公开(公告)号：US11306678B1

公开(公告)日：2022-04-19

申请号：US17095488

申请日：2020-11-11

Applicant: Caterpillar Inc.

Inventor： Adam Joseph Clute ,  Scott David Perkins ,  Thomas Randall McClure ,  Michael R. Bochart

IPC: F02F3/00 ,  F02F1/20

Abstract: A piston includes an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, and a circumferential direction. The crown portion includes a top squish surface, and a circumferential annular wall extending downwardly axially from the top squish surface as well as a skirt. A first piston ring receiving groove is spaced away from the top squish surface, an upper land and a lower land extend from the first piston ring receiving groove, and a bottom blend connects the lower land to the first piston ring receiving groove.

公开(公告)号：US20220106923A1

公开(公告)日：2022-04-07

申请号：US17064810

申请日：2020-10-07

Applicant: Caterpillar Inc.

Inventor： Shu Zhang ,  Miguel M. Cervantes ,  Scott David Perkins ,  Andrew James Cummins

IPC: F02F1/00 ,  F02F7/00 ,  F02F1/24 ,  F02F1/42 ,  F02F3/00 ,  F16C3/10

Abstract: An annular cylinder liner includes an annular body defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, a circumferential direction, a first longitudinal end, a second longitudinal end, and a liner length measured from the first longitudinal end to the second longitudinal end along the longitudinal axis. The annular body also includes a shoulder that is disposed at the first longitudinal end, defining a shoulder axial thickness measured along the longitudinal axis. A ratio of the liner length to the shoulder axial thickness ranges from 24.0 to 46.0.