公开(公告)号：US20230003183A1

公开(公告)日：2023-01-05

申请号：US17784435

申请日：2019-12-19

Applicant: Mustafa Utku UNAL ,  Cummins Inc.

Inventor： Romaine O. Edwards ,  Mustafa Utku Unal ,  Aleksandr E. Lesin ,  Chin-Pei Wang ,  Neil Jeffries ,  Jason R. Garcia

IPC: F02M59/10 ,  F16H53/06 ,  F16H57/04

Abstract: A tappet roller assembly in which a roller shoe has a roller bore shaped to receive and retain a roller. The roller is sized and configured to rotate within the roller bore. The roller shoe may have a lubricating passage extending from a peripheral surface of the roller shoe to the roller bore to lubricate the roller.

公开(公告)号：US20220010870A1

公开(公告)日：2022-01-13

申请号：US17293599

申请日：2019-02-12

Applicant: Cummins Inc.

Inventor： Steven Valentin ,  Ross A. Phillips ,  Romaine O. Edwards ,  Eric A. Benham ,  Marian Trocki ,  Richard E. Duncan ,  Neil Jeffries ,  Karthik Sethuraman

IPC: F16H53/06 ,  F02M59/44 ,  F01L1/14 ,  F02M59/10

Abstract: A tappet assembly (100) used in mechanical equipment includes a tappet body (108) having a cylindrical shape and including a lower carrier portion (152) and an upper shell portion (158) having a cavity (150) defined by an inner wall (160) of the upper shell portion (158) and a top surface (154) of the lower carrier portion (152). The lower carrier portion (152) and the upper shell portion (158) are integrally formed as a single-piece unit. A post (162) extends upwardly from the top surface (154) of the lower carrier portion (152) and is configured to reduce a peak contact pressure associated with the tappet body (108).