公开(公告)号：US20140306358A1

公开(公告)日：2014-10-16

申请号：US14230687

申请日：2014-03-31

Applicant: WALBRO ENGINE MANAGEMENT, L.L.C.

Inventor： Paul S. Learman ,  Larry D. Whittaker

IPC: F02M19/02

CPC classification number: F02M19/021 ,  B01F3/04 ,  F02M7/08 ,  F02M7/083 ,  F02M17/04

Abstract: In at least one implementation a carburetor includes an intake bore with a port opening into the intake bore, a fuel chamber from which fuel is supplied to the intake bore, and an accelerator device including a fuel reservoir. A fuel flow control valve is provided between the fuel chamber and the port to control the flow rate of fuel to the port and at least one passage communicates the fuel reservoir with the port and fuel in the fuel reservoir is supplied to the port therethrough. The passage also communicates the fuel reservoir with the fuel chamber. The fuel flow control valve is located between the fuel reservoir and the port and between the fuel chamber and the port, and the passage includes a portion extending between the fuel reservoir and the fuel chamber independently of the fuel flow control valve.

Abstract translation: 在至少一个实施方式中，化油器包括具有通向进气孔的入口的进气孔，燃料被供给到进气孔的燃料室和包括燃料储存器的加速装置。 燃料流量控制阀设置在燃料室和端口之间，以控制到端口的燃料的流量，并且至少一个通道将燃料储存器与端口连通，并且燃料储存器中的燃料被供应到通过其的端口。 通道还将燃料储存器与燃料室连通。 燃料流量控制阀位于燃料储存器和端口之间以及燃料室和端口之间，并且通道包括独立于燃料流量控制阀在燃料箱和燃料室之间延伸的部分。

公开(公告)号：US20100193166A1

公开(公告)日：2010-08-05

申请号：US12440360

申请日：2007-09-06

Applicant: Ryou Ono

Inventor： Ryou Ono

IPC: F28F13/00

CPC classification number: F02M7/08 ,  F02M15/06 ,  F02M17/34

Abstract: An insulator is provided with a housing section integrated with an insulating section at a lower portion thereof. The housing section forms a part of a housing of an acceleration pump. Accordingly, the acceleration pump can be disposed at a space around the insulator, which is conventionally a dead space. Thus, a dedicated space for installing the acceleration pump is not required, which achieves space saving. Further, since the acceleration pump is disposed directly around the insulating section, even when a duct that intercommunicates an insulator leading-air passage and the acceleration pump is used, the length of the duct can be reduced to simplify a structure of the interconnection. Furthermore, since the housing section is integrated with the insulating section, the number of components can be reduced to reduce costs and facilitate assembly of the acceleration pump.

Abstract translation: 绝缘体设置有与绝缘部分在其下部集成的壳体部分。 壳体部分形成加速泵壳体的一部分。 因此，加速泵可以设置在绝缘体周围的空间中，这通常是死空间。 因此，不需要用于安装加速泵的专用空间，这节省了空间。 此外，由于加速泵直接配置在绝缘部的周围，所以即使使用绝缘体引导空气通路与加速泵相通的管道，也可以减小管道的长度，简化互连结构。 此外，由于壳体部与绝缘部一体化，所以可以减少部件数量，降低成本，便于组装加速泵。

公开(公告)号：US07484717B2

公开(公告)日：2009-02-03

申请号：US11422738

申请日：2006-06-07

Applicant: Edward A. Brazina

Inventor： Edward A. Brazina

IPC: F02M7/08

CPC classification number: F02M7/08 ,  F02M5/14 ,  F02M11/02 ,  F02M13/046 ,  F02M17/02 ,  F02M17/04 ,  F02M23/09 ,  Y02T10/146 ,  Y10S261/19 ,  Y10S261/67

Abstract: An accelerator pump cap for an accelerator pump assembly of a carburetor, such as a motorcycle or ATV carburetor, has a cap body with a base and a sidewall projecting from the base defining a fuel chamber within the cap body beneath an open top. Preferably, one or more ports extend through the sidewall closely-spaced to the open top of the cap body to ensure that any vapor or gas residing within the fuel chamber is flushed out of the fuel chamber through the port or ports when the accelerator pump assembly is actuated to supply fuel to the carburetor. Accelerator pump assemblies and the use of a separate collector ring within an accelerator pump cap are also provided.

Abstract translation: 用于化油器（例如摩托车或ATV化油器）的加速器泵组件的加速器泵盖具有盖体，其具有基部和从基部突出的侧壁，该顶盖在开口顶部下方限定在盖体内的燃料室。 优选地，一个或多个端口延伸通过与盖体的开口顶部紧密间隔的侧壁，以确保当加速器泵组件（3）上时，通过端口将位于燃料室内的任何蒸气或气体冲出燃料室 被致动以向燃料化油器供应燃料。 还提供了加速器泵组件和在加速器泵盖内使用单独的集电环。

公开(公告)号：US07472892B2

公开(公告)日：2009-01-06

申请号：US11489763

申请日：2006-07-20

Applicant: Andreas Paa

Inventor： Andreas Paa

IPC: F02M7/08

CPC classification number: F02M7/08 ,  Y10S261/81

Abstract: A carburetor of an internal combustion engine for operating a manually-guided implement, including an intake channel having a venturi section for combustion air, a fuel channel that opens into the intake channel via a fuel opening, and an accelerator pump that is in flow-conducting communication with the fuel opening. During operation of the carburetor, the fuel channel is adapted to have fuel flow continuously therethrough. The fuel channel is guided through a pump chamber of the accelerator pump.

Abstract translation: 一种用于操作手动导向工具的内燃机的化油器，包括具有用于燃烧空气的文氏管部分的进气通道，经由燃料开口而进入进气通道的燃料通道，以及处于流动状态的加速器泵， 与燃油开口进行通讯。 在化油器操作期间，燃料通道适于使燃料流连续地通过其中。 燃料通道被引导通过加速泵的泵室。

公开(公告)号：US07364138B2

公开(公告)日：2008-04-29

申请号：US11698140

申请日：2007-01-26

Applicant: André Prager

Inventor： André Prager

IPC: F02M7/08

CPC classification number: F02M17/04 ,  F02M7/08

Abstract: A membrane carburetor (1) has a control chamber (13) which is connected via at least one fuel opening (9, 10) to an intake channel (3). The control chamber (13) is delimited by a control membrane (14). A fuel line (54) opens into the control chamber (13) via an inlet valve (15). The inlet valve (15) opens in dependence upon the deflection of the control membrane (14). The membrane carburetor (1) has an acceleration pump (30) which is actuated in dependence upon the position of a throttle element held in the intake channel (3). A good acceleration enrichment and a stable running of the internal combustion engine are achieved when the acceleration pump (30) operates hydraulically on at least one actuating member in the control chamber (13).

Abstract translation: 膜化油器（1）具有经由至少一个燃料开口（9,10）连接到进气通道（3）的控制室（13）。 控制室（13）由控制膜（14）限定。 燃料管线（54）经由入口阀（15）进入控制室（13）。 入口阀（15）根据控制膜（14）的偏转而打开。 膜化油器（1）具有加速泵（30），该加速泵根据保持在进气通道（3）中的节流元件的位置被致动。 当加速泵（30）在控制室（13）中的至少一个致动构件上液压地操作时，实现内燃机的良好的加速度富集和稳定的运行。

公开(公告)号：US20070182032A1

公开(公告)日：2007-08-09

申请号：US11698140

申请日：2007-01-26

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02M69/02

CPC classification number: F02M17/04 ,  F02M7/08

Abstract: A membrane carburetor (1) has a control chamber (13) which is connected via at least one fuel opening (9, 10) to an intake channel (3). The control chamber (13) is delimited by a control membrane (14). A fuel line (54) opens into the control chamber (13) via an inlet valve (15). The inlet valve (15) opens in dependence upon the deflection of the control membrane (14). The membrane carburetor (1) has an acceleration pump (30) which is actuated in dependence upon the position of a throttle element held in the intake channel (3). A good acceleration enrichment and a stable running of the internal combustion engine are achieved when the acceleration pump (30) operates hydraulically on at least one actuating member in the control chamber (13).

Abstract translation: 膜化油器（1）具有经由至少一个燃料开口（9,10）连接到进气通道（3）的控制室（13）。 控制室（13）由控制膜（14）限定。 燃料管线（54）经由入口阀（15）进入控制室（13）。 入口阀（15）根据控制膜（14）的偏转而打开。 膜化油器（1）具有加速泵（30），该加速泵根据保持在进气通道（3）中的节流元件的位置被致动。 当加速泵（30）在控制室（13）中的至少一个致动构件上液压地操作时，实现内燃机的良好的加速度富集和稳定的运行。

公开(公告)号：US07216856B2

公开(公告)日：2007-05-15

申请号：US11229722

申请日：2005-09-20

Applicant: Yoshiharu Iwasa ,  Mamoru Toda

Inventor： Yoshiharu Iwasa ,  Mamoru Toda

IPC: F02M7/08

CPC classification number: F02M7/08

Abstract: The accelerator apparatus prevents air from remaining within a pump chamber and discharged fuel vapor from causing a pumping effect so as to a destabilize engine operation and increase of an exhaust gas content of harmful material, in an accelerator apparatus in which an accelerated fuel passage draws and discharges fuel to the pump chamber of an accelerator pump, which is connected to a main fuel passage. The pump chamber of the accelerator pump is mechanically coupled with a throttle valve and is connected to a fixed fuel chamber storing a fuel delivered to an intake passage at a fixed pressure by the accelerated fuel passage. Air remaining within the pump chamber and a fuel vapor generated within the pump chamber are discharged to the fixed fuel chamber, and fuel extruded from the pump chamber due to a pumping effect of the remaining air and the fuel vapor enters into the fixed fuel chamber, thereby preventing the alteration of a rate of the fuel flowing through a main fuel passage. Fuel in the pump chamber is fed to the fixed fuel chamber during acceleration so as to increase a pressure in the fixed fuel chamber, and an accelerated fuel is obtained by increasing the amount of the delivered fuel to the intake passage.

Abstract translation: 加速器装置在加速燃料通道抽吸的加速器装置中防止空气残留在泵室内并且排出的燃料蒸汽不引起泵送效应，从而使发动机运转不稳定和有害物质的废气含量增加， 将燃料排放到与主燃料通道连接的加速器泵的泵室。 加速器泵的泵室与节流阀机械联接，并且连接到固定燃料室，该固定燃料室存储通过加速燃料通道以固定压力输送到进气通道的燃料。 在泵室内残留的空气和在泵室内产生的燃料蒸气被排放到固定燃料室，并且由于剩余空气和燃料蒸气的泵送效应而从泵室挤出的燃料进入固定燃料室， 从而防止流过主燃料通道的燃料的速率的变化。 在加速期间，泵室中的燃料被供给到固定燃料室，以便增加固定燃料室中的压力，并且通过增加输送到进气通道的燃料的量来获得加速的燃料。

公开(公告)号：US20050051912A1

公开(公告)日：2005-03-10

申请号：US10937363

申请日：2004-09-10

Applicant: Konrad Knaus ,  Andreas Hagele

Inventor： Konrad Knaus ,  Andreas Hagele

IPC: F02M7/08 ,  B01D47/00 ,  F02M69/02

CPC classification number: F02M7/08

Abstract: The invention relates to a carburetor arrangement of a portable handheld work apparatus and includes a carburetor (1), an accelerator pump (2) and a venting pump (3). The venting pump (3) acts on the accelerator pump (2) via a venting line (4). A check valve (5) is mounted in the venting line (4) in such a manner that its outlet end (6) is directed in the direction of the venting pump (3). A pretensioning device (7) is provided which holds a valve body (8) of the check valve (5) closed below a selected difference pressure between the outflow end (6) and an opposite-lying inflow end (9). A support device (10) which acts on the valve body (8) and is actuable, at one end, by pressure at the outflow end (6) without considering pressure at the other end (9) or by pressure on the inflow end (9) without considering the pressure on the other end (6).

Abstract translation: 本发明涉及便携式手持式工作装置的化油器装置，包括化油器（1），加速器泵（2）和排气泵（3）。 排气泵（3）通过排气管（4）作用在加速泵（2）上。 止回阀（5）以使其出口端（6）朝向排气泵（3）的方向的方式安装在排气管线（4）中。 提供一种预张紧装置（7），其将止回阀（5）的阀体（8）保持在流出端（6）和相对的流入端（9）之间的选定差压之下。 一个支撑装置（10），其作用在阀体（8）上，并且在一端通过流出端（6）处的压力可启动，而不考虑另一端（9）处的压力或流入端（9）上的压力 9）不考虑另一端的压力（6）。

公开(公告)号：US20040256744A1

公开(公告)日：2004-12-23

申请号：US10871058

申请日：2004-06-21

Inventor： Klaus Geyer ,  Arno Kinnen ,  Jan Borchardt ,  Reinhard Gerhardy

IPC: F02M069/02 ,  B01D047/00

CPC classification number: F02M7/08 ,  F02M17/04 ,  F02M69/02 ,  Y10S261/37

Abstract: A carburetor for an internal combustion engine includes an intake channel section (2) as well as a throttle element journalled in the intake channel section (2). The throttle element is adjustable between a full-load position (25) and an idle position (26). A pump (20, 30) is provided for additional fuel metering and this pump includes a pumping chamber (24, 34) and a pump piston (21, 31) guided in the pumping chamber (24, 34). The position of the pump piston (21, 31) is coupled to the position of the throttle element. To ensure an optimal supply of the internal combustion engine with fuel in each operating state, the pump piston (21, 31) is so coupled to the throttle element that fuel is pumped from the pumping chamber (24, 34) into the intake channel section (2) when there is a displacement of the throttle element from the full throttle position (25) into the idle position (26).

Abstract translation: 用于内燃机的化油器包括进气通道部分（2）以及安装在进气通道部分（2）中的节流元件。 节流元件可在满载位置（25）和空转位置（26）之间调节。 提供泵（20,30）以用于额外的燃料计量，并且该泵包括在泵送室（24,34）中引导的泵送室（24,34）和泵活塞（21,31）。 泵活塞（21,31）的位置联接到节流元件的位置。 为了确保在每个操作状态下具有燃料的内燃机的最佳供应，泵活塞（21,31）如此联接到节流元件，燃料从泵送室（24,34）泵送到进气通道部分 （2）当节气门元件从全节气门位置（25）移动到空转位置（26）时。

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。