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.

公开(公告)号：US20230184144A1

公开(公告)日：2023-06-15

申请号：US17996796

申请日：2021-04-21

Applicant: Eaton Intelligent Power Limited

Inventor： Nikhil SAGGAM ,  Siddesh KAPDI ,  Suhrud PUROHIT ,  Matthew A. VANCE

IPC: F01L1/46 ,  F01L1/14 ,  F01L1/18 ,  F01L13/06 ,  F01L1/26 ,  F01L13/00

CPC classification number: F01L1/46 ,  F01L1/146 ,  F01L1/18 ,  F01L13/06 ,  F01L1/26 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2013/101 ,  F01L2001/467

Abstract: A lost motion mechanism can comprise a castellation device, comprising a casing, an upper castellation, and a lower castellation. The casing can comprise a first linear slot and a second linear slot perpendicular to the first linear slot. Upper castellation can comprise an upper body, spaced upper teeth extending from the upper body, the spaced upper teeth forming spaced upper gaps therebetween, and an actuation peg extending from the upper body into the first linear slot. Lower castellation can comprise a lower body, spaced lower teeth extending from the lower body, the spaced lower teeth forming spaced lower gaps therebetween, and an anti-rotation peg extending from the lower body into the second linear slot. An actuator can be configured with the lost motion mechanism so that a movable arm comprises a forked end configured to move on the actuation peg as the movable arm swivels.