Patents by Inventor David R. Krolewski

David R. Krolewski 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).

  • Dual drive radiator fan and coolant pump system for an internal combustion engine
    Patent number: 7597070
    Abstract: A dual drive radiator fan and coolant pump system for a liquid-cooled reciprocating internal combustion engine includes a coolant pump with an impeller shaft driven by a first drive extending between the engine's crankshaft and a pump pulley and hub mounted upon the impeller shaft. A second drive extends between the crankshaft and a fan hub journaled upon the pump hub, so that the coolant pump and fan hub are driven independently.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: October 6, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: David R. Krolewski, Mike W. Drawe, Kathleen K. Drawe, legal representative
  • DUAL DRIVE RADIATOR FAN AND COOLANT PUMP SYSTEM FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20090194045
    Abstract: A dual drive radiator fan and coolant pump system for a liquid-cooled reciprocating internal combustion engine includes a coolant pump with an impeller shaft driven by a first drive extending between the engine's crankshaft and a pump pulley and hub mounted upon the impeller shaft. A second drive extends between the crankshaft and a fan hub journaled upon the pump hub, so that the coolant pump and fan hub are driven independently.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 6, 2009
    Inventors: David R. Krolewski, Mike W. Drawe