Patents by Inventor Shikui Chen

Shikui Chen 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).

  • Recharging management for skipping cylinders
    Patent number: 11946423
    Abstract: A variety of methods and arrangements are described for managing recharging of cylinders of an internal combustion engine during skip fire operation of the engine. In one method, a maximum allowed deactivation time for a cylinder is determined and the cylinder is recharged before the maximum allowed deactivation time is exceeded.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: April 2, 2024
    Assignee: Tula Technology, Inc.
    Inventors: Louis Joe Serrano, Xiaoping Cai, Yongyan Cao, Vijay Srinivasan, Kevin Shikui Chen, Andrea Marie Evans, Avra Brahma
  • DECELERATION MANAGEMENT FOR DYNAMIC SKIP FIRE
    Publication number: 20220307434
    Abstract: A variety of methods and arrangements are described for operating an engine in a skip fire manner so that engine requirements, such as exhaust temperature, exhaust flow, torque and NVH, are met.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 29, 2022
    Applicants: Tula Technology, Inc., Cummins, Inc.
    Inventors: Louis J. Serrano, Kevin Shikui Chen, Xiaoping Cai, John Fuerst
  • RECHARGING MANAGEMENT FOR SKIPPING CYLINDERS
    Publication number: 20220065182
    Abstract: A variety of methods and arrangements are described for managing recharging of cylinders of an internal combustion engine during skip fire operation of the engine. In one method, a maximum allowed deactivation time for a cylinder is determined and the cylinder is recharged before the maximum allowed deactivation time is exceeded.
    Type: Application
    Filed: July 12, 2021
    Publication date: March 3, 2022
    Applicants: Tula Technology, Inc., Cummins, Inc.
    Inventors: Louis Joe Serrano, Xiaoping Cai, Yongyan Cao, Vijay Srinivasan, Kevin Shikui Chen, Andrea Marie Evans, Avra Brahma
  • Liquid spray nozzle with liquid injector/extractor
    Patent number: 5586723
    Abstract: Liquid is finely atomized and is ejected through apertures in a disc by virtue of high frequency vibration of the disc at controlled amplitudes. To insure an adequate supply of liquid to the disc while avoiding overflow and droplet leakage through the apertures, an injector meters supply liquid to the disc and simultaneously extracts excess liquid from the disc with a siphon action.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: December 24, 1996
    Assignee: Spraying Systems Co.
    Inventors: Shikui Chen, Ted Butterfield