MULTI-FUEL FLOW SYSTEMS AND METHODS WITH DEDICATED EXHAUST GAS RECIRCULATION
    17.
    发明申请
    MULTI-FUEL FLOW SYSTEMS AND METHODS WITH DEDICATED EXHAUST GAS RECIRCULATION 有权
    多燃料流量系统和方法与专用排气回收

    公开(公告)号:US20140261322A1

    公开(公告)日:2014-09-18

    申请号:US13834632

    申请日:2013-03-15

    Applicant: CUMMINS INC.

    Abstract: Systems and methods for fuelling a plurality of cylinders of an internal combustion engine are disclosed. The system includes a dedicated exhaust gas recirculation system for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a fueling system to provide a first flow of fuel to each of the plurality of cylinders and a second flow of fuel to each of the dedicated cylinders that is in addition to the first flow of fuel.

    Abstract translation: 公开了用于对内燃机的多个气缸进行加油的系统和方法。 该系统包括专用废气再循环系统,用于在燃烧之前将来自发动机的至少一个专用气缸的废气流再循环到进气系统中。 该系统还包括燃料供给系统,用于向多个气缸中的每一个提供第一燃料流,以及除了第一燃料流之外的每个专用气缸的第二燃料流。

    Bi-fuel internal combustion engine systems and methods

    公开(公告)号:US11441494B2

    公开(公告)日:2022-09-13

    申请号:US16208257

    申请日:2018-12-03

    Applicant: CUMMINS INC.

    Abstract: A bi-fuel internal combustion engine system includes a first fuel system, a second fuel system, and a bi-fuel internal combustion engine. The bi-fuel internal combustion engine is configured to selectively consume one of a first fuel received from the first fuel system and a second fuel received from the second fuel system. The bi-fuel internal combustion engine includes a camshaft and a valve assembly. The camshaft has a cam. The valve assembly is positioned adjacent the camshaft and configured to interface with the cam. The valve assembly is selectively repositionable between a first position and a second position. The bi-fuel internal combustion engine has a first dynamic compression ratio when the valve assembly is in the first position and a second dynamic compression ratio when the valve assembly is in the second position. The second dynamic compression ratio is greater than the first dynamic compression ratio.

    Engine cooling system and method for a spark ignited engine

    公开(公告)号:US11220950B2

    公开(公告)日:2022-01-11

    申请号:US16665292

    申请日:2019-10-28

    Applicant: Cummins Inc.

    Abstract: Systems, devices, and method are disclosed for differentially cooling an internal combustion engine. A cooling system includes a first cooling circuit configured to lower a temperature of a cooling fluid to a first temperature where the first cooling circuit is configured to dispense a first portion of the cooling fluid to cylinder walls and non-cylinder or non-combustion surfaces of the engine. The cooling system also includes a second cooling circuit configured to lower the temperature of a remaining or second portion of the cooling fluid to a second temperature that is lower than the first temperature where the second cooling circuit is configured to dispense the remaining portion of the cooling fluid to cylinder or combustion surfaces within one or more cylinders of the internal combustion engine.

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