Supplying air to cathode of fuel cell, comprises use of input/output heat exchanger with water attracting lining in output circuit and pump to add collected water to input

摘要

The cathode compartment (4) of a fuel cell (2) is supplied with air along a channel (12) and through an entry (10). Air deprived of oxygen is evacuated through a channel (14) and passes through a contraflow heat exchanger (15) with the new air input. The output tubes of the heat exchanger are lined with a water attracting material and water from the interstices is pumped (26) back to the input air through a circuit (24) An Independent claim is also included for: An installation which uses an input/output heat exchanger to recover water from the oxygen weakened output air and add it back to the input air