Patents by Inventor David H. Kaitschuck

David H. Kaitschuck 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).

  • Using camshaft timing device with hydraulic lock in an intermediate position for vehicle restarts
    Patent number: 9121358
    Abstract: A method of using a mid-position lock VCT phaser in an engine with a stop-start mode of operation with the steps of: when the engine is in a stop mode of the stop-start mode: adjusting a duty cycle of an actuator coupled to the control valve of the phaser to command the control valve to the retard mode; maintaining the duty cycle of the actuator to command the control valve to remain in the retard mode until an automatic restart of the engine. If the key is detected in an off position either restarting the engine; commanding the phaser to the detent mode, such that the lock pin is moved to a locked position and the phaser is locked in an intermediate phase angle position; and shutting down the engine or commanding the phaser to detent mode during engine cranking during a next engine restart.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: September 1, 2015
    Assignee: BorgWarner Inc.
    Inventors: Anna Strehlau, David H. Kaitschuck, Franklin R. Smith
  • USING CAMSHAFT TIMING DEVICE WITH HYDRAULIC LOCK IN AN INTERMEDIATE POSITION FOR VEHICLE RESTARTS
    Publication number: 20140244141
    Abstract: A method of using a mid-position lock VCT phaser in an engine with a stop-start mode of operation with the steps of: when the engine is in a stop mode of the stop-start mode: adjusting a duty cycle of an actuator coupled to the control valve of the phaser to command the control valve to the retard mode; maintaining the duty cycle of the actuator to command the control valve to remain in the retard mode until an automatic restart of the engine. If the key is detected in an off position either restarting the engine; commanding the phaser to the detent mode, such that the lock pin is moved to a locked position and the phaser is locked in an intermediate phase angle position; and shutting down the engine or commanding the phaser to detent mode during engine cranking during a next engine restart.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: BORGWARNER INC.
    Inventors: Anna Strehlau, David H. Kaitschuck, Franklin R. Smith