Patent ID: 7923168
Filing Date: 2011-04-12
Classification: H01M,Y02E

Abstract:
1. A fuel cell for reacting a first reactant with a second reactant comprising: a. an exchange membrane having a first side and a second side; b. a first input being configured to supply said first reactant to said fuel cell on said first side of said exchange membrane; c. a second input being configured to supply said second reactant to said fuel cell on said second side of said exchange membrane; d. a first stagnation chamber located on said first side of said exchange membrane, being configured to receive said first reactant from said first input; e. a first microjet plate located on said first side of said exchange membrane, said first microjet plate bounding said first stagnation chamber and comprising a plurality of microjet openings passing through said first microjet plate; f. a first impingement plate located on said first side of said exchange membrane and lying between said exchange membrane and said first microjet plate, said first impingement plate having a surface containing a plurality of exhaust openings and a plurality of webs lying between said plurality of exhaust openings; and g. wherein said plurality of microjet openings in said first microjet plate and said plurality of webs in said first impingement plate are positioned so that each gas microjet produced by each of said plurality of microjet openings strikes one of said plurality of webs, and the decelerated gas thereafter flows through said plurality of exhaust openings in said first impingement plate toward said exchange membrane.