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公开(公告)号：US06269799B1
公开(公告)日：2001-08-07
申请号：US09384698
申请日：1999-08-26
Applicant: Hitoshi Watanabe , Masaki Okazaki , Takahide Watanabe
Inventor： Hitoshi Watanabe , Masaki Okazaki , Takahide Watanabe
IPC: F02M3704
CPC classification number: F02M7/11 , F02B61/045 , F02M7/08 , F02M37/18 , F02M37/20
Abstract: A fuel supply system for use with an engine having four vertically-arranged cylinders and multiple charge formers prevents air or vapor pockets from accumulating within the fuel pump or fuel lines. A pair of fuel pumps are mounted vertically one above the other. A fuel inlet port of each pump is formed at the lower-most portion of the pump. A fuel discharge port is formed at the upper-most portion of each port. A conduit attached to the top fuel pump's discharge port supplies fuel to an uppermost and lowermost carburetor. A conduit from the lowermost fuel pump supplies fuel to the middle two carburetors. The uppermost carburetor's fuel inlet port is positioned vertically higher than the top fuel pump's discharge port. The second carburetor's fuel inlet port is positioned vertically higher than the second fuel pump's discharge port. Air or vapor pockets within the fuel lines naturally migrates through the fuel pump and through the fuel conduits into the carburetors without becoming trapped in the fuel supply system.
Abstract translation: 一种用于具有四个垂直布置的气缸和多个充电成形器的发动机的燃料供应系统防止空气或蒸气袋积聚在燃料泵或燃料管线内。 一对燃油泵垂直安装在另一个上。 每个泵的燃料入口形成在泵的最下部。 燃料排出口形成在每个端口的最上部。 连接到顶部燃料泵的排出口的导管向最上面和最下面的化油器供应燃料。 最低燃油泵的导管向中间两个化油器提供燃油。 最上面的化油器的燃料入口位于垂直高于顶部燃料泵的排放口的位置。 第二化油器的燃料入口位于垂直于第二燃料泵的排出口的位置。 燃料管线内的空气或蒸气袋自然地通过燃料泵迁移并通过燃料管道进入化油器，而不会被困在燃料供应系统中。
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公开(公告)号：US06263851B1
公开(公告)日：2001-07-24
申请号：US09042831
申请日：1998-03-17
Applicant: Yasuhiko Henmi
Inventor： Yasuhiko Henmi
IPC: F02M3510
CPC classification number: F02B61/045 , F02B75/20 , F02B2075/025 , F02B2075/1812 , F02M7/08 , F02M17/34 , F02M35/10052 , F02M35/10183 , F02M35/1019 , F02M35/10196 , F02M35/10275 , F02M35/167
Abstract: An air inlet device for an engine powering a water propulsion device of a watercraft, the watercraft having a hull defining an engine compartment in which the engine is positioned, is disclosed. The engine has a body defining at least one combustion chamber and an output shaft arranged to drive the water propulsion device. Air is supplied to the combustion chamber of the engine through the air inlet device. This device includes an intake pipe extending outwardly from the engine and an air box connected to the intake pipe. The air box has a cover having a top and a bottom and defining an interior air chamber, an air inlet provided near the top of the air box and a drain provided through the bottom of the air box. The intake pipe has a passage therethrough leading from the interior air chamber of the air box to said engine. The air box has a width at the top which is greater than a width at the bottom.
Abstract translation: 公开了一种用于为船舶的水推进装置供电的进气装置，该船舶具有限定发动机室定位的发动机舱的船体。 发动机具有限定至少一个燃烧室的主体和布置成驱动水推进装置的输出轴。 空气通过进气装置供给到发动机的燃烧室。 该装置包括从发动机向外延伸的进气管和连接到进气管的空气箱。 空气箱具有顶盖和底部并限定内部空气室的盖，设置在空气箱顶部附近的空气入口和通过气箱底部设置的排水口。 进气管具有从空气箱的内部空气室引导到所述发动机的通道。 空气箱的顶部宽度大于底部的宽度。
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公开(公告)号：US5240649A
公开(公告)日：1993-08-31
申请号：US968039
申请日：1992-10-05
Applicant: Minoru Yamada , Masao Akamine , Shoichi Mitsui , Tokihiko Aodai
Inventor： Minoru Yamada , Masao Akamine , Shoichi Mitsui , Tokihiko Aodai
Abstract: An enrichment device for a charge forming system for an internal combustion engine that is responsive to induction system pressure for effecting a pumping action to draw fluid in when the engine is operating in a steady state condition and to discharge fluid for enrichment when the engine is being accelerated. The system includes a series of interrelated pressure sensing chambers for controlling the operation of the pump to avoid fluctuations during small variations in induction system pressure but to permit rapid and immediate pumping action upon sudden pressure changes.
Abstract translation: 一种用于内燃机的充电成形系统的富集装置，其响应于感应系统压力，用于在发动机处于稳定状态的情况下进行抽吸动作以抽出流体，并且当发动机处于发动机时将其排出用于浓缩 加速 该系统包括一系列相互关联的压力感测室，用于控制泵的操作以避免在感应系统压力的小变化期间的波动，但允许在突然的压力变化时快速和立即泵送动作。
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公开(公告)号：US5128071A
公开(公告)日：1992-07-07
申请号：US651474
申请日：1991-02-06
Applicant: George B. Smith , Timothy T. Tiller
Inventor： George B. Smith , Timothy T. Tiller
CPC classification number: F02M35/10019 , F02B61/02 , F02M1/046 , F02M3/08 , F02M35/10196 , F02M35/10262 , F02M35/162 , F02M7/08 , Y02T10/146 , Y10S261/08
Abstract: A butterfly type motorcycle carburetor including a housing having an induction passage and a venturi intermediate the ends of the passage, a butterfly valve assembly positioned in the induction passage downstream from the venturi and a fuel bowl mounted on the housing and forming a fuel reservoir below the induction passage. A main discharge tube is mounted in the housing with one end extending into the venturi in the induction passage and the other end into the fuel reservoir in the fuel bowl. An accelerator pump system is provided in the carburetor which includes a discharge nozzle that extends into the induction passage downstream from the venturi for directing fuel discharged from the nozzle toward the butterfly valve. An enrichment system is provided in the carburetor which can be selectively set at any position. A low speed air/fuel metering system is provided in the housing for low speed operation. A teardrop type air cleaner is mounted on the inlet end of the induction passage and includes an air directional cone axially aligned with the induction passage for directing filtered air into the induction passage. All of the air passing through the carburetor is filtered before entering the carburetor.
Abstract translation: 一种蝴蝶式摩托车化油器，包括具有在通道端部之间的进气通道和文丘里管的壳体，位于文丘里管下游的进气通道中的蝶阀组件和安装在壳体上的燃料箱， 感应通道。 主放电管安装在壳体中，其一端在进气通道中延伸到文氏管中，另一端进入燃料碗中的燃料储存器。 在化油器中设置有一个加速器泵系统，该系统包括一个排放喷嘴，该排放喷嘴延伸到文丘里管的下游的导入通道中，用于引导从喷嘴排出的燃料朝向蝶阀。 在化油器中提供浓缩系统，其可以选择性地设置在任何位置。 壳体内设有低速空气/燃料计量系统，用于低速运行。 泪滴式空气滤清器安装在进气通道的入口端，并且包括与进气通道轴向对齐的空气定向锥体，用于将过滤的空气引导到进气通道中。 在进入化油器之前，通过化油器的所有空气都被过滤。
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公开(公告)号：US4768494A
公开(公告)日：1988-09-06
申请号：US94654
申请日：1987-09-09
Applicant: David J. Hale
Inventor： David J. Hale
CPC classification number: F02D17/02 , F02B25/26 , F02M3/12 , F02M7/08 , F02B2075/025 , F02B61/045
Abstract: An idling system for a multi-cylinder two-stroke engine as used in an outboard motor. Through a porting arrangement in the carburetor of at least one of the cylinders, the fuel supplied to that cylinder at idle and off-idle speed is reduced to a value so that the fuel-air ratio is too lean to fire. On rapid acceleration from idle speed, a charge of fuel is injected directly to the non-firing cylinder to provide smooth acceleration.
Abstract translation: 用于舷外马达的多缸二冲程发动机的怠速系统。 通过在至少一个气缸的化油器中的移动装置，在怠速和怠速下供给到该气缸的燃料被减少到一个值，使得燃料 - 空气比太薄而不能燃烧。 在怠速快速加速时，直接向非发动缸注入燃油，以提供平稳的加速。
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Patent Agency Ranking
公开(公告)号：US4568500A
公开(公告)日：1986-02-04
申请号：US658002
申请日：1984-10-05
Applicant: Howard P. Rock , Kelly P. Rock
Inventor： Howard P. Rock , Kelly P. Rock
CPC classification number: F02M29/06 , F02M1/10 , F02M19/03 , F02M33/04 , F02M7/08 , F02M7/22 , Y10S261/19
Abstract: An engine carburetor, the disclosed carburetor comprising (a) an atomizing section comprising several fuel/air mixing sites where a high degree of vaporization and homogenization is achieved, (b) a crankcase fume recycling section, (c) a main air intake section, (d) a fuel metering section and (e) an excess fuel removal and fuel recycling section.
Abstract translation: 一种发动机化油器，所述汽化器包括（a）雾化部分，其包括实现高度汽化和均质化的多个燃料/空气混合部位，（b）曲轴箱烟气再循环部分，（c）主进气部分， （d）燃料计量部分和（e）多余的燃料去除和燃料循环部分。
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公开(公告)号：US4518540A
公开(公告)日：1985-05-21
申请号：US460765
申请日：1983-01-25
Applicant: Hidekazu Takayasu
Inventor： Hidekazu Takayasu
Abstract: An improved two-barrel, multi-fuel carburetor. The carburetor comprises a main body portion in which the main fuel bowl is positioned and an auxiliary body portion in which an auxiliary fuel bowl is positioned. All of the fuel and air passages extending between the main and auxiliary body portions extend through faces of the respective body portions that are in facing engagement when the auxiliary body portion is affixed to the main body portion so as to eliminate the necessity for external plumbing. Also, an improved arrangement is provided for preventing the discharge of fuel from the auxiliary fuel discharge under some engine running conditions. The carburetor also employs a simplified accelerating pump discharge that uses only a single accelerating pump discharge tube that extends completely through one of the induction passages and which terminates in the other induction passage and has discharge ports in both induction passages.
Abstract translation: 改进的双桶，多燃料化油器。 化油器包括其中主燃料碗定位的主体部分和辅助主体部分，辅助主体部分中配置有辅助燃料碗。 在辅助主体部分固定在主体部分上时，在主体部分和主体部分之间延伸的所有燃料和空气通道延伸穿过相应主体部分的面对面，以消除对外部管道的需要。 此外，提供了一种改进的布置，用于在一些发动机运行条件下防止燃料从辅助燃料排放中排出。 化油器还采用简化的加速泵排放，其仅使用单个加速泵排出管，其完全延伸穿过其中一个进气通道并且终止于另一个进气通道并且在两个进气通道中具有排放口。
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公开(公告)号：US4515734A
公开(公告)日：1985-05-07
申请号：US461847
申请日：1983-01-28
Applicant: Howard P. Rock , Kelly P. Rock
Inventor： Howard P. Rock , Kelly P. Rock
CPC classification number: F02M33/04 , F02M1/10 , F02M19/03 , F02M29/06 , F02M7/08 , F02M7/22 , Y10S261/21
Abstract: An engine carburetor and related methods, the disclosed carburetor comprising (a) an atomizing section comprising several fuel/air mixing sites where a high degree of vaporization and homogenization is achieved, (b) a crankcase fume recycling section, (c) a main air intake section, (d) a fuel metering section and (e) an excess fuel removal and fuel recycling section.
Abstract translation: 一种发动机化油器及相关方法，公开的化油器包括（a）雾化部分，其包括实现高度汽化和均质化的多个燃料/空气混合部位，（b）曲轴箱烟气再循环部分，（c）主空气 进气段，（d）燃料计量段和（e）多余的燃料去除和燃料再循环部分。
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公开(公告)号：US4481914A
公开(公告)日：1984-11-13
申请号：US430065
申请日：1982-09-30
Applicant: Tokuzi Ishida
Inventor： Tokuzi Ishida
Abstract: An accelerator pump supplies additional fuel into a primary intake passage when a primary throttle valve is opened. A vacuum-operated actuator is responsive to a vacuum developed in a manifold passage upon cranking for actuating an accelerator pump plunger to discharge extra fuel into the primary intake passage. When the engine which is cold is to be started, such an additional supply of fuel assists the engine in getting started quickly. When the engine which is hot is to be restarted, the actuation of the accelerator pump clears away fuel vapor from the accelerator pump and a fuel feed passage connected therewith, thus readying the accelerator pump for normal operation. The primary throttle valve is operatively connected to the accelerator pump through a plate cam having a cam edge which is profiled such that the amount of extra fuel as supplied by the accelerator pump is proportional to opening of the primary throttle valve.
Abstract translation: 当主节流阀打开时，加速器泵向主进气通道提供额外的燃料。 真空操作的致动器响应于在起动时在歧管通道中形成的真空，用于致动加速器泵柱塞以将额外的燃料排放到主进气通道中。 当要启动发动机时，这种额外的燃油可以帮助发动机快速起动。 当要重新启动热的发动机时，加速器泵的致动将加速器泵的燃料蒸气和与其连接的燃料供给通道清除，从而准备加速器泵以进行正常操作。 主节流阀通过具有凸轮边缘的板式凸轮可操作地连接到加速器泵，凸轮边缘被轮廓化，使得由加速器泵供应的额外燃料的量与主节流阀的打开成比例。
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公开(公告)号：US4305368A
公开(公告)日：1981-12-15
申请号：US41280
申请日：1979-05-21
Applicant: Michael B. Phelan , Larry J. Tipton
Inventor： Michael B. Phelan , Larry J. Tipton
CPC classification number: F02M7/08 , F02M5/08 , Y10S261/67
Abstract: Apparatus for venting fuel vapors present in the fuel bowl of a carburetor for an internal combustion engine. A carburetor has at least one air passage through which air is drawn into the engine, a throttle valve positioned in the air passage and movable between an open and a closed position to control the flow of air therethrough, a fuel circuit by which fuel is delivered from the fuel bowl to the air passage for mixing with air passing therethrough, and means responsive to the movement of the throttle valve for controlling the quantity of fuel delivered through the fuel circuit. A fuel bowl cover has a vent through which fuel vapors discharge when the vent is open and a valve opens and closes the vent. A fuel pump supplies fuel from the fuel bowl to the air passage as the throttle valve opens and moves the valve to a vent opening position in response to the movement of the throttle valve. The pump is actuated as the throttle valve opens whereby the valve is opened and vapors in the fuel bowl are vented.
Abstract translation: 用于排放存在于用于内燃机的化油器的燃料箱中的燃料蒸气的装置。 化油器具有至少一个空气通道，空气通过该通道吸入发动机，节流阀定位在空气通道中并且可在打开和关闭位置之间移动，以控制空气流过其中，燃料回路通过该燃料回路输送燃料 从燃料碗到空气通道以与通过其中的空气混合，以及响应于节流阀的运动的装置，用于控制通过燃料回路输送的燃料量。 燃料碗盖具有通气口，当通风口打开并且阀打开并关闭通风口时，燃料蒸气通过该排气口排出。 当节气门打开时，燃料泵将燃料从燃料碗供给到空气通道，并响应于节流阀的运动将阀移动到排气口。 当节气门打开时，泵被致动，由此阀打开并且燃料碗中的蒸气被排出。
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