Patents by Inventor P. Douglas AUBIN

P. Douglas AUBIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Valve actuation system comprising parallel lost motion components deployed in a rocker arm and valve bridge
    Patent number: 11619147
    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.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: April 4, 2023
    Assignee: Jacobs Vehicle Systems, Inc.
    Inventors: John Mandell, Marc B. Silva, Justin D. Baltrucki, P. Douglas Aubin
  • VALVE ACTUATION SYSTEM COMPRISING PARALLEL LOST MOTION COMPONENTS DEPLOYED IN A ROCKER ARM AND VALVE BRIDGE
    Publication number: 20230015394
    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.
    Type: Application
    Filed: August 8, 2022
    Publication date: January 19, 2023
    Inventors: John MANDELL, Marc B. SILVA, Justin D. BALTRUCKI, P. Douglas AUBIN