained by placing a plastic annular segment therebetween having a thermal expansion coefficient so selected that it compensates for the different thermal expansions of the bearing cover and the bearing.

摘要翻译： 本发明涉及内燃机，尤其涉及用于诸如电动链锯等的便携式手持式工作工具的二冲程发动机。 由轻金属合金制成的材料用于便携式手持工具的二冲程发动机，以节省重量。 因此，曲轴轴承由钢制成，而保持轴承的轴承盖由镁合金制成。 加热使得轴承盖膨胀的量大于曲轴轴承，由此曲轴轴承的压配可能变得濒危，并且在极端情况下，曲轴轴承和轴承盖之间可以产生间隙。 根据本发明，曲轴轴承和轴承盖之间的压配合通过在其间设置具有如此选择的热膨胀系数的塑料环形部分来维持，以补偿轴承盖和轴承的不同热膨胀。

公开(公告)号：US08667697B2

公开(公告)日：2014-03-11

申请号：US12929486

申请日：2011-01-28

申请人： Markus Hittmann ,  Ralf Schenk ,  Reinhard Friedrich ,  Günter Mayer

发明人： Markus Hittmann ,  Ralf Schenk ,  Reinhard Friedrich ,  Günter Mayer

IPC分类号： B23D49/00

CPC分类号： A01G3/053

摘要： The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (1). The eccentric gear arrangement includes two shearing blades (2, 3) driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link (4, 5) as well as an eccentric wheel (6) having a drive wheel (7) and two eccentrics (8, 9). The eccentric wheel (6) rotates about a rotational axis (10). The two connecting links (4, 5) lie directly above one another. The two eccentrics (8, 9) are arranged on the same side of the drive wheel (7) and engage each in one of the two connecting links (4, 5). The two shearing blades (2, 3) have contact pressure surfaces (11, 12) in the region of their two connecting links (4, 5) and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders (13, 14) are provided which act each on one of the assigned contact pressure surfaces (11, 12).

摘要翻译： 本发明涉及一种电动驱动的手动导向树篱修剪器（1）的偏心齿轮装置。 偏心齿轮装置包括在位移路径（a）上沿彼此相反的方向驱动的两个剪切刀片（2,3）。 每个剪切刀片具有连接连杆（4,5）以及具有驱动轮（7）和两个偏心轮（8,9）的偏心轮（6）。 偏心轮（6）围绕旋转轴线（10）旋转。 两个连接链接（4,5）直接位于彼此之间。 两个偏心轮（8,9）布置在驱动轮（7）的同一侧，并且在两个连接杆（4,5）中的一个中啮合。 两个剪切刀片（2,3）在其两个连接链节（4,5）的区域中具有接触压力表面（11,12），并且以这样的方式相互偏移，使得它们至少暴露于 位移路径（a）的一部分。 提供了两个下拉器（13,14），每个在所分配的接触压力表面（11,12）中的一个上起作用。

公开(公告)号：US06925718B2

公开(公告)日：2005-08-09

申请号：US10219377

申请日：2002-08-12

申请人： Udo Bartmann ,  Roland Schierling ,  Reinhard Friedrich

发明人： Udo Bartmann ,  Roland Schierling ,  Reinhard Friedrich

IPC分类号： B24B23/02 ,  B24B45/00 ,  A01D34/00 ,  A01D34/412

CPC分类号： B24B23/02 ,  B24B45/00 ,  Y10T83/9377

摘要： A tool head for a motor-driven, manually guided implement for receiving a rotatable cutter tool is provided. The tool head comprises a housing in which is provided a tool shaft that is rotatably mounted via bearings. Secured on the tool shaft so as to turn with it is a tool carrying mechanism for the cutter tool. This tool carrying mechanism includes an engagement plate having an engagement surface, which is oriented perpendicular to the axis of the shaft, and a centering shoulder. The engagement plate and a centering element having the centering shoulder are embodied as separate components. The engagement plate is of light weight construction and is positively connected with the tool shaft. The centering element is made of a material, the hardness of which is adapted to the cutter tool.

摘要翻译： 提供了用于接收可旋转刀具的电动驱动的手动导向工具的工具头。 工具头包括壳体，其中设置有通过轴承可旋转地安装的工具轴。 固定在工具轴上，以便与其一起转动是用于刀具的工具承载机构。 该工具承载机构包括具有垂直于轴的轴线定向的接合表面和定心台肩的接合板。 接合板和具有定心台肩的定心元件被实施为分离的部件。 接合板重量轻，与工具轴正确连接。 定心元件由材料制成，其硬度适用于刀具。

公开(公告)号：US20050051127A1

公开(公告)日：2005-03-10

申请号：US10936542

申请日：2004-09-09

申请人： Roland Adam ,  Markus Keller ,  Stefan Kummermehr ,  Heiko Pinkawa ,  Jens Kern ,  Reinhard Friedrich

发明人： Roland Adam ,  Markus Keller ,  Stefan Kummermehr ,  Heiko Pinkawa ,  Jens Kern ,  Reinhard Friedrich

IPC分类号： F02N3/02 ,  F02N5/02 ,  F02N15/02 ,  F02N1/00

CPC分类号： F02N15/023

摘要： A starter device (1) for an internal combustion engine has a starter drum (4) which acts upon a spring housing (11) when starting. An intermediate spring (10) is arranged in the spring housing (11). One end of the intermediate spring (10) is fixed to the spring housing (11) and the other end of the intermediate spring (10) can be coupled to the crankshaft (3) of the engine via a first catch (23). The spring housing (11) and the starter drum (4) are journalled on a shaft (7) held at one end. The center of gravity (S) of the spring housing (11) lies in the region of the support of the spring housing (11) in order to reduce the acting bearing forces and to increase the service life of the starter device.

摘要翻译： 一种用于内燃机的起动装置（1）具有在起动时作用在弹簧壳体（11）上的起动鼓（4）。 中间弹簧（10）布置在弹簧壳体（11）中。 中间弹簧（10）的一端固定在弹簧壳体（11）上，而中间弹簧（10）的另一端可经由第一卡扣（23）与发动机的曲轴（3）相连。 弹簧壳体（11）和起动器鼓（4）被轴颈安装在保持在一端的轴（7）上。 弹簧壳体（11）的重心（S）位于弹簧壳体（11）的支撑件的区域中，以便减小作用的支承力并增加起动装置的使用寿命。