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公开(公告)号：US5381771A
公开(公告)日：1995-01-17
申请号：US133374
申请日：1993-10-08
申请人： Michael D. Leshner
发明人： Michael D. Leshner
CPC分类号： F02D41/2458 , F02D41/1406 , F02D43/00 , F02M23/001 , Y02T10/146
摘要： An automatic control system is shown to vary the mixture of fuel-to-air in a conventional internal combustion engine to minimize resulting pollutants and maximize engine efficiency and performance. The system senses manifold vacuum and engine acceleration and based, in part, upon such inputs forces the mixture leaner until an instability event is detected at which time the system rapidly forces the mixture richer at a predetermined rate and time period to overcome the instability. The mixture is then again gradually forced leaner. The rate of leaning is controlled by the vacuum pressure so that no leaning occurs at or near full throttle and the rate of leaning is decreased either gradually or incrementally as power requirements decrease. The air-to-fuel ratio may be adjusted by regulating the introduction of secondary air or by adjusting the quantity of fuel injection. A control system for individually monitoring and correcting fuel injection rates of individual cylinders is provided. Another embodiment of the control system includes an improved vacuum operated air valve for disabling the leaning function when the throttle is fully closed or fully open. The lean burn control system may be combined with either an exhaust gas recirculation system or a water injection system.
摘要翻译： 显示了一种自动控制系统来改变常规内燃机中燃料与空气的混合，以最小化所产生的污染物并最大化发动机效率和性能。 系统感测歧管真空和发动机加速度，并且部分地基于这样的输入，迫使混合物更精细，直到检测到不稳定性事件，在该时间系统以预定的速率和时间段快速地迫使混合物更加富集以克服不稳定性。 然后混合物再次逐渐被迫变稀。 倾斜率由真空压力控制，使得在全节气门处或附近不发生倾斜，随着功率需求的减小，倾斜率逐渐或逐渐降低。 可以通过调节二次空气的引入或通过调节燃料喷射量来调节空燃比。 提供了用于单独监测和校正各个气缸的燃料喷射速率的控制系统。 控制系统的另一实施例包括改进的真空操作空气阀，用于当节流阀完全关闭或完全打开时禁止倾斜功能。 稀燃控制系统可以与废气再循环系统或注水系统组合。
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2.发明授权Adaptive charge forming system for controlling the air/fuel mixture supplied to an internal combustion engine 失效用于控制供给内燃机的空气/燃料混合物的自适应充电成形系统
公开(公告)号：US4368707A
公开(公告)日：1983-01-18
申请号：US172665
申请日：1980-07-28
申请人： Ervin Leshner , Michael D. Leshner
发明人： Ervin Leshner , Michael D. Leshner
CPC分类号： F02M69/18 , F02B1/00 , F02D41/1498 , F02M31/18 , F02D2200/1015 , F02D41/005 , F02M26/54 , Y02T10/126
摘要： An adaptive charge forming system for an internal combustion engine is disclosed which monitors a parameter of engine combustion efficiency, such as power output, and derives a signal indicating the direction and amplitude of power change. The fuel mixture control system responds to changes in power output, regardless of their source, to maintain the engine air/fuel ratio in a preferred region. In a preferred embodiment, engine crankshaft angular acceleration is monitored to maintain the air/fuel mixture at the lean limit. A stepping motor is used to control a value for bleeding additional air into the charge; a clock provides steady pulses to the motor, tending to lean the mixture, while enrichment is effected upon the detection of each weak combustion event. The clock frequency thus sets the equilibrium rate of weak combustion events, defining the optimal mixture to be supplied to the engine.
摘要翻译： 公开了一种用于内燃机的自适应充电成形系统，其监测诸如功率输出的发动机燃烧效率的参数，并且导出指示功率变化的方向和幅度的信号。 燃料混合物控制系统响应功率输出的变化，不管其来源如何，以将发动机空气/燃料比保持在优选区域。 在优选实施例中，监测发动机曲轴角加速度以将空气/燃料混合物保持在稀薄极限。 步进电机用于控制将额外空气排入电荷的值; 时钟向电动机提供稳定的脉冲，倾向于倾斜混合物，同时在检测到每个弱燃烧事件时进行浓缩。 因此，时钟频率设定了弱燃烧事件的平衡速率，定义了要提供给发动机的最佳混合物。
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3.发明授权Charge forming system for maintaining operation of an internal combustion engine at its lean limit 失效用于将内燃机的运行维持在其极限的充气成形系统
公开(公告)号：US4232643A
公开(公告)日：1980-11-11
申请号：US743764
申请日：1976-11-22
申请人： Ervin Leshner , Michael D. Leshner
发明人： Ervin Leshner , Michael D. Leshner
IPC分类号： F02B1/00 , F02D21/08 , F02D41/14 , F02M25/07 , F02M31/18 , F02M69/18 , F02B3/00 , F02B33/00 , F02M17/18
CPC分类号： F02M31/18 , F02B1/00 , F02D41/1498 , F02M26/35 , F02M26/36 , F02M26/63 , F02M69/18 , F02D2200/1015 , Y02T10/126
摘要： A charge forming system is disclosed which monitors a parameter of engine combustion efficiency, such as power output, and derives a signal indicating the sense of power change. A fuel mixture control system responds to an indication of increasing power to continually and progressively lessen the fuel/air ratio to attain the leanest possible mixture consistent with maximum instantaneous engine power output. In a preferred embodiment liquid fuel is vaporized before delivery to the engine combustion chambers, and a variable orifice provided to enhance the flow characteristics of the vaporized fuel.
摘要翻译： 公开了一种电荷形成系统，其监测诸如功率输出的发动机燃烧效率的参数，并且导出指示功率变化感的信号。 燃料混合物控制系统响应于增加功率的指示以连续地逐渐减小燃料/空气比，以获得与最大瞬时发动机功率输出一致的最小可能的混合。 在优选实施例中，液体燃料在输送到发动机燃烧室之前蒸发，并且可变孔被设置以增强汽化燃料的流动特性。
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公开(公告)号：USRE29978E
公开(公告)日：1979-05-01
申请号：US780404
申请日：1977-03-23
申请人： Ervin Leshner , Michael D. Leshner
发明人： Ervin Leshner , Michael D. Leshner
CPC分类号： F02B17/005 , F02M57/06 , F02B1/04
摘要： A combined fuel vapor injector and igniter system for internal combustion engines and method of operating the engine therewith in which liquid fuel enters an injector-igniter device, is vaporized using the engine's heat of combustion, and exits in vapor form into the engine combustion chamber where it mixes with air or an air-fuel mixture which has entered through an intake valve, or port, and the resulting air-fuel mixture is ignited. The system assures reliable ignition, so that engines may be run at leaner than stoichiometric air-fuel ratios to take advantage of increased fuel economy, and reduced emissions of the oxides of nitrogen hydrocarbons and carbon monoxide. Power output equalization is attained between cylinders.
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公开(公告)号：US5253536A
公开(公告)日：1993-10-19
申请号：US907264
申请日：1992-07-01
摘要： A rotary type flowmeter having a variable orifice through which the flow to be measured is directed toward a rotatable needle. A preload is also applied and which may be varied as desired. By the use of the variable orifice and with the preload, the same flowmeter may be used for differing ranges of flow by minor adjustment and various indicating scales may be taylored to the particular flow being monitored.
摘要翻译： 具有可变孔口的旋转式流量计，待测流量朝向可旋转的针头。 还施加预载荷并且其可以根据需要而变化。 通过使用可变孔口和预压力，相同的流量计可以通过微调而用于不同的流量范围，并且可以对被监测的特定流量进行各种指示秤。
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公开(公告)号：US4904182A
公开(公告)日：1990-02-27
申请号：US223233
申请日：1988-07-22
申请人： Michael D. Leshner
发明人： Michael D. Leshner
CPC分类号： F23D14/60 , F23D14/18 , F23D14/64 , Y02E20/344
摘要： The present invention relates to a two stage venturi for a catalytic burner wherein a large exit aperture size and a small air entrainment opening are used to provide a low velocity, rich fuel/air mixture for the pre-heating process followed by a small exit aperture size and a large air entrainment opening to provide a high velocity, lean fuel/air mixture for the catalytic combustion process. Concentric rotating sleeves are used to vary the size of the exit apertures and the air entrainment openings.
摘要翻译： 本发明涉及一种用于催化燃烧器的双级文丘里管，其中使用大的出口孔径和小的空气夹带开口来提供用于预热过程的低速，富燃料/空气混合物，随后是小的出口孔 尺寸和大的空气夹带开口，为催化燃烧过程提供高速，贫燃料/空气混合物。 同心旋转套筒用于改变出口孔和空气夹带口的尺寸。
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公开(公告)号：US4015572A
公开(公告)日：1977-04-05
申请号：US647326
申请日：1976-01-07
申请人： Ervin Leshner , Michael D. Leshner
发明人： Ervin Leshner , Michael D. Leshner
摘要： An improved charge forming system for an internal combustion engine. Fuel and air are metered to the engine as functions of both operator control and manifested engine power output. The incremental changes in fuel flow and air flow which are effected as a result of changes in engine power output are unequal so that the total fuel-air mix ingested by the engine becomes leaner as engine power increases. When the fuel-air mixture becomes so lean that engine power decreases, the charge forming system enriches the mixture so that the system maximizes engine power for any given rate of fuel flow. In a presently preferred embodiment the fuel-air ratio supplied to the engine is leaner than the stoichiometric mixture.
摘要翻译： 一种用于内燃机的改进的电荷形成系统。 燃油和空气计量到发动机，作为操作员控制和显示发动机功率输出的功能。 由于发动机功率输出的变化而影响的燃料流量和空气流量的增量变化是不相等的，使得当发动机功率增加时，由发动机摄入的总燃料 - 空气混合物变得更稀。 当燃料 - 空气混合物变得如此稀薄以致发动机功率降低时，电荷形成系统丰富了混合物，使得系统使任何给定速率的燃料流量的发动机功率最大化。 在目前优选的实施例中，供给发动机的燃料 - 空气比比化学计量混合物更稀。
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公开(公告)号：US5117794A
公开(公告)日：1992-06-02
申请号：US330927
申请日：1989-03-28
CPC分类号： F15C1/04 , F02M69/08 , Y10T137/2207 , Y10T137/2213
摘要： A bistable fluidic switch is switched from its stable state by a pin inserted in the power nozzle of the bistable fluidic switch, the pin being controlled by an electromagnetic actuator which is controlled from an electronic computer. The fluidic switch element has a cross-over type interaction region and a common outlet leading to a pair of output passageways, one of which returns fuel to the supply tank, and the other of which leads to the air intake manifold of the engine. Air is introduced into the output passageway leading to the engine so as to air atomize the fuel before injection of same into the air intake manifold.
摘要翻译： 双稳态流体开关通过插入双稳流体开关的动力喷嘴中的销从其稳定状态切换，该引脚由电子计算机控制的电磁致动器控制。 流体开关元件具有交叉型相互作用区域和通向一对输出通道的公共出口，其中一个输出通道将燃料返回到供应罐，另一个通向发动机的进气歧管。 空气被引入到通向发动机的输出通道中，以便在将燃料喷入进气歧管之前将燃料雾化。
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公开(公告)号：US4827887A
公开(公告)日：1989-05-09
申请号：US183995
申请日：1988-04-20
申请人： Michael D. Leshner
发明人： Michael D. Leshner
CPC分类号： F02D41/045 , F02D41/04 , F02D41/1498 , F02B3/02 , F02D2200/1015
摘要： An adaptive charge mixture control for an internal combustion engine includes four input signals supplied to an OR gate to generate a net "go rich" signal supplied to a servo motor controlling an air/fuel charge mixture control valve for an internal combustion engine. The servo is also supplied with a "go lean" fixed signal tending to lean out the air/fuel mixture. The four "go rich" signals include a first signal derived from a comparison of engine speed with a predetermined minimum (i.e., idle) level; a second signal derived from comparing throttle positions with a preset minimum throttle position; a third signal derived from comparing engine deceleration rate with a preset engine deceleration rate; and a fourth signal derived from a measurement of engine instantaneous power output.
摘要翻译： 用于内燃机的自适应充气混合控制包括提供给或门的四个输入信号，以产生提供给控制用于内燃机的空气/燃料加注混合物控制阀的伺服电动机的净“富”信号。 伺服系统还提供了倾斜的空气/燃料混合物的“倾斜”固定信号。 四个“富”信号包括从发动机速度与预定最小（即空闲）水平的比较得出的第一信号; 通过将节气门位置与预设的最小节气门位置进行比较而得到的第二信号; 将发动机减速率与预设的发动机减速率进行比较而得到的第三信号; 以及从发动机瞬时功率输出的测量得到的第四信号。
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公开(公告)号：US06931120B1
公开(公告)日：2005-08-16
申请号：US09783288
申请日：2001-02-15
CPC分类号： H04M9/082 , H04M1/247 , H04M1/2535
摘要： An electronic circuit for connecting a standard analog telephone to the analog microphone and loudspeaker connections on a personal computer and for separating the talk signal from the combined talk/listen signal occurring at the telephone, effectively minimizing undesirable echo.
摘要翻译： 一种用于将标准模拟电话连接到个人计算机上的模拟麦克风和扬声器连接并用于将通话信号与在电话上发生的组合的通话/听力信号分开的电子电路，从而有效地最小化不期望的回声。
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