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    Fuel control valve
    2.
    发明授权
    Fuel control valve 失效
    燃油控制阀

    公开(公告)号：US4469070A

    公开(公告)日：1984-09-04

    申请号：US129604

    申请日：1980-03-12

    Applicant: Louis J. Rassey

    Inventor： Louis J. Rassey

    IPC: F02M69/04 ,  F02M69/24 ,  F02M69/46 ,  F02M39/00 ,  F02M37/20

    CPC classification number: F02M69/24 ,  F02M69/043 ,  F02M69/46

    Abstract: A fuel control valve for limiting the flow of fuel to an internal combustion engine having fuel injector means. A fuel control valve has a series of orifices in a fuel control block and a cam located in the block and communicating with a fuel pump for an internal combustion engine. The cam is rotatably movable in the control block so as to increase and decrease the cross-sectional flow area for the fuel to the engine by communicating with one or more fuel orifices or jets in the fuel control block. The cam is mechanically connected to the accelerator of the engine so that fuel supply to the stacks leading to the cylinders of the engine is directly controlled according to the operation of the accelerator pedal. In this way, the fuel flow and pressure to the fuel injector is immediately limited when the operator releases the accelerator. This prevents loss of fuel and leakage of fuel after the engine is shut off since the flow area cross section can be decreased to essentially completely block the flow of fuel to the fuel injector, thereby preventing any drip into the combustion chamber.

    Abstract translation: 一种用于限制燃料流向具有燃料喷射器装置的内燃机的燃料控制阀。 燃料控制阀在燃料控制块和位于该块中的凸轮中具有一系列孔，并与用于内燃机的燃料泵连通。 凸轮可在控制块中可旋转地移动，从而通过与燃料控制块中的一个或多个燃料孔或喷嘴连通来增加和减少用于发动机的燃料的横截面流动面积。 凸轮机械地连接到发动机的加速器，使得根据加速踏板的操作直接控制通向发动机的气缸的燃料供应。 以这种方式，当操作者释放加速器时，燃料喷射器的燃料流量和压力立即受到限制。 这样可以防止在发动机关闭之后燃料损失和燃料泄漏，因为可以减小流动面积横截面以基本上完​​全阻挡燃料流入燃料喷射器，从而防止任何滴落到燃烧室中。

    Carburetor, control apparatus and method for internal combustion engines
    3.
    发明授权
    Carburetor, control apparatus and method for internal combustion engines 失效
    化油器，内燃机控制装置及方法

    公开(公告)号：US4434110A

    公开(公告)日：1984-02-28

    申请号：US246402

    申请日：1981-03-23

    Applicant: William Highfield

    Inventor： William Highfield

    IPC: F02M7/22 ,  F02M9/127 ,  F02M37/20 ,  F02M69/24 ,  F02M69/42 ,  F02M9/12

    CPC classification number: F02M9/127 ,  F02M37/20 ,  F02M69/24 ,  F02M69/42 ,  F02M7/22 ,  Y10S261/19 ,  Y10S261/39 ,  Y10S261/74 ,  Y10T137/2617 ,  Y10T137/264

    Abstract: A carburetor and associated control apparatus for an internal combustion engine. The carburetor includes a carburetor head having a fuel inlet conduit and an air inlet conduit communicating with a fuel mixing chamber. The carburetor further includes metering means for controlling the amount of fuel and air entering the mixing chamber. The mixing chamber connects to an expansion chamber through a control orifice in the carburetor head. The carburetor also includes a carburetor housing having a throat that communicates with the expansion chamber and with an air delivery passage. Air entering the throat is metered with an air valve that is moved with respect to the air delivery passage in correspondence with the fuel metering means.1. Technical FieldThis invention relates generally to fluid distribution apparatus having multiple valves and, more particularly, to carburetors and associated control apparatus for internal combustion engines.2. Background ArtCarburetors perform three functions for internal combustion engines when delivering a gaseous mixture of fuel and air to the cylinders. The first function is to control the speed of the engine by controlling the absolute pressure in the intake manifold of the engine. The second function is to introduce and meter the fuel into the air stream going to the cylinders. The third function is to mix the fuel with the air so that a uniform mixture is produced.One problem with conventional carburetors is that the fuel within the fuel reservoir or float bowl is subject to inertial and gravity forces. The inertial forces are generated by cornering, stopping, and accelerating. The gravity forces stem from hill climbing and from operating at different attitudes. Both sets of forces place operating limitations on engines because they vary the relationship of the fuel and float bowl with respect to the main jets.A further problem with conventional carburetors is the emission of unburned hydrocarbons from the carburetor. When fuel enters the float bowl and drops in pressure to atmospheric pressure, a portion of the fuel is immediately vaporized and can be released unburned to the atmosphere. In addition, heat from an engine that is not in operation can boil the fuel remaining in the float bowl and likewise cause the emission of unburned hydrocarbons.An additional problem with conventional carburetors is in providing a uniform mixture to the engine. One aspect of this problem stems from using a butterfly valve to control the pressure drop across the carburetor. At any angle less than wide open throttle, the butterfly valve deflects the flow through the carburetor. Also, when fuel impinges on the butterfly valve, the denser parts of the mixture tend to come off the lower side of the butterfly valve. Another aspect of the problem occurs at idle and low speeds when there is not sufficient air flow through the carburetor to operate the main venturi system. In this case fuel is introduced into the air stream in the carburetor via an idle port located below the butterfly valve and via a transfer slot located just above the idle port. The idle port and the transfer slot are located on just one side of the throat and hence cannot provide a uniform distribution of fuel across the throat of the carburetor.A typical four barrel carburetor contains more than one hundred parts and is consequently complicated to manufacture and to assemble. These carburetors also require critical adjustments both during installation and at subsequent times. This complexity means that conventional carburetors are expensive and may be subject to frequent repair.Recently there has been wide interest in converting carburetors over to alternative fuels such as ethanol and methanol. The stoichiometric air fuel ratio for these popular alcohol mixtures is much higher than for gasoline. In other words, as the percentage of alcohol is increased in the fuel, the engine tends to run leaner. In order to use a gasoline fuel containing more than ten percent (10%) alcohol, the fuel passages in a conventional carburetor must be substantially enlarged and the jets changed. Such a conversion almost mandates replacement of a conventionally constructed carburetor.Work in this area of technology includes U.S. Pat. No. 4,137,284 entitled "Carburetor", issued Jan. 30, 1979 to Barbee, and U.S. Pat. No. 3,943,205 entitled "Internal Combustion Engine", issued Mar. 9, 1976 to Oliver.The present invention is directed to overcoming one or more of the problems as set forth above.DISCLOSURE OF THE INVENTIONIn one aspect of the present invention a carburetor for an internal combustion engine is contemplated. This carburetor includes a carburetor head having a fuel inlet conduit and an air inlet conduit communicating with a fuel mixing chamber. The carburetor further includes metering means for controlling the amount of fuel and air entering the mixing chamber. The mixing chamber connects to an expansion chamber through a control orifice in the carburetor head. The carburetor also includes a carburetor housing having a throat that communicates with the expansion chamber and with an air delivery passage. Air entering the throat is metered with an air valve that is moved with respect to the air delivery passage in correspondence with the fuel metering means.In the present invention the problem of inertial and gravitational forces acting on the fuel in the fuel bowl is overcome by eliminating the fuel bowl and all other fuel reservoirs in the carburetor. Fuel metering is no longer affected by inertia and the carburetor can be operated at any attitude without disturbing the process of fuel metering. Elimination of the fuel bowl also alleviates the problem of emitting unburned hydrocarbons. In the present invention vapor is not allowed to escape to the atmosphere.The present invention provides a uniform fuel mixture to the engine by first premixing the fuel with air first in a mixing chamber, and secondly in a centrally located expansion chamber and then lowering the momentum of the mixture so that it can flow radially outward and mix with the primary air along a 360.degree. circular front. This technique results in an extremely uniform mixture reaching the intake manifold of the engine.One feature of the present invention is the precise fuel metering that can be obtained. A single fuel metering circuit is used to provide all of the fuel to the carburetor from idle through full throttle. No artificial enrichment devices are required, such as idle feed circuits, low speed circuits, and accelerator pumps. In addition, the transitions between such circuits are avoided.A further feature of the present invention is its mechanical simplicity and use of few moving parts. The apparatus disclosed herein is less expensive to manufacture and to maintain than presently available carburetors. The use of only one fuel metering circuit also permits this carburetor to be easily controlled electronically and to be easily converted over to the use of alternative fuels.The present invention is adapted to incorporate a solenoid operated fuel valve. Fuel flow to the carburetor is terminated either when the engine is decclerated or when the ignition key is turned off. This feature substantially reduces fuel consumption.Other aspects, objects and advantages of this invention can be obtained from a study of the drawings, the disclosure, and the appended claims.

    Abstract translation: 一种用于内燃机的化油器和相关控制装置。 化油器包括具有燃料入口管道和与燃料混合室连通的进气管道的化油器头。 化油器还包括用于控制进入混合室的燃料和空气的量的计量装置。 混合室通过化油器头中的控制孔连接到膨胀室。 化油器还包括具有与膨胀室连通的喉部和空气输送通道的化油器壳体。 进入喉咙的空气被计量与空气阀相对应于燃料计量装置相对于空气输送通道移动。

    Carburetor
    4.
    发明授权
    Carburetor 失效
    化油器

    公开(公告)号：US4257379A

    公开(公告)日：1981-03-24

    申请号：US52938

    申请日：1979-06-28

    Applicant: Nelson F. Hickling

    Inventor： Nelson F. Hickling

    IPC: F02M9/06 ,  F02M69/24 ,  F02M69/44 ,  F02M25/08 ,  F02M37/20

    CPC classification number: F02M69/24 ,  F02M69/44 ,  F02M9/06

    Abstract: A carburetor with a pressurized fuel source is provided. The carburetor has an upright passage extending therethrough with an intermediate fuel-supply portion in which is located a fuel injection tube having a plurality of orifices extending therealong through which fuel is directed under pressure into the passage. An air-control slide valve is mounted for movement across the passage between an open and a closed position and has a closure member or plug which regulates the number of orifices of the injection tube through which the fuel is supplied. The closure member is connected to the accelerator pedal in a manner such that the member opens at least one additional orifice during acceleration before the air-control slide valve opens more, to provide additional fuel during acceleration. Also, during deceleration, the closure member closes at least one additional orifice before the slide valve moves toward the closed position. The carburetor also has a vapor receptacle through which fuel is supplied before being supplied to the injection tube. The receptacle has a return line connected to the fuel tank so that if fuel tends to vaporize in the receptacle, the vapors are fed back to the tank to prevent vapor lock.

    Abstract translation: 提供具有加压燃料源的化油器。 化油器具有一个直立通道，其中间燃料供应部分延伸穿过其中，燃料喷射管具有多个沿其延伸的孔口，燃料通过该喷嘴在压力下被引导到通道中。 一个空气控制滑阀被安装成在打开和关闭位置之间穿过该通道运动，并具有一个封闭件或塞子，该封闭件或塞子调节供给燃料的喷射管的孔数。 关闭构件以这样的方式连接到加速器踏板，使得在空气控制滑阀打开更多之前加速期间构件打开至少一个附加孔口，以在加速期间提供附加燃料。 此外，在减速期间，在滑阀朝向关闭位置移动之前，关闭构件关闭至少一个附加孔口。 化油器还具有蒸汽容器，在供给到注射管之前通过该蒸气容器供应燃料。 容器具有连接到燃料箱的返回线，使得如果燃料容易在容器中蒸发，则蒸汽被反馈到罐以防止气体锁定。

    Carburetion system for internal combustion motor
    5.
    发明授权
    Carburetion system for internal combustion motor 失效
    内燃机电解液系统

    公开(公告)号：US4003357A

    公开(公告)日：1977-01-18

    申请号：US542858

    申请日：1975-01-21

    Applicant: Istvan Furucz

    Inventor： Istvan Furucz

    IPC: F02M1/04 ,  F02M13/04 ,  F02M31/087 ,  F02M69/18 ,  F02M69/24 ,  F02M11/00

    CPC classification number: F02M13/046 ,  F02M1/046 ,  F02M31/087 ,  F02M69/18 ,  F02M69/24 ,  Y02T10/126

    Abstract: The disclosure describes a carburetion system for internal combustion motor comprising a carburetor, a heat exchanger and an admission block. The carburetor has a carburetion chamber for each motor cylinder and is provided with a motor-fuel reservoir, each chamber having a butterfly valve for controlling the introduction of air. A primary circuit individually feeds each chamber from the reservoir while a secondary circuit, which is independent from the chambers, directly feeds the motor cylinders with an excess of motor fuel which is fed from the reservoir. The heat exchanger, which is connected to the carburetor, comprises an independent heat exchange compartment for each carburetion chamber to which it is connected for enabling the mixture which is produced in the chamber to flow directly into the compartment. The combustion gases of the motor are brought around the compartments for evaporating the motor fuel of the mixture which flows therein. The heat exchanger also comprises a secondary circuit which is independent from the compartments and is connected to the secondary circuit of the carburetor for directly feeding the motor cylinders with an excess of motor fuel. The admission block is connected to the exchanger and comprises independent admission chambers, each one of them being connected to a compartment of the exchanger. Moreover, each chamber is connected to the secondary circuit of the heat exchanger in order to feed each motor cylinder with a mixture and with an excess, of motor fuel.

    Abstract translation: 本公开内容描述了一种用于内燃机的汽化系统，包括化油器，热交换器和进气块。 化油器具有用于每个电动机气缸的化油室，并且设置有电动机油储存器，每个室具有用于控制空气引入的蝶形阀。 主要电路单独地从储存器馈送每个室，而独立于室的次级电路直接向电动机气缸供给从储存器供给的过量的电动机燃料。 连接到化油器的热交换器包括用于每个化油器室的独立的热交换室，其连接到其上，以使得室中产生的混合物能够直接流入隔间。 电动机的燃烧气体环绕在隔室内，用于蒸发在其中流动的混合物的机动车燃料。 热交换器还包括独立于隔室的二次回路，并且连接到化油器的次级回路，用于使马达缸与多余的马达燃料直接进给。 进入块连接到交换机，并且包括独立的入口室，其中每一个连接到交换机的隔室。 此外，每个室连接到热交换器的二次回路，以便为混合物和多余的电动机燃料供给每个电动机缸。

    Fuel injection apparatus for automobile
    9.
    发明授权
    Fuel injection apparatus for automobile 失效
    汽车燃油喷射装置

    公开(公告)号：US4694804A

    公开(公告)日：1987-09-22

    申请号：US738422

    申请日：1985-05-28

    Applicant: Torey W. DeGrazia, Jr.

    Inventor： Torey W. DeGrazia, Jr.

    IPC: F02M69/24 ,  F02M39/00

    CPC classification number: F02M69/24 ,  F02B2275/14 ,  Y02T10/123

    Abstract: A fuel injection adapter for a vehicle having a carburetor includes a fuel chamber coupled to the fuel pump of the vehicle, an operating lever adapted for coupling to the throttle lever of the vehicle and a pair of nozzles positioned in the throat of the carburetor for delivering fuel directly thereto. The nozzles are connected to fuel metering jets mounted in a wall of the chamber and corresponding fuel control needles are movable in and out of the jets to control fuel flow by means of a needle plate that is driven from the operating lever. The adapter can be mounted directly to the carburetor. A heater is positioned in the chamber for heating the fuel for cold weather starting. A shutoff valve is connected in the inlet fuel line and stops fuel flow into the chamber when the operating lever is in a position corresponding to a throttle wide open condition.

    Abstract translation: 一种用于具有化油器的车辆的燃料喷射适配器，包括联接到车辆的燃料泵的燃料室，适于联接到车辆的节气门的操作杆和位于化油器喉部中的一对喷嘴，用于输送 直接燃料。 喷嘴连接到安装在腔室的壁中的燃料计量喷嘴，并且相应的燃料控制针可移动进出射流，以通过从操作杆驱动的针板来控制燃料流动。 适配器可直接安装在化油器上。 加热器位于室内，用于加热燃料用于寒冷天气启动。 当操作杆处于与油门开启状态相对应的位置时，截止阀连接在入口燃料管路中，并阻止燃料流入室内。

    Fuel supply system for internal combustion engine
    10.
    发明授权
    Fuel supply system for internal combustion engine 失效
    内燃机燃油供应系统

    公开(公告)号：US4029070A

    公开(公告)日：1977-06-14

    申请号：US602314

    申请日：1975-08-06

    Applicant: Akira Kobayashi

    Inventor： Akira Kobayashi

    IPC: F02D3/02 ,  F02M69/18 ,  F02M69/24 ,  F02M39/00

    CPC classification number: F02M69/18 ,  F02M69/24

    Abstract: A fuel supply system for use with an internal combustion engine of the type in which the air intake quantity is substantially in proportion to the engine speed and the opening degree of a throttle valve and the fuel to be mixed with the air is injected through a fuel injection nozzle, said fuel supply system comprising pump means which discharges the fuel in proportion to the engine speed, and a fuel shunt device for supplying a part of the fuel supplied from said pump means to said fuel injection nozzle while recirculating the remaining fuel to said pump means, said fuel shunt device having first valve means for automatically controlling the area of the opening of a passage hydraulically connecting said fuel shunt device to said fuel injection nozzle in proportion of the discharge rate of said pump means, and second valve means for automatically controlling the area of the opening of a return line hydraulically connecting said fuel shunt device to said pump means in inverse proportion to the opening degree of said throttle valve, whereby the air-fuel mixture with a substantially constant air-fuel ratio independently of the speed and load of the engine may be charged into the engine.

    Abstract translation: 一种与内燃机一起使用的燃料供给系统，其中进气量与发动机转速和节流阀的开度基本成比例，并且与空气混合的燃料通过燃料喷射 所述燃料供给系统包括与发动机转速成比例地排出燃料的泵装置，以及燃料分流装置，用于将从所述泵装置供应的燃料的一部分供给到所述燃料喷射喷嘴，同时将剩余燃料再循环到所述燃料分配装置 所述燃料分流装置具有第一阀装置，用于根据所述泵装置的排出速率与所述燃料喷嘴相配合地自动控制通道液压地连接所述燃料分流装置的通道的面积;以及第二阀装置， 控制将所述燃料分流装置液压连接到所述泵装置的回流管路的开口面积成反比 到所述节流阀的开度，由此可以将独立于发动机的速度和负载的基本恒定的空燃比的空气燃料混合物装入发动机。

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