Method of presetting an internal combustion engine
    1.
    发明授权
    Method of presetting an internal combustion engine 有权
    预置内燃机的方法

    公开(公告)号:US06553966B2

    公开(公告)日:2003-04-29

    申请号:US09808226

    申请日:2001-03-14

    IPC分类号: F02M4700

    摘要: In many cases, intake and/or exhaust valves and fuel injector plungers are desirably placed in a predetermined condition prior to starting the engine. In hydraulic systems, leakage and thermal contraction can lead to pressure loss during a period of non-operation, thereby allowing the components to move away from the predetermined condition. Similar concerns arise with the use of residual electromagnetic force, which can decay over time. In the case of intake/exhaust valves, for example, such undesired movement can led to a potential collision between the valves and the engine piston during starting. This invention provides a system and method for presetting the engine and/or the components thereof to the predetermined condition just prior to starting the engine.

    摘要翻译: 在许多情况下,在启动发动机之前,期望地将进气和/或排气阀和燃料喷射器柱塞置于预定的状态。 在液压系统中,泄漏和热收缩可能导致在非操作期间的压力损失,从而允许部件移动远离预定条件。 使用残留的电磁力也会产生类似的问题,电磁力随时间而衰减。 在进气/排气阀的情况下,例如,这种不期望的运动可能导致在启动期间阀和发动机活塞之间的潜在碰撞。 本发明提供一种用于在发动机启动之前将发动机和/或其部件预置到预定状态的系统和方法。

    Vehicle with engine having enhanced warm-up operation mode
    2.
    发明授权
    Vehicle with engine having enhanced warm-up operation mode 失效
    具有增强预热运行模式的发动机车辆

    公开(公告)号:US06354266B1

    公开(公告)日:2002-03-12

    申请号:US09742716

    申请日:2000-12-20

    IPC分类号: F02N1702

    摘要: An enhanced warm-up operation mode operates a first portion of engine cylinders in a power mode and a second portion of engine cylinders in a braking mode. More fuel is injected into the powered cylinders in order to maintain engine speed and overcome the retarding force of the engine compression release brakes on the braking cylinders. The engine cycles through which cylinders are powered and which are braking during the warm-up procedure. The process reduces emissions, such as white smoke, that are common during cold start conditions.

    摘要翻译: 增强的预热操作模式以制动模式操作处于动力模式的发动机气缸的第一部分和发动机气缸的第二部分。 为了保持发动机转速并克服制动气缸上的发动机压缩释放制动器的阻力,更多的燃料被注入动力缸。 发动机循环通过哪些气缸供电,哪些在预热过程中制动。 该过程减少了冷启动条件下常见的排放,如白烟。

    Electrical actuator subassembly with external threads and fuel injector using same
    9.
    发明授权
    Electrical actuator subassembly with external threads and fuel injector using same 有权
    具有外螺纹的电子执行器组件和使用相同的燃油喷射器

    公开(公告)号:US06742728B2

    公开(公告)日:2004-06-01

    申请号:US09927815

    申请日:2001-08-10

    IPC分类号: F02M3900

    摘要: An electrical actuator subassembly, preferably for use in a fuel injector, includes an externally threaded ferromagnetic metallic body, an internally threaded collar, an electrical actuator, an electrical connector, and a plastic cap. In one embodiment, the electrical actuator is a solenoid, while a piezoelectric actuator is used in a second embodiment. The electrical actuator directly controls a pilot valve member positioned between the metallic body and the injector body, and a needle valve which opens or closes a nozzle outlet at the bottom of the injector. The electrical actuator subassembly is attached to a fuel injector body by mating the external threads of the metallic body to the internal threads of the collar. The collar is attached to the injector body with a groove and snap ring configuration.

    摘要翻译: 优选用于燃料喷射器的电动执行器子组件包括外螺纹铁磁金属体,内螺纹套环,电致动器,电连接器和塑料盖。 在一个实施例中,电致动器是螺线管,而在第二实施例中使用压电致动器。 电致动器直接控制定位在金属体和喷射器主体之间的先导阀构件,以及打开或关闭喷射器底部的喷嘴出口的针阀。 电致动器子组件通过将金属体的外螺纹与套环的内螺纹相配合而连接到燃料喷射器主体。 套环通过凹槽和卡环配置连接到喷射器主体。

    Emissions controller method and system

    公开(公告)号:US06609494B2

    公开(公告)日:2003-08-26

    申请号:US09882690

    申请日:2001-06-15

    IPC分类号: F02B500

    摘要: The present invention provides a method and system to control emissions in an engine by controlling spray plume characteristics, such as length and angle. Specifically, a system implementing the present invention includes an fuel injector, an engine cylinder and an electronic control module (ECM). The ECM determines spray plume parameters, including time from start of injection, nozzle hole diameter, pressure differential between the cylinder and fuel in the fuel injector nozzle, and gas temperature and density in the cylinder. Upon determining the spray plume parameters, the ECM calculates the spray plume characteristics and compares them to the optimal spray plume characteristics. The ECM then proceeds to adjust fuel injection characteristics, such as injection on time, rail pressure, and injection timing relative to piston position, to optimize the spray plume.