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：US20230167794A1

公开(公告)日：2023-06-01

申请号：US18160556

申请日：2023-01-27

Applicant: Cummins Inc.

Inventor： Samuel David Griffith Magnuson ,  Donald J. Benson ,  Matthew B. State ,  Eric A. Benham ,  Aleksandr E. Lesin ,  Karthik Sethuraman

IPC: F02M59/10 ,  F02M59/06

CPC classification number: F02M59/102 ,  F02M59/06

Abstract: The present disclosure provides a high-pressure fuel pump including a barrel unit, a plunger, and a camshaft assembly having an eccentric cam lobe including a surface of the lobe. A follower is provided between the plunger and the surface of the lobe of the camshaft assembly to facilitate translation between the rotational movement of the camshaft assembly to axial movement of the plunger. The follower includes arcuate surfaces configured to mate with corresponding arcuate surfaces of the lobe of the cam shaft assembly and the plunger, respectively.