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公开(公告)号：US5517977A
公开(公告)日：1996-05-21
申请号：US306882
申请日：1994-09-15
Applicant: Hiroshi Nakai , Akihiko Hoshiba , Yasuhiko Shibata
Inventor： Hiroshi Nakai , Akihiko Hoshiba , Yasuhiko Shibata
CPC classification number: F02M1/10 , F02B61/045 , F02M13/025 , F02M13/026 , F02M7/08
Abstract: A mounting arrangement for an accelerator pump and a choke actuation mechanism, which are used in conjunction with a plurality of charge formers, minimizes the girth of the engine while making these components more accessible and easing assembly. An actuator and a choke solenoid of the choke actuation system are mounted proximate to one another and partially between adjacent induction pipes of an induction system. This position allows these components to be located on an exterior side of the induction system without interfering with the protective cowling of the motor. The accelerator pump is mounted at the end of a series of charge formers, proximate to a throttle linkage which controls throttling devices of the charge formers. This position of the accelerator pump eases the installation of this component without increasing the girth of the engine.
Abstract translation: 与多个电荷成形器结合使用的用于加速器泵和扼流器致动机构的安装装置使得发动机的周长最小化，同时使这些部件更容易接近并且易于组装。 扼流器致动系统的致动器和扼流圈螺线管彼此靠近并且部分地安装在感应系统的相邻感应管之间。 该位置允许这些组件位于感应系统的外侧，而不会干扰电机的保护罩。 加速泵安装在一系列充电成型机的末端，靠近控制充电成型机的节流装置的节流联动装置。 加速器泵的这个位置可以减轻该部件的安装，而不会增加发动机的周长。
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62.发明授权Rotor-type carburetor with improved fuel scavenging and atomization apparatus and methods 失效具有改进的燃料清除和雾化装置和方法的转子式化油器
公开(公告)号：US4937018A
公开(公告)日：1990-06-26
申请号：US220666
申请日：1988-07-18
Applicant: Rudolf Diener
Inventor： Rudolf Diener
CPC classification number: F02M7/08 , F02D35/0053 , F02D35/0069 , F02M1/16 , F02M17/16 , F02M69/06 , F02M7/133 , F02B1/04 , Y10S261/55
Abstract: A rotor-type carburetor is provided with a specially designed spray ring which centrifugally discharges atomized fuel droplets in two different sizes for mixture with engine-ingested air traversing the interior of the carburetor and driving its rotor section. Larger droplets are forced outwardly through an annular series of discharge openings formed in the ring, while smaller droplets are formed by the passage of fuel over an annular spray edge extending around the bottom of a radially inwardly bent lower end portion of the ring. This simultaneous formation and discharge of two series of differently sized atomized fuel droplets improves the overall performance of the engine and reduces the level of its emission pollutants. The spray ring also functions to automatically vary, in a predetermined manner, the flow rate relationship between the differently sized fuel droplets as a function of engine speed to further enhance engine performance. The carburetor is also provided with a capillary action fuel scavenging system which functions to capture fuel centrifugally discharged from the spray ring during rotor spin-down periods to prevent the undesirable delivery of fuel to the engine during such periods. Fuel captured by the scavenging system is returned to the engine fuel supply system.
Abstract translation: 转子式化油器设置有专门设计的喷射环，其以两种不同的尺寸离心喷射雾化的燃料液滴，以便混合发动机摄入的空气穿过化油器的内部并驱动其转子部分。 较大的液滴被迫向外通过形成在环中的环形排放开口，而较小的液滴通过燃料通过围绕环的径向向内弯曲的下端部分的底部延伸的环形喷雾边缘而形成。 两个不同尺寸的雾化燃料液滴的同时形成和排放改善了发动机的整体性能并降低了其排放污染物的水平。 喷雾环还用于以预定的方式自动地改变作为发动机转速的函数的不同尺寸的燃料液滴之间的流量关系，以进一步增强发动机性能。 化油器还设置有毛细作用燃料清除系统，其功能是在转子旋转停止期间捕集从喷雾环离心排出的燃料，以防止在这样的时段期间燃料不期望地发送到发动机。 由清扫系统捕获的燃料返回到发动机燃料供应系统。
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公开(公告)号：US4869850A
公开(公告)日：1989-09-26
申请号：US142302
申请日：1987-12-29
Applicant: Elbert M. Hubbard , Rudolf Diener
Inventor： Elbert M. Hubbard , Rudolf Diener
CPC classification number: F02M7/133 , F02D35/0053 , F02D35/0069 , F02M1/16 , F02M17/16 , F02M69/06 , F02M7/08 , F02B1/04 , Y10S261/21 , Y10S261/57 , Y10S261/61
Abstract: An improved rotor-type carburetor for use with an internal combustion engine is provided which, in one embodiment, is adjustable to selectively vary its constant fuel-air ratio by axially moving an internal body portion thereof relative to the turbine rotor assembly of the carburetor. Alternatively, the constant fuel-air ratio of the carburetor may be altered simply by replacing such internal body portion with a differently configured one. Undesirable fuel delivery from the turbine rotor to the engine during turbine spin-down is significantly diminished through the use of an internal fuel reservoir structure, formed within the carburetor body, which functions to capture and retain unneeded fuel discharged from the rotor during turbine spin-down periods. During turbine spin-up periods (e.g., when the engine is being started) the reservoir-retained fuel is released into the engine's incoming air stream to hasten fuel delivery to the engiune during initial portions of turbine spin-up periods. Additionally, various structural improvements are incorporated into the carburetor. Included in these improvements are a carburetor body construction in which three generally annular sections are telescopingly interengaged to form the outer body of the carburetor, and the provision of improved sealing structures to better inhibit fuel leakage from the turbine rotor assembly.
Abstract translation: 提供了一种用于内燃机的改进的转子式化油器，其在一个实施例中是可调节的，以通过相对于化油器的涡轮转子组件轴向移动其恒定的本体部分来选择性地改变其恒定的燃料空气比。 或者，化油器的恒定的燃料空气比可以简单地通过用不同的构造来代替这样的内部主体部分来改变。 通过使用在化油器主体内形成的内部燃料储存结构，可以显着减少在涡轮转速下从涡轮机转子到发动机的不良燃料输送，其功能是捕捉和保留在涡轮旋转期间从转子排出的不需要的燃料， 下降期 在涡轮机启动期间（例如，当发动机正在启动时），储存器保持的燃料被释放到发动机进入的空气流中，以加速在涡轮机启动期间的初始部分期间向燃油输送的燃料。 此外，各种结构改进被并入化油器。 在这些改进中包括的化油器体结构，其中三个大体上环形的部分可伸缩地相互接合以形成化油器的外部主体，并且提供改进的密封结构以更好地抑制燃料从涡轮转子组件泄漏。
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公开(公告)号：US4671220A
公开(公告)日：1987-06-09
申请号：US751685
申请日：1985-07-03
Applicant: Seiji Inoue , Hidekazu Takayasu
Inventor： Seiji Inoue , Hidekazu Takayasu
Abstract: Several embodiments of charge forming devices including improved accelerating pumps wherein the discharge of fuel from the accelerating pump is extended in time through the use of an accumulator chamber. In addition, the accelerating pump has an upstream and downstream discharge port. The accumulator chamber is also adapted to discharge fuel into the induction passage during extreme deceleration so as to improve engine running and prevent stalling under these circumstances.
Abstract translation: 电荷形成装置的几个实施例包括改进的加速泵，其中来自加速泵的燃料的排出在时间上通过使用蓄能器室而延长。 此外，加速泵具有上游和下游排出口。 蓄能器室还适于在极端减速期间将燃料排放到进气通道中，从而改善发动机运行并防止在这种情况下的停车。
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公开(公告)号：US4534913A
公开(公告)日：1985-08-13
申请号：US572805
申请日：1984-01-23
Applicant: John G. Bathe
Inventor： John G. Bathe
CPC classification number: F02M7/087
Abstract: Apparatus (1) for use with a carburetor (C) to control the discharge volume from the carburetor's accelerator pump. A valve (5) controls flow of fuel from a fuel discharge port (O) of the pump. A vacuum operated means (9) moves the valve (5) from a position blocking fuel flow from the discharge port to a position permitting fuel flow. A switch (39) controls application of a vacuum to the vacuum operated means (9). A temperature sensor (57) senses engine coolant temperature and switches switch (39) when engine coolant reaches a predetermined temperature so the vacuum operated means (9) is exposed to atmosphere rather than engine vacuum.
Abstract translation: 与化油器（C）一起使用以控制化油器加速泵的排放量的装置（1）。 阀（5）控制来自泵的燃料排出口（O）的燃料的流动。 真空操作装置（9）使阀（5）从阻止燃料流从排出口的位置移动到允许燃料流动的位置。 开关（39）控制对真空操作装置（9）施加真空。 当发动机冷却剂达到预定温度时，温度传感器（57）感测发动机冷却剂温度并切换开关（39），因此真空操作装置（9）暴露于大气而不是发动机真空。
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Patent Agency Ranking
公开(公告)号：US4201734A
公开(公告)日：1980-05-06
申请号：US918571
申请日：1978-06-23
Applicant: Takanori Ohnishi , Ken Shiozawa , Nobuo Shimizu
Inventor： Takanori Ohnishi , Ken Shiozawa , Nobuo Shimizu
CPC classification number: F02M7/08 , Y10S261/74
Abstract: A carburetor having an accelerator pump for pushing fuel contained in the chamber of the pump into an air intake passageway of the carburetor by means of an accelerating pump piston during acceleration, a second pump chamber being expandable and contractable and communicating with the pump chamber via a throttle and a pressure control means for constantly applying pressure to said second pump chamber in a direction whereby the second pump chamber is allowed to expand only when fuel pressure in the second pump chamber exceeds a predetermined value.
Abstract translation: 一种化油器，其具有加速泵，用于在加速期间借助于加速泵活塞将泵容纳在所述泵室中的燃料推入所述化油器的进气通道，所述第二泵室可膨胀和收缩并且经由所述泵室经由 节气门和压力控制装置，用于在只有当第二泵室中的燃料压力超过预定值时允许第二泵室膨胀的方向不断地向所述第二泵室施加压力。
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公开(公告)号：US4108951A
公开(公告)日：1978-08-22
申请号：US773548
申请日：1977-03-02
Applicant: Takao Niwa , Mamoru Yoshioka , Takao Tate
Inventor： Takao Niwa , Mamoru Yoshioka , Takao Tate
CPC classification number: F02M7/087
Abstract: An accelerator pump system is provided which consists of a pump cylinder having an intake port communicating with a float bowl and a discharge port communicated with an acceleration nozzle or pump jet which injects fuel into the throat of a carburetor. The accelerator pump includes a pump plunger which is reciprocally movable within the pump cylinder in response to pivotal movement of the throttle lever of the carburetor. A pump lever and a connecting rod including thermally responsive material such as thermo-wax are in linking arrangement between the pump plunger and the throttle lever in a series relationship in order to control the stroke of the pump plunger thereby to control the amount of fuel which is discharged into the carburetor by the pump system. As a result, the amount of fuel discharged, as well as the lever ratio of the pump lever, i.e. the fuel discharging characteristic thereof, may be controlled in response to changes in ambient temperature.
Abstract translation: 提供了一种加速器泵系统，其包括具有与浮筒连通的进气口的泵缸和与将化学燃料喷射到燃料的加速喷嘴或泵喷嘴连通的排出口。 加速泵包括泵柱塞，该柱塞响应于化油器的节流杆的枢转运动而在泵缸内可往复运动。 泵杆和包括诸如热蜡的热响应材料的连杆在串联关系中在泵柱塞和节流杆之间的连接装置中，以便控制泵柱塞的行程，由此控制燃料量 通过泵系统排入化油器。 结果，可以响应于环境温度的变化来控制排出的燃料量以及泵杆的杠杆比，即其燃料排放特性。
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公开(公告)号：US4075294A
公开(公告)日：1978-02-21
申请号：US773350
申请日：1977-03-01
Applicant: Masaaki Saito , Kenji Okamura
Inventor： Masaaki Saito , Kenji Okamura
CPC classification number: F02M7/093 , Y10T137/7792
Abstract: A carburetor is provided with a flow control valve in a fuel discharge passageway leading from an acceleration pump to an air induction passage. The valve is pressure responsive and reduces effective cross sectional area of the passageway in response to pressure in the passageway, the pump discharge pressure.
Abstract translation: 化油器在从加速泵引导到空气导入通道的燃料排放通道中设置有流量控制阀。 该阀是压力响应的，并且响应于通道中的压力，泵排出压力而减小通道的有效横截面面积。
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69.发明授权
公开(公告)号：US3983850A
公开(公告)日：1976-10-05
申请号：US538470
申请日：1975-01-03
Applicant: Gerhard Stumpp , Josef Steiner
Inventor： Gerhard Stumpp , Josef Steiner
CPC classification number: F02M7/08 , Y10S261/74
Abstract: The invention relates to an apparatus for supplying fuel for acceleration during the warm-up phase of an internal combustion engine. The fuel supplied downstream of an arbitrarily actuatable throttle butterfly valve located in the induction tube of the engine being in addition to the fuel supplied by a fuel supply system. There is disclosed a motion control means which is associated with the butterfly valve and actuated thereby upon opening of this valve. The motion control means further includes electrical contacts disposed in an electrical circuit, electromagnet means in the circuit and other valve means arranged to be controlled by said electromagnet for feeding fuel into said induction tube downstream of said butterfly valve upon closing of said contacts. There are several variants of the control means; one constituted by a flexible bellows and the other by a dash pot.
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公开(公告)号：US3959418A
公开(公告)日：1976-05-25
申请号：US575827
申请日：1975-05-08
Applicant: Francis Sullivan
Inventor： Francis Sullivan
Abstract: A carburetor comprises a mixture outlet and a connection for attaching the mixture outlet to an intake manifold. A main air intake is spaced from the mixture outlet and has a butterfly valve adjustable to control the flow of air into the carburetor. The carburetor also has a fuel inlet. A pair of spaced apart surfaces forms a fuel path from a central portion of the spaced apart surfaces to the periphery of the surfaces. The periphery is adjacent to the carburetor passageway for enabling air from the main air inlet to mix with the fuel and pass to the intake manifold. A central fuel inlet forms a path for fuel from the carburetor fuel reservoir to the surfaces central portion. The central fuel inlet comprises an elongated axially movable tube whose outer surface is tapered. A cylindrical member has its inner surface surrounding the elongated tube outer surface. The cylindrical member and the tube when spaced apart define a main fuel path from the fuel reservoir to the central portion of the surfaces. A secondary air inlet forms an air intake passageway when the main air inlet is closed. The secondary air inlet is defined by a first bore formed in the interior of the elongated tube extending from the carburetor exterior adjacent the main air intake to the central portion of the surfaces. A secondary fuel inlet forms a fuel inlet passageway for mixing with the air in the secondary air inlet. The secondary fuel inlet comprises a second bore in the elongated tube which extends from the fuel reservoir to the central portion of the surfaces. At least one orifice communicates with the bores at the central portion surfaces. A needle is movable with respect to the elongated tube in the first bore for adjusting the flow of the air-fuel mixture through the orifice.
Abstract translation: 化油器包括混合物出口和用于将混合物出口附接到进气歧管的连接。 主进气口与混合物出口间隔开，并具有可调节的蝶阀，以控制进入化油器的空气流。 化油器也有一个燃油进口。 一对间隔开的表面形成从间隔开的表面的中心部分到表面周边的燃料路径。 周边与化油器通道相邻，用于使来自主空气入口的空气与燃料混合并传递到进气歧管。 中央燃料入口形成燃料从化油器燃料储存器到表面中心部分的路径。 中心燃料入口包括细长的可轴向移动的管，其外表面是锥形的。 圆柱形构件具有围绕细长管外表面的内表面。 当间隔开时，圆柱形构件和管限定从燃料储存器到表面的中心部分的主燃料路径。 当主空气入口关闭时，二次空气入口形成进气通道。 二次空气入口由形成在细长管内部的第一孔限定，其从邻近主进气口的化油器延伸到表面的中心部分。 二次燃料入口形成用于与二次空气入口中的空气混合的燃料入口通道。 辅助燃料入口包括细长管中的第二孔，其从燃料储存器延伸到表面的中心部分。 至少一个孔在中心部分表面与孔连通。 针可相对于第一孔中的细长管移动，以调节空气 - 燃料混合物通过孔的流动。
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