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US 6,783,881 B2Granted
Filter assembly for intake air of fuel cell
AssigneeDonaldson Company, Inc.
InventorsEivind Stenersen, William Michael Nyman, Richard Thomas Canepa
Life of this patent
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Abstract
A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.
Claims11
A system for producing power, the system comprising
- (a) a fuel cell assembly having an oxidant intake port and a fuel intake port, and configured to produce electrical power from an oxidant and a fuel entering the oxidant port and the fuel intake port, respectively;
- (b) a filter assembly comprising:
- (i) a housing having an inlet configured to receive a dirty atmospheric air flowstream, and an outlet connected in fluid communication with the oxidant intake port;
- (ii) a filter element within the housing arranged and configured to intercept the air flowstream and to deliver clean air to the outlet, the filter element comprising a particulate filter portion constructed and arranged to remove particulate contaminants from the air flowstream;
- and
- (c) a sound suppression element within said housing, said sound suppression element construction and arranged to provide broadband sound attenuation of the sound passing therethrough by least 6 dB at one meter.
3 more elements
Dependencies are inferred from the claim text.