-
公开(公告)号：US11698042B2
公开(公告)日：2023-07-11
申请号：US17351438
申请日：2021-06-18
Applicant: Cummins Inc.
CPC classification number: F02F7/0021 , F02F1/004 , F02F7/0065 , F02F2001/008
Abstract: An engine block includes one or more cylinder bores wherein each cylinder bore is surrounded by a cylinder bore wall. The cylinder bore wall includes a liner stop mechanism to locate a liner in the cylinder bore. The cylinder bore includes a mid-portion that spans between an upper end and a lower end, wherein the liner stop mechanism can be located near the upper end, near the lower end, or the mid-portion. The engine block has an outer cylinder block wall that is exterior to the cylinder bore wall. The outer cylinder block wall includes a first rib positioned above the liner stop mechanism and a second rib positioned below the liner stop mechanism relative to a cylindrical axis of the cylinder bore. The first and second ribs straddle the liner stop mechanism to reduce rotation and buckling of the liner during operation of the engine.
-
公开(公告)号：US20250059930A1
公开(公告)日：2025-02-20
申请号：US18936345
申请日：2024-11-04
Applicant: CUMMINS INC.
Inventor： Snehal Kulkarni , Vijaysai Karuppiah Kumareshan , Patricia Madigan , Nathaniel P. Hassall , David M. Barnes , Eric R. Downey
IPC: F02F7/00
Abstract: A cylinder block includes a cylinder block body and a load path structure. The cylinder block body defines a first cylinder block upper bore. The load path structure includes a first support rib having a first support rib body interfacing with the first cylinder block upper bore. The load path structure is configured to transfer a load from the first cylinder block upper bore along a non-linear path within the cylinder block body away from the first cylinder block upper bore.
-
公开(公告)号：US20220282685A1
公开(公告)日：2022-09-08
申请号：US17751867
申请日：2022-05-24
Applicant: Cummins Inc.
Inventor： Vijaysai Karuppiah Kumareshan , John Jerl Purcell, III
IPC: F02F1/00
Abstract: A cylinder liner for a cylinder bore of a cylinder of an internal combustion engine. The cylinder liner includes a cylindrical casing having an outer surface and an inner surface, wherein each surface has a respective surface area. The liner includes a liner seat positioned on the outer surface wherein the liner seat engages with the cylinder bore to position the cylindrical casing in the cylinder bore. The liner includes a relief feature positioned on the outer surface either adjacent the liner seat or above a mid-stop wherein the relief feature resists distortion of the cylindrical casing from the cylinder bore. The liner can include a stiffening feature positioned above the relief feature on the outer surface. The relief feature forms a depressed surface on the outer surface and the stiffening feature forms a raised surface on the outer surface of the cylindrical casing.
-
公开(公告)号：US20240141818A1
公开(公告)日：2024-05-02
申请号：US18383770
申请日：2023-10-25
Applicant: CUMMINS INC.
Inventor： Xiling Zhou , Darrin Ferry , Vijaysai Karuppiah Kumareshan
CPC classification number: F01P3/02 , F02F1/40 , F01P2003/024
Abstract: The application relates to cylinder head water jacket design. A water jacket for a cylinder head of an engine system includes a water jacket lower portion including a plurality of water jacket lower portion coolant inlets and a plurality of water jacket lower portion coolant paths. The water jacket lower portion is in coolant receiving communication with the water jacket lower portion coolant inlets. The water jacket further includes a water jacket upper portion connected to and in coolant receiving communication with the water jacket lower portion. The water jacket upper portion includes a first coolant rail, a second coolant rail, and a water jacket upper portion coolant outlet. A first one of the plurality of water jacket lower portion coolant paths surrounds at least a portion of an exhaust port of the cylinder head. A second one of the plurality of water jacket lower portion coolant paths is positioned between two intake ports of the cylinder head.
-
Patent Agency Ranking
公开(公告)号：US11946433B2
公开(公告)日：2024-04-02
申请号：US17751867
申请日：2022-05-24
Applicant: Cummins Inc.
Inventor： Vijaysai Karuppiah Kumareshan , John Jerl Purcell, III
CPC classification number: F02F1/004
Abstract: A cylinder liner for a cylinder bore of a cylinder of an internal combustion engine. The cylinder liner includes a cylindrical casing having an outer surface and an inner surface, wherein each surface has a respective surface area. The liner includes a liner seat positioned on the outer surface wherein the liner seat engages with the cylinder bore to position the cylindrical casing in the cylinder bore. The liner includes a relief feature positioned on the outer surface either adjacent the liner seat or above a mid-stop wherein the relief feature resists distortion of the cylindrical casing from the cylinder bore. The liner can include a stiffening feature positioned above the relief feature on the outer surface. The relief feature forms a depressed surface on the outer surface and the stiffening feature forms a raised surface on the outer surface of the cylindrical casing.
-
公开(公告)号：US20210310439A1
公开(公告)日：2021-10-07
申请号：US17351639
申请日：2021-06-18
Applicant: Cummins Inc.
Abstract: An engine block includes one or more cylinder bores at least partially surrounded by a cylinder bore wall. The cylinder bore wall includes a liner stop mechanism to support a liner in the cylinder bore. The engine block has an outer cylinder block wall that is exterior to the cylinder bore wall. The outer cylinder block wall includes at least one rib located relative to the liner stop mechanism to reduce rotation and buckling of the liner during operation of the engine.
-
公开(公告)号：US12140067B2
公开(公告)日：2024-11-12
申请号：US18383770
申请日：2023-10-25
Applicant: CUMMINS INC.
Inventor： Xiling Zhou , Darrin Ferry , Vijaysai Karuppiah Kumareshan
Abstract: The application relates to cylinder head water jacket design. A water jacket for a cylinder head of an engine system includes a water jacket lower portion including a plurality of water jacket lower portion coolant inlets and a plurality of water jacket lower portion coolant paths. The water jacket lower portion is in coolant receiving communication with the water jacket lower portion coolant inlets. The water jacket further includes a water jacket upper portion connected to and in coolant receiving communication with the water jacket lower portion. The water jacket upper portion includes a first coolant rail, a second coolant rail, and a water jacket upper portion coolant outlet. A first one of the plurality of water jacket lower portion coolant paths surrounds at least a portion of an exhaust port of the cylinder head. A second one of the plurality of water jacket lower portion coolant paths is positioned between two intake ports of the cylinder head.
-
公开(公告)号：US11536222B2
公开(公告)日：2022-12-27
申请号：US17351639
申请日：2021-06-18
Applicant: Cummins Inc.
Abstract: An engine block includes one or more cylinder bores at least partially surrounded by a cylinder bore wall. The cylinder bore wall includes a liner stop mechanism to support a liner in the cylinder bore. The engine block has an outer cylinder block wall that is exterior to the cylinder bore wall. The outer cylinder block wall includes at least one rib located relative to the liner stop mechanism to reduce rotation and buckling of the liner during operation of the engine.
-
公开(公告)号：US20210324816A1
公开(公告)日：2021-10-21
申请号：US17351438
申请日：2021-06-18
Applicant: Cummins Inc.
Abstract: An engine block includes one or more cylinder bores wherein each cylinder bore is surrounded by a cylinder bore wall. The cylinder bore wall includes a liner stop mechanism to locate a liner in the cylinder bore. The cylinder bore includes a mid-portion that spans between an upper end and a lower end, wherein the liner stop mechanism can be located near the upper end, near the lower end, or the mid-portion. The engine block has an outer cylinder block wall that is exterior to the cylinder bore wall. The outer cylinder block wall includes a first rib positioned above the liner stop mechanism and a second rib positioned below the liner stop mechanism relative to a cylindrical axis of the cylinder bore. The first and second ribs straddle the liner stop mechanism to reduce rotation and buckling of the liner during operation of the engine.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.028 seconds)
