Patents by Inventor Christopher R. Ciesla

Christopher R. Ciesla 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).

  • System and method for achieving engine back-pressure set-point by selectively bypassing a stage of a two-stage turbocharger
    Patent number: 7748218
    Abstract: A control system for operating vanes of a turbocharger turbine (16T) and for operating a turbine-shunting bypass valve (22) according to a strategy wherein a processor executes an algorithm for selectively unenabling the control system to operate the bypass valve when the control system is operating the vanes to adjust exhaust back-pressure on the engine within a range of effectiveness for the vanes to control the exhaust back-pressure and enabling the control system to operate the bypass valve when the control system has operated the mechanism to a limit of the range of effectiveness.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: July 6, 2010
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Michael J. McNulty, Christopher R. Ciesla
  • Three sensor comparison rationality test
    Patent number: 7533519
    Abstract: Testing of temperature sensors (28, 30, 32) in an emission control system, such as in an exhaust system (10) of a diesel engine, serves to condition further component and/or system testing by determining that sufficient sensor cooling has occurred and that no sensor is “stuck within range” using a strategy (50).
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: May 19, 2009
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Michael J. McNulty, Christopher R. Ciesla, Christopher M. Kaas
  • SYSTEM AND METHOD FOR ACHIEVING ENGINE BACK-PRESSURE SET-POINT BY SELECTIVELY BYPASSING A STAGE OF A TWO-STAGE TURBOCHARGER
    Publication number: 20070295007
    Abstract: A control system for operating vanes of a turbocharger turbine (16T) and for operating a turbine-shunting bypass valve (22) according to a strategy wherein a processor executes an algorithm for selectively unenabling the control system to operate the bypass valve when the control system is operating the vanes to adjust exhaust back-pressure on the engine within a range of effectiveness for the vanes to control the exhaust back-pressure and enabling the control system to operate the bypass valve when the control system has operated the mechanism to a limit of the range of effectiveness.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Michael J. McNulty, Christopher R. Ciesla
  • Control strategies for a variable displacement oil pump
    Patent number: 7201147
    Abstract: An internal combustion engine (30) has a fueling system comprising fuel injectors (36) that utilize oil under pressure to force fuel into engine combustion chambers. Oil is pumped to an oil rail (44) by an engine-driven pump (42) whose effective displacement can be varied. A control system (32) processes certain data, such as engine speed and load, for controlling the effective displacement of the pump. The pump has a larger stage (42B) and a smaller stage (42A). The control system selects and de-selects the stages to control pump displacement.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: April 10, 2007
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: John E. Bernhardt, Christopher R. Ciesla
  • Control strategies for a variable displacement oil pump
    Publication number: 20040031467
    Abstract: An internal combustion engine (30) has a fueling system comprising fuel injectors (36) that utilize oil under pressure to force fuel into engine combustion chambers. Oil is pumped to an oil rail (44) by an engine-driven pump (42) whose effective displacement can be varied. A control system (32) processes certain data, such as engine speed and load, for controlling the effective displacement of the pump. The pump has a larger stage (42B) and a smaller stage (42A). The control system selects and de-selects the stages to control pump displacement.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 19, 2004
    Inventors: John E. Bernhardt, Christopher R. Ciesla