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    • 2. 发明授权
    • Fuel igniter and head for use in diesel engines and related systems and methods
    • 燃油点火器和头用于柴油发动机及相关系统和方法
    • US06739308B1
    • 2004-05-25
    • US10155473
    • 2002-05-24
    • John M. Curtis
    • John M. Curtis
    • F02B1908
    • F02B23/0654F02B3/06F02B23/0621F02B23/0627F02B23/0669F02B23/0696F02B2023/0612F02B2275/14Y02T10/123Y02T10/125
    • The present invention provides a piston for a diesel engine that reduces emissions generated during the combustion of fuel in a combustion chamber and a head that allows more air to flow into and out of the combustion chamber. The piston includes an igniter that ignites fuel injected into the combustion chamber and a piston bowl. The piston bowl agitates air in the combustion chamber to quickly mix the fuel and air before the igniter ignites the fuel and to reduce carbon build-up from unburned fuel in the combustion chamber. By igniting the fuel shortly after it is injected into the combustion chamber, the igniter reduces the time between injection and combustion of the fuel in the combustion chamber. Thus, the amount of NOx produced during combustion is reduced. Furthermore, injection of the fuel can commence when the piston is closer to top dead center and thus more power can be generated. By allowing more air to flow into and out of the combustion chamber, the amount of unburned fuel in the combustion chamber is reduced and thus the amount of particulates produced during combustion is reduced.
    • 本发明提供了一种用于柴油发动机的活塞,该活塞减少了在燃烧室内的燃料燃烧期间产生的排放物和允许更多空气流入和流出燃烧室的头部。 活塞包括点燃器,其点燃喷射到燃烧室中的燃料和活塞碗。 在点火器点燃燃料之前,活塞碗搅动燃烧室中的空气以快速混合燃料和空气,并且减少燃烧室中的未燃烧燃料的碳积聚。 通过在将燃料喷入燃烧室后不久点燃燃料,点火器减少了燃烧室内燃料的喷射和燃烧之间的时间。 因此,燃烧时产生的NOx的量减少。 此外,当活塞更靠近上止点时,可以开始注入燃料,从而可以产生更多的功率。 通过允许更多的空气流入和流出燃烧室,燃烧室中未燃燃料的量减少,因此燃烧过程中产生的微粒量减少。