公开(公告)号：US20040070088A1

公开(公告)日：2004-04-15

申请号：US10625373

申请日：2003-07-23

Applicant: Andreas Stihl AG & Co. KG

Inventor： Gerhard Osburg ,  Jochen Gantert ,  Reinhard Gerhardy

IPC: F02M037/00 ,  B01D047/00

CPC classification number: F02M17/04 ,  F02M1/02 ,  F02M1/16 ,  Y10S261/68

Abstract: A carburetor arrangement for an internal combustion engine in a manually guided implement, such as a power chainsaw, a cut-off machine, etc. is provided. A regulating chamber delimited by a regulating diaphragm is provided. Upon deflection of the diaphragm due to underpressure in the regulating chamber, the latter is connected with a fuel tank. Via at least one nozzle, the regulating chamber opens into an air channel that supplies fuel/air mixture to the engine. The carburetor arrangement includes a scavenging pump that is disposed in a return line from the regulating chamber to the fuel tank, and in which is formed a pump chamber. The scavenging pump serves to completely fill the regulating chamber with fuel before start-up of the engine. To prevent the fuel/air mixture from becoming too lean after start-up, especially upon opening of the choke valve, a supply line is provided from the pump chamber into the air channel and supplies additional fuel to the air channel during the run-up phase.

Abstract translation: 提供了一种用于手动导向工具中的内燃机的化油器装置，例如电力电锯，切断机等。 提供由调节膜限定的调节室。 在隔膜由于调节室内的负压而偏转时，后者与燃料箱连接。 通过至少一个喷嘴，调节室通向供应燃料/空气混合物的空气通道。 化油器装置包括清扫泵，其设置在从调节室到燃料箱的返回管线中，并且其中形成有泵室。 清扫泵用于在发动机起动之前用燃料完全填充调节室。 为了防止燃料/空气混合物在起动之后变得太瘦，特别是在打开节流阀时，从泵室向空气通道提供供应管线，并且在起动期间向空气通道提供额外的燃料 相。

公开(公告)号：US20040012102A1

公开(公告)日：2004-01-22

申请号：US10622060

申请日：2003-07-17

Applicant: Andreas Stihl AG & Co. KG

Inventor： Reinhard Gerhardy

IPC: F02M001/00

CPC classification number: F02M35/1017 ,  F02B25/14 ,  F02B25/20 ,  F02B25/22 ,  F02B33/04 ,  F02B33/28 ,  F02M1/16 ,  F02M13/046 ,  F02M19/081 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/108

Abstract: A carburetor, especially for the internal combustion engine in a motor-driven implement, is provided. Formed in the carburetor is an intake channel that has at least one partition extending in the direction of the longitudinal axis of the intake channel. The partition divides the intake channel into at least one air channel and at least one mixture channel. At least one fuel nozzle opens into the mixture channel. Pivotably mounted in the intake channel is a butterfly valve. To obtain a favorable starting and acceleration condition, with reduced exhaust gas values in the full throttle range, the butterfly valve is provided with at least two sections that are moveable relative to one another.

Abstract translation: 提供了一种化油器，特别是用于电动机具的内燃机。 在化油器中形成有进气通道，其具有在进气通道的纵向轴线方向上延伸的至少一个隔板。 分隔器将进气通道分成至少一个空气通道和至少一个混合通道。 至少一个燃料喷嘴通向混合通道。 可旋转地安装在进气通道中是一个蝶阀。 为了获得有利的启动和加速条件，在全节气门范围内减少废气值，蝶阀设置有至少两个相对于彼此可移动的部分。

公开(公告)号：US20040035394A1

公开(公告)日：2004-02-26

申请号：US10641868

申请日：2003-08-15

Applicant: Andreas Stihl AG & Co. KG

Inventor： Reinhard Gerhardy

IPC: F02D011/04

CPC classification number: F02D11/04 ,  F02B25/14 ,  F02B63/02 ,  F02B2075/025 ,  F02D2009/0262 ,  F02D2009/0272 ,  Y10T74/18184

Abstract: An operating mechanism is provided and has an operating lever, an adjusting lever, and a valve element that is rotatably disposed in a channel, wherein the adjusting lever is connected with the valve element via a shaft. A coupling element is provided for interconnecting the positions of the operating lever and the adjusting lever. The distance of the pivot axis of the adjusting lever from a connection of the coupling element with the adjusting lever is variable as a function of the position of the adjusting lever.

Abstract translation: 提供了一种操作机构，并具有操作杆，调节杆和可旋转地设置在通道中的阀元件，其中调节杆通过轴与阀元件连接。 提供耦合元件用于互连操作杆和调节杆的位置。 调节杆的枢转轴线与联接元件与调节杆的连接的距离随调节杆的位置而变化。

公开(公告)号：US20040051186A1

公开(公告)日：2004-03-18

申请号：US10659841

申请日：2003-09-11

Applicant: Andreas Stihl AG & Co., KG

Inventor： Reinhard Gerhardy ,  Klaus Geyer

IPC: F02M001/00

CPC classification number: F02D9/1045 ,  F02B63/02 ,  F02D9/1025 ,  F02D9/109 ,  F02D2009/0272 ,  F02M13/046 ,  F02M17/09 ,  Y10S261/01

Abstract: An intake device having an intake channel that includes an intake channel section is provided. A butterfly valve is pivotably mounted in the intake channel section. A dividing wall is disposed downstream of the butterfly valve and divides the intake channel section into an air duct and a mixture duct. The air duct has a flow cross-section that is greater than the flow cross-section of the mixture duct. A fuel jet opens into the mixture duct.

Abstract translation: 提供具有进气通道的进气装置，该进气通道包括进气通道部分。 蝶阀可枢转地安装在进气通道部分中。 分隔壁设置在蝶阀的下游，并将进气通道部分分成空气管道和混合管道。 空气管道具有大于混合管道的流动横截面的流动横截面。 燃料喷射器通向混合管道。

公开(公告)号：US20020027299A1

公开(公告)日：2002-03-07

申请号：US09948346

申请日：2001-09-06

Applicant: Reinhard Gerhardy to Andreas Stihl AG & Co.,

Inventor： Reinhard Gerhardy

IPC: F02M001/00

CPC classification number: F02M3/10 ,  F02M19/04 ,  Y10S261/38

Abstract: A carburetor for an internal combustion engine is provided and includes at least one adjusting screw disposed in a housing for regulating the fuel/air mixture. The adjusting screw is screwed into a bore of the carburetor housing. The adjusting screw is embodied as a cheese head screw, whereby one end of the screw is provided with two slots that are cross-shaped relative to one another and extend over the diameter of the cheese head screw.

Abstract translation: 提供了一种用于内燃机的化油器，并且包括设置在用于调节燃料/空气混合物的壳体中的至少一个调节螺钉。 调节螺钉拧入化油器外壳的孔中。 调节螺钉被实施为奶酪头螺钉，由此螺钉的一端设置有两个彼此相交并且在奶酪头螺钉的直径上延伸的狭槽。

公开(公告)号：US20020163087A1

公开(公告)日：2002-11-07

申请号：US10131723

申请日：2002-04-23

Applicant: Stihl AG& Co.

Inventor： Reinhard Gerhardy

IPC: F02M007/093

CPC classification number: F02M7/08

Abstract: A carburetor arrangement is provided for an internal combustion engine of a manually guided implement, and includes a carburetor that is embodied in particular as a diaphragm carburetor. A butterfly valve is pivotably mounted in an air channel that is disposed in the carburetor and leads to the internal combustion engine. Also provided is an accelerator pump that includes a pump chamber and an accelerator piston that is guided in the pump chamber. The accelerator piston is coupled with the butterfly valve. The pump chamber can be connected with a fuel tank via a pump line. A first pressure-controlled check valve is provided in the pump line.

Abstract translation: 本发明提供一种用于手动导向工具的内燃机的化油器装置，并且包括特别体现为隔膜式化油器的化油器。 蝶阀可枢转地安装在设置在化油器中并通向内燃机的空气通道中。 还提供了一种加速器泵，其包括在泵室中被引导的泵室和加速器活塞。 加速器活塞与蝶阀相连。 泵室可以通过泵管线与燃油箱连接。 在泵管线上设置有第一压力控制止回阀。

公开(公告)号：US20020158349A1

公开(公告)日：2002-10-31

申请号：US10127496

申请日：2002-04-23

Applicant: Andreas Stihl AG & Co.

Inventor： Gerhard Osburg ,  Wolfgang Luithardt ,  Peter Schmidt ,  Reinhard Gerhardy

IPC: F02M007/08 ,  F02M017/04

CPC classification number: F02M7/08 ,  F02B63/02 ,  F02M17/04 ,  F02M37/16 ,  F02M37/20 ,  Y10S261/08 ,  Y10S261/68

Abstract: A membrane carburetor for an internal combustion in a portable handheld work apparatus includes a control chamber (3) delimited by a membrane (2). The control chamber (3) is connected via a feed line (4) to a fuel tank (5). The feed line (4) is cleared via a valve body (6) when there is a deflection of the membrane (2) because of an underpressure in the control chamber (3). The control chamber (3) is connected to an air channel (10) via at least one fuel nozzle (7) and at least one ancillary chamber (9). The air channel (10) passes through the membrane carburetor (1) and leads to the internal combustion engine. A purge pump (11) is provided in a fuel line (12) connecting the control chamber (3) to the fuel tank (5). The fuel path between the control chamber (3) and the purge pump (11) is guided through at least one ancillary chamber (9).

Abstract translation: 用于便携式手持式工作装置中的内燃的膜式化油器包括由膜（2）限定的控制室（3）。 控制室（3）经由进料管线（4）连接到燃料箱（5）。 当由于控制室（3）中的负压而存在膜（2）的偏转时，馈送线（4）通过阀体（6）被清除。 控制室（3）经由至少一个燃料喷嘴（7）和至少一个辅助室（9）连接到空气通道（10）。 空气通道（10）通过膜化油器（1）并通向内燃机。 在将控制室（3）连接到燃料箱（5）的燃料管路（12）中设置有净化泵（11）。 控制室（3）和净化泵（11）之间的燃料路径被引导通过至少一个辅助室（9）。