Patents Represented by Attorney, Agent or Law Firm Vincent A. Cicnosz
  • Ion sense ignition bias circuit
    Patent number: 6498490
    Abstract: Disclosed is a bias and measuring circuit that improves the ion sense measurement and ignition performance of an Ion Sense Ignition system where the ion current signal processing is implemented remote from the ignition coil. Specifically, the bias and measuring circuit of the invention reduces the effects of secondary harness capacitance on the ion current signal, minimizes the effects of harness electrical leakage and reduces the chances for “spark-on-make” (an ignition firing when the ignition coil primary is initially energized).
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 24, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Philip Allen Karau, Philip Ralph Peterson
  • Catalytic converter end plate inlet/outlet plenum length ratio
    Patent number: 6497847
    Abstract: A catalytic converter of the type having an inlet plenum between a converter inlet and an axial inlet face of a substrate and an outlet plenum between a converter outlet and an axial outlet face of the substrate, wherein a first axial length of the inlet plenum is in a range of 20-40% of the first axial length of the inlet plenum summed with a second axial length of the outlet plenum to minimize flow resistance in said catalytic converter.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: December 24, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael Ralph Foster, Scott Christopher Blanchet