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公开(公告)号：US06688533B2
公开(公告)日：2004-02-10
申请号：US09893587
申请日：2001-06-29
IPC分类号： F02D106
CPC分类号： F02D41/20 , F02D2041/2065 , F02D2041/2072 , F02D2200/0606 , F02M51/061 , F02M53/06
摘要： A method and apparatus for measuring and controlling the temperature of fuel inside a fuel injector is provided. A first resistive element having a resistance that varies with temperature is positioned proximal the fuel within a fuel injector and a second resistive element having a known resistance is placed in series with the first resistive element and connected at a node. When a known voltage is applied across the resistor-divider network, the voltage generated at the node corresponds to the temperature of the fuel within the fuel injector. The first resistive element may also be used to heat the fuel within the injector to a predetermined temperature. Logic circuitry prevents energizing the first resistive heating element if any fuel injector coils are energized, thereby ensuring full voltage is available to drive the fuel injector coils.
摘要翻译： 提供了一种用于测量和控制燃料喷射器内的燃料温度的方法和装置。 具有随温度变化的电阻的第一电阻元件位于燃料喷射器内的燃料附近，并且具有已知电阻的第二电阻元件与第一电阻元件串联放置并连接在节点处。 当已知的电压施加在电阻分压器网络上时，在节点处产生的电压对应于燃料喷射器内的燃料的温度。 第一电阻元件也可用于将喷射器内的燃料加热至预定温度。 如果任何燃料喷射器线圈通电，则逻辑电路防止给第一电阻加热元件通电，从而确保驱动燃料喷射器线圈的全电压。
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公开(公告)号：US5758826A
公开(公告)日：1998-06-02
申请号：US627707
申请日：1996-03-29
申请人： Jerry Edward Nines
发明人： Jerry Edward Nines
CPC分类号： F02M53/06 , F02M51/005 , F02M51/0671
摘要： An internal heater for a fuel injector includes an array of plates of a positive temperature coefficient (PTC) material arranged about the valve element in a square tube shape, and surrounded by a heat insulating polytetrafluorethylene sleeve. The plates are preferably coated with polyimide to be protected from the fuel which flows over both surfaces of the plates. Electrical connections are established by inner and outer bands attached to the plates, with a conductive disc having tabs extending to the bands. Spring-loaded contact pins located radially outward from a seal on the disc have wires extending to the connector body contacts of the injector.
摘要翻译： 用于燃料喷射器的内部加热器包括：正温度系数（PTC）材料的阵列阵列，其布置成围绕阀元件呈方形管形状，并由隔热聚四氟乙烯套管包围。 板优选地涂覆有聚酰亚胺以防止在板的两个表面上流动的燃料。 电连接通过连接到板的内部和外部带来建立，导电盘具有延伸到带的突出部。 从盘上的密封件径向向外定位的弹簧加载的接触销具有延伸到注射器的连接器主体接触件的电线。
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公开(公告)号：US06176226B1
公开(公告)日：2001-01-23
申请号：US09340107
申请日：1999-06-25
IPC分类号： F02M3102
CPC分类号： F02M53/06
摘要： A method and apparatus for controlling a heated tip injector having a connector with more than two pins. In one embodiment, the method includes (a) providing a plurality of heated tip injectors each having a coil and an internal heater; (b) maintaining all the internal heaters in an OFF state while the engine is cranking; (c) maintaining an internal beater in an OFF state if any of the coils are ON; and (d) maintaining an internal heater in an ON state if the engine is not cranking and all the internal heater coils are OFF. One embodiment of the apparatus includes a plurality of heated tip injectors each having a coil and an internal heater; a power supply; an ignition switch connected to the power supply, one end of each coil and heater being connected together and to the ignition switch; an engine electronic control unit, another end of each coil being connected to the engine electronic control unit; means for switching each internal heater ON and OFF, another end of each internal heater being connected through a respective means for switching to ground; a crank circuit including a crank for cranking the engine; and means for isolating the crank circuit from the engine electronic control unit.
摘要翻译： 一种用于控制具有多于两个销的连接器的加热尖端喷射器的方法和装置。 在一个实施例中，该方法包括（a）提供多个加热的尖端喷射器，每个喷嘴具有线圈和内部加热器; （b）在发动机起动时将所有内部加热器维持在关闭状态; （c）如果任何线圈为ON，则将内部搅拌器保持在OFF状态; 和（d）如果发动机不起动并且所有内部加热器线圈关闭，则将内部加热器保持在ON状态。 该装置的一个实施例包括多个加热的尖端喷射器，每个喷嘴具有线圈和内部加热器; 电源; 连接到电源的点火开关，每个线圈和加热器的一端连接在一起并连接到点火开关; 发动机电子控制单元，每个线圈的另一端连接到发动机电子控制单元; 用于将每个内部加热器打开和关闭的装置，每个内部加热器的另一端通过相应的装置连接以切换到地面; 包括用于起动发动机的曲柄的曲柄回路; 以及用于将曲柄回路与发动机电子控制单元隔离的装置。
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