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    Evaporative emissions controls in a fuel system
    2.
    发明授权
    Evaporative emissions controls in a fuel system 失效
    燃料系统中的蒸发排放控制

    公开(公告)号：US08240292B1

    公开(公告)日：2012-08-14

    申请号：US12543666

    申请日：2009-08-19

    申请人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    发明人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    IPC分类号： F02M37/20

    CPC分类号： F02M37/20 ,  F02M25/0836 ,  F16K17/19 ,  F16K24/00 ,  Y10T137/86324

    摘要： A method, fuel system, and components for facilitating the delivery of liquid fuel from a fuel tank in fluid communication with a float bowl carburetor of an internal combustion engine, wherein evaporative emissions of the fuel from the fuel tank and float bowl carburetor are mitigated. During operation of the engine, fluid communication is permitted between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank. During inoperation of the engine, fluid communication is prevented between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank.

    摘要翻译： 一种方法，燃料系统和用于便于从燃料箱输送液体燃料的部件，该燃料箱与内燃机的浮罐化油器流体连通，其中减轻了来自燃料箱和浮球式化油器的燃料的蒸发排放。 在发动机操作期间，允许在燃料箱和化油器之间进行流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排放。 在发动机的工作期间，在燃料箱和化油器之间防止流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排气。

    Evaporative emission controls in a fuel system
    3.
    发明授权
    Evaporative emission controls in a fuel system 失效
    燃油系统中的蒸发排放控制

    公开(公告)号：US07216635B1

    公开(公告)日：2007-05-15

    申请号：US10955133

    申请日：2004-09-30

    申请人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    发明人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    IPC分类号： F02M37/20

    CPC分类号： F02M37/20 ,  F02M25/0836 ,  F16K17/19 ,  F16K24/00 ,  Y10T137/86324

    摘要： A method, fuel system, and components for facilitating the delivery of liquid fuel from a fuel tank in fluid communication with a float bowl carburetor of an internal combustion engine, wherein evaporative emissions of the fuel from the fuel tank and float bowl carburetor are mitigated. During operation of the engine, fluid communication is permitted between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank. During inoperation of the engine, fluid communication is prevented between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank.

    摘要翻译： 一种方法，燃料系统和用于便于从燃料箱输送液体燃料的部件，该燃料箱与内燃机的浮罐化油器流体连通，其中减轻了来自燃料箱和浮球式化油器的燃料的蒸发排放。 在发动机操作期间，允许在燃料箱和化油器之间进行流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排放。 在发动机的工作期间，在燃料箱和化油器之间防止流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排气。

    Evaporative emission controls in a fuel system
    5.
    发明授权
    Evaporative emission controls in a fuel system 失效
    燃料系统中的蒸发排放控制

    公开(公告)号：US07591251B1

    公开(公告)日：2009-09-22

    申请号：US11787332

    申请日：2007-04-16

    申请人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    发明人： Ronald H. Roche ,  Mark S. Swanson ,  John C. Woody

    IPC分类号： F02M37/20 ,  F16K24/00

    CPC分类号： F02M37/20 ,  F02M25/0836 ,  F16K17/19 ,  F16K24/00 ,  Y10T137/86324

    摘要： A method, fuel system, and components for facilitating the delivery of liquid fuel from a fuel tank in fluid communication with a float bowl carburetor of an internal combustion engine, wherein evaporative emissions of the fuel from the fuel tank and float bowl carburetor are mitigated. During operation of the engine, fluid communication is permitted between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank. During inoperation of the engine, fluid communication is prevented between the fuel tank and the carburetor, and fuel vapors at a predetermined threshold superatmospheric pressure are permitted to vent outwardly from the fuel tank.

    摘要翻译： 一种方法，燃料系统和用于便于从燃料箱输送液体燃料的部件，该燃料箱与内燃机的浮罐化油器流体连通，其中减轻了来自燃料箱和浮球式化油器的燃料的蒸发排放。 在发动机操作期间，允许在燃料箱和化油器之间进行流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排放。 在发动机的工作期间，在燃料箱和化油器之间防止流体连通，并且允许在预定阈值超大气压下的燃料蒸汽从燃料箱向外排气。

    Fuel metering method and apparatus
    6.
    发明授权
    Fuel metering method and apparatus 失效
    燃油计量方法和装置

    公开(公告)号：US5133905A

    公开(公告)日：1992-07-28

    申请号：US594021

    申请日：1990-10-09

    申请人： John C. Woody ,  Mark S. Swanson

    发明人： John C. Woody ,  Mark S. Swanson

    IPC分类号： F02M7/11 ,  F02M17/04

    CPC分类号： F02M17/04 ,  F02M7/11 ,  Y10S261/67 ,  Y10S261/68

    摘要： Method, system and apparatus for metering fuel to an internal combustion engine via a carburetor having a mixture conduit with a venturi therein. A main fuel nozzle supplies fuel to the venturi of the carburetor in response to the static pressure drop induced across an associated main fuel flow controlling restriction by the engine intake induced air flow through the carburetor mixture conduit. A pitot tube is disposed in the venturi with an opening facing upstream in a zone of maximum air flow through the carburetor venturi. A vent passageway system connects the pitot tube to a single closed air chamber cooperable with either a diaphragm or a float to regulate operation of an inlet valve controlling flow of fuel to a main fuel controlling restriction. The adverse effect of engine intake induced tuning pressure wave forms in the mixture conduit of the carburetor transitting the venturi is eliminated, reduced or modulated by the dynamic pressure exerted by said tuning waves at the pitot tube and transmitted by the vent passageway to said chamber and to said main fuel restriction.

    摘要翻译： 通过具有其中具有文丘里管的混合管道的化油器将燃料计量到内燃机的方法，系统和装置。 主燃料喷嘴响应于由发动机进气引起的通过化油器混合管道的气流引起的相关联的主燃料流控制限制引起的静压力下降，向化油器的文氏管提供燃料。 皮托管设置在文丘里管中，在通过化油器文丘里管的最大气流区域中面向上游的开口。 排气通道系统将皮托管连接到与隔膜或浮子配合的单个封闭空气室，以调节控制燃料流向主燃料控制限制的入口阀的操作。 通过在皮托管施加的所述调谐波施加的动态压力来消除，减少或调节在经过文丘里管的化油器的混合管道中的发动机进气引起的调谐压力波形的不利影响，并且通过排气通道传送到所述室， 说燃油主要限制。

    Temperature compensated fluid flow metering system
    7.
    发明授权
    Temperature compensated fluid flow metering system 失效
    温度补偿流体流量计量系统

    公开(公告)号：US4759883A

    公开(公告)日：1988-07-26

    申请号：US24987

    申请日：1987-03-12

    申请人： John C. Woody ,  Mark S. Swanson

    发明人： John C. Woody ,  Mark S. Swanson

    IPC分类号： F02M17/40 ,  F02M1/10 ,  F02M7/18 ,  F02M7/20 ,  F02M17/04 ,  G05D7/01 ,  F02M3/10

    CPC分类号： G05D7/0186 ,  F02M1/10 ,  F02M17/04 ,  F02M7/18 ,  Y10S261/38 ,  Y10S261/68 ,  Y10S261/84

    摘要： A temperature compensated carburetor having a fuel metering system including a variable restriction needle gate valve for varying the effective flow cross-sectional area of the main and/or idle fuel supply duct to modulate the flow rate of fuel to the carburetor venturi mixing passage. The needle gate valve is made of plastic material having a much greater coefficient of expansion than the aluminum carburetor body in which it is adjustably mounted such that differential linear expansion and contraction of the needle valve relative to the carburetor body in response to ambient temperature changes varies the flow-controlling cross-sectional area of the fuel duct inversely relative to ambient temperature changes. The needle valve is a rod-like body with a threaded cylindrical mounting portion at one end threadably secured in a threaded bore in the carburetor body. A reduced diameter extension of the needle body extends axially away from the mounting end of the needle body and has cylindrical stem portion slidable in another bore of the carburetor body. The needle body is unrestrained linearly from the free end of the stem portion to the needle body mounting portion. The free end of the stem is movable in a jet fuel feeding passageway of the fuel duct to thus vary the flow controlling cross-section thereof.

    Evaporative emission controls
    8.
    发明授权
    Evaporative emission controls 有权
    蒸发排放控制

    公开(公告)号：US07185639B1

    公开(公告)日：2007-03-06

    申请号：US10955795

    申请日：2004-09-30

    申请人： Ronald H. Roche ,  John C. Woody

    发明人： Ronald H. Roche ,  John C. Woody

    IPC分类号： F02M37/20 ,  F02D77/08

    CPC分类号： F02M25/0836 ,  F02M25/089 ,  F02M37/20

    摘要： A method, fuel system, and a valve for facilitating the delivery of liquid fuel and fuel vapors from a fuel tank in fluid communication with a carburetor of an internal combustion engine. During operation of the internal combustion engine, the fuel tank is permitted to fluidically communicate the liquid fuel to the carburetor, and to vent the fuel vapors to one or more of a carbon canister, the atmosphere, and the carburetor. In contrast, when the internal combustion engine is not operating, the fuel tank is prevented from fluidically communicating the liquid fuel to the carburetor, and from venting the fuel vapors to one or more of the carbon canister, the atmosphere, and the carburetor, thereby preventing escape of evaporative emissions of the fuel from the fuel tank.

    摘要翻译： 一种方法，燃料系统和阀，用于便于从与内燃机的化油器流体连通的燃料箱中输送液体燃料和燃料蒸气。 在内燃机操作期间，允许燃料箱使液体燃料与化油器流体连通，并将燃料蒸气排放到碳罐，大气和化油器中的一个或多个。 另一方面，当内燃机不工作时，能够防止燃料箱将液体燃料与化油器流体连通，从而将燃料蒸气排出到碳罐，大气和化油器中的一个以上。 防止来自燃料箱的燃料的蒸发排放物的逸出。

    Controlling evaporative emissions in a fuel system
    9.
    发明授权
    Controlling evaporative emissions in a fuel system 有权
    控制燃料系统中的蒸发排放

    公开(公告)号：US07568472B2

    公开(公告)日：2009-08-04

    申请号：US12173148

    申请日：2008-07-15

    申请人： John C. Woody

    发明人： John C. Woody

    IPC分类号： F02M5/10 ,  F02M5/12

    CPC分类号： F02M5/14 ,  F02M7/12 ,  F02M17/04 ,  F02M25/0836 ,  F02M25/089 ,  F02M37/0023

    摘要： Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valve actuation device stops flow of fuel in one or more of the plurality of fluid paths and the carburetor is adapted to be drained of fuel during engine shutdown to reduce or prevent evaporative emissions from the fuel system. The carburetor is preferably designed so as to minimize a volume of fuel contained therein.

    摘要翻译： 减少挥发性燃料蒸发排放的方法和燃料系统。 燃料箱包含燃料，化油器将空气与来自燃料箱的燃料混合，并且多个流体路径在燃料箱和化油器之间和/或之间路由燃料。 阀致动装置阻止多个流体路径中的一个或多个中的燃料流动，并且化油器适于在发动机关闭期间排出燃料以减少或防止来自燃料系统的蒸发排放。 化油器优选设计成使其中所含的燃料的体积最小化。

    Evaporative emission control apparatus for a combustion engine
    10.
    发明授权
    Evaporative emission control apparatus for a combustion engine 有权

    公开(公告)号：US06640770B2

    公开(公告)日：2003-11-04

    申请号：US09970932

    申请日：2001-10-04

    申请人： John C. Woody

    发明人： John C. Woody

    IPC分类号： F02B7700

    CPC分类号： F02M1/00 ,  F02M25/089

    摘要： A fuel evaporative emission control apparatus in a carburetor which prevents diurnal evaporation to the atmosphere of fuel from a remote fuel tank through a fuel bowl or fuel chamber of a float-type carburetor. One or more shut-off valves in the carburetor are yieldably biased to a shut-off position. Only upon engine operation or user intervention will the fuel shut-off valve move to an open or on position. In this way, reliance upon the engine user is not required to reduce evaporative emissions.