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    SINGLE-SHAFT DUAL EXPANSION INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    SINGLE-SHAFT DUAL EXPANSION INTERNAL COMBUSTION ENGINE 有权
    单轴双向膨胀内燃机

    公开(公告)号：US20160363045A1

    公开(公告)日：2016-12-15

    申请号：US14737621

    申请日：2015-06-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The Regents of the University of Michigan

    Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz ,  Elliott Ortiz-Soto

    IPC: F02B41/06 ,  F01B9/02 ,  F01L1/34 ,  F02B75/18

    CPC classification number: F02B41/06 ,  F01B9/02 ,  F01L1/34 ,  F02B75/045 ,  F02B75/18 ,  F02B2075/1812

    Abstract: A single-shaft dual expansion internal combustion engine includes an engine block, a cylinder head, a single crankshaft, a control shaft and first, second and third multi-link connecting rod assemblies. First and second power cylinders and an expander cylinder are formed in the engine block. First and second power pistons are moveable in the first and second power cylinders and are connected to respective first and second crankpins of the crankshaft. An expander piston is moveable in the expander cylinder and is connected to a third crankpin of the crankshaft. First and second multi-link connecting rod assemblies are coupled to first and second swing arms of the control shaft. A third multi-link connecting rod assembly is coupled to a third swing arm of the control shaft.

    Abstract translation: 单轴双膨胀内燃机包括发动机缸体，气缸盖，单个曲轴，控制轴和第一，第二和第三多连杆连杆组件。 第一和第二动力缸和膨胀缸形成在发动机缸体中。 第一和第二动力活塞可在第一和第二动力缸中移动并且连接到曲轴的相应的第一和第二曲柄销。 膨胀活塞可在膨胀缸中移动并连接到曲轴的第三曲柄销。 第一和第二多连杆连杆组件联接到控制轴的第一和第二摆臂。 第三多连杆连杆组件联接到控制轴的第三摆臂。

    Exhaust compound internal combustion engine with controlled expansion
    2.
    发明授权
    Exhaust compound internal combustion engine with controlled expansion 有权

    公开(公告)号：US09897000B2

    公开(公告)日：2018-02-20

    申请号：US14736030

    申请日：2015-06-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz

    IPC: F02B33/22 ,  F02B75/04 ,  F02B41/08

    CPC classification number: F02B75/04 ,  F02B41/08

    Abstract: A piston compound internal combustion engine is disclosed with an expander piston deactivation feature. A piston internal combustion engine is compounded with a secondary expander piston, where the expander piston extracts energy from the exhaust gases being expelled from the primary power pistons. The secondary expander piston can be deactivated and immobilized, or its stroke can be reduced, under low load conditions in order to reduce parasitic losses and over-expansion. Two mechanizations are disclosed for the secondary expander piston's coupling with the power pistons and crankshaft. Control strategies for activation and deactivation of the secondary expander piston are also disclosed. In addition, six-cylinder engine configurations are defined by replicating groups of two power pistons and one expander piston.

    EXHAUST COMPOUND INTERNAL COMBUSTION ENGINE WITH CONTROLLED EXPANSION
    3.
    发明申请
    EXHAUST COMPOUND INTERNAL COMBUSTION ENGINE WITH CONTROLLED EXPANSION 有权
    排气复合内燃机与控制膨胀

    公开(公告)号：US20150275747A1

    公开(公告)日：2015-10-01

    申请号：US14736030

    申请日：2015-06-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： RUSSELL P. DURRETT ,  Paul M. NAJT ,  Peter P. Andruskiewicz

    IPC: F02B41/06 ,  F02B75/04

    CPC classification number: F02B75/04 ,  F02B41/08

    Abstract: A piston compound internal combustion engine is disclosed with an expander piston deactivation feature. A piston internal combustion engine is compounded with a secondary expander piston, where the expander piston extracts energy from the exhaust gases being expelled from the primary power pistons. The secondary expander piston can be deactivated and immobilized, or its stroke can be reduced, under low load conditions in order to reduce parasitic losses and over-expansion. Two mechanizations are disclosed for the secondary expander piston's coupling with the power pistons and crankshaft. Control strategies for activation and deactivation of the secondary expander piston are also disclosed. In addition, six-cylinder engine configurations are defined by replicating groups of two power pistons and one expander piston.

    Abstract translation: 公开了具有膨胀机活塞停用特征的活塞复合式内燃机。 活塞内燃机与二次膨胀活塞混合，其中膨胀机活塞从废气中抽出能量从主动力活塞中排出。 可以在低负载条件下，二次膨胀活塞被去活和固定，或者可以降低其行程，以减少寄生损耗和过度膨胀。 公开了两个机械化用于二次膨胀活塞与动力活塞和曲轴的联接。 还公开了二次膨胀活塞的活化和失活的控制策略。 此外，六缸发动机配置通过复制两组动力活塞和一个膨胀活塞的组来定义。

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