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    Two-stroke engine
    2.
    发明授权
    Two-stroke engine 失效
    二冲程发动机

    公开(公告)号：US06932032B2

    公开(公告)日：2005-08-23

    申请号：US10986115

    申请日：2004-11-12

    申请人： Andreas Lingen ,  Matthias Hehnke ,  Joachim Baumhauer ,  Andreas Bähner ,  Michael Joos ,  Axel Klimmek ,  Hans Holderle

    发明人： Andreas Lingen ,  Matthias Hehnke ,  Joachim Baumhauer ,  Andreas Bähner ,  Michael Joos ,  Axel Klimmek ,  Hans Holderle

    IPC分类号： F02B25/20 ,  F02B33/04 ,  F02B63/02 ,  F02B75/02 ,  F02D9/02 ,  F02M35/108

    CPC分类号： F02D9/109 ,  F02B25/20 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02D2009/0279 ,  F02M35/1019 ,  F02M35/108

    摘要： A two-stroke engine (1) has a combustion chamber (3) disposed in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5). The piston (5) drives a crankshaft (7) via a connecting rod (6) and the crankshaft (7) is rotatably journalled in a crankcase (4). The two-stroke engine (1) has an intake channel (8) for the supply of fuel into the crankcase (4), an outlet (13) for exhaust gases from the combustion chamber (3) and an air channel (10) for the supply of substantially fuel-free air. A throttle element (18) is mounted in the air channel (10). At pregiven positions of the piston (5), the crankcase (4) is connected via at least one transfer channel (14) to the combustion chamber (3). In order to prevent air from being drawn by suction into the air channel because of leakages during idle or at low rpm, a fluid connection is provided between the air channel (10) downstream of the throttle element (18) and the crankcase (4) for underpressure compensation which connection is present at least partially for a position of the piston from 90° ahead of bottom dead center to 90° after bottom dead center. A connection between the crankcase (4) and the intake channel (8) can be provided in lieu of, or in addition to, the connection to the air channel (10).

    摘要翻译： 二冲程发动机（1）具有设置在气缸（2）中的燃烧室（3）。 燃烧室（3）由往复活塞（5）限定。 活塞（5）通过连杆（6）驱动曲轴（7），曲轴（7）可旋转地支承在曲轴箱（4）中。 二冲程发动机（1）具有用于向曲轴箱（4）供应燃料的进气通道（8），用于来自燃烧室（3）的废气的出口（13）和用于 供应基本上无燃料的空气。 节流元件（18）安装在空气通道（10）中。 在活塞（5）的预制位置，曲轴箱（4）经由至少一个输送通道（14）连接到燃烧室（3）。 为了防止由于怠速或低转速下的泄漏而吸入空气而吸入空气，在节气门元件（18）下游的空气通道（10）和曲轴箱（4）之间设有流体连接， 对于负压补偿，至少部分地将活塞的位置从下死点之前90°至下死点之后的90°存在。 可以提供曲轴箱（4）和进气通道（8）之间的连接来代替或除了与空气通道（10）的连接。

    Starting mechanism
    3.
    发明授权
    Starting mechanism 失效
    启动机制

    公开(公告)号：US06505616B2

    公开(公告)日：2003-01-14

    申请号：US09757024

    申请日：2001-01-08

    申请人： Matthias Hehnke

    发明人： Matthias Hehnke

    IPC分类号： F02M2310

    CPC分类号： F02M23/10 ,  F02M1/02 ,  F02M3/06 ,  F02M17/04 ,  Y02T10/146

    摘要： A starting mechanism is provided for an internal combustion engine, and includes a diaphragm carburetor. A butterfly valve is disposed in the intake channel of the carburetor and has a pivot range into which at least one fuel nozzle opens. A starter valve is disposed in the intake channel upstream of a Venturi section thereof. A by-pass conduit is provided for additional air supply when the starter valve is closed, and branches off upstream thereof and opens out into a fuel/air mixture path downstream thereof. The control element determines the rate of air flow in the by-pass conduit, and is adjusted by a temperature sensor that is disposed directly on the internal combustion engine.

    摘要翻译： 提供了一种用于内燃机的启动机构，并且包括隔膜式化油器。 蝶阀设置在化油器的进气通道中，并具有至少一个燃料喷嘴打开的枢轴范围。 起动阀设置在其文丘里部分上游的进气通道中。 当起动阀关闭时，提供旁通管道用于附加空气供应，并且在其上游分支并向下游敞开的燃料/空气混合物路径中。 控制元件确定旁通管道中的气流速率，并且通过直接设置在内燃机上的温度传感器进行调节。