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    Plasma jet ignition engine and method
    4.
    发明授权
    Plasma jet ignition engine and method 失效
    等离子喷射点火发动机及方法

    公开(公告)号：US3921605A

    公开(公告)日：1975-11-25

    申请号：US52502874

    申请日：1974-11-18

    Applicant: GEN MOTORS CORP

    Inventor： WYCZALEK FLOYD A

    IPC: F02P13/00 ,  F02B1/04 ,  F02B19/12 ,  F02P23/00 ,  F02P1/00 ,  H01T13/20

    CPC classification number: F02B19/12 ,  F02B1/04 ,  Y02T10/125

    Abstract: A blind cavity precombustion chamber engine has a plasma jet ignition system including a spark plug for each cylinder having an extended electrode with its spark gap located in the turbulent gas zone between the center of the prechamber and the mouth of a restricted orifice connecting the cavity with the main combustion chamber. A high energy ignition system is included which causes a sustained high current arc at the spark gap that avoids arc blowout and is capable of ionizing and igniting very lean turbulent air-fuel mixtures. The sustained arc initiates and continues combustion in the prechamber, raising its pressure and expelling burning gases through the orifice into the main chamber. The arc may be maintained for a period sufficient to further ionize the gases as they move through the arc and into the main chamber to create a plasma torch or jet of burning products that ignites the lean mixture in the main chamber. In one embodiment, a higher level of energy is created in the combustion products being expelled from the blind chamber by discharging a high current across the spark gap at the time the burning gases are being expelled through the orifice, thus further ionizing the gases and creating a higher energy plasma of burning and burned gases that is expelled into the main chamber to ignite the mixture therein.

    Abstract translation: 盲腔预燃室发动机具有等离子体喷射点火系统，其包括用于每个气缸的火花塞，其具有延伸电极，其火花隙位于预燃室中心与限制孔之间的湍流气体区域中， 主燃烧室。 包括高能点火系统，其在火花隙处引起持续的高电流电弧，以避免电弧爆裂并且能够电离和点燃非常贫湍流的空气 - 燃料混合物。 持续电弧在预燃室中启动并继续燃烧，提高其压力并将燃烧的气体通过孔排出到主室中。 电弧可以保持足够长的时间，以便气体在它们移动通过电弧并进入主室时进一步电离，以产生点燃主室中的贫混合物的等离子体焰炬或燃烧产物射流。 在一个实施例中，通过在燃烧气体通过孔口排出时，通过在火花间隙上排出高电流，在燃烧产物中产生更高水平的能量，从而进一步电离气体并产生 燃烧和燃烧的气体的较高能量的等离子体被排出到主室以点燃其中的混合物。

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