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：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.