HEAT-INSULATING SHELL UNDER REVERSING VACUUM PRESSURE Russian patent published in 1998 - IPC

Abstract RU 2120686 C1

FIELD: temperature control for storage batteries of motor vehicles. SUBSTANCE: shell has internal and external walls with space between them communicating with external casing accommodating reversible non-evaporating hydrogen having equilibrium hydrogen pressure lower than 100 mbars at 500 C and hydrogen concentration within gas absorber being 0.1% by mass. Inner space between walls accommodates non-evaporating gas absorber with equilibrium hydrogen pressure higher than 100 mbars at 500 C and hydrogen concentration of 0.1% by mass at same temperature. In case of too high temperature of battery cells, heat transfer is effected due to high heat transfer of hydrogen at fast increase in its pressure in hollow space of shell. When conditions causing inadmissible temperature increase are eliminated, heat dissipation is minimized by recovering low hydrogen pressure in hollow space of shell due to reabsorbing hydrogen by means of reversing gas absorber as it cools down. Examples of working pressures and types of gas absorbers are given in description of invention. EFFECT: improved reliability of storage battery due to augmented heat transfer. 24 cl, 14 dwg

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RU 2 120 686 C1

Authors

Klaudio Boffito

Andrea Konte

Bruno Ferrario

Paolo Della Porta

Dates

1998-10-20Published

1994-07-07Filed