High efficiency compression ignition aftertreatment devices for combined use of lean-burn combustion systems and three-way catalysts
    2.
    发明授权
    High efficiency compression ignition aftertreatment devices for combined use of lean-burn combustion systems and three-way catalysts 有权
    用于组合使用稀燃燃烧系统和三元催化剂的高效压缩点火后处理装置

    公开(公告)号:US06543398B1

    公开(公告)日:2003-04-08

    申请号:US09907617

    申请日:2001-07-19

    IPC分类号: F02B3322

    摘要: A high efficiency compression ignition after-treatment system of a combustion engine includes a first combustion chamber adapted to reciprocatably receive a first piston assembly and a second combustion chamber adapted to reciprocatably receive a second piston assembly. A combustion exhaust passage is coupled between the first and the second combustion chambers. A fuel passage may be connected to the first combustion chamber, and a fuel passage connected to the second combustion chamber. A processed exhaust passage is coupled to the second combustion chamber for receiving the processed exhaust therethrough. A fuel injector is coupled to the second combustion chamber. A three-way catalyst has an inlet coupled to the processed exhaust passage and an outlet coupled to an exhaust passage. An exhaust gas oxygen sensor is connected to the processed exhaust passage. A fuel controller is coupled to the fuel injector and the exhaust gas oxygen sensor.

    摘要翻译: 内燃机的高效压缩点火后处理系统包括适于可往复运动地容纳第一活塞组件的第一燃烧室和适于可往复运动地容纳第二活塞组件的第二燃烧室。 燃烧排气通道联接在第一和第二燃烧室之间。 燃料通道可以连接到第一燃烧室和连接到第二燃烧室的燃料通道。 经处理的废气通道联接到第二燃烧室,用于接收经处理的废气。 燃料喷射器联接到第二燃烧室。 三元催化剂具有联接到经处理的排气通道的入口和连接到排气通道的出口。 废气氧传感器连接到经处理的废气通道。 燃料控制器联接到燃料喷射器和废气氧传感器。

    Stratified charge gasoline direct injection systems using exhaust gas recirculation
    4.
    发明授权
    Stratified charge gasoline direct injection systems using exhaust gas recirculation 有权
    使用废气再循环的分层汽油直喷系统

    公开(公告)号:US07822531B2

    公开(公告)日:2010-10-26

    申请号:US12111010

    申请日:2008-04-28

    摘要: An aspect of the present disclosure relates to a method and system for reducing emissions and improving knock-tolerance in an engine. Air, including exhaust gas present at levels greater than 20% by total air mass, may be introduced into a combustion chamber having a volume including a piston and a cylinder head. A first amount of fuel and a second amount of fuel may be directly injected into the combustion chamber at various points during the cycle, wherein the ratio of the air, including the exhaust gas, to the first and second amounts of fuel is 14.0:1 to 15.0:1. The first and second amounts of fuel may then be ignited. An electronic control unit may be utilized to time the injections and control the introduction of exhaust gas.

    摘要翻译: 本公开的一个方面涉及一种用于减少发动机的排放和改善爆震公差的方法和系统。 包括以总空气质量大于20%的废气的空气可以被引入到具有活塞和气缸盖的体积的燃烧室中。 可以在循环期间的各个点处将第一量的燃料和第二量的燃料直接喷射到燃烧室中,其中包括废气在内的空气与第一和第二燃料量之比为14.0:1 至15.0:1。 然后可以点燃第一和第二量的燃料。 可以使用电子控制单元来对喷射进行定时和控制排气的引入。

    Multi-zone combustion chamber for combustion rate shaping and emissions control in premixed-charge combustion engines
    5.
    发明授权
    Multi-zone combustion chamber for combustion rate shaping and emissions control in premixed-charge combustion engines 有权
    用于预混合燃烧发动机的燃烧速率成形和排放控制的多区域燃烧室

    公开(公告)号:US06708666B2

    公开(公告)日:2004-03-23

    申请号:US09974210

    申请日:2001-10-10

    IPC分类号: F02B1912

    CPC分类号: F02B23/08 Y02T10/125

    摘要: An apparatus and method for improving efficiency of combustion engines. At least two combustion chambers are provided by contouring the surface of a piston or a cylinder head or a combination thereof. Such a contoured piston or cylinder head controls the peak temperature and pressure in order to combust the mixture efficiently, to increase power generated, and to decrease the amount of unused mixture exhausted from the combustion chamber. With the ability to control the peak pressure, the ignition plug can be fired at advanced ignition timing, thereby extending its life. The chambers are also designed to control flame propagation speed to reduce knock. Additionally, the chambers can also decrease the amount of pollutants such as NOx produced during combustion.

    摘要翻译: 一种提高内燃机效率的装置和方法。 通过对活塞或气缸盖的表面或其组合进行轮廓设计来提供至少两个燃烧室。 这种轮廓的活塞或气缸盖控制峰值温度和压力以有效地燃烧混合物,以增加产生的功率,并减少从燃烧室排出的未使用的混合物的量。 具有控制峰值压力的能力,火花塞可以在高温点火正时点火,从而延长其使用寿命。 这些室还设计用于控制火焰传播速度以减少爆震。 此外,这些室还可以减少燃烧期间产生的NOx等污染物的量。

    Benchtop test system for testing spark plug durability
    6.
    发明授权
    Benchtop test system for testing spark plug durability 有权
    用于测试火花塞耐久性的台式测试系统

    公开(公告)号:US07495447B2

    公开(公告)日:2009-02-24

    申请号:US11513547

    申请日:2006-08-31

    IPC分类号: F02P17/00

    CPC分类号: F02P17/00 H01T13/58

    摘要: A method and system for evaluating the durability of spark plugs. A test system simulates the pressure, temperature, and exhaust flow of an internal combustion engine, and has a test chamber in which these simulated conditions exist. A number of spark plugs are installed in the test chamber and are cycled through a desired ignition cycle. The test chamber temperature and pressure may be precisely controlled, as well as the duty cycle of spark events.

    摘要翻译: 一种用于评估火花塞耐久性的方法和系统。 一个测试系统模拟内燃机的压力,温度和排气流量,并具有这些模拟条件存在的测试室。 许多火花塞安装在测试室中并循环通过所需的点火循环。 测试室的温度和压力可以精确控制,以及火花事件的占空比。