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

IPC: F02F1/40 ,  F01P3/02 ,  F01L3/04 ,  F01L3/18 ,  F01L3/22

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.

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.

IPC: F02F1/42 ,  F02F7/00 ,  F02F1/24 ,  F02F11/00

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.

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

IPC: F02F1/40 ,  F01P3/02 ,  F01L3/04 ,  F01L3/18 ,  F01L3/22

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.

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

IPC: F02F1/40 ,  F01L3/04 ,  F01L3/18 ,  F01L3/22 ,  F01P3/02

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.

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.

IPC: F02F7/00 ,  F02F1/24 ,  F02F11/00

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.

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.

IPC: F02F7/00 ,  F02F1/24 ,  F02F11/00

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.

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

IPC: F02F1/40 ,  F01L3/04 ,  F01L3/18 ,  F01L3/22 ,  F01P3/02

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.