公开(公告)号：US06976472B2

公开(公告)日：2005-12-20

申请号：US10891011

申请日：2004-07-15

申请人： Hans Nickel

发明人： Hans Nickel

IPC分类号： F02D41/04 ,  F02D41/08 ,  F02D41/24 ,  F02P5/04 ,  F02P5/15 ,  F02P5/145 ,  F02D43/00

CPC分类号： F02P5/1508 ,  F02D41/045 ,  F02D41/08 ,  F02D41/2422 ,  F02D2200/1015 ,  F02D2400/04 ,  F02D2400/06 ,  F02P5/045 ,  F02P5/1504 ,  F02P5/1506 ,  Y02T10/46

摘要： An ignition circuit for a two-stroke engine has a spark plug connected via an ignition switch to a voltage source. The ignition switch is actuated via a control circuit to close the ignition switch in dependence upon the crankshaft angle and the rpm of the engine and to trigger an ignition spark per revolution of the crankshaft. For one and the same rpm, the control circuit makes available an ignition time point for the idle case and an ignition time point for the acceleration case. To achieve rapid acceleration from idle, the control circuit monitors idle rpm to switch to an ignition time point for the acceleration case for a pregiven rpm increase. If the control circuit determines an absence of the rpm increase or drop after ignition switchover to the acceleration case, then there is a switch back to the ignition time point for the idle case.

摘要翻译： 用于二冲程发动机的点火电路具有经由点火开关连接到电压源的火花塞。 点火开关通过控制电路被致动，以根据发动机的曲轴角度和转速来关闭点火开关，并且触发曲轴每转的点火火花点。 对于一个和相同的转速，控制电路为空转情况提供点火时间点，并为加速情况提供点火时间点。 为了实现怠速的快速加速，控制电路监视怠速转速以转换到加速情况下的点火时间点，以提高转速。 如果控制电路确定在点火开关切换到加速度情况后没有rpm增加或下降，那么有一个切换回空转时间点。

公开(公告)号：US06684998B2

公开(公告)日：2004-02-03

申请号：US10114370

申请日：2002-04-02

申请人： Hans Nickel

发明人： Hans Nickel

IPC分类号： F16D4318

CPC分类号： F16D43/18

摘要： A centrifugal clutch is provided, especially for manually-guided, motor-driven implements such as chainsaws and the like. The clutch comprises centrifugal bodies, each of which is essentially comprised of a shoe that has the shape of a circular arc and has a support member. The shoes are held and guided by guides on a carrier member that is disposed on the drive side. On the output side, the clutch is essentially formed of a drum having a surface that axially and radially spans the centrifugal bodies. Disposed at each end of a centrifugal body is a projection and a complementary recess, which both extend approximately tangentially relative to the drum.

摘要翻译： 提供离心离合器，特别是用于手动引导的电动驱动工具，例如链锯等。 离合器包括离心体，每个离心体主要由具有圆弧形状并具有支撑构件的鞋组成。 鞋子由设置在驱动侧的承载构件上的引导件保持和引导。 在输出侧，离合器基本上由具有轴向和径向跨越离心体的表面的滚筒形成。 在离心体的每个端部处设置有突起和互补的凹部，两者都相对于滚筒大致切向延伸。

公开(公告)号：US06571756B1

公开(公告)日：2003-06-03

申请号：US09889065

申请日：2001-07-06

申请人： Heiko Rosskamp ,  Hans Nickel ,  Axel Klimmek ,  Thomas Stark ,  Peter Pretzsch

发明人： Heiko Rosskamp ,  Hans Nickel ,  Axel Klimmek ,  Thomas Stark ,  Peter Pretzsch

IPC分类号： F02B3304

CPC分类号： F02B25/22 ,  F02B63/02 ,  F02B2075/025 ,  F02B2075/027

摘要： The invention relates to a two-cycle engine for a drive engine in a portable, manually operated tool. The combustion chamber formed in a cylinder is delimited by a piston that moves up and down, whereby the piston, by means of a connecting rod, drives a crankshaft rotatably mounted in a crankcase. The combustion chamber has an outlet for removing waste gases, and provided for supplying a fuel/air mixture prepared by a mixture preparation device, and combustion air, are gas-supplying channels that open into the combustion chamber. In order to reduce scavenging losses, it is provided that for the entire duration of the gas exchange exclusively air flows in the area near the outlet and exclusively fuel/air mixture flows out of the crankcase in the area further away from the outlet.

摘要翻译： 本发明涉及一种用于便携式手动操作工具中的驱动发动机的双冲程发动机。 形成在气缸中的燃烧室由上下移动的活塞限定，借助连杆驱动活塞可旋转地安装在曲轴箱中的曲轴。 燃烧室具有用于除去废气的出口，用于供应由混合物制备装置和燃烧空气制备的燃料/空气混合物，是向燃烧室通入的气体供应通道。 为了减少清除损失，条件是，在气体交换的整个持续时间内，专用空气在出口附近的区域中流动，并且仅在燃料/空气混合物从更远离出口的区域中流出曲轴箱。

公开(公告)号：US5725016A

公开(公告)日：1998-03-10

申请号：US610263

申请日：1996-03-04

申请人： Hans Nickel

发明人： Hans Nickel

IPC分类号： B60K15/077 ,  B60K15/035 ,  F02M37/00 ,  F16K17/02 ,  F16K17/18 ,  F16K17/19

CPC分类号： F16K17/18 ,  Y10T137/7772 ,  Y10T137/7779 ,  Y10T137/8085

摘要： The invention is directed to a pressure compensating valve for a fuel tank of a work apparatus such as a portable handheld work apparatus equipped with an internal combustion engine. The fuel tank has a tank wall and the pressure compensating valve includes a housing cap defining an inner space and is impermeable to air. A pressure compensating stub is provided on the tank wall and terminates within the housing cap. Pressure compensating apertures are formed in the tank wall to open into the stub and a valve is provided for controlling the apertures for venting and ventilating the fuel tank. A passage connects the inner space of the cap with the atmosphere. A finely porous filter element is fixedly held in the stub and the apertures open into the filter element. The housing cap is mounted on the filter element and is held on the filter element.

摘要翻译： 本发明涉及一种用于工作装置的燃料箱的压力补偿阀，例如装备有内燃机的便携式手持式工作装置。 燃料箱具有罐壁，并且压力补偿阀包括限定内部空间并且不透气的壳体盖。 压力补偿短柱提供在罐壁上并终止在壳体盖内。 压力补偿孔形成在罐壁中以进入短管，并且设置有用于控制孔以使燃料箱排气和通风的阀。 通道将盖的内部空间与大气连接。 细孔过滤元件被固定地保持在短截线中，并且开孔进入过滤元件。 壳体盖安装在过滤元件上并保持在过滤元件上。

公开(公告)号：US5353754A

公开(公告)日：1994-10-11

申请号：US93155

申请日：1993-07-19

申请人： Michael Wissmann ,  Hans Nickel ,  Roland Schierling ,  Roland Adam ,  Manfred Thaiss ,  Werner Geyer

发明人： Michael Wissmann ,  Hans Nickel ,  Roland Schierling ,  Roland Adam ,  Manfred Thaiss ,  Werner Geyer

IPC分类号： F02B75/02 ,  F02M37/04 ,  F02M37/12 ,  F02M55/04 ,  F02M59/10 ,  F02M59/14 ,  F02M59/46 ,  F02M69/10 ,  F02M69/34 ,  F04B45/053 ,  F04B53/00 ,  F02B33/04

CPC分类号： F02M69/34 ,  F02M37/043 ,  F02M37/12 ,  F02M55/04 ,  F02M59/107 ,  F02M59/14 ,  F02M69/10 ,  F02B2075/025 ,  Y10S123/05

摘要： The invention is directed to a fuel-injection arrangement for a two-stroke engine in a motor-driven chain saw. An injection pump is mounted in a base housing with the injection pump including a pump piston axially displaceable in a pump cylinder. The pump piston delimits a pump chamber. The pump chamber is connected via a suction valve to a fuel tank. The fuel drawn by suction is pumped by the pump piston via a pressure valve, an injection line and an injection valve to the engine. For driving the pump piston, the latter is connected at one end to a membrane via a membrane plate. The membrane delimits a work chamber charged with fluctuating crankcase pressure. A simple assembly is provided by arranging the pump chamber, the suction valve and the pressure valve in a common valve housing which, in turn, is seated in the base housing of the injection pump in a seal-tight manner. The injection line is connected directly to the valve housing. This permits a preassembly of the valve housing with the valves provided therein which facilitates the manufacture of the fuel-injection arrangement.

摘要翻译： 本发明涉及一种用于电动链锯中的二冲程发动机的燃料喷射装置。 注射泵安装在基座壳体中，注射泵包括在泵缸中可轴向移位的泵活塞。 泵活塞限定泵室。 泵室通过吸入阀连接到燃料箱。 通过抽吸抽吸的燃料由泵活塞通过压力阀，注射管线和喷射阀泵送到发动机。 为了驱动泵活塞，后者通过膜板在一端连接到膜。 隔膜界定了带有波动的曲轴箱压力的工作室。 通过将泵室，吸入阀和压力阀布置在共同的阀壳中来提供简单的组件，该阀壳又以密封的方式安置在注射泵的基座中。 注射管线直接连接到阀壳体。 这允许阀壳体与其中设置的阀预组装，这有助于燃料喷射装置的制造。

公开(公告)号：US4979477A

公开(公告)日：1990-12-25

申请号：US388929

申请日：1989-08-03

申请人： Hans Nickel ,  Michael Wissmann

发明人： Hans Nickel ,  Michael Wissmann

IPC分类号： F02B1/04 ,  F02B63/02 ,  F02B75/02 ,  F02P5/15 ,  F02P9/00

CPC分类号： F02B63/02 ,  F02P5/1502 ,  F02P9/002 ,  F02P9/005 ,  F02B1/04 ,  F02B2075/025 ,  Y02T10/46

摘要： The invention is directed to an ignition circuit for an internal combustion engine such as a two-stroke engine of a handheld, portable tool such as a motor-driven chain saw or the like. The engine has a cylinder and a piston conjointly defining a combustion chamber and a crankshaft connected to the piston. The ignition circuit includes a spark plug mounted in the cylinder and voltage source. A switch is actuable between an on-condition wherein the voltage source is connected to the spark plug for initiating a spark in the chamber and an off-condition wherein the voltage source is disconnected from the spark plug. An electronic control circuit actuates the switch between the two conditions in dependence upon the angular position of the crankshaft and other operating parameters of the engine such as the engine speed. The electronic control circuit includes a high-speed control circuit and an idle-speed control circuit for determining the firing time in the control range of the idle speed.

摘要翻译： 本发明涉及一种用于内燃机的点火电路，例如诸如电动链锯等的手持便携式工具的二冲程发动机。 发动机具有连接到活塞的燃烧室和曲轴的气缸和活塞。 点火电路包括安装在气缸和电压源中的火花塞。 开关可以在其中电压源连接到火花塞以用于在室中引发火花的状态和其中电压源与火花塞断开的关闭的状态下致动。 电子控制电路根据曲轴的角度位置和发动机的其他操作参数（例如发动机转速）来在两个状态之间驱动开关。 电子控制电路包括高速控制电路和怠速控制电路，用于确定怠速转速的控制范围内的点火时间。

公开(公告)号：US4819779A

公开(公告)日：1989-04-11

申请号：US36016

申请日：1987-04-08

申请人： Hans Nickel ,  Michael Wissmann ,  Horst Scholz

发明人： Hans Nickel ,  Michael Wissmann ,  Horst Scholz

IPC分类号： F16D43/14 ,  B27B17/10 ,  F16D43/18

CPC分类号： F16D43/18 ,  B27B17/10

摘要： A centrifugal clutch for use especially in a motor-driven chain saw. The clutch includes a carrier which is provided for attachment to a drive shaft and on which radially moveable centrifugal weights are mounted. The weights can move radially outwardly under centrifugal force and counter to spring force and come into contact engagement with the drum which is the output end of the clutch. A restraining device is provided between each centrifugal weight 2 and carrier 1 so that the engagement of the clutch does not occur until after an elevated speed has been reached. Disengagement of the clutch occurs as in known clutches somewhat above the idling speed. The restraining device is configured so that it does not clear the outward path of the centrifugal weight until a certain minimum centrifugal force has been exceeded. This has the effect that the clutch engages suddenly at mid range speeds and can transmit a very high initial torque to the output tool driven through the clutch.

摘要翻译： 一种特别用于电动链锯的离心式离合器。 该离合器包括一个载体，该载体被设置用于附接到一个驱动轴上并且其上安装有可径向移动的离心重物。 重量可以在离心力和反作用力下径向向外移动，并与作为离合器输出端的滚筒接触。 在每个离心配重2和承载件1之间设有约束装置，使得离合器的接合直到达到高速之后才会发生。 离合器的脱离发生在已知的离合器中稍微高于空转速度。 限制装置构造成使得它不能清除离心重物的向外的路径，直到超过某一最小离心力。 这具有离合器在中速范围内突然接合并且可以将非常高的初始扭矩传递到通过离合器驱动的输出工具的效果。

公开(公告)号：US4773362A

公开(公告)日：1988-09-27

申请号：US62121

申请日：1987-06-15

申请人： Michael Wissmann ,  Hans Nickel ,  Jurgen Weber

发明人： Michael Wissmann ,  Hans Nickel ,  Jurgen Weber

IPC分类号： F02M1/08 ,  F02B75/02 ,  F02M1/10

CPC分类号： F02M1/10 ,  F02B2075/025

摘要： An automatic starting arrangement for a hand-started internal combustion engine is disclosed. Internal combustion engines of this type have a choke flap and a throttle flap positioned one behind the other in the air-intake channel. In order to ensure a reliable starting of the engine independently of manual positioning activities, the invention provides that in the starting operation, the choke flap initially moves independently of the throttle flap. The throttle flap is held in a half-throttle position between the full-throttle position and the idle position. Before the choke flap is brought into its at-rest no-choke position, a movable holding mechanism is actuated and the throttle flap is released.

摘要翻译： 公开了一种手动起动内燃机的自动启动装置。 这种类型的内燃机在进气通道中具有扼流圈和一个在另一个之后定位的节流阀。 为了确保独立于手动定位活动的发动机的可靠启动，本发明提供了在启动操作中，扼流圈最初独立于节流阀片移动。 节气门瓣在全节气门位置和空转位置之间保持在半节气门位置。 在扼流圈进入其静止无阻塞位置之前，启动可动保持机构并释放节流阀。

公开(公告)号：US4635777A

公开(公告)日：1987-01-13

申请号：US722080

申请日：1985-04-11

申请人： Hans Nickel ,  Michael Wissmann

发明人： Hans Nickel ,  Michael Wissmann

IPC分类号： B27B17/10 ,  F16D43/18 ,  F16D13/18

CPC分类号： B27B17/10 ,  F16D43/18

摘要： A centrifugal clutch has a carrier and at least two centrifugal weights which are each connected to the carrier by means of at least one spring. These centrifugal weights are pivotally mounted on the carrier and are preloaded radially inwardly with respect to the carrier by means of the springs. In this way, the centrifugal weights have a defined pivot axis so that they can pivotally move from their rest position to the coupling position when the rotational speed exceeds a predetermined speed above no-load speed. By preloading the centrifugal weights, the latter are prevented from pivoting outwardly at speeds below no-load speed so that the centrifugal weights do not strike the clutch drum at rotational speeds beneath a predetermined value.

摘要翻译： 离心式离合器具有载体和至少两个离心重物，每个离心重物通过至少一个弹簧连接到载体。 这些离心重物枢转地安装在载体上，并通过弹簧相对于载体径向向内预加载。 以这种方式，离心重物具有确定的枢转轴线，使得当转速超过空载速度以上的预定速度时，它们可以从其静止位置枢转地移动到联接位置。 通过预先加载离心重物，防止后者在低于空载速度的速度下向外转动，使得离心重量不会以低于预定值的转速撞击离合器鼓。

公开(公告)号：US07441518B2

公开(公告)日：2008-10-28

申请号：US11502041

申请日：2006-08-10

申请人： Claus Naegele ,  Hans Nickel

发明人： Claus Naegele ,  Hans Nickel

IPC分类号： F02B33/04 ,  F02B25/00

CPC分类号： F02B25/22 ,  F02B33/04 ,  F02M3/05 ,  F02M7/12 ,  F02M69/10 ,  F02M69/34 ,  F02M69/462

摘要： An internal combustion engine having an intake channel that opens into a crankcase. A first fuel channel opens into the intake channel to supply fuel thereto as a function of underpressure in the intake channel. An auxiliary channel opens into a transfer channel that fluidically connects a crankcase to the combustion chamber. A second fuel channel opens into the auxiliary channel and is connected to a storage reservoir for fuel. At least one valve controls the quantity of fuel to be supplied to the engine via the auxiliary channel. Largely fuel-free air is supplied to the engine via the intake channel during idling. During a first revolution of the crankshaft, fuel is supplied via the auxiliary channel, so that a combustible mixture can form in the combustion chamber. During a second revolution, largely fuel-free air is supplied via the auxiliary channel and the combustion chamber is scavenged with largely fuel-free air.

摘要翻译： 具有进入曲轴箱的进气通道的内燃机。 作为进气通道中的负压的函数，第一燃料通道通向进气通道以供应燃料。 辅助通道打开到将曲轴箱与燃烧室流体连接的输送通道。 第二燃料通道通向辅助通道并连接到用于燃料的储存容器。 至少一个阀控制通过辅助通道供应给发动机的燃料量。 在空转期间，通过进气通道向发动机提供大量无燃料的空气。 在曲轴的第一次旋转期间，通过辅助通道供应燃料，使得在燃烧室中形成可燃混合物。 在第二次旋转期间，通过辅助通道提供大部分无燃料的空气，并且燃烧室被大量无燃料的空气清扫。