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    Method and systems for variable valve timing for a V-engine with a single central camshaft
    6.
    发明授权
    Method and systems for variable valve timing for a V-engine with a single central camshaft 有权
    具有单个中心凸轮轴的V型发动机可变气门正时的方法和系统

    公开(公告)号：US08919311B2

    公开(公告)日：2014-12-30

    申请号：US13786530

    申请日：2013-03-06

    Applicant: General Electric Company

    Inventor： Paul Lloyd Flynn ,  Ganesha Koggu Naik

    IPC: F01L1/18 ,  F01L1/34

    CPC classification number: F01L1/34 ,  F01B1/04 ,  F01L1/146 ,  F01L13/0026 ,  F01L2001/054 ,  F02B75/22

    Abstract: Various methods and systems are provided for varying valve timing in a V-engine. In one embodiment, a method for an engine comprises pivoting a first cam follower for a first cylinder of a first bank and a second cam follower for a second cylinder of a second bank about a rotatable pivot shaft, driving the first cam follower and the second cam follower with a camshaft to operate a respective first valve of the first cylinder and a second valve of the second cylinder, and rotating the pivot shaft to vary a valve timing of the first cylinder and the second cylinder.

    Abstract translation: 提供了用于在V型发动机中改变气门正时的各种方法和系统。 在一个实施例中，一种用于发动机的方法包括使用于第一组的第一气缸的第一凸轮从动件和用于第二组的第二气缸的第二凸轮从动件围绕可旋转的枢轴枢转，驱动第一凸轮从动件和第二凸轮从动件 具有凸轮轴的凸轮从动件用于操作第一气缸的相应的第一阀和第二气缸的第二阀，并且使枢转轴旋转以改变第一气缸和第二气缸的气门正时。

    SYSTEMS FOR AN ENGINE
    8.
    发明申请
    SYSTEMS FOR AN ENGINE 审中-公开

    公开(公告)号：US20170314481A1

    公开(公告)日：2017-11-02

    申请号：US15140252

    申请日：2016-04-27

    Applicant: General Electric Company

    Inventor： Milan Palinda Karunaratne ,  Paul Lloyd Flynn ,  James Robert Schreiner

    IPC: F02D41/00

    CPC classification number: F02D41/0085 ,  F02D41/0007 ,  F02D41/0055 ,  F02D41/0077 ,  F02D41/1443 ,  F02D41/1448 ,  F02D41/22 ,  F02D2041/2027 ,  F02D2041/288 ,  F02M26/43 ,  F02M26/49 ,  Y02T10/47

    Abstract: Systems are provided for detecting a change in performance of an engine component. In one example, a system includes a first pressure sensor of a first exhaust manifold coupled to a first subset of cylinders of an engine, a second pressure sensor of a second exhaust manifold coupled to a second subset of cylinders of the engine, a passage coupling the first exhaust manifold to an intake manifold, and a controller configured to detect a change in performance of any cylinder of the engine based on frequency content from the first pressure sensor and from the second pressure sensor during both a first mode where no exhaust gas from the first exhaust manifold is provided to the intake manifold, and during a second mode where all exhaust gas from the first exhaust manifold is provided to the intake manifold, and adjust an operating parameter responsive to the change in performance.

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