Control strategy for turbocharged engine having variable valve actuation apparatus
    3.
    发明授权
    Control strategy for turbocharged engine having variable valve actuation apparatus 有权
    具有可变气门致动装置的涡轮增压发动机的控制策略

    公开(公告)号:US06434938B1

    公开(公告)日:2002-08-20

    申请号:US09906487

    申请日:2001-07-16

    IPC分类号: F02D2300

    摘要: A turbocharger (32) creates intake manifold boost for a diesel engine (10). At times, exhaust valve opening is increasingly retarded in relation to the engine operating cycle to cause the turbocharger to increase boost, engine fueling is also increased in relation to the increased boost, and in response to any incipient surging of the compressor resulting from such increasingly retarded exhaust valve opening and such increased engine fueling, compressed charge air is bled from the intake manifold to counter the incipient surging and thereby avoid any significant turbocharger surge.

    摘要翻译: 涡轮增压器(32)为柴油发动机(10)产生进气歧管增压。 有时,相对于发动机运转循环,排气门开度越来越多地延迟,使得涡轮增压器增加增压,发动机加油也相对于增加的升压而增加,并且响应于由于这种日益增加的压缩机的任何初期浪涌 延迟排气阀开口和这种增加的发动机加油,压缩的增压空气从进气歧管排出,以抵抗初期的浪涌,从而避免任何显着的涡轮增压器浪涌。

    Control strategy for improving cold cranking, starting, and warm-up of an engine having a variable valve actuation mechanism
    4.
    发明授权
    Control strategy for improving cold cranking, starting, and warm-up of an engine having a variable valve actuation mechanism 有权
    用于改进具有可变气门致动机构的发动机的冷起动,启动和预热的控制策略

    公开(公告)号:US06651601B2

    公开(公告)日:2003-11-25

    申请号:US10115193

    申请日:2002-04-02

    IPC分类号: F02N1700

    摘要: A control (30) embodies an operating strategy (50) to facilitate engine cranking and starting via control of timing of cylinder intake (18) and exhaust (24) valve opening using a variable valve actuation mechanism (26). Prior to fueling any cylinder (16), the engine (10) is cranked while the variable valve actuation mechanism causes pistons (32) to operate at an initial effective compression ratio for initial cranking that is less than an effective compression ratio for running when the engine is eventually fueled and runs under its own power. Thereafter, and still before fueling, they are caused to operate at an increased effective compression ratio, and still thereafter, a portion of their charges are drawn from the exhaust system (22). As the engine warms up, valve timing is adjusted.

    摘要翻译: 控制器(30)体现了使用可变气门致动机构(26)通过控制气缸进气(18)和排气(24)阀打开的时间来促进发动机起动和起动的操作策略(50)。 在加油任何气缸(16)之前,发动机(10)被起动,而可变气门致动机构使活塞(32)以初始起动的初始有效压缩比运行,该初始起动压缩比小于用于运行的有效压缩比 发动机最终燃起并运行在自己的力量下。 此后,在燃料供给之前,仍然以增加的有效压缩比运转,此后,其一部分电荷从排气系统(22)抽出。 随着发动机升温,气门正时调整。

    Method and apparatus for pre-pilot fuel injection in diesel internal combustion engines
    5.
    发明授权
    Method and apparatus for pre-pilot fuel injection in diesel internal combustion engines 有权
    柴油机内燃机预燃燃油喷射的方法和装置

    公开(公告)号:US06378487B1

    公开(公告)日:2002-04-30

    申请号:US09653469

    申请日:2000-09-01

    IPC分类号: F02B1700

    摘要: A method and apparatus for injecting fuel into a diesel engine combustion chamber is provided wherein a pre-pilot injection is injected sufficiently prior to critical mass conditions being achievable to permit vaporization and formation of a substantially homogenous mixture before a critical mass exists. Preferably, a pilot injection is injected after the pre-pilot injection but at or before a point wherein a critical mass based on the pre-pilot quantity. This will result in a reduced heat release rate will result in a slower, smoother and more controlled build up of pressure in a combustion chamber and thereby advantageously reduce combustion noise.

    摘要翻译: 提供了一种用于将燃料喷射到柴油发动机燃烧室中的方法和装置,其中在临界质量条件可以实现之前充分注入先导先导喷射以在临界质量存在之前允许气化和形成基本均匀的混合物。 优选地,在先导先导喷射之前,但是在基于前导向量的临界质量的点之前或之前喷射先导喷射。 这将导致降低的放热速率将导致较慢,更平滑和更受控制的燃烧室中的压力增加,从而有利地降低燃烧噪声。

    Control strategy using variable valve actuation to reduce particulate emission and improve driveability during transient operation of a turbocharged diesel engine
    6.
    发明授权
    Control strategy using variable valve actuation to reduce particulate emission and improve driveability during transient operation of a turbocharged diesel engine 有权
    使用可变气门致动以减少颗粒物排放并提高涡轮增压柴油发动机瞬态运行期间的驾驶性能的控制策略

    公开(公告)号:US06658845B1

    公开(公告)日:2003-12-09

    申请号:US10223853

    申请日:2002-08-20

    申请人: Jinhui Sun Xinqun Gui

    发明人: Jinhui Sun Xinqun Gui

    IPC分类号: F02D2300

    摘要: An internal combustion engine (10) has an intake system (12) that includes a turbocharger (32). An engine control (30) processes data for controlling the opening of the exhaust valves (24) and for controlling fueling of the engine in relation to the engine operating cycle. In response to initiation of engine acceleration, the control increasingly retards exhaust valve opening in relation to the engine operating cycle to cause the turbocharger to increase pressure in the intake manifold (14) and increases engine fueling in relation to the increased pressure in the intake manifold.

    摘要翻译: 内燃机(10)具有包括涡轮增压器(32)的进气系统(12)。 发动机控制装置(30)处理用于控制排气门(24)打开的数据和用于控制发动机相对于发动机运转循环的燃料供给。 响应于发动机加速的启动,控制相对于发动机操作循环越来越多地阻止排气门开口,以使涡轮增压器增加进气歧管(14)中的压力,并相对于进气歧管中增加的压力增加发动机加油 。

    Control strategy for counteracting incipient turbocharger surging using a variable valve actuation mechanism for through-cylinder bleed
    7.
    发明授权
    Control strategy for counteracting incipient turbocharger surging using a variable valve actuation mechanism for through-cylinder bleed 有权
    使用可变阀致动机构抵消初始涡轮增压器浪涌的控制策略,用于通过气缸流失

    公开(公告)号:US06647723B1

    公开(公告)日:2003-11-18

    申请号:US10224132

    申请日:2002-08-20

    申请人: Jinhui Sun Xinqun Gui

    发明人: Jinhui Sun Xinqun Gui

    IPC分类号: F02D2300

    摘要: A turbocharger (32) creates intake manifold boost for a diesel engine (10) that has a variable valve actuation mechanism. At times, exhaust valve opening (EVO) is increasingly retarded in relation to the engine operating cycle (56) to cause the turbocharger to increase boost, engine fueling is also increased in relation to the increased boost (58), and in response to any incipient surging of the compressor resulting from such increasingly retarded exhaust valve opening and such increased engine fueling, compressed charge air is bled from the intake manifold through the combustion chambers to the exhaust system (62) to counter the incipient surging and thereby avoid any significant turbocharger surge. The bleeding is accomplished by keeping the exhaust valves (24) slightly open beyond the time that they would otherwise close.

    摘要翻译: 涡轮增压器(32)为具有可变气门致动机构的柴油发动机(10)产生进气歧管增压。 有时,相对于发动机运转循环(56),排气门开度(EVO)越来越多地延迟,以使涡轮增压器增加增压,发动机加油也相对于增加的升压(58)而增加,并且响应任何 由于这种日益延迟的排气门开启引起的压缩机的初期浪涌和这种增加的发动机燃料供应,压缩的增压空气从进气歧管通过燃烧室排放到排气系统(62)以抵消初始浪涌,从而避免任何显着的涡轮增压器 浪涌。 通过将排气阀(24)稍微打开超过其否则关闭的时间来实现渗出。

    Governor plate apparatus
    8.
    发明授权
    Governor plate apparatus 有权
    调速板装置

    公开(公告)号:US06978943B2

    公开(公告)日:2005-12-27

    申请号:US10060597

    申请日:2002-01-30

    摘要: A flow controller assembly for use with a hydraulically-actuated, electrically-controlled fuel injector, includes a flow controller fluidly disposable intermediate an injector control valve assembly and an injector intensifier assembly for controlling flow of actuating fluid to and from the intensifier assembly to effect rate shaping of an injectable quantity of fuel and to effect a reduction of noise generated by the stopping of return motion of an intensifier piston. A fuel injector and a method of controlling an intensifier piston are also included.

    摘要翻译: 一种与液压致动的电控燃料喷射器一起使用的流量控制器组件包括流体控制器,其可流动地一次性地中间在喷射器控制阀组件和喷射器增强器组件中,用于控制致动流体流向和来自增压器组件的流动以实现速率 成形可注射量的燃料并且实现由于停止增压活塞的返回运动而产生的噪音的降低。 还包括燃料喷射器和控制增压活塞的方法。

    Piston having combustion chamber defined in the crown
    9.
    发明授权
    Piston having combustion chamber defined in the crown 有权
    活塞内有燃烧室,定义在表冠上

    公开(公告)号:US06513476B1

    公开(公告)日:2003-02-04

    申请号:US09933407

    申请日:2001-08-20

    IPC分类号: F02B300

    摘要: A combustion chamber assembly for use in a diesel engine includes a combustion chamber being defined in a crown of a piston, the piston having a central axis, the combustion chamber having a center portion being elevated relative to a bottom plane of the combustion chamber. The center portion is defined in part by a portion of a sphere, the sphere having a radius, the origin of the radius lying on the combustion chamber central axis. The combustion chamber further has an outer margin, the outer margin being defined in part by a portion of a sphere, the sphere having a radius, the origin of the radius lying on the combustion chamber central axis and being greater than the center portion radius. The spherical center portion and the spherical outer margin are connected by an annular surface. And, the combustion chamber has a plurality of curved surfaces having smooth tangential transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion and the spherical outer margin in combination with the annular surface. A piston incorporating the aforementioned combustion chamber and a method of forming the combustion chamber are further included.

    摘要翻译: 用于柴油发动机的燃烧室组件包括限定在活塞顶部的燃烧室,活塞具有中心轴线,燃烧室具有相对于燃烧室底面升高的中心部分。 中心部分部分地由球体的一部分限定,球体具有半径,半径的原点位于燃烧室中心轴线上。 燃烧室还具有外边缘,外边缘部分地由球体的一部分限定,球体具有半径,半径的原点位于燃烧室中心轴线上并且大于中心部分半径。 球形中心部分和球形外缘通过环形表面连接。 并且,燃烧室具有在相邻的光滑表面之间具有平滑的切向过渡的多个弯曲表面,光滑表面包括与环形表面组合的球形中心部分和球形外部边缘。 还包括一个结合上述燃烧室的活塞和形成燃烧室的方法。