Patents by Inventor Constance J. King

Constance J. King 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).

  • Fluid flow control for cool, efficient fuel cell operation
    Patent number: 6572995
    Abstract: A fuel cell stack (7) has a two-pass fuel flow field (11, 14) extending from a fuel inlet (8) around a fuel turnaround manifold (12) to a fuel outlet (15). The stack has two air flow fields (37, 40) extending from an air inlet (32) through an air turnaround manifold (38) to an air outlet (41), the air outlet (41) being adjacent to the fuel outlet (15). The stack includes a coolant flow field (23, 25, 27) which extends from a coolant inlet (21) to a coolant outlet (28), the coolant inlet being adjacent to both the fuel outlet and the air outlet. The fluid flow configuration provides lower temperature, a more even temperature profile, a higher coolant exit temperature, and permits operation with higher air utilization and lower coolant flow.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: June 3, 2003
    Assignee: UTC Fuel Cells, LLC
    Inventors: Deliang Yang, Constance J. King
  • FLUID FLOW CONTROL FOR COOL, EFFICIENT FUEL CELL OPERATION
    Publication number: 20030049506
    Abstract: A fuel cell stack (7) has a two-pass fuel flow field (11, 14) extending from a fuel inlet (8) around a fuel turnaround manifold (12) to a fuel outlet (15). The stack has two air flow fields (37, 40) extending from an air inlet (32) through an air turnaround manifold (38) to an air outlet (41), the air outlet (41) being adjacent to the fuel outlet (15). The stack includes a coolant flow field (23, 25, 27) which extends from a coolant inlet (21) to a coolant outlet (28), the coolant inlet being adjacent to both the fuel outlet and the air outlet. The fluid flow configuration provides lower temperature, a more even temperature profile, a higher coolant exit temperature, and permits operation with higher air utilization and lower coolant flow.
    Type: Application
    Filed: September 7, 2001
    Publication date: March 13, 2003
    Inventors: Deliang Yang, Constance J. King