公开(公告)号：US09677506B2

公开(公告)日：2017-06-13

申请号：US14423611

申请日：2013-09-25

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

Inventor： Scott D. Bostian ,  Matthew A. Braun ,  Gary J. Burns

IPC: F02M7/00 ,  F02M17/04 ,  F02M7/08 ,  F02M1/16 ,  B01F3/04 ,  B01F15/04

CPC classification number: F02M17/04 ,  B01F3/04985 ,  B01F15/0479 ,  B01F2215/0086 ,  F02M1/16 ,  F02M7/00 ,  F02M7/08

Abstract: A carburetor provides a supplemental fuel supply to an engine and includes a body, a fuel metering diaphragm and a fluid pump. The fuel metering diaphragm defines part of a fuel metering chamber and a reference chamber and has at least a portion that is movable relative to the body to increase and decrease the volume of the fuel metering chamber to control fuel flow in the fuel metering chamber. The fluid pump is carried by the carburetor or another component upstream of the carburetor and has an outlet in fluid communication with the metering reference chamber and an actuator arranged to discharge fluid through the outlet to increase the pressure within the metering reference chamber and thereby increase the fuel flow rate from the fuel metering chamber to the air-fuel passage to provide a supplemental fuel supply to the engine.

公开(公告)号：US20160273467A1

公开(公告)日：2016-09-22

申请号：US14442379

申请日：2013-11-13

Applicant: HITACHI KOKI CO., LTD.

Inventor： Yoshikazu KAWANO ,  Junichi KAMIMURA ,  Takuhiro MURAKAMI

IPC: F02D41/06 ,  F02B63/02 ,  F02M37/00 ,  F02D41/30 ,  F02M1/16

CPC classification number: F02D41/062 ,  F02B63/02 ,  F02D41/3005 ,  F02D41/34 ,  F02D2400/06 ,  F02M1/046 ,  F02M1/16 ,  F02M3/045 ,  F02M7/133 ,  F02M35/10216 ,  F02M37/007 ,  F02M37/0076 ,  Y02T10/44

Abstract: A cost of an engine working machine is suppressed, and startability of an engine is improved. In an engine working machine for driving a working tool by using an engine including: a fuel tank; a carburetor for supplying air-fuel mixture of fuel supplied from the fuel tank and air into a cylinder; a cylinder in which a piston is reciprocatable; and a crank case that holds the cylinder and forms a crank chamber, the engine working machine is provided with: an additional fuel supplying unit for supplying fuel to the engine separately from the carburetor; and a control unit for controlling an operation of the additional fuel supplying unit separately from supply of start-up fuel.

Abstract translation: 抑制发动机工作机的成本，提高发动机的起动性。 在用于通过使用发动机驱动作业工具的发动机工作机中，所述发动机包括：燃料箱; 用于将从燃料箱供给的燃料和空气的空气混合物供应到气缸中的化油器; 活塞可往复运动的气缸; 以及保持气缸并形成曲柄室的曲轴箱，所述发动机工作机设置有用于向所述发动机与所述化油器分开供给燃料的附加燃料供给单元; 以及控制单元，用于与提供启动燃料分开地控制附加燃料供应单元的操作。

公开(公告)号：US20150136252A1

公开(公告)日：2015-05-21

申请号：US14548163

申请日：2014-11-19

Applicant: Andreas Stihl AG & Co. KG

Inventor： Robert Feulner ,  Harald Buehner ,  Ricardo Hojczyk ,  Tobias Bernhard

IPC: F02M37/04 ,  F02M37/00

CPC classification number: F02M37/046 ,  F02B63/02 ,  F02M1/16 ,  F02M37/0011 ,  F02M37/0023 ,  F02M37/007 ,  F02M37/16 ,  F02M37/18 ,  F04B9/14 ,  Y10T137/85986

Abstract: A handheld work apparatus has a fuel supply system and a pump for delivering fuel from the fuel supply system. The pump has an elastic pump bellows which can be actuated by the operator. The pump bellows has a fastening section at which the pump bellows is fastened to a housing. The pump bellows has a main section and a roof section, wherein the roof section has a dome-shaped section adjoining the main section and a cap which adjoins the dome-shaped section and closes off the dome-shaped section. In order to achieve a rapid return of the pump bellows from the actuated position into the unactuated position, even at low temperatures, it is provided that the smallest wall thickness (g) of the main section is at least 10% greater than the smallest wall thickness (h) of the dome-shaped section.

Abstract translation: 手持式工作装置具有燃料供给系统和用于从燃料供应系统输送燃料的泵。 泵具有可由操作者致动的弹性泵波纹管。 泵波纹管具有紧固部分，泵波纹管紧固在壳体上。 泵波纹管具有主部分和顶部部分，其中顶部部分具有邻接主部分的圆顶形部分和邻接圆顶形部分并封闭圆顶形部分的盖子。 为了实现泵波纹管从致动位置快速返回到未致动位置，即使在低温下，主要部分的最小壁厚（g）比最小壁大至少10％ 圆顶形部分的厚度（h）。

公开(公告)号：US20140216402A1

公开(公告)日：2014-08-07

申请号：US14108383

申请日：2013-12-17

Applicant: Andreas Stihl AG & Co. KG

Inventor： Kai Oppenländer ,  Antonio Fattorusso ,  Jörg Amann ,  Arne Götzel

IPC: F02B63/02 ,  F02M17/16

CPC classification number: F02B63/02 ,  F02B2075/025 ,  F02D9/16 ,  F02M1/16 ,  F02M3/10 ,  F02M9/085 ,  F02M17/04 ,  F02M17/16 ,  F02M23/03 ,  F02M35/1019 ,  F02M35/108

Abstract: A carburetor for a hand-guided power tool has a carburetor housing and a carburetor rotor supported rotatably in the carburetor housing about an axis of rotation. A needle is disposed on the carburetor rotor and projects into a fuel opening of the carburetor. An adjusting element is operatively connected to the needle so as adjust a position of the needle relative to the carburetor rotor. The adjusting element has an engagement contour that is to be engaged by a tool for adjusting the adjusting element. A securing contour that is fixedly connected to the carburetor rotor is provided. The securing contour, at any point of the securing contour, has a spacing to the axis of rotation of at least approximately 10 mm.

Abstract translation: 用于手动引导的电动工具的化油器具有化油器壳体和化油器转子，所述化油器壳体和化油器转子围绕旋转轴线可旋转地支撑在化油器壳体中。 在化油器转子上设有一个针头并突出到化油器的燃料口中。 调节元件可操作地连接到针上，以便调节针头相对于化油器转子的位置。 调节元件具有接合轮廓，该啮合轮廓将由用于调节调节元件的工具接合。 提供固定连接到化油器转子的固定轮廓。 固定轮廓在固定轮廓的任意位置具有至少大约10mm的旋转轴的间隔。

公开(公告)号：US08579265B1

公开(公告)日：2013-11-12

申请号：US13677313

申请日：2012-11-15

Applicant: Qian Chen

Inventor： Qian Chen

IPC: F02M1/04

CPC classification number: F02M1/02 ,  F02M1/16

Abstract: A simple start ratchet-type carburetor includes a carburetor body, an inlet tube communicated with the carburetor body for forming a fuel passage, a fuel passage of a measuring room, a main fuel supply cavity molded integrally with the carburetor body comprising a choke subassembly, a venturi, and a throttle subassembly. The end of the throttle shaft protruding from the carburetor body provides a first pawl, a second pawl and a hand cranking block, the two pawls are mounted on one end of the throttle shaft by a fastener, the hand cranking block is mounted on the other end, the end of the choke shaft protruding from the carburetor body provides a first ratchet and a second ratchet. An air removing device drives the ratchets to rotate the choke shaft which controls the opening or closing of a shut-off valve device. The carburetor can control precisely the fuel amount.

Abstract translation: 简单的起动棘轮式化油器包括化油器主体，与化油器主体连通以形成燃料通道的入口管，测量室的燃料通道，与包括扼流圈子组件的化油器本体一体模制的主燃料供给腔， 文丘里管和节流阀组件。 从化油器主体突出的节流轴的端部提供第一棘爪，第二棘爪和手动起动块，两个棘爪通过紧固件安装在节流轴的一端，手动起动块安装在另一个上 从化油器主体突出的阻塞轴的端部提供第一棘轮和第二棘轮。 排气装置驱动棘轮以旋转阻塞轴，其控制关闭阀装置的打开或关闭。 化油器可以精确控制燃油量。

公开(公告)号：US20120055450A1

公开(公告)日：2012-03-08

申请号：US13189295

申请日：2011-07-22

Applicant: Hideki Watanabe ,  Tamotsu Saito

Inventor： Hideki Watanabe ,  Tamotsu Saito

IPC: F02M37/06

CPC classification number: F02M1/16 ,  F02M17/04 ,  F02M37/16

Abstract: A starting device for feeding a quantity of fuel from the fixed-quantity fuel chamber to an intake passage during start-up having a manually operated primary pump for suctioning/pumping fuel and arranged on a fuel introduction path connected along a fuel-feeding path; and a fixed-quantity fuel chamber for temporarily storing fuel delivered from the primary pump. An internal wall of the fixed-quantity fuel chamber undergoes elastic displacement, allowing its internal capacity to expand/shrink within a predetermined range; the fixed-quantity fuel chamber is connected to a fuel delivery path that communicates with the intake passage side and has a manually operated open/close valve; the valve is opened in a state in which, due to the primary pump being operated, the fixed-quantity fuel chamber is filled with a predetermined quantity of fuel while enlarging its internal capacity, whereby it shrinks due to an elastic contraction force and the fuel.

Abstract translation: 一种启动装置，用于在起动期间将一定数量的燃料从固定数量的燃料室供给到进气通道，其具有用于抽吸/泵送燃料的手动操作的主泵，并布置在沿着燃料供给路径连接的燃料导入路径上; 以及用于临时储存从主泵输送的燃料的固定数量的燃料室。 固定数量燃料室的内壁经历弹性位移，使其内部容量在预定范围内膨胀/收缩; 固定数量的燃料室连接到与进气通道侧连通并具有手动开/关阀的燃料输送路径; 在由于初级泵被操作而使定量燃料室充满预定量的燃料同时扩大其内部容量的状态下打开阀门，由此由于弹性收缩力而使其收缩，并且燃料 。

公开(公告)号：US20120042844A1

公开(公告)日：2012-02-23

申请号：US12860863

申请日：2010-08-21

Applicant: K. C. CHIANG

Inventor： K. C. CHIANG

IPC: F02M37/16

CPC classification number: F02M37/16 ,  F02M1/16

Abstract: A handheld primer bulb structure includes an outer layer, an inner layer, an intermediate layer and a chamber. The outer layer is made of a thermoplastic elastic material and has the configuration of a spherical body. The inner layer is made of a fluoroplastic material (fluorocarbon polymer) and disposed on an inner face of the outer layer. The intermediate layer is disposed between the outer layer and the inner layer for affixing the inner layer and the outer layer to each other. The chamber is surrounded and defined by the outer layer and the inner layer and the intermediate layer and has two openings.

Abstract translation: 手持底漆灯泡结构包括外层，内层，中间层和室。 外层由热塑性弹性材料制成，具有球体的构造。 内层由氟塑料（氟碳聚合物）制成，并设置在外层的内表面上。 中间层设置在外层和内层之间，用于将内层和外层彼此粘合。 该室由外层和内层和中间层包围和限定，并具有两个开口。

公开(公告)号：US20090184433A1

公开(公告)日：2009-07-23

申请号：US12018001

申请日：2008-01-22

Applicant: Russell J. Dopke ,  Benji J. Bink ,  Dale D. Snyder

Inventor： Russell J. Dopke ,  Benji J. Bink ,  Dale D. Snyder

IPC: F02M35/10 ,  F02M1/16 ,  B23P17/00 ,  C10J3/30

CPC classification number: F02M1/16 ,  F02M35/10032 ,  F02M35/10144 ,  F02M35/1017 ,  F02M35/10196 ,  Y10S55/28 ,  Y10S261/08 ,  Y10T29/49826

Abstract: An air intake component and assembly, as well as an associated carburetor assembly and related method of assembly, are disclose. In at least some embodiments, the intake component includes a surface capable of being coupled at least indirectly to a carburetor assembly, where the surface includes first and second orifices, a first channel capable of communicating engine intake air from a first location to the first orifice of the surface, and a second channel by which at least one of the first location and a second location is connected to the second orifice. The second channel is capable of communicating at least one of a primer air pressure pulse from the at least one location to the second orifice and fuel fumes from the second orifice to the at least one location. In at least some further embodiments, the intake component can be fitted with any of several interchangeable covers.

Abstract translation: 公开了进气部件和组件，以及相关的化油器组件和相关的组装方法。 在至少一些实施例中，进气部件包括能够至少间接地联接到化油器组件的表面，其中表面包括第一和第二孔，第一通道能够将发动机进气从第一位置连通到第一孔 以及第二通道，第一位置和第二位置中的至少一个连接到第二孔口。 第二通道能够将来自至少一个位置的底漆气压脉冲和至少一个位置中的至少一个传递到第二孔口，并且燃料从第二孔口喷射到至少一个位置。 在至少一些另外的实施例中，进气部件可以装配有几个可互换盖中的任何一个。

公开(公告)号：US07185623B2

公开(公告)日：2007-03-06

申请号：US10887152

申请日：2004-07-07

Applicant: Scott R. Shaw

Inventor： Scott R. Shaw

IPC: F02M1/16

CPC classification number: F02M1/16

Abstract: A carburetor start pump circuit, for starting an engine has an auxiliary fuel pump mounted on a relatively standard carburetor body, a start pulse passage extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side which extends from a metering chamber of the carburetor body to the auxiliary fuel pump and a discharge side which is interconnected to the intake side and extends from the auxiliary fuel pump to a throttle bore in the air intake of the carburetor body. To prevent the engine from stalling, a restriction jet is placed within the start pulse passage to prevent the auxiliary fuel pump from discharging fuel into the throttling bore when the engine transmits pulses at high frequencies.

Abstract translation: 用于启动发动机的化油器启动泵回路具有安装在相对标准化油器主体上的辅助燃料泵，延伸穿过化油器主体到辅助燃料泵的启动脉冲通道，以及燃料回路，其具有从一个 化油器主体的计量室到辅助燃料泵，以及排放侧，其与吸入侧互连并从辅助燃料泵延伸到化油器主体的进气口中的节流孔。 为了防止发动机停转，在起动脉冲通道内设置限流喷射器，以防止当发动机以高频率发射脉冲时辅助燃料泵将燃料排放到节流孔中。

公开(公告)号：US20050224039A1

公开(公告)日：2005-10-13

申请号：US10821067

申请日：2004-04-08

Applicant: Paul Warfel ,  Rodney Tynes

Inventor： Paul Warfel ,  Rodney Tynes

IPC: B23D57/02 ,  B27B17/00 ,  F02B63/02 ,  F02M1/02 ,  F02M1/16 ,  F02M35/024 ,  F02M35/04 ,  F02P15/00 ,  F23Q3/00 ,  F02B77/00 ,  F02N17/00

CPC classification number: F02M35/04 ,  F02M1/16

Abstract: The cooperative operational relationship among an ignition switch, choke mechanism and air filter unit for a portable power tool are integrated in a way to improve that relationship. The ignition switch and choke mechanism are arranged in a coactive relationship wherein the ignition switch and a choke lever in the choke mechanism have engaging parts such that the ignition switch is moved to an “On” position by the choke lever when the choke lever is moved to a position where it has reduced the air flow to a carburetor. A spring engaging the ignition switch is biased for applying a force to the ignition switch in a direction toward a mounting element on which the ignition switch is mounted and away from the choke lever. In a particular embodiment, the ignition switch is mounted on the air filter unit.

Abstract translation: 用于便携式电动工具的点火开关，节流阀机构和空气过滤器单元之间的协作操作关系集成在一起以改善该关系。 点火开关和阻风门机构以共同关系布置，其中扼流器机构中的点火开关和扼流杆具有接合部分，使得当扼流杆移动时点火开关被扼流杆移动到“开”位置 到达已经减少到化油器的空气流的位置。 接合点火开关的弹簧偏压，以朝向安装点火开关的安装元件的方向向点火开关施加力并且远离阻风杆。 在特定实施例中，点火开关安装在空气过滤器单元上。