Patents by Inventor Hsiao F. Wong

Hsiao F. Wong 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).

  • Piston for use in internal combustion engines and method of making the piston
    Patent number: 11994085
    Abstract: An additive manufactured piston having a crown portion and a skirt portion form of an aluminum-cerium-silicon alloy. The piston includes a least one recess pocket in an unstressed region located at an interface between an inner surface of the crown portion and an outer surface of the skirt portion. The skirt portion includes an outer panel surface defining an external rib adjacent a peripheral end surface, at least one stiffening rib extending from a pin boss to a skirt end, and a wall thickness of between 0.2 mm and 1.0 mm in a region between the external rib and the at least one stiffening rib. The skirt portion further includes an internal first rib having a width W1 on a thrust side portion and an internal second rib having a width W2 located on an anti-thrust side portion, in which W1 is greater than W2.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: May 28, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ronald John Petrus, Jared Matthew Satkowiak, Hsiao F. Wong, Kenneth E. Schroeder, Qigui Wang, Richard D. Ricchi
  • PISTON FOR USE IN INTERNAL COMBUSTION ENGINES AND METHOD OF MAKING THE PISTON
    Publication number: 20230417203
    Abstract: An additive manufactured piston having a crown portion and a skirt portion form of an aluminum-cerium-silicon alloy. The piston includes a least one recess pocket in an unstressed region located at an interface between an inner surface of the crown portion and an outer surface of the skirt portion. The skirt portion includes an outer panel surface defining an external rib adjacent a peripheral end surface, at least one stiffening rib extending from a pin boss to a skirt end, and a wall thickness of between 0.2 mm and 1.0 mm in a region between the external rib and the at least one stiffening rib. The skirt portion further includes an internal first rib having a width W1 on a thrust side portion and an internal second rib having a width W2 located on an anti-thrust side portion, in which W1 is greater than W2.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 28, 2023
    Inventors: Ronald John Petrus, Jared Matthew Satkowiak, Hsiao F. Wong, Kenneth E. Schroeder, Qigui Wang, Richard D. Ricchi