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    Cylinder head for internal combustion engine
    2.
    发明授权
    Cylinder head for internal combustion engine 有权

    公开(公告)号：US12215650B2

    公开(公告)日：2025-02-04

    申请号：US17596931

    申请日：2021-05-17

    Applicant: Cummins Inc.

    Inventor： Robert Earl Hoye ,  Jeffrey D. Jones ,  Daniel J. Mohr ,  David M. Barnes ,  Timothy Shipp

    IPC: F02F1/38 ,  F02F1/40

    Abstract: A cylinder head includes novel designs for undercuts, contours of the outer enclosure, coolant jackets, and other cavities within an outer enclosure of the cylinder head. The cylinder head design enables the reduction of weight of the head while maintaining structural integrity of the head, and improves control of temperatures in intake side and exhaust side zones of the heads to improve operational efficiency of the engine. A method is provided for additive manufacturing of the cylinder head including the disclosed designs.

    CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE
    3.
    发明公开
    CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20240209810A1

    公开(公告)日：2024-06-27

    申请号：US17596931

    申请日：2021-05-17

    Applicant: Cummins Inc.

    Inventor： Robert Earl Hoye ,  Jeffrey D. Jones ,  Daniel J. Mohr ,  David M. Barnes ,  Timothy Shipp

    IPC: F02F1/38 ,  F02F1/40

    CPC classification number: F02F1/38 ,  F02F1/40

    Abstract: A cylinder head includes novel designs for undercuts, contours of the outer enclosure, coolant jackets, and other cavities within an outer enclosure of the cylinder head. The cylinder head design enables the reduction of weight of the head while maintaining structural integrity of the head, and improves control of temperatures in intake side and exhaust side zones of the heads to improve operational efficiency of the engine. A method is provided for additive manufacturing of the cylinder head including the disclosed designs.

    COMBUSTION CYLINDER END FACE COMPONENTS INCLUDING THERMAL BARRIER COATINGS
    4.
    发明公开
    COMBUSTION CYLINDER END FACE COMPONENTS INCLUDING THERMAL BARRIER COATINGS 审中-公开

    公开(公告)号：US20230332555A1

    公开(公告)日：2023-10-19

    申请号：US18334455

    申请日：2023-06-14

    Applicant: Cummins Inc.

    Inventor： Daniel J. Mohr ,  Robert Earl Hoye ,  Timothy Shipp ,  Leonard W. Brancamp, JR.

    IPC: F02F1/24 ,  F01L3/04 ,  F02F3/14

    CPC classification number: F02F1/24 ,  F01L3/04 ,  F02F3/14

    Abstract: An apparatus for a combustion cylinder of a reciprocating piston engine includes a combustion cylinder end face component including a first side configured to face the combustion cylinder and extending in a radial direction of the combustion cylinder and a pocket recessed into the first side and including a recessed pocket surface. The combustion cylinder end face component may be one of a piston and a cylinder head. A thermal barrier coating is inlaid in the pocket. The thermal barrier coating includes a ceramic-metallic layer directly coating the recessed pocket surface and a ceramic layer directly coating the ceramic-metallic layer and including an outer surface facing the combustion cylinder.

    Modulated Valve Timing to Achieve Optimum Cylinder Pressure Target
    6.
    发明申请
    Modulated Valve Timing to Achieve Optimum Cylinder Pressure Target 审中-公开
    调节阀定时达到最佳气缸压力目标

    公开(公告)号：US20170051686A1

    公开(公告)日：2017-02-23

    申请号：US15237952

    申请日：2016-08-16

    Applicant: Cummins Inc.

    Inventor： Timothy Shipp

    IPC: F02D41/00 ,  F02D41/26 ,  F01L1/34

    CPC classification number: F02D41/0002 ,  F01L1/34 ,  F01L2201/00 ,  F02D13/0234 ,  F02D35/023 ,  F02D41/1401 ,  F02D41/1406 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/1412 ,  F02D2041/1433 ,  F02D2200/0625 ,  Y02T10/18 ,  Y02T10/42

    Abstract: A system includes an engine and a controller in operative communication with the engine. Engine operating conditions are determined. At least one engine operating condition is determined. Based on the determined at least one engine operating condition, brake-specific fuel consumption is determined for each of a plurality of candidate cylinder pressures. A target cylinder pressure is selected from the plurality of candidate cylinder pressures. The target cylinder pressure is the candidate cylinder pressure at which brake-specific fuel consumption is minimized. Intake valve timing of the engine is modulated so as to achieve the target cylinder pressure.

    Abstract translation: 一种系统包括发动机和与发动机可操作地通信的控制器。 发动机工作条件确定。 确定至少一个发动机工作条件。 基于确定的至少一个发动机操作条件，针对多个候选气缸压力中的每一个确定制动特定燃料消耗。 从多个候选气缸压力中选择目标气缸压力。 目标气缸压力是制动特定燃料消耗最小化的候选气缸压力。 调节发动机的进气门正时以达到目标气缸压力。

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