Bottom seated pintle nozzle
    1.
    发明授权
    Bottom seated pintle nozzle 失效
    底座枢轴喷嘴

    公开(公告)号:US5853124A

    公开(公告)日:1998-12-29

    申请号:US851476

    申请日:1997-05-05

    IPC分类号: F02M61/06 F02M61/18 F02M3/08

    CPC分类号: F02M61/06 F02M61/18

    摘要: A pintle nozzle, preferably an unthrottled pintle nozzle, is provided in which a negative interference angle is formed between the conical tip of the nozzle needle and the mating conical valve seat so that the needle seat is located at the bottom of the valve seat rather than at the top. The resulting nozzle lacks any velocity drop downstream of the needle seat, even at very low needle lifts, so that virtually all of the energy used to pressurize the fuel is converted to kinetic energy. Spray dispersion and penetration at low needle lifts therefore are significantly enhanced. Fuel flow through the converging-diameter discharge passage located between the conical needle tip and conical needle seat also self-centers the nozzle needle at low lifts, thereby helping to assure a symmetric spray and to further enhance spray characteristics. These and other advantages render the nozzle particularly useful for applications which require very small injection quantities such as the injection of fuel into small two-stroke gasoline engines or into pilot-ignited gas-fueled engines.

    摘要翻译: 提供了一种枢轴喷嘴,优选为无节流的枢轴喷嘴,其中在喷嘴针的锥形尖端和配合锥形阀座之间形成负干涉角,使得针座位于阀座的底部,而不是 在顶部。 所得到的喷嘴在针座的下游没有任何速度下降,即使在非常低的针升降机上,因此几乎所有用于加压燃料的能量都被转换成动能。 因此,在低针电梯处的喷雾分散和渗透显着增强。 通过位于锥形针尖和圆锥形针座之间的会聚直径排出通道的燃料流动也使喷嘴针在低升程中自中心,从而有助于确保对称喷雾并进一步增强喷雾特性。 这些和其它优点使得喷嘴对于需要非常小的喷射量的应用特别有用,例如将燃料喷射到小型二冲程汽油发动机或引燃点燃的燃气发动机中。

    Method and apparatus for controlling fuel injection in an internal
combustion engine
    3.
    发明授权
    Method and apparatus for controlling fuel injection in an internal combustion engine 失效
    用于控制内燃机中的燃料喷射的方法和装置

    公开(公告)号:US5685273A

    公开(公告)日:1997-11-11

    申请号:US692241

    申请日:1996-08-07

    摘要: Fuel delivery to an engine from a cyclically pressurizable, electronically controlled accumulator-type fuel injector is controlled by "wasting" at least a portion of the pressurization stroke of the engine's high pressure pump so that a designated portion of the pressurization stroke of the pump does not result in accumulator cavity pressurization. Metering is effected simply by extending the period that the system's existing solenoid vent valve is open into a portion of the succeeding pressurization stroke of the pump so that a portion of the pumped fuel flows directly to vent. Additional electrical load on the engine can be minimized by using a latching type solenoid valve as the vent valve. The metering scheme 1) is more precise than metering schemes heretofore available for injectors of the disclosed type, 2) does not adversely effect injection timing or other injection parameters, 3) and requires no additional hardware.

    摘要翻译: 通过“浪费”发动机的高压泵的至少一部分加压行程来控制来自循环加压的电子控制的蓄电池式燃料喷射器到发动机的燃料,使得泵的加压行程的指定部分 不会导致蓄能器腔加压。 通过将系统现有的电磁阀通气阀打开的时间延长到泵的后续加压行程的一部分,使得一部分泵送的燃料直接流到排气口来进行计量。 通过使用闭锁型电磁阀作为排气阀,能够使发动机上的附加电力负载最小化。 计量方案1)比迄今为止可用于所公开类型的喷射器的计量方案更精确,2)不会不利地影响喷射正时或其它喷射参数,3)并且不需要额外的硬件。

    Electronic fuel injection system for internal combustion engines having
a common intake port for each pair of cylinders
    5.
    发明授权
    Electronic fuel injection system for internal combustion engines having a common intake port for each pair of cylinders 失效
    用于内燃机的电子燃料喷射系统,其具有用于每对气缸的公共进气口

    公开(公告)号:US5477830A

    公开(公告)日:1995-12-26

    申请号:US177630

    申请日:1993-12-30

    摘要: An internal combustion engine has a common shared intake port for each pair of cylinders and having a primary fuel injection system capable of controlling very precisely the distribution of fuel into each cylinder by controlling the duration and timing of each injection pulse. A common fuel injector is provided for each shared intake port and is controlled so as to inject fuel into the shared intake port only during the specific intake strokes of individual cylinders. Each injector preferably takes the form of an electronic fuel injector coupled to a controller receiving signals from engine mounted sensors such as a crank angle indicator. Such electronic control permits very precise control of the duration and timing of the fuel injection pulse and also enables other injection strategies such as a skip-fire operation in which fuel injection is withheld during selected intake strokes of selected cylinders, thereby eliminating firing cycles corresponding to the selected intake strokes. The fuel injection system is usable with both compression ignition and spark ignition engines and may employ additional primary injectors and/or liquid fuel pilot injectors.

    摘要翻译: 内燃机具有用于每对气缸的公共共用进气口,并且具有能够通过控制每个喷射脉冲的持续时间和定时来非常准确地控制燃料分配到每个气缸中的主燃料喷射系统。 为每个共用进气口设置一个共同的燃料喷射器,并且被控制成仅在单个气缸的特定进气冲程期间将燃料喷射到共用进气口中。 每个喷射器优选地采用耦合到控制器的电子燃料喷射器的形式,其接收来自诸如曲柄角指示器的发动机安装的传感器的信号。 这种电子控制允许对燃料喷射脉冲的持续时间和定时的非常精确的控制,并且还能够实现其它喷射策略,例如在所选气缸的选定进气冲程期间停止燃料喷射的跳火操作,从而消除对应于 所选进气冲程。 燃料喷射系统可用于压缩点火和火花点火发动机,并且可以使用附加的主喷射器和/或液体燃料引燃喷射器。

    Package
    9.
    发明授权
    Package 失效

    公开(公告)号:US5168996A

    公开(公告)日:1992-12-08

    申请号:US700255

    申请日:1991-05-15

    IPC分类号: B65D5/50 H05K13/00

    摘要: A package comprising a sheet of self-supporting material. The sheet has at least one opening therein. The opening is spaced from the edges of the sheet and is filled with a plug. In specific embodiments, the plug may be of a permeable material to which an item such as an electronic component may be adhered by its pins or may be adhered or the plug may be the item to be shipped itself. In other specific embodiments, the plug and item to be shipped may extend from the sheet in one direction or in both directions. A flexible film layer is overlayed the item and sheet and is secured both to the sheet and to the plug. In a specific embodiment, the sheet is then placed within a carton. The plug either spaces the sheet from the exterior of the carton or overlays the exterior of the carton. The sheet spans the item from the exterior of the carton. The carton may include a plurality of sheets. Each sheet may include a plurality of openings in staggered rows and columns and a plurality of sheets may be stacked with the film layers facing each other with the items spaced from each other and the carton to give maximum protection to the parts shipped.

    摘要翻译: 一种包括自支撑材料片的包装。 片材中至少有一个开口。 开口与片材的边缘间隔开并且填充有塞子。 在具体实施方案中,插塞可以是可渗透材料,诸如电子部件的物品可以通过其销钉粘附或可以被粘合到该可渗透材料上,或者插塞可以是要运输的物品本身。 在其他具体实施例中,待运输的插头和物品可以从片材沿一个方向或两个方向延伸。 将柔性膜层覆盖在物品和片材上,并将其固定到片材和插头上。 在一个具体实施例中,然后将纸张放置在纸箱内。 插头可以将纸张从纸箱的外部放置或者与纸箱的外部重叠。 纸张从纸箱的外部跨越物品。 纸箱可以包括多个片材。 每个片材可以包括交错的行和列中的多个开口,并且多个片材可以堆叠成使得膜层彼此面对并具有彼此间隔开的物品和纸箱,以对运送的部件提供最大的保护。