公开(公告)号：US11619147B2

公开(公告)日：2023-04-04

申请号：US17818251

申请日：2022-08-08

Applicant: Jacobs Vehicle Systems, Inc.

Inventor： John Mandell ,  Marc B. Silva ,  Justin D. Baltrucki ,  P. Douglas Aubin

IPC: F01L1/26 ,  F01L9/10 ,  F01L1/18 ,  F01L1/46 ,  F01L9/40 ,  F01L13/00 ,  F01L13/06 ,  F01L1/22

Abstract: A valve actuation system comprises a valve actuation motion source configured to provide main and auxiliary valve actuation motions for actuating at least one engine valve via a valve actuation load path. A lost motion subtracting mechanism is arranged in a valve bridge and configured, in a first default operating state, to convey at least the main valve actuation motion and configured, in a first activated state, to lose the main valve actuation motion and the auxiliary valve actuation motion. Additionally, a lost motion adding mechanism is arranged in a rocker arm and configured, in a second default operating state, to lose the auxiliary valve actuation motion and configured, in a second activated state, to convey the auxiliary valve actuation motion, wherein the lost motion adding mechanism is parallel with the lost motion subtracting mechanism in the valve actuation load path at least during the second activated state.