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.

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.

公开(公告)号：US20220282641A1

公开(公告)日：2022-09-08

申请号：US17751315

申请日：2022-05-23

Applicant: CUMMINS INC.

Inventor： Dilip Bhattacharjya ,  Yitong Chen ,  Owen Morris ,  Robert Harries ,  Matthew D. Brumberg ,  Ravishankar Hirisave ,  Thomas Denne

IPC: F01L1/047 ,  F16H53/06 ,  F01M9/10

Abstract: A system comprises a follower lever and a follower roller rotatably coupled to the follower lever. A pin is rotatably coupled to the follower roller, the pin comprising a first outer portion including a first diameter and a second outer portion including a second diameter. A central portion is positioned between the first outer portion and the second outer portion, the central portion including a third diameter, the third diameter being smaller than the first diameter and the second diameter. One or more first channels is defined by the first outer portion, the one or more first channels positioned within the first outer portion and configured to direct fluid away from the central portion as the pin rotates.