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公开(公告)号：US11799271B2
公开(公告)日：2023-10-24
申请号：US17175813
申请日：2021-02-15
申请人： Cummins Inc.
发明人： David Guillermo Gonzalez Medina , William Marshall Cover , Xu Han , Andrew Guy Kitchen , Daniel J. O'Connor , Alan C. Anderson , Nicholas James Welch , Jisang Sun
CPC分类号： H01T13/467 , H01T13/32
摘要： Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.
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公开(公告)号：US20210184437A1
公开(公告)日：2021-06-17
申请号：US17175813
申请日：2021-02-15
申请人： Cummins Inc.
发明人： David Guillermo Gonzalez Medina , William Marshall Cover , Xu Han , Andrew Guy Kitchen , Daniel J. O'Connor , Alan C. Anderson , Nicholas James Welch , Jisang Sun
IPC分类号： H01T13/46
摘要： Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.
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公开(公告)号：US11614027B2
公开(公告)日：2023-03-28
申请号：US16680921
申请日：2019-11-12
申请人： Cummins Inc.
发明人： Alan C. Anderson , William Marshall Cover , Xu Han , Nicholas James Welch , David Guillermo Gonzalez Medina , Xiao Qin , Andrew Guy Kitchen , Daniel J. O'Connor , Benjamín L. Olivas
摘要： A combustion pre-chamber assembly includes pre-chamber device body defining an annular plenum that is in fluid communication with the at least one bore that extends through the spark plug shell. The annular plenum is also in communication with at least one purging passage that extends from the annular plenum to an end surface of the pre-chamber device body. Residual exhaust gases in the annular volume of the spark plug are purged by fresh charge flow from the main combustion chamber as the piston approaches top dead center. The fresh charge flow that is provided to the annular plenum through the at least one purging passage and into the annular volume of the spark plug through the at least one bore through the spark plug shell.
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公开(公告)号：US10975759B2
公开(公告)日：2021-04-13
申请号：US16434270
申请日：2019-06-07
申请人： Cummins Inc.
发明人： Alan C. Anderson , William Marshall Cover , Xu Han , Benjamin L. Olivas , Daniel J. O'Connor , Daniel Guillermo Gonzalez Medina , Xiao Qin , Nicholas James Welch , Andrew Guy Kitchen
IPC分类号： F02B19/12 , F02P13/00 , H01T13/54 , H01T13/46 , H01T13/06 , H01T21/02 , F02B19/10 , H01T13/14
摘要： A spark plug is disclosed that includes at least one bore extending through a shell of the spark plug in order to form a passageway between an annular volume around the spark plug insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.
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公开(公告)号：US11434811B2
公开(公告)日：2022-09-06
申请号：US16918090
申请日：2020-07-01
申请人： Cummins Inc.
发明人： Xu Han , Xiao Qin , Alan C. Anderson , Nicholas James Welch
摘要： 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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公开(公告)号：US20200332705A1
公开(公告)日：2020-10-22
申请号：US16918090
申请日：2020-07-01
申请人： Cummins Inc.
发明人： Xu Han , Xiao Qin , Alan C. Anderson , Nicholas James Welch
摘要： 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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公开(公告)号：US20200080466A1
公开(公告)日：2020-03-12
申请号：US16680921
申请日：2019-11-12
申请人： Cummins Inc.
发明人： Alan C. Anderson , William Marshall Cover , Xu Han , Nicholas James Welch , David Guillermo Gonzalez Medina , Xiao Qin , Andrew Guy Kitchen , Daniel J. O'Connor , Benjamin L. Olivas
摘要： A combustion pre-chamber assembly includes pre-chamber device body defining an annular plenum that is in fluid communication with the at least one bore that extends through the spark plug shell. The annular plenum is also in communication with at least one purging passage that extends from the annular plenum to an end surface of the pre-chamber device body. Residual exhaust gases in the annular volume of the spark plug are purged by fresh charge flow from the main combustion chamber as the piston approaches top dead center. The fresh charge flow that is provided to the annular plenum through the at least one purging passage and into the annular volume of the spark plug through the at least one bore through the spark plug shell.
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公开(公告)号：US20190284988A1
公开(公告)日：2019-09-19
申请号：US16434270
申请日：2019-06-07
申请人： Cummins Inc.
发明人： Alan C. Anderson , William Marshall Cover , Xu Han , Benjamin L. Olivas , Daniel J. O'Connor , Daniel Guillermo Gonzalez Medina , Xiao Qin , Nicholas James Welch , Andrew Guy Kitchen
摘要： A spark plug is disclosed that includes at least one bore extending through a shell of the spark plug in order to form a passageway between an annular volume around the spark plug insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.
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