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    Piston having combustion bowl shaped to balance combustion efficiency and emission properties
    2.
    发明授权
    Piston having combustion bowl shaped to balance combustion efficiency and emission properties 有权
    具有燃烧碗形状以平衡燃烧效率和排放性能的活塞

    公开(公告)号：US08978621B2

    公开(公告)日：2015-03-17

    申请号：US13088659

    申请日：2011-04-18

    申请人： William L. Easley ,  David A. Pierpont ,  Karthikeyan C. Venkatasubramaniam ,  John P. Timmons

    发明人： William L. Easley ,  David A. Pierpont ,  Karthikeyan C. Venkatasubramaniam ,  John P. Timmons

    IPC分类号： F02B23/06 ,  F02F3/26 ,  F02D21/08 ,  F02M25/07

    CPC分类号： F02B23/0624 ,  F02B23/0621 ,  F02B23/0669 ,  F02B23/0672 ,  F02B23/0693 ,  F02B2275/14 ,  F02D21/08 ,  F02F3/28 ,  F02M26/23 ,  Y02T10/123 ,  Y02T10/125

    摘要： A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston, and includes a profile of rotation defining a convex curve segment bisected by the longitudinal axis, and a plurality of concave curve segments outboard of the convex curve segment. The profile of rotation further includes a compound rim profile defining a plurality of convex curve segments corresponding to an inner rim surface. The convex curve segment of the compound bowl profile defines a relatively small radius of curvature, and the plurality of convex curve segments corresponding to the inner rim surface define a relatively large radius of curvature. The combustion face includes an abrupt transition from the compound bowl surface to the compound rim surface.

    摘要翻译： 压缩点火式内燃机的活塞包括具有限定燃烧碗的燃烧面的活塞体，燃烧面包括复合碗面和复合轮缘面。 燃烧面被成形以平衡活塞的燃烧效率性质与活塞的排放性质，并且包括限定由纵向轴线平分的凸曲线段的旋转轮廓，以及凸曲线外侧的多个凹曲线段 分割。 旋转轮廓还包括限定对应于内缘表面的多个凸曲线段的复合轮缘轮廓。 复合碗轮廓的凸曲线段限定了相对小的曲率半径，并且对应于内边缘表面的多个凸曲线段限定了相对较大的曲率半径。 燃烧面包括从复合碗表面到复合轮缘表面的突然过渡。

    Exhaust system having parallel asymmetric turbochargers and EGR
    3.
    发明授权
    Exhaust system having parallel asymmetric turbochargers and EGR 有权
    具有并联不对称涡轮增压器和EGR的排气系统

    公开(公告)号：US08297053B2

    公开(公告)日：2012-10-30

    申请号：US12222008

    申请日：2008-07-31

    申请人： John R. Gladden ,  David Andrew Pierpont ,  John P. Timmons

    发明人： John R. Gladden ,  David Andrew Pierpont ,  John P. Timmons

    IPC分类号： F02B33/44

    CPC分类号： F02B37/001 ,  F02B29/0425 ,  F02B37/007 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02M26/47 ,  Y02T10/144

    摘要： An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and a first turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and a second turbocharger driven by exhaust from the second exhaust manifold and having a different flow capacity than the first turbocharger. The exhaust system may further have an exhaust gas recirculation circuit in fluid communication with the second exhaust manifold.

    摘要翻译： 提供了一种用于内燃机的排气系统。 排气系统可以具有构造成接收来自发动机的排气的第一排气歧管和由第一排气歧管排出的第一涡轮增压器。 排气系统还可以具有第二排气歧管，其构造成从第一排气歧管并行地接收来自发动机的排气，以及第二涡轮增压器，其由来自第二排气歧管的排气驱动并具有与第一涡轮增压器不同的流动能力。 排气系统还可以具有与第二排气歧管流体连通的废气再循环回路。

    Method for controlled transition between use of different injection waveform types in a hydraulically-actuated electronically-controlled fuel injection system
    6.
    发明授权
    Method for controlled transition between use of different injection waveform types in a hydraulically-actuated electronically-controlled fuel injection system 失效
    在液压致动电子控制燃料喷射系统中使用不同喷射波形类型之间的控制转换方法

    公开(公告)号：US6026780A

    公开(公告)日：2000-02-22

    申请号：US993591

    申请日：1997-12-18

    申请人： Travis E. Barnes ,  Michael S. Lukich ,  Brian G. McGee ,  Daniel R. Puckett ,  John P. Timmons

    发明人： Travis E. Barnes ,  Michael S. Lukich ,  Brian G. McGee ,  Daniel R. Puckett ,  John P. Timmons

    IPC分类号： F02D41/38 ,  F02D41/40 ,  F02B3/04 ,  F02M37/00

    CPC分类号： F02D41/3827 ,  F02D41/402 ,  Y02T10/44

    摘要： A method for controlling transfer from use of a first injection waveform type to use of a second injection waveform type in a hydraulically-actuated electronically-controlled fuel injection system of an engine includes sensing an engine speed and an engine load when the first injection waveform type is selected and storing the sensed engine speed and the sensed engine load. An actual engine speed is thereafter compared with the stored engine speed and an actual engine load is thereafter compared with the stored engine load. Transfer from use of the first injection waveform type to use of the second injection waveform type is prevented unless at least (i) a difference between the actual engine load and the stored engine load exceeds a predetermined load amount, or (ii) a difference between the actual engine speed and the stored engine speed exceeds a predetermined speed amount.

    摘要翻译： 用于在发动机的液压致动电子控制燃料喷射系统中控制从使用第一喷射波形类型到使用第二喷射波形类型的转移的方法包括当第一喷射波形类型 并且存储感测的发动机速度和感测的发动机负载。 此后，将实际的发动机转速与存储的发动机转速进行比较，然后将实际发动机负荷与存储的发动机负荷进行比较。 除非至少（i）实际发动机负荷与存储的发动机负荷之间的差异超过预定的负载量，否则，可以防止从使用第一喷射波形转换到使用第二喷射波形类型，或者（ii） 实际发动机速度和存储的发动机转速超过预定速度量。

    Method for delivering a small quantity of fuel with a hydraulically-actuated injector during split injection
    8.
    发明授权
    Method for delivering a small quantity of fuel with a hydraulically-actuated injector during split injection 失效
    在分流喷射期间用液压致动喷射器输送少量燃料的方法

    公开(公告)号：US5893347A

    公开(公告)日：1999-04-13

    申请号：US993994

    申请日：1997-12-18

    申请人： Brian G. McGee ,  John P. Timmons

    发明人： Brian G. McGee ,  John P. Timmons

    IPC分类号： F02D41/38 ,  F02D41/40 ,  F02M57/02 ,  F02B3/00

    CPC分类号： F02M57/025 ,  F02D41/403 ,  Y02T10/44

    摘要： A method for apportioning a total fuel quantity to be injected to an engine by a hydraulically-actuated injector between a pilot shot and a main shot includes determining a pilot shot and/or main shot fuel quantity desired to be delivered during injection. The desired pilot shot fuel quantity is compared with a threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is compared with a threshold main shot fuel quantity. The total fuel quantity is delivered by a pilot shot if the desired pilot shot fuel quantity is less than the threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is less than the threshold main shot fuel quantity.

    摘要翻译： 通过液压致动的喷射器在飞行员射击和主射击之间分配要喷射到发动机的总燃料量的方法包括确定期望在喷射期间传送的飞行员喷射和/或主喷射燃料量。 将所需的引燃喷射燃料量与阈值引燃喷射燃料量进行比较，和/或将期望的主喷射燃料量与阈值主喷射燃料量进行比较。 如果所需的引燃喷射燃料量小于阈值引燃喷射燃料量，和/或所需的主喷射燃料量小于阈值主喷射燃料量，则通过引燃喷射来传送总燃料量。

    PISTON HAVING COMBUSTION BOWL SHAPED TO BALANCE COMBUSTION EFFICIENCY AND EMISSION PROPERTIES
    9.
    发明申请
    PISTON HAVING COMBUSTION BOWL SHAPED TO BALANCE COMBUSTION EFFICIENCY AND EMISSION PROPERTIES 有权
    活塞式活塞具有平衡燃烧效率和排放性能

    公开(公告)号：US20110253096A1

    公开(公告)日：2011-10-20

    申请号：US13088659

    申请日：2011-04-18

    申请人： William L. Easley ,  David A. Pierpont ,  John P. Timmons ,  Karthikeyan C. Venkatasubramaniam

    发明人： William L. Easley ,  David A. Pierpont ,  John P. Timmons ,  Karthikeyan C. Venkatasubramaniam

    IPC分类号： F02F3/26 ,  F02B9/04

    CPC分类号： F02B23/0624 ,  F02B23/0621 ,  F02B23/0669 ,  F02B23/0672 ,  F02B23/0693 ,  F02B2275/14 ,  F02D21/08 ,  F02F3/28 ,  F02M26/23 ,  Y02T10/123 ,  Y02T10/125

    摘要： A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston, and includes a profile of rotation defining a convex curve segment bisected by the longitudinal axis, and a plurality of concave curve segments outboard of the convex curve segment. The profile of rotation further includes a compound rim profile defining a plurality of convex curve segments corresponding to an inner rim surface. The convex curve segment of the compound bowl profile defines a relatively small radius of curvature, and the plurality of convex curve segments corresponding to the inner rim surface define a relatively large radius of curvature. The combustion face includes an abrupt transition from the compound bowl surface to the compound rim surface.

    摘要翻译： 压缩点火式内燃机的活塞包括具有限定燃烧碗的燃烧面的活塞体，燃烧面包括复合碗面和复合轮缘面。 燃烧面被成形以平衡活塞的燃烧效率性质与活塞的排放性质，并且包括限定由纵向轴线平分的凸曲线段的旋转轮廓，以及凸曲线外侧的多个凹曲线段 分割。 旋转轮廓还包括限定对应于内缘表面的多个凸曲线段的复合轮缘轮廓。 复合碗轮廓的凸曲线段限定了相对小的曲率半径，并且对应于内轮缘表面的多个凸曲线段限定了相对较大的曲率半径。 燃烧面包括从复合碗表面到复合轮缘表面的突然过渡。

    Split mode operation for fuel injection systems
    10.
    发明授权
    Split mode operation for fuel injection systems 有权
    燃油喷射系统的分流模式运行

    公开(公告)号：US07051699B2

    公开(公告)日：2006-05-30

    申请号：US10602746

    申请日：2003-06-24

    申请人： Brian G. McGee ,  John P. Timmons

    发明人： Brian G. McGee ,  John P. Timmons

    IPC分类号： F02B3/00

    CPC分类号： F02D41/0087 ,  F02D41/402 ,  Y02T10/44

    摘要： Methods for operating a fuel injection system of an engine. A first number of the fuel injectors is operated in a first mode during a first engine cycle. The first mode has a first set of fuel delivery characteristics, including at least one fuel shot per fuel injector per engine cycle. A second number of the fuel injectors is operated in a second mode during the first engine cycle. The second mode has a second set of fuel delivery characteristics, including at least one fuel shot per fuel injector per engine cycle.

    摘要翻译： 用于操作发动机的燃料喷射系统的方法。 在第一发动机循环期间，第一数量的燃料喷射器在第一模式下操作。 第一模式具有第一组燃料输送特性，包括每个发动机循环中每个燃料喷射器至少一个燃料喷射。 在第一发动机循环期间，第二数量的燃料喷射器在第二模式下操作。 第二模式具有第二组燃料输送特性，包括每个发动机循环中的每个燃料喷射器喷射至少一个燃料喷射。