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    • 1. 发明授权
    • Fuel pressure booster and regulator
    • 燃油压力增压器和调压器
    • US4142497A
    • 1979-03-06
    • US629351
    • 1975-11-06
    • E. David Long
    • E. David Long
    • F02D21/08F02D41/32F02M37/08F02M51/00F02M51/06F02M51/08F02M55/04F02M61/16F02M69/04F04B9/06F04B11/00F04B17/04F04B53/10F02M59/16
    • F02M37/08F02D21/08F02D41/32F02M51/005F02M51/0639F02M55/04F02M61/165F02M69/04F04B11/0033F04B17/046F04B53/1035F04B9/06F02M2051/08
    • A fuel injection system for an internal combustion engine employs a relatively low pressure pump to provide fuel to injectors located at the engine cylinders. A booster device for maintaining the fluid pressure constant, at a substantially higher level, is connected in series with the line between the pump and the injector and includes one way valves at its inlet and outlet. The booster employs a chamber connected to the fuel line and pressurized by a piston which acts to contract the chamber volume under the force of the coil spring. The piston is cocked against the spring at regular intervals to renew the original volume of the chamber by an arm driven from the engine crankshaft. Sealed volume converters having flexible diaphragm walls are disposed adjacent to the inlet and outlet of the booster device and in the fluid conduit adjacent the injectors to obviate sharp drops in the fluid pressure in the fuel line when the injectors actuate.
    • 用于内燃机的燃料喷射系统采用相对低压的泵向位于发动机气缸的喷射器提供燃料。 用于将流体压力保持恒定的升压装置以相当高的水平与泵和喷射器之间的管线串联连接,并且在其入口和出口处包括单向阀。 增压器采用连接到燃油管路的腔室,并通过活塞加压,该活塞用于在螺旋弹簧的力作用下收缩室体积。 活塞以规则的间隔对着弹簧,通过从发动机曲轴驱动的臂来更新腔室的原始体积。 具有柔性隔膜壁的密封体积转换器设置在增压装置的入口和出口附近以及与喷射器相邻的流体导管中,以避免在喷射器致动时在燃料管线中的流体压力的急剧下降。
    • 2. 发明授权
    • Fuel injection system with switchable starting mode
    • 燃油喷射系统具有可切换启动模式
    • US4132210A
    • 1979-01-02
    • US728805
    • 1976-10-01
    • E. David Long
    • E. David Long
    • F02D41/34F02D41/06F02B3/00F02N17/00
    • F02D41/064
    • A multi-channel, sequentially timed fuel injection system for an internal combustion spark ignited engine employs a solenoid actuated injector valve for each cylinder controlled by the outputs of separate variable width pulse generators. The pulse generators each employ a resistance-capacitance discharge timing circuit and a single thermistor, common to all the generators, sensitive to engine temperature is connected to the RC circuits of the generators in a first circuit configuration during starting of the engine which provides a wide range of fuel delivery rates for starting and in a second circuit configuration during normal operation in which the various RC circuits are isolated from one another so that interaction of the variable width pulse generators does not occur as a result of the common thermistor connection during normal engine operation.
    • 用于内燃火花点火发动机的多通道顺序定时燃料喷射系统使用由单独的可变宽度脉冲发生器的输出控制的每个气缸的电磁致动喷射阀。 脉冲发生器各自采用电阻 - 电容放电定时电路,并且对发动机温度敏感的所有发生器共同的单个热敏电阻在发动机启动期间以第一电路配置连接到发电机的RC电路,其提供宽 在各种RC电路彼此隔离的正常操作期间的启动和第二电路配置的燃料传送速率范围,使得由于常规发动机中的公共热敏电阻连接而不会发生可变宽度脉冲发生器的相互作用 操作。
    • 8. 发明授权
    • Fuel injection system with augmented temperature sensitive fuel
enrichment for transient engine loads
    • 燃油喷射系统,具有增强的温度敏感性燃料浓缩用于瞬态发动机负载
    • US4143621A
    • 1979-03-13
    • US728822
    • 1976-10-01
    • E. David Long
    • E. David Long
    • F02D41/34F02D41/06F02B3/02
    • F02D41/068F02D2200/0606
    • A fuel injection system for a spark ignited, internal combustion engine employs sensors which measure engine operating parameters to control the duration of actuating pulses applied to at least one fuel injector. One of the sensors measures engine temperature and the pulse duration is increased at lower engine temperatures to compensate for the lower volatility of the fuel at such lower temperatures. The output of a manifold vacuum sensor is differentiated to derive a signal proportional to the rate of increase of engine load and that is used in combination with the engine temperature sensor to increase the duration of an injector actuating pulse in amounts proportional to the rate of increase of engine load. The amount of increase in duration of the pulse varies inversely with engine temperature. This allows the enrichment of the fuel charge which normally occurs as an inverse function of engine temperature to be maintained at a level which may produce a leaner steady state air to fuel ratio during engine warm-up and to provide additional enrichment of the fuel charge during periods of increase transient engine load to provide reduced exhaust emissions during warm-up without stalling.
    • 用于火花点火的内燃机的燃料喷射系统使用测量发动机操作参数以传送施加到至少一个燃料喷射器的致动脉冲持续时间的传感器。 传感器中的一个测量发动机温度,并且在较低发动机温度下脉冲持续时间增加以补偿在较低温度下燃料的较低挥发性。 歧管真空传感器的输出被差分以导出与发动机负载的增加速率成比例的信号,并且与发动机温度传感器组合使用以增加喷射器致动脉冲的持续时间,其数量与增加的速率成比例 的发动机负荷。 脉冲持续时间的增加量与发动机温度成反比。 这允许通常作为发动机温度的反函数发生的燃料充量的富集被保持在可以在发动机预热期间可能产生更冷的稳态空气燃料比的水平,并且在发动机预热期间提供额外的燃料充量浓缩 增加瞬态发动机负载的时间段,以在预热期间提供减少的排气排放而不失速。
    • 9. 发明授权
    • Closed loop fuel control for internal combustion engine
    • 内燃机闭环燃油控制
    • US4295451A
    • 1981-10-20
    • US135820
    • 1980-03-31
    • E. David Long
    • E. David Long
    • F02D41/14G05B5/01F02M7/00
    • G05B5/01F02D41/1482F02D2200/703F02D41/1456
    • An electronic fuel injection system is provided with a closed loop control having a plurality of loops for proportioning a mixture of air and fuel delivered to an internal combustion engine. The system has a sensor for providing an electrical signal, the magnitude of which varies in proportion to the concentration of a constituent of exhaust gas from the engine. A first of the loops compensates for small amplitude, short term disturbances of said signal. The second loop compensates for large amplitude, long term signal disturbances. Signals from the first and second loops are combined to produce a composite signal that maintains precise control over the average air/fuel ratio while generating rapid small amplitude fluctuations in that air/fuel ratio which shortens the response time of the system and increases its ability to reduce exhaust gas pollutants.
    • 电子燃料喷射系统具有闭环控制,该闭环控制具有多个循环,用于将输送到内燃机的空气和燃料的混合物配比。 该系统具有用于提供电信号的传感器,电信号的大小与来自发动机的废气的成分的浓度成比例地变化。 第一个环路补偿所述信号的小振幅,短期干扰。 第二个环路补偿大幅度的长期信号干扰。 来自第一和第二回路的信号被组合以产生复合信号,其维持对平均空气/燃料比的精确控制,同时产生空燃比的快速小振幅波动,其缩短系统的响应时间并增加其对 减少废气污染。
    • 10. 发明授权
    • Electromagnetically operated valve
    • 电磁阀
    • US4033513A
    • 1977-07-05
    • US629450
    • 1975-11-06
    • E. David Long
    • E. David Long
    • F02D21/08F02D41/32F02M37/08F02M51/00F02M51/06F02M51/08F02M55/04F02M61/16F02M69/04F04B9/06F04B11/00F04B17/04F04B53/10B05B1/30
    • F04B53/1035F02D41/32F02M37/08F02M51/005F02M51/0639F02M55/04F02M69/04F04B11/0033F04B17/046F04B9/06F02M2051/08F02M61/165
    • An electromagnetically operated valve which may be used as a fuel injector in a fuel injection system for an internal combustion engine. The valve includes: a discharge means, a sealing means, a fluid conduit, an electrical conductor, an electromagnetic circuit, a travel limiter and a biasing means. The sealing means intermittently opens and closes the discharge means. The electromagnetic circuit includes: a movable armature, a center pole, a combined housing and outer pole, a coil for magnetizing said electromagnetic circuit in response to said electrical signal and a flux path. The armature is a low mass, dual purpose disc which cooperates with the sealing means. The armature is disposed within and in slideable contact with the housing. The travel limiter limits travel of the armature in an upstream direction and defines a single air gap in the flux path between an upstream face of the armature and a downstream end of the first pole when the armature is in an upstream open position. The armature has a travel distance between its upstream open position and its downstream closed position, which is approximately equal to the single gap in the flux path.
    • 一种电磁操作阀,其可用作内燃机的燃料喷射系统中的燃料喷射器。 阀包括:排放装置,密封装置,流体导管,电导体,电磁回路,行​​程限制器和偏置装置。 密封装置间歇地打开和关闭排出装置。 电磁电路包括:可动电枢,中心极,组合壳体和外极,用于响应于所述电信号和磁通路径来磁化所述电磁电路的线圈。 衔铁是与密封装置配合的低质量双用盘。 电枢设置在壳体内并与壳体可滑动接触。 行程限制器限制电枢在上游方向上的行进,并且当电枢处于上游打开位置时,在电枢的上游面和第一极的下游端之间的磁通路径中限定单个气隙。 衔铁具有在其上游打开位置和其下游关闭位置之间的行进距离,其大致等于通量路径中的单个间隙。