Patents by Inventor Geoffrey Ngao

Geoffrey Ngao 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).

  • IMPELLER AND TURBOCHARGER
    Publication number: 20100322781
    Abstract: An impeller having a rotation axis, a radial direction, a backplate and a number of vanes which are connected to the backplate at a line of connection is provided. Each vane has an upstream side, a downstream side and an outer side. The downstream side of each vane has an edge portion which is located near the outer side. The vanes project radially over the backplate and the downstream side further includes a connecting portion connecting the edge portion to the backplate and including an angle with the radial direction. The connecting portion includes a convex rounded portion which is located near the line of connection. Moreover, a turbocharger having an inventive impeller is disclosed.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 23, 2010
    Applicant: NAPIER TURBOCHARGERS Limited
    Inventors: Francis Heyes, Paul Roach, Ian Brown, Geoffrey Ngao