Patents by Inventor Dan Ducu

Dan Ducu 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).

  • Publication number: 20050120982
    Abstract: An engine oil distribution system for an internal combustion engine includes a main gallery and a separate oil gallery for piston cooling nozzles. The separate gallery may be controlled by a control valve that regulates the oil flow. The oil flow to the separate gallery may be controlled by an electronic control module in accordance with the piston cooling needs, for example, varied as a function of the load applied to the engine, or as a function of engine temperature. Preferably, engine temperature is sensed by coolant fluid temperature, or directly measured metal temperature, correlated to the thermal state of the piston.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Applicant: Detroit Diesel Corporation
    Inventor: Dan Ducu