Engine braking utilizing unit valve actuation
    1.
    发明授权
    Engine braking utilizing unit valve actuation 失效
    使用单元阀致动的发动机制动

    公开(公告)号:US5255650A

    公开(公告)日:1993-10-26

    申请号:US891597

    申请日:1992-06-01

    摘要: Braking systems for use with internal combustion engine have in the past used a variety of mechanical mechanisms to activate the braking system in addition to the conventional cam, lifters, pushrods and rocker arms. Many of these systems fail to provide the option of controllably and modulatively varying the sequence and amount of the opening and closing of an intake or exhaust valve relative to a piston position in a cylinder bore. The present invention provides an electronic control system outputting an discrete control signal, an opening device for unit actuation of each of the pair of valves independently. The electronic control system is programmable to respond in a first predetermined logic pattern for conventional operation of the engine at which time each of the pair of valves are in the closed position during the compression stroke. The electronic control system is programmable to a second predetermined logic pattern to vary the operation of the valves associated with the respective bore in the generally open position during the compression stroke when the piston in near the top dead center position. The preestablished logic pattern controllably, sequentially and modulateably actuate the device for unit actuation, moving each of the valves independently between the open and closed position to effectively resist the movement of a piston from a bottom dead center position to a top dead center position.

    摘要翻译: 除了常规的凸轮,升降器,推杆和摇臂之外,用于内燃机的制动系统在过去使用了各种机械机构来激活制动系统。 这些系统中的许多不能提供可选地和模态地改变进气门或排气门相对于气缸孔中的活塞位置的打开和关闭的顺序和量的选择。 本发明提供一种输出离散控制信号的电子控制系统,用于单独地对该一对阀中的每一个进行单元驱动的打开装置。 电子控制系统可编程为以第一预定逻辑模式响应于发动机的常规操作,在该时间期间,一对阀门在压缩冲程期间处于关闭位置。 当活塞靠近上止点位置时,电子控制系统可编程为第二预定逻辑模式,以改变在压缩冲程期间在大致打开位置处与相应孔相关联的阀的操作。 预先建立的逻辑图形可控地,顺序地和可调制地致动装置用于单元致动,在打开和关闭位置之间独立地移动每个阀,以有效地抵抗活塞从下死点位置运动到上止点位置。

    Method and apparatus for starting an engine utilizing unit valve
actuation
    2.
    发明授权
    Method and apparatus for starting an engine utilizing unit valve actuation 失效
    使用单元阀致动来起动发动机的方法和装置

    公开(公告)号:US5251590A

    公开(公告)日:1993-10-12

    申请号:US891617

    申请日:1992-06-01

    CPC分类号: F01L13/04 F02N7/08 F02B3/06

    摘要: Starting systems for use with internal combustion engine have in the past used a variety of add on mechanical mechanisms to provide cold starting. Many of these systems fail to provide the option of controllably and modulatively varying the sequence and amount of the opening and closing of an intake or exhaust valve relative to a piston position in a cylinder bore. The present invention provides an electronic control system outputting an discrete control signal, and an opening device for unit actuation of each of the pair of valves independently. The electronic control system is programmable to respond in a first predetermined logic pattern for conventional operation of the engine at which time each of the pair of valves is in the open position during the exhaust stroke. The electronic control system is programmable to a second predetermined logic pattern to vary the operation of the valves associated with the respective bore in the generally closed position for a portion of the exhaust stroke before top dead center during the exhaust stroke of the piston. The preestablished logic pattern controllably, sequentially and modulateably actuate the device for unit actuation, moving each of the valves independently between the open and closed position to effectively increase the heat within the during the movement of a piston from a bottom dead center position to a top dead center position.

    摘要翻译: 用于内燃机的起动系统在过去使用了各种机械机构来提供冷起动。 这些系统中的许多不能提供可选地和模态地改变进气门或排气门相对于气缸孔中的活塞位置的打开和关闭的顺序和量的选择。 本发明提供一种输出离散控制信号的电子控制系统和用于单独地对该一对阀中的每一个进行单元驱动的打开装置。 电子控制系统可编程为以第一预定逻辑模式响应于发动机的常规操作,在该时间期间,一对阀门在排气冲程期间处于打开位置。 电子控制系统可编程为第二预定逻辑模式,以在活塞的排气冲程期间,在上止点之前的排气冲程的一部分在大致闭合位置改变与相应孔相关联的阀的操作。 预先建立的逻辑图案可控制地,顺序地和可调制地致动装置,用于单元致动,在打开和关闭位置之间独立地移动每个阀,以有效地增加在活塞从下止点位置运动到顶部期间的热量 死中心位置。

    Method and apparatus to reduce engine combustion noise utilizing unit
valve actuation
    3.
    发明授权
    Method and apparatus to reduce engine combustion noise utilizing unit valve actuation 失效
    利用单元阀致动来减少发动机燃烧噪声的方法和装置

    公开(公告)号:US5203830A

    公开(公告)日:1993-04-20

    申请号:US891613

    申请日:1992-06-01

    摘要: An annoying problem with diesel engines is combustion noise especially under high speed, low load conditions. The problem is caused by the relatively long ignition delay period or the period of time from the start of fuel injection into the combustion chamber until ignition occurs. The length of the ignition delay period influences the severity of the noise produced as it determines the amount of fuel that is ready to be burned. The length of the ignition delay period is strongly dependent on cylinder gas temperature during the initial part of the fuel injection schedule. The present invention provides an apparatus to reduce the ignition delay period by elevating the temperature of the air in a selected one of the combustion chambers so that at the start of the compression stroke the air is elevated reducing the ignition delay period.

    摘要翻译: 柴油发动机的一个令人讨厌的问题是燃烧噪声,特别是在高速,低负载条件下。 该问题是由较长的点火延迟期或从燃料喷射开始到燃烧室直到发生点火的时间段引起的。 点火延迟时间的长短会影响产生的噪音的严重程度,因为它决定了准备燃烧的燃料量。 点火延迟时间的长短很大程度上取决于在燃料喷射计划的初始部分期间的气缸温度。 本发明提供了一种通过提高所选择的一个燃烧室中的空气的温度来减少点火延迟时间的装置,使得在压缩冲程开始时,空气升高,从而降低点火延迟时间。

    FLUID INJECTION LANCE WITH BALANCED FLOW DISTRIBUTION
    5.
    发明申请
    FLUID INJECTION LANCE WITH BALANCED FLOW DISTRIBUTION 审中-公开
    流体注射用平衡流分配

    公开(公告)号:US20130152555A1

    公开(公告)日:2013-06-20

    申请号:US13327166

    申请日:2011-12-15

    IPC分类号: F01N3/24

    摘要: An injector configured to introduce a reductant into an exhaust stream, the injector includes: a body including a conduit with a first diameter, a nozzle fluidly coupled to the conduit and disposed at a distal end of the body, and an extension extending from the distal end of the body, the extension extending from the distal end of the body by at least a distance equal to the first diameter.

    摘要翻译: 一种被配置成将还原剂引入排气流的注射器,所述注射器包括:主体,其包括具有第一直径的管道,流体地联接到所述导管并且设置在所述主体的远端处的喷嘴,以及从所述远端延伸的延伸部 身体的端部延伸,从身体的远端延伸至少等于第一直径的距离。