Readying cooling circuits for use in fuel cells

Details Readying cooling circuits for use in fuel cells Readying cooling circuits for use in fuel cells

2006-11-25

2010-02-02

Barr, Michael (Department: 1792)

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

C134S16900A, C134S16600C, C123S041080, C123S041090

Reexamination Certificate

active

07655098

ABSTRACT:
A flush and fill process is used to ready a fuel cell cooling circuit for initial use. An external flushing system releasably connected to the cooling circuit circulates flushing coolant through the cooling circuit to remove contaminants from the wetted surfaces of the cooling circuit before the fuel cell is put into use. The flushing system includes a pump for circulating the flushing coolant through the cooling circuit, filters for removing contaminants from the coolant and a heater for elevating the temperature of the coolant. Following the flushing process to remove contaminants, the flushing system is disconnected from the cooling circuit and the cooling circuit is filled with fresh coolant.

REFERENCES:
patent: 4596749 (1986-06-01), Congdon et al.
patent: 5094757 (1992-03-01), Light
patent: 6186254 (2001-02-01), Mufford et al.
patent: 6193895 (2001-02-01), Dea et al.
patent: 6316137 (2001-11-01), Kralick
patent: 6502590 (2003-01-01), DeBartolo et al.

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