公开(公告)号：US20240337233A1

公开(公告)日：2024-10-10

申请号：US18747235

申请日：2024-06-18

Applicant: Eaton Intelligent Power Limited

Inventor： Swapnil JARANDE ,  Manasi Sachin SHETE ,  Michael HALSMER ,  Matthew A. VANCE

IPC: F02M59/10 ,  F02M59/48 ,  F04B53/00

CPC classification number: F02M59/102 ,  F02M59/48 ,  F04B53/00

Abstract: A pump actuator for use between a cam and a pump comprises a pump actuator body having a pad defined between a plunger facing surface and an opposite roller facing surface, where the plunger facing surface is recessed into the pump actuator body and offset from a radial end. The pump actuator body further comprises a cylindrical wall defined between the radial end and the plunger facing surface. A concave surface feature is formed on the pad on its plunger facing surface. The opposite roller facing surface of the pad is provided with a surface enhancing treatment comprising shot peening. These features, separately or in combination, provide mass-neutral improvements of the pump actuator body's fatigue life.