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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An exemplary fuel cell system includes a cell stack assembly having a plurality of cathode components and a plurality of anode components. A first reactant blower has an outlet situated to provide a first reactant to the cathode components. A second reactant blower has an outlet situated to provide a second reactant to the anode components. The second reactant blower includes a fan portion that moves the second reactant through the outlet. The second reactant blower also includes a motor portion that drives the fan portion and a bearing portion associated with the fan portion and the motor portion. The motor portion has a motor coolant inlet coupled with the outlet of the first reactant blower to receive some of the first reactant for cooling the motor portion.
PATEL, Kirtikumar H. (Berlin, CT), SAITO, Kazuo (Glastonbury, CT)
Ballard Power Systems Inc. (Burnaby CA)
13/ 872,237
April 29, 2013
[0001] This invention was made with U.S. Government support under Contract No. DE-NT0003894 awarded by the Department of Energy. The Government has certain rights in this invention.