Patents by Inventor Gregg T. Purcilly

Gregg T. Purcilly 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).

  • Engine and method of assembling an engine
    Patent number: 7849827
    Abstract: An engine is provided with features allowing a method of assembly that combines the ease of assembly of a net-assembled system with the positional accuracy of an index-assembled system in order to meet critical valve to piston clearance requirements, especially critical in a diesel engine.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: December 14, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Gregg T. Purcilly, Edward R. Romblom
  • ENGINE AND METHOD OF ASSEMBLING AN ENGINE
    Publication number: 20090044772
    Abstract: An engine is provided with features allowing a method of assembly that combines the ease of assembly of a net-assembled system with the positional accuracy of an index-assembled system in order to meet critical valve to piston clearance requirements, especially critical in a diesel engine.
    Type: Application
    Filed: February 19, 2008
    Publication date: February 19, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Gregg T. Purcilly, Edward R. Romblom
  • Camshaft drive system and engine assembly
    Patent number: 7270097
    Abstract: An engine assembly is provided including an engine crankshaft and a balance shaft connected with the crankshaft and rotatably driven thereby. A vehicle component such as a hydraulic pump or an overhead camshaft is operatively connected with the balance shaft such that it is rotatably driven by the crankshaft through the balance shaft. A camshaft drive system includes the engine crankshaft, the balance shaft and the overhead camshaft.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: September 18, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Gregg T. Purcilly, Franz Decarli, Chris Cowland