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。

公开(公告)号：US20050098124A1

公开(公告)日：2005-05-12

申请号：US10986115

申请日：2004-11-12

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

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

IPC分类号： F02B25/20 ,  F02B33/04 ,  F02B63/02 ,  F02B75/02 ,  F02D9/02 ,  F02M35/108 ,  F02M1/00

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).

公开(公告)号：US06149139A

公开(公告)日：2000-11-21

申请号：US217835

申请日：1998-12-22

申请人： Hans Holderle

发明人： Hans Holderle

IPC分类号： F02B63/02 ,  F02B75/02 ,  F02M17/04 ,  F02M19/02 ,  F02M19/03

CPC分类号： F02M19/0221 ,  F02M17/04 ,  F02M19/03 ,  F02B2075/025 ,  F02B2075/027 ,  F02B63/02 ,  Y10S261/39 ,  Y10S261/68 ,  Y10T137/7909

摘要： The invention relates to a membrane carburetor for an internal combustion engine in a portable handheld work apparatus such as a motor-driven chain saw. A throttle flap is arranged in the intake channel for the combustion air. The throttle flap is pivotally journalled downstream of a venturi section of the intake channel. A main nozzle for supplying fuel from a fuel-filled control chamber of the carburetor is provided in the region of the venturi section. The control chamber is delimited by a membrane which actuates a control valve controlling the fuel inflow into the control chamber. The main nozzle includes a check valve which includes a valve seat with a valve platelet assigned thereto. In order to avoid a dripping of the main nozzle even under unfavorable operating conditions, a sieve platelet is provided which effects an additional capillary sealing of the main nozzle during idle. The sieve platelet substantially completely covers the outlet cross section of the main nozzle downstream of the check valve.

摘要翻译： 本发明涉及一种便携式手持式工作装置如电动链锯的内燃机的膜式化油器。 用于燃烧空气的进气通道中设有节流阀。 节气门瓣在进气通道的文氏管部分的下游枢轴旋转。 在文丘里管部分的区域设置有用于从燃料填充的化油器控制室供应燃料的主喷嘴。 控制室由膜驱动，该膜致动控制阀来控制进入控制室的燃料。 主喷嘴包括止回阀，其包括具有分配给其的血小板的阀座。 为了避免在不利的操作条件下主喷嘴的滴落，提供了一个在空闲期间对主喷嘴进行附加毛细管密封的筛板。 筛板基本上完全覆盖止回阀下游的主喷嘴的出口横截面。

公开(公告)号：US06293981B1

公开(公告)日：2001-09-25

申请号：US09548631

申请日：2000-04-13

申请人： Hans Holderle ,  Stefan Kummermehr ,  Johannes Menzel ,  Helmut Zimmermann ,  Bernd Knödler ,  Horst Denner

发明人： Hans Holderle ,  Stefan Kummermehr ,  Johannes Menzel ,  Helmut Zimmermann ,  Bernd Knödler ,  Horst Denner

IPC分类号： B01D3530

CPC分类号： F02M35/024 ,  F02B63/02 ,  F02B2075/025 ,  F02B2075/027 ,  F02M17/04 ,  Y10S55/28

摘要： The invention is directed to an arrangement of an air filter (1) and a membrane carburetor (2). The membrane carburetor (2) has an intake channel section (3) configured in the carburetor housing (4) and fuel-conducting channels (6) open into the intake channel section (3). The channels (6) are supplied from a fuel-filled control chamber (7) which is configured in the carburetor housing (4). The control chamber (7) is partitioned from a compensation chamber (11) via a control membrane (10). The compensation chamber (11) communicates with the housing (14, 16) of the air filter (1) via a compensation channel (13) downstream of an air filter element (39). The air filter housing (14) engages over the membrane carburetor (2) essentially on the side of the compensation chamber (11) and the clean chamber (24) of the air filter housing (14) communicates with the intake channel section via a connecting stub (37) which lies approximately at right angles to the intake channel section (3). The connecting stub (37) is used as a connection between the clean chamber (24) of the air filter (1) and a flow space (26) mounted forward of the intake channel section (3) in order to ensure a reliable compensation where available space is tight. The volume of the flow space (26) is greater than the volume of the connecting stub (37) and the compensation channel (13) branches away from the flow space (26).

摘要翻译： 本发明涉及一种空气过滤器（1）和膜式化油器（2）的布置。 膜化油器（2）具有构造在化油器壳体（4）中的进气通道部分（3）和通向进气通道部分（3）的燃料传导通道（6）。 通道（6）由配置在化油器壳体（4）中的燃料填充控制室（7）供给。 控制室（7）经由控制膜（10）与补偿室（11）分隔开。 补偿室（11）通过空气过滤元件（39）下游的补偿通道（13）与空气过滤器（1）的壳体（14,16）连通。 空气过滤器壳体（14）基本上在补偿室（11）的侧面上接合在膜化油器（2）上，并且空气过滤器壳体（14）的清洁室（24）通过连接 短柱（37）大致与进气通道部分（3）成直角。 连接短管（37）用作空气过滤器（1）的清洁室（24）和安装在进气通道部分（3）前方的流动空间（26）之间的连接，以确保可靠的补偿 可用空间紧张。 流动空间（26）的容积大于连接短管（37）的体积，并且补偿通道（13）远离流动空间（26）分支。

公开(公告)号：US4903655A

公开(公告)日：1990-02-27

申请号：US354749

申请日：1989-05-22

申请人： Werner Vonderau ,  Hans Holderle ,  Armin Speckens ,  Jurgen Wolf ,  Roger Simons

发明人： Werner Vonderau ,  Hans Holderle ,  Armin Speckens ,  Jurgen Wolf ,  Roger Simons

IPC分类号： B27B17/00 ,  F02B63/02 ,  F02B75/02 ,  F02M3/02 ,  F02M17/04 ,  F02M37/00 ,  F02M37/12

CPC分类号： F02M17/04 ,  F02M3/02 ,  F02M37/12 ,  F02B2075/025 ,  F02B63/02 ,  Y10S123/05

摘要： The invention is directed to a membrane fuel pump for an internal combustion engine equipped with a membrane carburetor. The engine is that of a working apparatus and especially a handheld portable tool such as a motor-driven chain saw or the like. The membrane pump includes a drive chamber charged with the pressure inside the crankcase of the engine and a pump chamber separated from the drive chamber by a membrane. The pump chamber is connected at its suction end to a fuel tank via a first check valve and is connected to a pressure controller of the membrane carburetor at its pressure end via a second check valve. The pressure end of the membrane pump is connected with the suction end thereof via a bypass and a throttle is mounted in this bypass. With the throttle bypass between the pressure end and the suction end, the pumped volume is reduced at idle and the pump pressure is smoothed. Disturbances at the membrane carburetor are avoided.

摘要翻译： 本发明涉及一种配备有膜化油器的内燃机的膜式燃料泵。 发动机是工作装置，特别是手持式便携式工具，例如电动链锯等。 膜泵包括驱动室，其充满发动机曲轴箱内部的压力，以及通过膜与驱动室分离的泵室。 泵室在其吸入端通过第一止回阀连接到燃料箱，并通过第二止回阀在其压力端连接到膜式化油器的压力控制器。 膜泵的压力端通过旁路与其吸入端连接，并且在该旁路中安装节流阀。 通过在压力端和吸入端之间的节气门旁路，泵送的体积在怠速时减小，泵的压力平滑。 避免膜化油器的干扰。

公开(公告)号：US4861522A

公开(公告)日：1989-08-29

申请号：US189129

申请日：1988-05-02

申请人： Reinhard Gerhardy ,  Hans Holderle ,  Jurgen Wolf ,  Werner Vonderau

发明人： Reinhard Gerhardy ,  Hans Holderle ,  Jurgen Wolf ,  Werner Vonderau

IPC分类号： F02M3/02 ,  F02M7/12 ,  F02M17/04

CPC分类号： F02M3/02 ,  F02M17/04 ,  Y10S261/68 ,  Y10T137/86847

摘要： Disturbances can occur in handheld portable tools driven by internal combustion engines because the idle-nozzle system and the main-nozzle system influence each other. The carburetor of the invention prevents this disturbing influence and provides a control of the engine which is proportional to speed. The carburetor includes a control member which closes off the main nozzle during idle operation and the idle nozzle during operation under load in dependence upon the position of the throttle flap.

摘要翻译： 由内燃机驱动的手持便携式工具可能会发生干扰，因为怠速喷嘴系统和主喷嘴系统相互影响。 本发明的化油器防止这种干扰的影响并提供与速度成比例的发动机的控制。 化油器包括控制构件，该控制构件根据节气门瓣的位置在空载操作期间封闭主喷嘴和负载操作期间的怠速喷嘴。

公开(公告)号：US4711225A

公开(公告)日：1987-12-08

申请号：US20670

申请日：1987-03-02

申请人： Hans Holderle ,  Jurgen Wolf ,  Horst Eckhart ,  Werner Vonderau

发明人： Hans Holderle ,  Jurgen Wolf ,  Horst Eckhart ,  Werner Vonderau

IPC分类号： F02B63/02 ,  F02B75/02 ,  F02M29/14 ,  F02M35/10 ,  F02M29/00

CPC分类号： F02M35/10078 ,  F02B63/02 ,  F02M29/14 ,  F02M35/10032 ,  F02M35/1017 ,  F02M35/10262 ,  F02M35/10281 ,  F02B2075/025 ,  F02B2075/027 ,  Y02T10/146

摘要： A connecting piece interconnects the carburetor and combustion chamber of an internal combustion engine. The fuel-air mixture produced in the carburetor flows to the combustion chamber through the connecting piece in a primary flow direction. A plurality of closely spaced protrusions are provided on the inner wall of the connecting piece and these protrusions are disposed one behind the other and are offset from one another in the primary flow direction of the fuel-air mixture such that the formation of axially parallel channels is avoided. This embodiment prevents the fuel film deposited on the inner wall of the connecting piece from being completely aspirated all at once into the combustion chamber, which would cause a severe overenrichment of the mixture and hence a drop in rpm. Because of the many protrusions, the fuel film that is deposited tears off in the smallest possible pieces when being aspirated, so that only small parts of this film ever reach the combustion chamber at the same time. Fluctuations in the idling rpm are considerably lessened with a connecting piece configured in this manner.

摘要翻译： 连接件连接内燃机的化油器和燃烧室。 在化油器中产生的燃料 - 空气混合物通过连接件在主流动方向上流到燃烧室。 多个紧密间隔的突起设置在连接件的内壁上，并且这些突起一个接一个地设置，并且在燃料 - 空气混合物的主流动方向上彼此偏移，使得形成轴向平行的通道 被避免。 该实施例防止沉积在连接件的内壁上的燃料膜全部被全部吸入燃烧室，这将导致混合物严重渗透，因此转速降低。 由于许多突起，被吸附时所沉积的燃料膜以最小可能的碎片撕裂，使得该薄膜的仅少部分同时到达燃烧室。 以这种方式配置的连接件，怠速转速的波动大大降低。