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    Internal combustion engine cylinder flow deflector
    1.
    发明授权
    Internal combustion engine cylinder flow deflector 有权

    公开(公告)号：US09638131B2

    公开(公告)日：2017-05-02

    申请号：US14498181

    申请日：2014-09-26

    Applicant: Caterpillar Inc.

    Inventor： Chad Koci ,  Steven C. Zoz ,  Jonathan Anders ,  Kenth I. Svensson

    IPC: F02F1/18 ,  F02F1/24 ,  F02B23/06 ,  F02M26/05

    CPC classification number: F02F1/242 ,  F02B23/0651 ,  F02B23/0672 ,  F02F1/18 ,  F02M26/05 ,  Y02T10/125

    Abstract: An internal combustion engine includes a cylinder case forming a cylinder bore having a centerline and an inner bore surface. A piston disposed within the cylinder bore forms a crown surface. A region defined between the piston and the cylinder bore in a radial direction has an annularly shaped mouth opening surrounding the crown surface. A cylinder head is disposed to cover an open end of the cylinder bore such that a variable volume is defined within the cylinder bore between the cylinder head and the piston. The cylinder head also forms a flame deck in fluid contact with the variable volume. A deflector structure forms a portion of the inner bore surface adjacent the flame deck surface, and is disposed between the flame deck and a topmost ring seal groove of the piston when the piston is at a TDC position.

    Ducted Combustion Systems Utilizing Duct Structures
    2.
    发明申请
    Ducted Combustion Systems Utilizing Duct Structures 有权
    使用管道结构的管道燃烧系统

    公开(公告)号：US20160298529A1

    公开(公告)日：2016-10-13

    申请号：US14685295

    申请日：2015-04-13

    Applicant: Caterpillar Inc.

    Inventor： Jonathan Anders ,  Kenth Svensson ,  Bobby John ,  Chad Koci ,  Christopher Gehrke ,  Glen Martin ,  Timothy Bazyn

    IPC: F02B3/00 ,  F02F3/28 ,  F02B23/06

    CPC classification number: F02B23/0627 ,  F02B23/02 ,  F02B23/0648 ,  F02F1/24 ,  Y02T10/125

    Abstract: A ducted combustion system is disclosed. The ducted combustion system includes a combustion chamber bound by a flame deck surface of a cylinder head of an internal combustion engine and by a piston top surface of a piston disposed within the internal combustion engine. The system includes a fuel injector including a plurality of orifices, the plurality of orifices injecting fuel into the combustion chamber as a plurality of fuel jets. The system includes a duct structure defining a plurality of ducts and disposed within the combustion chamber between the flame deck surface and the piston top surface, the plurality of ducts being disposed such that each of the plurality of fuel jets at least partially enters one of the plurality of ducts upon being injected into the combustion chamber.

    Abstract translation: 公开了一种管道燃烧系统。 管道燃烧系统包括由内燃机的气缸盖的火焰甲板表面和设置在内燃机内的活塞的活塞顶表面结合的燃烧室。 该系统包括具有多个喷嘴的燃料喷射器，多个喷嘴将燃料作为多个燃料喷射喷射到燃烧室中。 该系统包括限定多个管道并且设置在火焰甲板表面和活塞顶表面之间的燃烧室内的管道结构，多个管道被布置成使得多个燃料喷嘴中的每一个至少部分地进入 多个管道被注入到燃烧室中。

    DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD
    4.
    发明申请
    DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD 有权

    公开(公告)号：US20220243691A1

    公开(公告)日：2022-08-04

    申请号：US17167211

    申请日：2021-02-04

    Applicant: Caterpillar Inc.

    Inventor： Eric Lee Schroeder ,  David Todd Montgomery ,  Dana Ray Coldren ,  Chad Koci

    IPC: F02M43/04 ,  F02D19/06

    Abstract: A dual fuel system for an internal combustion engine includes a first fuel supply of a liquid pilot fuel, a primary fuel supply of a liquid primary fuel, and a dual fuel injector. The dual fuel injector includes a spill valve fluidly connected with a plunger cavity and movable to control a start of injection and an end of injection, and an admission valve. The admission valve is movable to admit a pilot fuel into the fuel injector, such that the pilot fuel is conveyed through an outlet check to form, within a primary fuel passage fluidly connected to the plunger cavity, a segmented fuel charge of leading pilot fuel and trailing primary fuel by displacing some of the primary fuel. The liquid pilot fuel may be a higher cetane/lower octane liquid fuel, and the primary fuel may be a lower cetane/higher octane liquid fuel.

    Dual fuel system having dual fuel injector and engine operating method
    5.
    发明授权
    Dual fuel system having dual fuel injector and engine operating method 有权

    公开(公告)号：US11384721B1

    公开(公告)日：2022-07-12

    申请号：US17167211

    申请日：2021-02-04

    Applicant: Caterpillar Inc.

    Inventor： Eric Lee Schroeder ,  David Todd Montgomery ,  Dana Ray Coldren ,  Chad Koci

    IPC: F02M43/04 ,  F02D19/06 ,  F02D19/10 ,  F02M47/02

    Abstract: A dual fuel system for an internal combustion engine includes a first fuel supply of a liquid pilot fuel, a primary fuel supply of a liquid primary fuel, and a dual fuel injector. The dual fuel injector includes a spill valve fluidly connected with a plunger cavity and movable to control a start of injection and an end of injection, and an admission valve. The admission valve is movable to admit a pilot fuel into the fuel injector, such that the pilot fuel is conveyed through an outlet check to form, within a primary fuel passage fluidly connected to the plunger cavity, a segmented fuel charge of leading pilot fuel and trailing primary fuel by displacing some of the primary fuel. The liquid pilot fuel may be a higher cetane/lower octane liquid fuel, and the primary fuel may be a lower cetane/higher octane liquid fuel.

    DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD
    6.
    发明公开
    DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD 审中-公开

    公开(公告)号：US20240044308A1

    公开(公告)日：2024-02-08

    申请号：US18490231

    申请日：2023-10-19

    Applicant: Caterpillar Inc.

    Inventor： Eric Lee Schroeder ,  David Todd Montgomery ,  Dana Ray Coldren ,  Chad Koci

    IPC: F02M43/04 ,  F02D19/06

    CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/0649 ,  F02D19/10

    Abstract: A dual fuel system for an internal combustion engine includes a first fuel supply of a liquid pilot fuel, a primary fuel supply of a liquid primary fuel, and a dual fuel injector. The dual fuel injector includes a spill valve fluidly connected with a plunger cavity and movable to control a start of injection and an end of injection, and an admission valve. The admission valve is movable to admit a pilot fuel into the fuel injector, such that the pilot fuel is conveyed through an outlet check to form, within a primary fuel passage fluidly connected to the plunger cavity, a segmented fuel charge of leading pilot fuel and trailing primary fuel by displacing some of the primary fuel. The liquid pilot fuel may be a higher cetane/lower octane liquid fuel, and the primary fuel may be a lower cetane/higher octane liquid fuel.

    FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
    7.
    发明申请
    FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES 审中-公开

    公开(公告)号：US20190003438A1

    公开(公告)日：2019-01-03

    申请号：US15635360

    申请日：2017-06-28

    Applicant: Caterpillar Inc.

    Inventor： David Ginter ,  Chad Koci ,  Russell P. Fitzgerald ,  Jonathan W. Anders

    IPC: F02M61/18 ,  F02M61/14

    Abstract: A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a body defining an orifice. The orifice is configured to provide passage to a fuel into a combustion chamber of the internal combustion engine. The orifice includes an inlet port having a first oval shape and an outlet port having a second oval shape. The second al shape is orthogonal to the first oval shape. Moreover, a transition from the first oval shape to the second oval shape defines a stagnation plane, facilitating an exit of the fuel as a fan spray from the outlet port.

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