Patents by Inventor Philip T. Leonard

Philip T. Leonard 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).

  • Inlet manifold temperature control system for an internal combustion engine
    Patent number: 6883315
    Abstract: The turbocharged exit air from a turbocharger flows through an intercooler, and then into an air intake manifold of a diesel engine. The intercooler exchanges heat with a liquid coolant in the intercooler when the coolant is cooler than the charge air, and substantially does not exchange heat with the liquid coolant in the intercooler when the coolant is warmer than the charge air. A controller located on the coolant tubing leading into the intercooler compares the temperature of the charge air to the temperature of the coolant, and at least partially stops the coolant from circulating by at least partially closing a valve in the coolant tubing when the charge air is cooler than the coolant.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: April 26, 2005
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventors: Stanley D. Shakenis, Philip T. Leonard, Randall D. Payne
  • INLET MANIFOLD TEMPERATURE CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20040200220
    Abstract: The turbocharged exit air from a turbocharger flows through an intercooler, and then into an air intake manifold of a diesel engine. The intercooler exchanges heat with a liquid coolant in the intercooler when the coolant is cooler than the charge air, and substantially does not exchange heat with the liquid coolant in the intercooler when the coolant is warmer than the charge air. A controller located on the coolant tubing leading into the intercooler compares the temperature of the charge air to the temperature of the coolant, and at least partially stops the coolant from circulating by at least partially closing a valve in the coolant tubing when the charge air is cooler than the coolant.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Applicant: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
    Inventors: Stanley D. Shakenis, Philip T. Leonard, Randall D. Payne