公开(公告)号：US20170314510A1

公开(公告)日：2017-11-02

申请号：US15520540

申请日：2015-11-05

Applicant: WALBRO LLC

Inventor： Takashi ABEI ,  Naoya KUMAGAI

IPC: F02M17/34 ,  F02M37/04 ,  F02M37/12 ,  F04B43/06

CPC classification number: F02M17/34 ,  F02M7/08 ,  F02M17/04 ,  F02M37/046 ,  F02M37/12 ,  F04B43/06

Abstract: In at least some implementations, a carburetor includes a body, a fuel pump diaphragm and a pressure pulse passage. The fuel pump diaphragm is carried by the body and defines in part a fuel chamber on one side of the fuel pump diaphragm and a pressure pulse chamber on the other side of the fuel pump diaphragm. The pressure pulse passage communicates the pressure pulse chamber with a pressure pulse source to provide pressure pulses in the pressure pulse chamber to actuate the fuel pump diaphragm. The pressure pulse passage includes an inlet communicating with a passage in which pressure pulses are present and the inlet is spaced from a surface defining the passage in which pressure pulses are present.

公开(公告)号：US09222440B2

公开(公告)日：2015-12-29

申请号：US13862675

申请日：2013-04-15

Applicant: Qian Chen

Inventor： Qian Chen ,  Yongcheng Jia

IPC: F02M7/00 ,  F02M1/08 ,  F02M1/10 ,  F02M7/087 ,  F02M17/04 ,  F02M1/16 ,  F02M7/08

CPC classification number: F02M1/08 ,  F02M1/10 ,  F02M1/16 ,  F02M7/00 ,  F02M7/08 ,  F02M7/083 ,  F02M7/087 ,  F02M17/04

Abstract: A one-step starting carburetor system includes a body, a middle body, a fuel inlet pipe, a fuel outlet pipe, a lower cover and a temperature controller which is connected to the lower cover. The fuel inlet pipe pumps fuel from an oiler through the pipe. The fuel outlet pipe connects with an oil pumping unit through a pipe. The body connects with a pulse generator through a pipe, wherein the pulse generator comprises a pulse generating chamber, a cover, and a solenoid valve.

Abstract translation: 一步式起始化油器系统包括连接到下盖的主体，中间体，燃料入口管，燃料出口管，下盖和温度控制器。 燃油进口管通过管道从油员泵送燃料。 燃油出口管通过管道与抽油机连接。 身体通过管道与脉冲发生器连接，其中脉冲发生器包括脉冲发生室，盖子和电磁阀。

公开(公告)号：US20100294248A1

公开(公告)日：2010-11-25

申请号：US12662766

申请日：2010-05-03

Applicant: Korehito Kawase

Inventor： Korehito Kawase

IPC: F02M37/04

CPC classification number: F02M7/08

Abstract: In the carburetor 1A with the acceleration pump of the present embodiment, when a plunger 16 is stopped at the position of a top dead center in a cylinder 10 and the acceleration pump mechanism is not operated as in an idle operation or the like, a gap w having a predetermined width is formed between the tip of a rod 14A and a rod abutment face 16a of the plunger 16, whereby an operational error generated in a link system which transmits the opening/closing operation of a throttle valve to the rod is eliminated through this gap.

Abstract translation: 在具有本实施方式的加速泵的化油器1A中，当柱塞16停止在气缸10中的上止点位置并且加速泵机构不像空转动作等那样动作时， 具有预定宽度的w形成在杆14A的尖端和柱塞16的杆抵接面16a之间，从而消除了将节流阀的打开/关闭操作传递到杆的连杆系统中产生的操作误差 通过这个差距。

公开(公告)号：US20080054498A1

公开(公告)日：2008-03-06

申请号：US11870863

申请日：2007-10-11

Applicant: Simon Lewis

Inventor： Simon Lewis

IPC: F02M11/00

CPC classification number: F02M7/08

Abstract: An accelerator pump cover is provided. The accelerator pump cover includes a body having a cavity for receiving fuel, a first passageway for allowing passage of fuel into the cavity, a second passageway for allowing passage of fuel out of the cavity, and an adjustable member at least partially disposed within a portion of at least one of the first passageway and the second passageway.

Abstract translation: 提供一个加速泵盖。 加速器泵盖包括具有用于接收燃料的空腔的本体，用于允许燃料进入空腔的第一通道，用于允许燃料从空腔通过的第二通道，以及可调节构件，其至少部分地设置在一部分内 的第一通道和第二通道中的至少一个。

公开(公告)号：US07210672B2

公开(公告)日：2007-05-01

申请号：US11218429

申请日：2005-09-06

Applicant: Takashi Ishii

Inventor： Takashi Ishii

IPC: F02M7/08

CPC classification number: F02M7/08

Abstract: An accelerated fuel passage of an accelerator pump operatively connected with a throttle shaft having a throttle valve. The accelerated fuel passage is connected to an upstream side of a needle orifice, which orifice is coupled to a main nozzle. Consequently, the fuel is discharged by the accelerator pump into an area before the needle orifice. By the addition of a one-way check valve system in a fuel pick up at a metering chamber for a fuel circuit, the fuel driven by the accelerator pump piston is discharged to a venturi tube of an intake passage through the main nozzle. A self pumping effect caused by an engine pulsation is dampened or eliminated by the needle orifice. Further, a check valve is provided within a fuel pick up at a metering chamber for a fuel circuit, whereby the fuel driven by the accelerator pump piston is discharged to a venturi tube through a main nozzle without returning to the fixed fuel chamber.

Abstract translation: 与具有节流阀的节流轴可操作地连接的加速器泵的加速燃料通道。 加速燃料通道连接到针孔的上游侧，该孔连接到主喷嘴。 因此，燃料由加速泵排出到针孔前的区域。 通过在用于燃料回路的计量室处的燃料拾取器中添加单向止回阀系统，由加速器泵活塞驱动的燃料被排出到通过主喷嘴的进气通道的文丘里管。 由发动机脉动引起的自泵送效应被针孔抑制或消除。 此外，在用于燃料回路的计量室内的燃料拾取器内设置止回阀，由此由加速器泵活塞驱动的燃料通过主喷嘴排出到文丘里管而不返回到固定燃料室。

公开(公告)号：US20070063357A1

公开(公告)日：2007-03-22

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：US07172178B1

公开(公告)日：2007-02-06

申请号：US10996962

申请日：2004-11-24

Applicant: David D. Hacker

Inventor： David D. Hacker

IPC: F02M7/08

CPC classification number: F02M7/08

Abstract: A combustion engine carburetor with a fuel-and-air mixing passage extending through a body and a float bowl engaged sealably to the body. A vacuum actuated acceleration fuel pump is preferably carried by the float bowl and has a hose-less vacuum channel communicating between the fuel-and-air mixing passage downstream of a throttle valve and a vacuum chamber of the acceleration pump. A hose-less fuel discharge channel communicates between a supplemental fuel chamber of the acceleration pump and the fuel-and-air mixing passage between a venturi and a choke valve in the mixing passage. Preferably, the fuel discharge channel has an injecting bore portion defined by the body and being angled to direct fuel in a downstream direction toward the venturi to promote mixing with air.

Abstract translation: 具有延伸穿过主体的燃料和空气混合通道的燃烧发动机化油器和可密封地接合到主体的浮球。 真空致动的加速燃料泵优选地由浮筒携带，并且具有在节气门下游的燃料和空气混合通道与加速泵的真空室之间连通的无软管真空通道。 无胶管燃料排放通道在加速泵的辅助燃料室与混合通道中的文氏管和阻流阀之间的燃料和空气混合通道之间连通。 优选地，燃料排放通道具有由主体限定的注入孔部分并且成角度以将燃料沿下游方向引向文丘里管以促进与空气的混合。

公开(公告)号：US20060208367A1

公开(公告)日：2006-09-21

申请号：US11422738

申请日：2006-06-07

Applicant: Edward Brazina

Inventor： Edward 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：US20040130040A1

公开(公告)日：2004-07-08

申请号：US10652828

申请日：2003-08-28

Applicant: ZAMA JAPAN

Inventor： Satoru Araki

IPC: F02M007/08

CPC classification number: F02M7/08 ,  F02M17/04

Abstract: An accelerator for a carburetor that is linked to a throttle valve and allows a piston-type accelerator pump to be operated in a simple configuration that dispenses with a link mechanism and does not greatly enlarge the carburetor. The lower surface of a throttle valve lever 10 is provided with a cam 33 that has a circular shape centered about a throttle valve stem 8 and is configured such that the cam surface 33A thereof faces a carburetor main body 1. An accelerator pump 25 is placed parallel to the throttle valve stem 8 and the upper end of a piston rod 28 thereof is brought into contact with the cam surface 33A. The cam 33 pushes the piston rod 28 down as the throttle valve lever 10 swings in the opening direction of the throttle valve, and the acceleration fuel in the pump chamber 29 is delivered and supplied to the suction channel 2.

Abstract translation: 一种与节流阀连接的化油器的加速器，并且允许活塞式加速泵以简单的结构操作，省去了连杆机构，并且不会大大地扩大化油器。 节流阀杆10的下表面设置有以节流阀杆8为中心的圆形形状的凸轮33，并且构造成使得其凸轮面33A面向化油器主体1.加速器泵25 平行于节流阀杆8并且其活塞杆28的上端与凸轮表面33A接触。 当节气门杆10在节流阀的打开方向上摆动时，凸轮33向下推动活塞杆28，并且泵室29中的加速燃料被输送并提供给抽吸通道2。

公开(公告)号：US06676114B2

公开(公告)日：2004-01-13

申请号：US10131723

申请日：2002-04-23

Applicant: Reinhard Gerhardy

Inventor： Reinhard Gerhardy

IPC: F02M708

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。