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    CYLINDER HEAD WATER JACKET DESIGN
    1.
    发明公开
    CYLINDER HEAD WATER JACKET DESIGN 审中-公开

    公开(公告)号：US20240141818A1

    公开(公告)日：2024-05-02

    申请号：US18383770

    申请日：2023-10-25

    申请人： CUMMINS INC.

    发明人： Xiling Zhou ,  Darrin Ferry ,  Vijaysai Karuppiah Kumareshan

    IPC分类号： F01P3/02 ,  F02F1/40

    CPC分类号： F01P3/02 ,  F02F1/40 ,  F01P2003/024

    摘要： The application relates to cylinder head water jacket design. A water jacket for a cylinder head of an engine system includes a water jacket lower portion including a plurality of water jacket lower portion coolant inlets and a plurality of water jacket lower portion coolant paths. The water jacket lower portion is in coolant receiving communication with the water jacket lower portion coolant inlets. The water jacket further includes a water jacket upper portion connected to and in coolant receiving communication with the water jacket lower portion. The water jacket upper portion includes a first coolant rail, a second coolant rail, and a water jacket upper portion coolant outlet. A first one of the plurality of water jacket lower portion coolant paths surrounds at least a portion of an exhaust port of the cylinder head. A second one of the plurality of water jacket lower portion coolant paths is positioned between two intake ports of the cylinder head.

    CYLINDER HEAD
    2.
    发明公开
    CYLINDER HEAD 审中-公开

    公开(公告)号：US20240084759A1

    公开(公告)日：2024-03-14

    申请号：US18449709

    申请日：2023-08-15

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tomoya OSHIMA

    IPC分类号： F02F1/40

    CPC分类号： F02F1/40

    摘要： A cylinder head includes an attachment member, the attachment member being spaced away from a first communication hole when the attachment member is attached to a first attachment hole of a first cylinder head main body, and a second cylinder head main body including a second partition wall portion separating two second water jackets, a second communication hole formed in the second partition wall portion and communicating the two second water jackets with each other, a second facing wall portion facing the second partition wall portion, and a second attachment hole formed in the second facing wall portion, wherein a distal end of the attachment member attached to the second attachment hole is inserted into the second communication hole.

    Passive igniter cooling in cylinder head assembly
    6.
    发明授权
    Passive igniter cooling in cylinder head assembly 有权

    公开(公告)号：US11536220B1

    公开(公告)日：2022-12-27

    申请号：US17691516

    申请日：2022-03-10

    申请人： Caterpillar Inc.

    发明人： Jonathan Richard Chittenden ,  Jeff Allen Howard ,  Viorel Petrariu ,  John W Milem

    IPC分类号： F02F1/40 ,  F01P3/14 ,  F01P3/16

    摘要： A cylinder head in a cylinder head assembly includes an upper deck, a fire deck, gas exchange conduits, and a coolant cavity extending peripherally around the gas exchange conduits. The cylinder head also includes an igniter socket having an igniter post, and a radially outward sleeve step continuously circumferential of an igniter bore center axis. A cooling moat is formed between the igniter post and the sleeve step. The coolant cavity includes a valve bridge through-channel and a valve bridge part-way channel each fluidly connected to the igniter socket to provide coolant flow into and out of the cooling moat passively.

    Internal combustion engine having at least one cylinder
    7.
    发明授权
    Internal combustion engine having at least one cylinder 有权

    公开(公告)号：US11519357B2

    公开(公告)日：2022-12-06

    申请号：US17439788

    申请日：2020-03-20

    申请人： AVL LIST GmbH

    发明人： Andreas Zurk ,  Martin Klampfer ,  Robert Grundner

    IPC分类号： F02F1/40 ,  F01P3/02 ,  F01P3/14 ,  F01P3/16 ,  F02F1/24

    摘要： Various embodiments of the present disclosure are directed to an internal combustion engine cylinder head. In one example embodiment, the cylinder head includes a combustion chamber, a fire deck, an intermediate deck remote from a combustion chamber, a central receptacle that receives an injection or ignition device, at least one valve bridge, at least two adjacent gas exchange valves, a top-down cooling system, at least one first transfer opening, and at least one second transfer opening. The top-down cooling system including a first sub-cooling chamber and a second sub-cooling chamber. The at least one first transfer opening positioned between the first sub-cooling chamber and the second sub-cooling chamber. The at least one second transfer opening positioned between the first sub-cooling chamber and the second sub-cooling chamber is arranged in the region in the region of the at least one valve bridge between the at least two adjacent gas exchange valves.

    Inter-cylinder bore coolant passage for enhanced cavitation protection in an engine block
    8.
    发明授权
    Inter-cylinder bore coolant passage for enhanced cavitation protection in an engine block 有权

    公开(公告)号：US11286875B1

    公开(公告)日：2022-03-29

    申请号：US17181564

    申请日：2021-02-22

    申请人： Deere & Company

    发明人： Robert J. Reding ,  Terry W. Schwickerath ,  Donald E. Schmitz ,  Balkrishna N. Bejgamwar ,  Alexander D. Huibregtse

    IPC分类号： F02F1/12 ,  F02F1/40

    摘要： An engine block assembly utilized within a liquid-cooled engine includes an anti-cavitation engine block having a first cylinder, a second cylinder, and an inter-cylinder wall section located between the first and second cylinders. An anti-cavitation passage is formed through the inter-cylinder wall section that extends between the first cylinder and the second cylinder. A cylinder liner is inserted into the first cylinder and has an outer circumferential surface toward which the anti-cavitation passage opens. A water jacket extends at least partially around the outer circumferential surface of the cylinder liner. The anti-cavitation passage is formed through the inter-cylinder wall section at a location adjacent a region of thrust displacement of the cylinder liner and enables a flow of liquid coolant in the water jacket therethrough to deter cavitation within the water jacket adjacent the region of thrust displacement of the cylinder liner during operation of the liquid-cooled engine.

    EGR system of engine
    9.
    发明授权
    EGR system of engine 有权

    公开(公告)号：US11168650B2

    公开(公告)日：2021-11-09

    申请号：US17176420

    申请日：2021-02-16

    申请人： Mazda Motor Corporation

    发明人： Shinji Fujihira ,  Hiroshi Kinoshita ,  Takashi Kariya ,  Takayuki Tominaga ,  Tatsuya Takahata

    IPC分类号： F02M26/22 ,  F02F1/40 ,  F02D41/00 ,  F02B47/08 ,  F02F1/14 ,  F02M26/01 ,  F02M26/14 ,  F02M35/10 ,  F02M26/17

    摘要： An engine EGR system is provided, which includes an engine body, an intake passage, an exhaust passage and an EGR passage configured to recirculate exhaust gas as EGR gas to the intake passage. The EGR passage includes an EGR cooler and an EGR internal passage constituting the EGR passage upstream of the EGR cooler, and including a passage passing through a cylinder head. The EGR internal passage has a bent pipe part including a first bent portion at which an upstream portion of the EGR internal passage is bent away from a gas inflow port of the EGR cooler, a second bent portion located downstream of the first bent portion and bending the EGR internal passage toward the gas inflow port, and an intermediate portion connecting the first and the second bent portions by being disposed therebetween. The water-cooling passage is disposed around the bent pipe part.