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公开(公告)号：US11441512B2
公开(公告)日：2022-09-13
申请号：US17307497
申请日：2021-05-04
Applicant: CUMMINS INC.
Inventor： Andrew P. Perr , Robin J. Bremmer , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, Jr. , Dennis King Chan
Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.
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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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公开(公告)号：US20210254580A1
公开(公告)日：2021-08-19
申请号：US17307497
申请日：2021-05-04
Applicant: CUMMINS INC.
Inventor： Andrew P. Perr , Robin J. Bremmer , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, JR. , Dennis King Chan
Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.
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公开(公告)号：US20190284985A1
公开(公告)日：2019-09-19
申请号：US16434257
申请日：2019-06-07
Applicant: Cummins Inc.
Inventor： Andrew P. Perr , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, JR. , Dwight A. Doig
Abstract: 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 a number of bores that open at an outer surface thereof that extend into the body and receive a coolant flow to provide cooling for a combustion pre-chamber of the combustion pre-chamber device.
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Patent Agency Ranking
公开(公告)号：US11725605B2
公开(公告)日：2023-08-15
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.
CPC classification number: F02F7/0021 , F02F1/24 , F02F11/002 , F02F2007/0041
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：US11008973B2
公开(公告)日：2021-05-18
申请号：US16486645
申请日：2018-02-22
Applicant: CUMMINS INC.
Inventor： Andrew P. Perr , Robin J. Bremmer , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis, Jr. , Dennis King Chan
Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.
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公开(公告)号：US20200232414A1
公开(公告)日：2020-07-23
申请号：US16486645
申请日：2018-02-22
Applicant: CUMMINS INC.
Inventor： Andrew P. Perr , Robin J. Bremmer , Philipe F. Saad , Akintomide K. Akinola , Rick Vaughan Lewis , Dennis King Chan
Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.
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公开(公告)号：US20200049193A1
公开(公告)日：2020-02-13
申请号：US16101233
申请日：2018-08-10
Applicant: CUMMINS INC.
Inventor： Andrew P. Perr
Abstract: The present disclosure provides a stud assembly insertable throughout a base block. The stud assembly includes a retention ring to engage with the base block and provide ease in assembly of the bearing cap stud assembly in an engine configuration without compromising load carrying characteristics of the design.
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公开(公告)号：US09556778B2
公开(公告)日：2017-01-31
申请号：US14102095
申请日：2013-12-10
Applicant: Cummins Inc.
Inventor： James A. Zigan , Andrew P. Perr , Timothy C. Ernst
CPC classification number: F01N5/02 , F01K23/065 , F01K23/101 , F02G5/02 , Y02T10/16 , Y02T10/166
Abstract: An engine including a WHR system includes a clutch positioned to engage or disengage a WHR feedpump that moves working fluid through a WHR circuit. The clutch engages or disengages the feedpump under certain operating conditions of the engine and/or the WHR system, and/or at the request of an operator of the engine. Conditions may include cool or cold components, and insufficient working fluid. The operator may also request the clutch be disengaged, such as might be advantageous if the operator detects an operational problem with the WHR system or determines there is an advantage to operating the engine without the WHR system.
Abstract translation: 包括WHR系统的发动机包括离合器，其定位成接合或分离通过WHR回路移动工作流体的WHR进料泵。 在发动机和/或WHR系统的某些操作条件下，和/或应发动机的操作者的要求，离合器接合或分离进料泵。 条件可能包括冷或冷组分，以及工作流体不足。 操作员还可以请求离合器脱离，例如如果操作者检测到WHR系统的操作问题或者确定在没有WHR系统的情况下操作发动机的优点是有利的。
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