Patent ID: 7128992
Filing Date: 2006-10-31
Classification: H01M,Y02E

Abstract:
1. A fuel cell power plant having a temperature management system, comprising: a fuel cell stack including cooling devices selected from cooler plates interspersed between at least some of the fuel cells in the stack and water transport plates in some or all of the fuel cells, and having a coolant outlet passing coolant from said cooling devices; a liquid/gas separator having an inlet connected to the coolant outlet of said fuel cell stack; a main pump having an inlet connected to a liquid outlet of said gas/liquid separator; a liquid accumulator receiving coolant outflow of said main pump; a secondary pump having an inlet connected to a liquid outlet of said liquid accumulator; an eductor, a principal inlet of which is connected to an outflow of said secondary pump and a secondary inlet of which is connected to the gas outlet of said gas/liquid separator, outflow of said eductor being conducted to said liquid accumulator.