Chemical base for fuel cell engine heat exchange...

Details Chemical base for fuel cell engine heat exchange... Chemical base for fuel cell engine heat exchange...

2002-02-13

2008-11-18

Ogden, Jr., Necholus (Department: 1796)

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

C252S073000, C252S074000, C252S075000, C429S006000, C429S006000, C429S120000

Reexamination Certificate

active

07452479

ABSTRACT:
A nontoxic fuel cell engine coolant which has an electrical resistivity of greater than 250 kOhm-cm, a boiling point of greater than 90° C., a freezing point of less than −40° C., a thermal conductivity of greater than 0.4 W/m-k, a viscosity of less than 1 cPs at 80° C., a viscosity of less than 6 cPs at 0°C., a heat capacity of greater than 3 kJ/kg-K, and which is compatible with current cooling system materials.

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“A Chemical Base for Engine Coolant/Antifreeze With Improved Thermal Stability Properties,” by E. R. Eaton, W. H. Boon, and C. J. Smith, SAE Technical Paper Series 2001-01-1182, SAE 2001 World Congress, Detroit, Michigan, Mar. 5-8, 2001.
International Search Report of Jul. 16, 2002.
U.S. Appl. No. 09/989,888, filed Nov. 21, 2001, E. R. Eaton et al.

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