Patents by Inventor Jerrold A. Pratt

Jerrold A. Pratt 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).

  • Turbocharger control management system
    Patent number: 6134888
    Abstract: An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: October 24, 2000
    Assignee: Dresser Industries, Inc.
    Inventors: Michael T. Zimmer, Richard J. Kakoczki, James A. Davis, Jerrold A. Pratt, Edward O. Reinbold
  • Turbocharger control management system
    Patent number: 5950432
    Abstract: An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 14, 1999
    Assignee: Dresser Industries, Inc.
    Inventors: Michael T. Zimmer, Richard J. Kakoczki, James A. Davis, Jerrold A. Pratt, Edward O. Reinbold
  • Turbocharger control management system
    Patent number: 5605044
    Abstract: An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 25, 1997
    Assignee: Dresser Industries, Inc.
    Inventors: Michael T. Zimmer, Richard J. Kakoczki, James A. Davis, Jerrold A. Pratt, Edward O. Reinbold
  • Turbocharger control management system
    Patent number: 5551236
    Abstract: An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: September 3, 1996
    Assignee: Dresser Industries, Inc.
    Inventors: Michael T. Zimmer, Richard J. Kakoczki, James A. Davis, Jerrold A. Pratt, Edward O. Reinbold