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公开(公告)号：US4112901A
公开(公告)日：1978-09-12
申请号：US783610
申请日：1977-04-01
摘要： A fuel supply system supplies volatile fuel at a controlled rate to an air-fuel mixing chamber leading to a subatmospheric intake manifold of an internal combustion engine. Fuel is metered out by a metering gear pump supplied with fuel under pressure sufficient to maintain the fuel in its liquid state. An equalizer valve maintains the pressures on the two sides of the gear pump equal. This assures linearity of fuel rate as a function of pump speed. Pump speed is measured to provide a feedback signal to a controller. The controller compares the feedback with a control signal indicative of desired rate of fuel to develop driving power for application to the gear pump to drive the latter at the speed that supplies fuel at the desired rate.
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公开(公告)号：US4108127A
公开(公告)日：1978-08-22
申请号：US783614
申请日：1977-04-01
IPC分类号： F02D41/18 , F02D11/10 , F02D41/16 , F02M9/08 , F02M23/04 , F02M23/08 , F02D1/04 , F02B15/00 , F02D33/00 , F02D35/00
CPC分类号： F02M9/08 , F02D11/10 , F02M23/04 , F02D2011/102 , Y02T10/146
摘要： An auxiliary air control system controls the flow of air into the intake manifold of an internal combustion engine. The system controls flow through a valve bypassing the main throttle valve to maintain an appropriate rate of air flow. A manifold pressure signal is fed back to a control circuit for comparison with a manifold pressure reference and development of a manifold pressure control signal for positioning the bypass valve to admit air at a rate maintaining the manifold pressure at the reference pressure and thus avoid low manifold pressures as cause excessive emissions of pollutants. A signal indicative of rate of air flow is fed back to the controller for comparison with an air flow reference and development of an air flow control signal for positioning the bypass valve to admit air at a rate maintaining total air flow at the reference rate, as for engine idle. The control signals are applied to admit air at the greater of the two rates. The air flow reference may be controlled as a function of any or all of engine temperature, added load, main throttle opening and starting.
摘要翻译： 辅助空气控制系统控制进入内燃机的进气歧管的空气流。 系统控制通过旁路主节气门的阀门的流量，以保持适当的空气流量。 歧管压力信号被反馈到控制电路，用于与歧管压力参考值进行比较，并且开发歧管压力控制信号，用于定位旁通阀以允许空气以维持歧管压力在参考压力的速率，从而避免低歧管 造成污染物过量排放的压力。 指示空气流量的信号被反馈到控制器以与空气流量参考进行比较，并且开发用于定位旁通阀以允许空气以以参考速率保持总气流的速率的空气流控制信号，以作为 用于发动机空转。 控制信号被应用于以两种速率中的较大的速率允许空气。 空气流量参考可以根据发动机温度，附加负载，主节气门开度和启动中的任何一个或全部来控制。
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公开(公告)号：US4089215A
公开(公告)日：1978-05-16
申请号：US783612
申请日：1977-04-01
申请人： Leonard Lee Chapin
发明人： Leonard Lee Chapin
摘要： An air flow transducer for measuring rate of air flow into an engine having a propensity to backfire includes a rotor with vanes disposed to intercept the air flow. The vanes are formed of low density plastic and affixed to a rotor. The trailing edges of the vanes are shaped to direct forces occasioned by backfire pressure waves to hold the vanes to the hub.
摘要翻译： 用于测量具有回火倾向的发动机的空气流量的气流传感器包括具有设置成拦截空气流的叶片的转子。 叶片由低密度塑料形成并固定在转子上。 叶片的后缘被成形为引导由逆火压力波引起的力，以将叶片保持在轮毂上。
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公开(公告)号：US4087491A
公开(公告)日：1978-05-02
申请号：US783611
申请日：1977-04-01
申请人： Leonard Lee Chapin
发明人： Leonard Lee Chapin
CPC分类号： F02M9/08 , F02B1/04 , Y10S261/48
摘要： A carburetor for an internal combustion engine having an intake manifold includes a hollow air control valve, preferably conical, formed by outer and inner hollow valve members having mating surfaces of revolution about an axis. The inner valve member confines a coaxial internal mixing chamber having a cross section increasing in the direction away from the mating surfaces and terminating in an open end extending toward the intake manifold. The valve members are mounted to intercept air inflow into the intake manifold with the valve members being turnable relative to each other about the axis to change the overlap of respective openings and thereby vary the constriction of air flow at the overlaps to control the rate of air flow into the intake manifold. The respective openings are relatively disposed to direct air flow through each overlap with a transverse component of air flow offset from the direction toward the axis, thereby causing a swirling of air within the mixing chamber. Liquid fuel is introduced into air swirling within said mixing chamber.
摘要翻译： 具有进气歧管的内燃机的化油器包括中空空气控制阀，优选地是圆锥形的，所述中空空气控制阀由具有相对于轴的旋转配合表面的外部和内部中空阀构件形成。 内部阀构件限制同轴的内部混合室，其具有在远离配合表面的方向上增加的横截面，并且终止于朝向进气歧管延伸的开口端。 阀构件安装成拦截进入进气歧管的空气，其中阀构件相对于彼此围绕轴线可转动，以改变相应开口的重叠，从而改变重叠处的空气流的收缩以控制空气的速率 流入进气歧管。 相应的开口相对设置成引导空气流通过每个重叠与横向于轴线的方向偏移的空气流的横向分量，由此引起混合室内的空气旋转。 液体燃料被引入到所述混合室内旋转的空气中。
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