公开(公告)号：US4381751A

公开(公告)日：1983-05-03

申请号：US236382

申请日：1981-02-20

申请人： Wolfgang Maisch ,  Jurgen Peters ,  Michael Wissmann ,  Karl Gmelin ,  Peter Stiefel

发明人： Wolfgang Maisch ,  Jurgen Peters ,  Michael Wissmann ,  Karl Gmelin ,  Peter Stiefel

IPC分类号： F02M69/54 ,  F02M69/00 ,  F02M69/26 ,  F02M39/00

CPC分类号： F02M69/26

摘要： A fuel injection system is proposed which serves to provide the most precise possible adaptation of the fuel-air mixture to operating conditions of the internal combustion engine. The fuel injection system includes metering valves, each of which is assigned one regulating valve, whose movable valve element can be exposed on the one hand to the fuel pressure downstream of the respective metering valve and on the other hand to the pressure in a control pressure line, which is limited on the one hand by an electro-fluid converter of the nozzle/bounce plate type and on the other hand by a control throttle. The electro-fluid converter is triggerable in accordance with operating characteristics of the engine. A pressure limitation valve is embodied as a diaphragm valve and serves to regulate the most precise possible system pressure in the engine and, when the engine is shut off, it serves to reduce the fuel pressure in the fuel injection system below the fuel pressure required for opening the injection valves and to block the return flow lines.

摘要翻译： 提出了一种燃料喷射系统，其用于提供燃料 - 空气混合物对内燃机的操作条件的最精确的可能的适应。 燃料喷射系统包括计量阀，每个计量阀被分配一个调节阀，其可移动阀元件可以一方面暴露于相应计量阀下游的燃料压力，另一方面暴露于控制压力 一方面由喷嘴/反弹板型的电流体转换器限制，另一方面由控制节流阀限制。 电流体转换器可根据发动机的操作特性进行触发。 压力限制阀被实施为隔膜阀，并且用于调节发动机中最精确的可能的系统压力，并且当发动机关闭时，其用于将燃料喷射系统中的燃料压力降低到低于 打开注射阀并阻止回流管线。

公开(公告)号：US4353385A

公开(公告)日：1982-10-12

申请号：US236385

申请日：1981-02-20

申请人： Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Karl Gmelin

发明人： Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Karl Gmelin

IPC分类号： F02M69/00 ,  F02M69/26 ,  F02M69/54 ,  F02M37/00

CPC分类号： F02M69/26 ,  Y10T137/2642 ,  Y10T137/7836

摘要： A diaphragm pressure regulator is proposed which serves to regulate a fluid pressure in a system having fluid flowing through it, and in particular to relate the fuel pressure in a fuel injection system. The diaphragm pressure regulator includes a valve diaphragm, which cooperates with a valve seat. The valve diaphragm separates a spring chamber having a system pressure spring from a system pressure chamber, into which the valve seat, which is axially displaceable and is supported in an axial bearing point, protrudes and which communicates with the fluid to be regulated. The end of the valve seat remote from the valve diaphragm is embodied as a valve plate and protrudes into a collection chamber, in which it opens a sealing seat toward a return flow line to a greater or lesser extent. A closing pressure spring engages the valve plate and urges the valve seat in the direction of the valve diaphragm. When the valve diaphragm is lifted up from the valve seat, fluid flows via a conduit in the valve seat into the collection chamber. A throttle gap is provided between the system pressure chamber and the collection chamber, by way of which throttle gap fluid can flow out to the collection chamber, when the fluid system is shut off, until such time as the valve plate is pressed in a sealing fashion against the sealing seat and blocks the return flow line, which takes place below a predetermined fluid pressure.

摘要翻译： 提出了一种隔膜压力调节器，其用于调节具有流过其中的流体的系统中的流体压力，并且特别地涉及燃料喷射系统中的燃料压力。 膜片压力调节器包括与阀座配合的阀膜片。 阀隔膜将具有系统压力弹簧的弹簧室从系统压力室分离开，阀座可轴向移动并被支撑在轴向支承点中，并且与被调节的流体连通。 远离阀隔膜的阀座的端部被实施为阀板并且突出到收集室中，在收集室中朝向返回流动管线打开密封座或多或少的程度。 闭合压力弹簧与阀板接合并沿阀膜片的方向推压阀座。 当阀膜从阀座上升时，流体经由阀座中的导管流入收集室。 在系统压力室和收集室之间提供节流间隙，当流体系统被切断时，节流间隙流体可以通过该节流间隙流体流出到收集室，直到阀板被密封 抵抗密封座并阻止在预定流体压力以下发生的回流管线。

公开(公告)号：US4341192A

公开(公告)日：1982-07-27

申请号：US129496

申请日：1980-03-11

申请人： Heinrich Knapp ,  Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Gunther Jaggle ,  Peter Schelhas

发明人： Heinrich Knapp ,  Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Gunther Jaggle ,  Peter Schelhas

IPC分类号： F02D3/02 ,  F02M69/14 ,  F02M69/22 ,  F02M69/26 ,  F02M69/44 ,  F02M69/00

CPC分类号： F02M69/22 ,  F02M69/26 ,  F02M69/44

摘要： A fuel injection system is proposed which brings about an improvement in the acceleration behavior of an internal combustion engine. The fuel injection system includes metering valves actuatable by means of an air flow measuring device, at which valves a pressure difference can be held constant via control valves and the pressure difference is variable in accordance with operational characteristics of the engine. To this end, the control valves are located on a control pressure line in which a control throttle and an electromagnetic valve are disposed. At the same time, pressure limitation elements communicate with the control pressure line and, in the event of acceleration of the engine, reduce the extent of increase of control pressure and thus assure fuel metering corresponding with the operational state of the engine.

摘要翻译： 提出了一种燃料喷射系统，其引起内燃机的加速行为的改善。 燃料喷射系统包括可通过气流测量装置致动的计量阀，在该阀处通过控制阀将压力差保持不变，并且压力差根据发动机的操作特性是可变的。 为此，控制阀位于控制节流阀和电磁阀的控制压力管路上。 同时，压力限制元件与控制压力线通信，并且在发动机的加速的情况下减小控制压力的增加的程度，从而确保与发动机的操作状态对应的燃料计量。

公开(公告)号：US4326487A

公开(公告)日：1982-04-27

申请号：US132056

申请日：1980-03-20

申请人： Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Peter Schelhas

发明人： Wolfgang Maisch ,  Klaus-Jurgen Peters ,  Michael Wissmann ,  Peter Schelhas

IPC分类号： F02D3/02 ,  F02M69/14 ,  F02M69/22 ,  F02M69/26 ,  F02M69/38 ,  F02M69/44 ,  F02M39/00

CPC分类号： F02M69/386 ,  F02M69/22 ,  F02M69/26 ,  F02M69/44

摘要： A fuel injection system is proposed which brings about an improvement in the acceleration behavior of an internal combustion engine. The fuel injection system includes an intake manifold having a measuring device arranged therein which is moved against a restoring force in accordance with the quantity of air flowing therethrough and thereby actuates the control slide of a distribution valve. The restoring force on the air flow measuring device is actuated by fuel, supplied by a fuel pump via a damping throttle, which operates within a pressure chamber into which the control slide protrudes by means of an end face. A check valve is arranged in a discharge line between the pressure chamber and the delivery side or the suction side of the pump, and opens above a predetermined pressure within the pressure chamber. This allows a rapid unloading of the pressure chamber and a rapid response of the fuel injection system in the case of an acceleration.

摘要翻译： 提出了一种燃料喷射系统，其引起内燃机的加速行为的改善。 燃料喷射系统包括具有布置在其中的测量装置的进气歧管，该测量装置根据流过其中的空气量抵抗恢复力移动，从而致动分配阀的控制滑块。 气流测量装置上的恢复力由燃料驱动，由燃料泵通过阻尼节流阀提供，阻尼节流阀在控制滑块通过端面突出的压力室内工作。 止回阀布置在压力室与泵的排出侧或吸入侧之间的排出管线中，并且在压力室内的预定压力以上打开。 这允许在加速的情况下快速卸载压力室和燃料喷射系统的快速响应。

公开(公告)号：US4364362A

公开(公告)日：1982-12-21

申请号：US227867

申请日：1981-01-23

申请人： Michael Wissmann ,  Peter Stiefel

发明人： Michael Wissmann ,  Peter Stiefel

IPC分类号： F02D3/00 ,  F02M69/14 ,  F02M69/22 ,  F02M39/00

CPC分类号： F02M69/22

摘要： A metering and distribution valve assembly is proposed for a fuel injection system of an internal combustion engine. The metering and distribution valve assembly includes a control slide having a head 68 and a control edge and a slotted sleeve with at least two control slits. The control edge opens the control slits to a greater or lesser degree in accordance with the relative motion between the control slide and the control slits in the slotted sleeve. An end face of the control slide adjacent to the control edge is exposed to a control pressure which is lower than the system pressure engaging the control edge. The pressure drop at the circumference of the control slide head formed between the control edge and the end face is capable of being influenced in such a manner that the control slide head rests unilaterally on the slotted sleeve at least during a portion of the displacement movement. As a result, better metering precision is obtained. The unilateral resting of the control slide head on one side of the slide bore can be effected either by the application of fuel at system pressure at the aperture or by the application of fuel at control pressure at the longitudinal groove.

摘要翻译： 提出了一种用于内燃机的燃料喷射系统的计量和分配阀组件。 计量和分配阀组件包括具有头部68和控制边缘的控制滑块以及具有至少两个控制狭缝的开槽套管。 根据控制滑块和开槽套筒中的控制狭缝之间的相对运动，控制边缘或多或少地打开控制狭缝。 与控制边缘相邻的控制滑块的端面暴露于低于与控制边缘接合的系统压力的控制压力。 控制滑动头在控制边缘和端面之间形成的圆周处的压降能够受到影响，使得控制滑动头至少在位移运动的一部分期间单向地搁置在开槽套筒上。 结果，获得更好的计量精度。 控制滑动头在滑动孔的一侧上的单侧休息可以通过在孔的系统压力下施加燃料或通过在纵向槽处的控制压力下施加燃料来实现。

公开(公告)号：US4192271A

公开(公告)日：1980-03-11

申请号：US905302

申请日：1978-05-02

申请人： Klaus-Jurgen Peters ,  Michael Wissmann ,  Peter Schelhas

发明人： Klaus-Jurgen Peters ,  Michael Wissmann ,  Peter Schelhas

IPC分类号： F02D3/00 ,  F02M69/22 ,  F02M69/42 ,  F02M39/00

CPC分类号： F02M69/42 ,  F02M69/22 ,  Y10S261/74

摘要： A regulating apparatus is proposed for a fuel supply system for a mixture-compressing, externally ignited internal combustion engine, which serves to enrich the fuel-air mixture furnished to the engine when it is started cold and while it warms up. The regulating apparatus comprises a pressure-regulating valve which sets the fuel pressure, the closing force of which on the movable valve part is influenced by a temperature-dependent element by means of a relay device and a regulating spring coaxially correlated therewith. Accordingly in a predetermined temperature range, the temperature-dependent element and the movable valve part are connected only by the regulating spring.

摘要翻译： 提出了一种用于混合压缩的外部点燃的内燃机的燃料供应系统的调节装置，其用于在发动机冷启动时及其加热时提供给发动机的燃料空气混合物。 调节装置包括压力调节阀，其设置燃料压力，其中可动阀部件的关闭力受到与温度相关的元件的影响，该继电器装置和与其同轴相关的调节弹簧。 因此，在规定的温度范围内，温度依赖元件和可动阀部仅通过调节弹簧连接。

公开(公告)号：US5447131A

公开(公告)日：1995-09-05

申请号：US285303

申请日：1994-08-03

申请人： Hans Nickel ,  Thomas Schuster ,  Michael Wissmann

发明人： Hans Nickel ,  Thomas Schuster ,  Michael Wissmann

IPC分类号： F02P5/15 ,  F02P9/00

CPC分类号： F02P5/1502 ,  F02P9/005 ,  Y02T10/46

摘要： The invention is directed to an ignition circuit for an internal combustion engine in a portable handheld work apparatus wherein a work tool is driven via a clutch. The ignition circuit includes an ignition time point control which connects a spark plug via a switch to a voltage source in order to trigger an ignition spark. The spark plug is mounted in the combustion chamber of the engine. This connection takes place in dependence upon the crankshaft angle and the rpm of the engine. In order to prevent damage to the clutch because of a blocked work tool, a test value counter driven via a rpm gate circuit is provided. The test value counter increments its value in the pregiven rpm window of the gate circuit with each rotation of the crankshaft and the content of the test value counter is compared to a pregiven limit value by a comparator. The output of the comparator activates a rpm-reducing protective circuit and the output of the comparator indicates reaching or exceeding the limit value.

摘要翻译： 本发明涉及一种便携式手持式工作装置中用于内燃机的点火电路，其中通过离合器驱动作业工具。 点火电路包括点火时间点控制，其通过开关将火花塞连接到电压源以触发点火火花。 火花塞安装在发动机的燃烧室中。 这种连接取决于发动机的曲轴角度和转速。 为了防止由于工作工具被堵塞而对离合器造成损坏，提供了通过rpm门电路驱动的测试值计数器。 测试值计数器在曲轴的每次旋转时增加门电路的预定转速窗口中的值，并通过比较器将测试值计数器的内容与预定极限值进行比较。 比较器的输出启动减速保护电路，比较器的输出指示达到或超过极限值。

公开(公告)号：US4936267A

公开(公告)日：1990-06-26

申请号：US267847

申请日：1988-11-07

申请人： Reinhard Gerhardy ,  Michael Wissmann

发明人： Reinhard Gerhardy ,  Michael Wissmann

IPC分类号： F02M1/16 ,  F02M17/04

CPC分类号： F02M17/04 ,  F02M1/16 ,  Y10S261/08 ,  Y10S261/68

摘要： The invention relates to a carburetor for an internal combustion engine and especially for a portable small engine. The carburetor includes a carburetor housing defining an intake pipe and a control chamber which communicates with the intake pipe via intake channels. A fuel-feed line which is closable by an inlet valve opens into the control chamber. The inlet valve includes a valve seat formed in the fuel-feed line and a valve body mounted on a positioning lever which is connected to a membrane defining a wall of the control chamber. The positioning lever can be pivotally actuated to open the inlet valve to admit fuel into the control chamber. An actuating lever is pivotally mounted on the carburetor housing and can be pivoted from a rest position to an active position whereat the actuating lever applies a force against the membrane to displace the latter and pivotally actuate the positioning lever to immediately open the inlet valve when starting the engine.

摘要翻译： 本发明涉及一种用于内燃机，特别是便携式小型发动机的化油器。 化油器包括限定进气管的化油器壳体和通过进气通道与进气管连通的控制室。 通过入口阀关闭的燃料供给管线通向控制室。 入口阀包括形成在燃料供给管线中的阀座和安装在定位杆上的阀体，定位杆连接到限定控制室的壁的膜。 定位杆可以被枢转地驱动以打开入口阀，以将燃料引入控制室。 驱动杆枢转地安装在化油器壳体上，并且可以从静止位置枢转到主动位置，在该位置，致动杆向膜施加力以使其移动，并且枢转地致动定位杆，以在起动时立即打开入口阀 引擎。

公开(公告)号：US4709669A

公开(公告)日：1987-12-01

申请号：US907045

申请日：1986-09-12

申请人： Michael Wissmann ,  Jurgen Weber ,  Hans Nickel

发明人： Michael Wissmann ,  Jurgen Weber ,  Hans Nickel

IPC分类号： F02P15/00 ,  B27B17/08 ,  F02B63/02 ,  F02B75/02 ,  F02P1/02 ,  F02P3/00

CPC分类号： F02P1/02 ,  F02B63/02 ,  F02B2075/025 ,  F02B2075/027

摘要： The invention is directed to an ignition arrangement for an internal combustion engine of a handheld portable tool such as a chain saw or the like. The engine has a crankshaft and a fan wheel is seated on the crankshaft for rotation therewith. The ignition arrangement includes a permanent magnet. The magnet has two pole shoes and an exciter coil is mounted on the permanent magnet. The permanent magnet equipped in this way is fixedly mounted on the tool to save weight. A relatively light self-supporting annular member with projections is mounted in the fan wheel. The projections of the annular member and the permanent magnet with its pole shoes conjointly define a magnetic circuit. As the projections pass the pole shoes at a minimal spacing therefrom during operation of the engine, the projections alternately open and close the magnetic circuit thereby causing changes in the flux of this circuit. The flux changes cause a voltage to be inducted in the exciter coil which serves to generate the igniting spark via an appropriate electronic circuit.

摘要翻译： 本发明涉及一种用于诸如链锯等手持便携式工具的内燃机的点火装置。 发动机具有曲轴并且风扇轮座落在曲轴上以与其一起转动。 点火装置包括永磁体。 磁铁具有两个极靴，励磁线圈安装在永磁体上。 以这种方式配备的永磁体固定安装在工具上以节省重量。 具有突起的相对轻的自支撑环形构件安装在风扇轮中。 环形构件和永磁体与其极靴的突起共同限定了磁路。 由于在发动机运转期间突起以极小的间隔通过极靴，所以突起交替地打开和关闭磁路，从而引起该电路的通量的变化。 磁通变化导致在激励器线圈中感应出电压，该电压用于通过适当的电子电路产生点火火花。

公开(公告)号：US4672929A

公开(公告)日：1987-06-16

申请号：US809013

申请日：1985-12-13

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 start position the choke flap is coupled with the throttle flap in a position-dependent manner and the choke flap holds the throttle flap in a position between the full-throttle position and the idle position. The choke flap is brought into an at-rest position via an actuating device which is actuable in dependence upon the operating condition of the engine. The choke flap is decoupled from the throttle flap in the at-rest position.

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，本发明提供了在起始位置中，扼流圈与节气门瓣以位置相关的方式联接，扼流圈将节气门瓣保持在位置 在全节气门位置和空转位置之间。 扼流圈通过致动装置进入静止位置，该致动装置可根据发动机的操作状态而致动。 扼流圈在静止位置与节气门瓣分离。