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公开(公告)号：US11192210B2
公开(公告)日：2021-12-07
申请号：US16346272
申请日：2017-06-20
Applicant: Cummins Inc.
Inventor： Jeffrey D. Lukasik , Kenneth G. Mark , Kent H. Clark
Abstract: A retaining ring configured for in-field repair of a fuel injector sleeve upper seal leak, comprising: a circular side wall comprising a barrel-shaped outer surface and a substantially cylindrical inner surface; wherein the outer surface comprises a lower curved portion and a central portion having a curvature that is less pronounced than the lower curved portion; and wherein the lower curved portion is configured to guide the retaining ring into the fuel injector sleeve and the circular side wall has an outer diameter at the central portion that is larger than an inner diameter of the fuel injector sleeve at a location of the upper seal leak such that the retaining ring forces the fuel injector sleeve outwardly at the location of the upper seal leak as the retaining ring is moved into an installed position.
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Patent Agency Ranking
公开(公告)号：US20180100432A1
公开(公告)日：2018-04-12
申请号：US15840300
申请日：2017-12-13
Applicant: Cummins Inc.
Inventor： John M. Antonevich , Reid Irish , Stephen D. Cofer, JR. , Kent H. Clark , Garrett Blum , Michael Kosinski , Beth Wagner , Mark Gray
CPC classification number: F02B75/045 , F16C7/04 , F16C7/06 , F16C2202/08 , F16C2360/22 , F16J1/22 , F16J7/00
Abstract: An energy storage device is provided for a combustion chamber of an internal combustion engine. The energy storage device includes first and second end connectors connected to respective ones of a piston and crankshaft, and a flexible connection rod portion rotatably connected with the first and second end connectors. The flexible connection rod portion elastically buckles above a predetermined cylinder pressure threshold to store combustion energy and provide a more constant pressure combustion process.
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公开(公告)号：US20230089302A1
公开(公告)日：2023-03-23
申请号：US18052441
申请日：2022-11-03
Applicant: Cummins Inc.
Inventor： Owen Summerfield , Craig Daniel Fox , Robert Harries , Jamie Kehoe , Kent H. Clark , John M Antonevich , Reid M. Irish , Scott A. Ragon , Stephen G. Townsend , Peter Thomas Quanz
IPC: F02F1/00
Abstract: An anti-polish ring for an internal combustion engine is provided. The anti-polish ring includes an axially extending ring portion that is configured to scrape a top portion of a piston in a cylinder liner. The anti-polish ring is configured to accommodate passage of an intake or exhaust valve thereby. The anti-polish ring may include an alignment feature so that the anti-polish ring is inserted in a predetermined orientation in the cylinder. The anti-polish ring may include a heat shield and/or a seating member.
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公开(公告)号：US20190255664A1
公开(公告)日：2019-08-22
申请号：US16346272
申请日：2017-06-20
Applicant: Cummins Inc.
Inventor： Jeffrey D. Lukasik , Kenneth G. Mark , Kent H. Clark
Abstract: A retaining ring configured for in-field repair of a fuel injector sleeve upper seal leak, comprising: a circular side wall comprising a barrel-shaped outer surface and a substantially cylindrical inner surface; wherein the outer surface comprises a lower curved portion and a central portion having a curvature that is less pronounced than the lower curved portion; and wherein the lower curved portion is configured to guide the retaining ring into the fuel injector sleeve and the circular side wall has an outer diameter at the central portion that is larger than an inner diameter of the fuel injector sleeve at a location of the upper seal leak such that the retaining ring forces the fuel injector sleeve outwardly at the location of the upper seal leak as the retaining ring is moved into an installed position.
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公开(公告)号：US11920538B2
公开(公告)日：2024-03-05
申请号：US18052441
申请日：2022-11-03
Applicant: Cummins Inc.
Inventor： Owen Summerfield , Craig Daniel Fox , Robert Harries , Jamie Kehoe , Kent H. Clark , John M Antonevich , Reid M. Irish , Scott A. Ragon , Stephen G. Townsend , Peter Thomas Quanz
IPC: F02F1/00
CPC classification number: F02F1/004 , F02F2001/006
Abstract: An anti-polish ring for an internal combustion engine is provided. The anti-polish ring includes an axially extending ring portion that is configured to scrape a top portion of a piston in a cylinder liner. The anti-polish ring is configured to accommodate passage of an intake or exhaust valve thereby. The anti-polish ring may include an alignment feature so that the anti-polish ring is inserted in a predetermined orientation in the cylinder. The anti-polish ring may include a heat shield and/or a seating member.
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公开(公告)号：US10808607B2
公开(公告)日：2020-10-20
申请号：US15840300
申请日：2017-12-13
Applicant: Cummins Inc.
Inventor： John M. Antonevich , Reid Irish , Stephen D. Cofer, Jr. , Kent H. Clark , Garrett Blum , Michael Kosinski , Beth Wagner , Mark Gray
Abstract: An energy storage device is provided for a combustion chamber of an internal combustion engine. The energy storage device includes first and second end connectors connected to respective ones of a piston and crankshaft, and a flexible connection rod portion rotatably connected with the first and second end connectors. The flexible connection rod portion elastically buckles above a predetermined cylinder pressure threshold to store combustion energy and provide a more constant pressure combustion process.
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