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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
Applicant: Cummins Inc.
Inventor： 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
Abstract: 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：US10113521B2
公开(公告)日：2018-10-30
申请号：US15429105
申请日：2017-02-09
Applicant: CUMMINS INC.
Inventor： Pallav Jha , Axel Zur Loye , Joseph Scot Roederer , Steven L. Leffler , John A. Rennekamp , Amit A. Kulkarni , Peter Vinson Woon , Andrew Guy Kitchen
IPC: F02M35/10 , F02M35/116 , F02M35/104 , F02F1/42 , F02B75/02 , F02B31/04
Abstract: An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, charge motion consistency is improved between engine cylinders and between the left bank and the right bank, thereby improving the consistency of combustion and power output, improving efficiency and reducing emissions (e.g., decreased particulate emissions (also described as smoke), hydrocarbon emissions, and NOx emissions), and further including an improved knock margin, improved fuel economy, wider rich and lean limits, etc.
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公开(公告)号：US20240167439A1
公开(公告)日：2024-05-23
申请号：US18056485
申请日：2022-11-17
Applicant: Cummins Inc.
Inventor： Pallav Pathak , Robert J. Thomas , Andrew Guy Kitchen , Balaji Sampathnarayanan , Jisang Sun , Carlos Alcides Lana , Philipe F. Saad , Agneya Turlapati , Milan Khushal Visaria
CPC classification number: F02M31/205 , F02B33/44
Abstract: Control of an internal combustion engine system in response to a condensation condition associated with a charge air cooler is disclosed. One or more operating parameters of the internal combustion engine are monitored to the control charge air cooler coolant inlet temperature to keep the charge temperature above the estimated dew point to reduce or prevent condensation upstream of the intake manifold.
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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
Applicant: Cummins Inc.
Inventor： 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 classification number: H01T13/467 , H01T13/32
Abstract: 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
Applicant: Cummins Inc.
Inventor： 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: H01T13/46
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20200080466A1
公开(公告)日：2020-03-12
申请号：US16680921
申请日：2019-11-12
Applicant: Cummins Inc.
Inventor： 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
Abstract: 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
Applicant: Cummins Inc.
Inventor： 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
Abstract: 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：US12044196B2
公开(公告)日：2024-07-23
申请号：US18056485
申请日：2022-11-17
Applicant: Cummins Inc.
Inventor： Pallav Pathak , Robert J. Thomas , Andrew Guy Kitchen , Balaji Sampathnarayanan , Jisang Sun
CPC classification number: F02M31/205 , F02B33/44
Abstract: Control of an internal combustion engine system in response to a condensation condition associated with a charge air cooler is disclosed. One or more operating parameters of the internal combustion engine are monitored to the control charge air cooler coolant inlet temperature to keep the charge temperature above the estimated dew point to reduce or prevent condensation upstream of the intake manifold.
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公开(公告)号：US20230089814A1
公开(公告)日：2023-03-23
申请号：US17803486
申请日：2022-07-28
Applicant: Cummins Inc.
Inventor： Dennis King Chan , William Ryan Dougherty , Jeffrey D. Jones , Andrew P. Perr , Andrew Guy Kitchen , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, JR.
Abstract: A cylinder head [20, 120] mountable onto a cylinder block [16] of an engine [10] is disclosed. The cylinder head [20, 120] includes at least one fastener boss [28, 128] configured for receiving a fastener [24], and the cylinder head [20, 120] is securely fastened onto the cylinder block [16] of the engine [10] by the fastener [24]. A boss cutout [30, 130] is formed on a lower portion of the at least one fastener boss [28, 128] that abuts the cylinder block [16] such that a contact pressure balance of sealing pressures around the cylinder block [16] is evenly distributed.
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公开(公告)号：US20210332774A1
公开(公告)日：2021-10-28
申请号：US16614223
申请日：2017-05-15
Applicant: Cummins Inc.
Inventor： Dennis King Chan , William Ryan Dougherty , Jeffrey D. Jones , Andrew P. Perr , Andrew Guy Kitchen , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, Jr.
Abstract: A cylinder head [20, 120] mountable onto a cylinder block [16] of an engine [10] is disclosed. The cylinder head [20, 120] includes at least one fastener boss [28, 128] configured for receiving a fastener [24], and the cylinder head [20, 120] is securely fastened onto the cylinder block [16] of the engine [10] by the fastener [24]. A boss cutout [30, 130] is formed on a lower portion of the at least one fastener boss [28, 128] that abuts the cylinder block [16] such that a contact pressure balance of sealing pressures around the cylinder block [16] is evenly distributed.
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