Patents by Inventor Peter J. Bach

Peter J. Bach 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).

  • System and method of purging fuel cell stacks
    Patent number: 8512902
    Abstract: A fuel cell stack comprising a fuel inlet and an oxidant inlet for allowing the supply of a fuel and an oxidant to the fuel cell stack, respectively, and a fuel outlet and an oxidant outlet for allowing the removal of an anode exhaust and a cathode exhaust from the fuel cell stack, respectively, wherein the fuel outlet is fluidly connected to a high frequency purge valve.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 20, 2013
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Janusz Blaszczyk, Peter J. Bach, Michael J. Procter, Michael P. Sexsmith
  • COOLING SUBSYSTEM FOR AN ELECTROCHEMICAL FUEL CELL SYSTEM
    Publication number: 20110070511
    Abstract: Improvements in startup time for an electrochemical fuel cell system from freezing and sub-freezing temperatures may be observed by minimizing the coolant volume in the coolant subsystem. In particular, this may be accomplished by having a two pump—dual loop cooling subsystem. During startup, one pump directs coolant through a startup coolant loop and after either the fuel cell stack or the coolant temperature reaches a predetermined threshold value, coolant from a main or standard coolant loop is then directed to the fuel cell stack. In an embodiment, coolant from the standard loop mixes with coolant in the startup loop after the predetermined threshold temperature is reached.
    Type: Application
    Filed: November 30, 2010
    Publication date: March 24, 2011
    Applicants: DAIMLER AG, FORD MOTOR COMPANY
    Inventors: Amy E. Nelson, Bruce Lin, Joy A. Roberts, Uwe M. Limbeck, Craig R. Louie, Peter J. Bach
  • SYSTEM AND METHOD OF PURGING FUEL CELL STACKS
    Publication number: 20080213635
    Abstract: A fuel cell stack comprising a fuel inlet and an oxidant inlet for allowing the supply of a fuel and an oxidant to the fuel cell stack, respectively, and a fuel outlet and an oxidant outlet for allowing the removal of an anode exhaust and a cathode exhaust from the fuel cell stack, respectively, wherein the fuel outlet is fluidly connected to a high frequency purge valve.
    Type: Application
    Filed: October 31, 2007
    Publication date: September 4, 2008
    Inventors: Janusz Blaszczyk, Peter J. Bach, Michael J. Procter, Michael P. Sexsmith