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    HEAT EXCHANGER ASSEMBLY WITH VORTEX FLOW BAFFLE
    3.
    发明公开
    HEAT EXCHANGER ASSEMBLY WITH VORTEX FLOW BAFFLE 审中-公开

    公开(公告)号：US20230313728A1

    公开(公告)日：2023-10-05

    申请号：US18130307

    申请日：2023-04-03

    Applicant: CUMMINS INC.

    Inventor： Nicholas James Welch

    IPC: F01P3/20 ,  F28F9/24

    CPC classification number: F01P3/20 ,  F28F9/24 ,  F01P2003/006

    Abstract: A cooling system of an internal combustion engine system includes an engine cooling circuit for defining a flow path and direction for engine coolant fluid flowing through the internal combustion engine system. The cooling system also includes a heat exchanger assembly positioned along the engine cooling circuit. The heat exchanger assembly is structured to transfer heat from the engine coolant fluid to a working fluid and includes a shell defining an inner cavity, a core disposed within the inner cavity and structured to receive the working fluid, and a main flow path and a bypass flow path of the engine coolant fluid, the core comprising a baffle in the bypass flow path, the baffle including: a base portion coupled to an end of the core and a curved portion extending from the base portion such that the curved portion impedes a bypass flow of engine coolant fluid from continuing along the bypass flow path.

    Engine lubrication systems, lubrication fluid circulation systems, and methods for regulating fluid pressure
    5.
    发明授权
    Engine lubrication systems, lubrication fluid circulation systems, and methods for regulating fluid pressure 有权

    公开(公告)号：US12188386B2

    公开(公告)日：2025-01-07

    申请号：US18497175

    申请日：2023-10-30

    Applicant: Cummins Inc.

    Inventor： Nicholas James Welch ,  Matthew D. Flessner

    IPC: F01M1/16 ,  F01M1/02 ,  F01M11/02

    Abstract: A lubrication system for an internal combustion engine includes a fluid flow control device at an outlet side of the pump that regulates pressure conditions at the outlet side of the pump upstream of the lubrication circuit in the engine. The fluid flow control device is located in a recirculation path, and opens in response to a fluid pressure at the outlet of the pump exceeding a first threshold to allow the fluid to pass from the outlet side of the pump back to an inlet side of the pump. The recirculation path includes a tuning device that maintains the fluid pressure at engine speeds above the first threshold. In response to engine speeds above a second threshold, the tuning device restricts fluid flow in the recirculation path so that the fluid pressure in the fluid flow path increases.

    ENGINE LUBRICATION SYSTEMS, LUBRICATION FLUID CIRCULATION SYSTEMS, AND METHODS FOR REGULATING FLUID PRESSURE
    6.
    发明公开
    ENGINE LUBRICATION SYSTEMS, LUBRICATION FLUID CIRCULATION SYSTEMS, AND METHODS FOR REGULATING FLUID PRESSURE 审中-公开

    公开(公告)号：US20240077006A1

    公开(公告)日：2024-03-07

    申请号：US18497175

    申请日：2023-10-30

    Applicant: Cummins Inc.

    Inventor： Nicholas James Welch ,  Matthew D. Flessner

    IPC: F01M1/16 ,  F01M11/02

    CPC classification number: F01M1/16 ,  F01M11/02 ,  F01M1/02

    Abstract: A lubrication system for an internal combustion engine includes a fluid flow control device at an outlet side of the pump that regulates pressure conditions at the outlet side of the pump upstream of the lubrication circuit in the engine. The fluid flow control device is located in a recirculation path, and opens in response to a fluid pressure at the outlet of the pump exceeding a first threshold to allow the fluid to pass from the outlet side of the pump back to an inlet side of the pump. The recirculation path includes a tuning device that maintains the fluid pressure at engine speeds above the first threshold. In response to engine speeds above a second threshold, the tuning device restricts fluid flow in the recirculation path so that the fluid pressure in the fluid flow path increases.

    COMBUSTION PRE-CHAMBER DEVICE FOR AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    COMBUSTION PRE-CHAMBER DEVICE FOR AN INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20200332705A1

    公开(公告)日：2020-10-22

    申请号：US16918090

    申请日：2020-07-01

    Applicant: Cummins Inc.

    Inventor： Xu Han ,  Xiao Qin ,  Alan C. Anderson ,  Nicholas James Welch

    IPC: F02B19/08 ,  F02B19/02 ,  F02B19/10

    Abstract: A combustion pre-chamber device for a spark ignition internal combustion engine is configured to engage a spark plug and be mounted to a cylinder head in communication with a combustion chamber of a cylinder of the engine. The combustion pre-chamber device includes any one or combination of a number of features to improve operating effectiveness, including extending the combustion operating range by improving cooling and optimizing the flow field inside the combustion pre-chamber device.

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