Pneumo-hydraulic converter for energy storage

F - Mech Eng,Light,Heat,Weapons – 15 – B

Patent

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Details

F15B 1/027 (2006.01) F04B 9/115 (2006.01) F15B 3/00 (2006.01) F28F 5/00 (2006.01)

Patent

CA 2236746

In order to maintain high efficiency close to isothermy despite high frequencies in a pneumo-hydraulic converter with reciprocating pistons, pipe cluster-heat exchange pipes (38) are provided in the gas working chambers of the converter and the exchange fluid in the pipes is kept at approximately ambient temperature. For this the gas working chambers must be arranged axially next to one another and, in order to eliminate dead space, connected in pairs by conical exchange valves (12a/12b) which take in the entire wall thickness of the valve flange (5a/5b) dividing the air chambers.

Pour conserver de hauts rendements proches de l'isothermie malgré des fréquences de base élevées dans un convertisseur pneumo-hydraulique doté de pistons alternatifs, les tubes (38) d'un échangeur thermique à faisceau de tubes traversent les compartiments opérationnels contenant du gaz du convertisseur et le fluide d'échange passant par l'échangeur thermique (33) est maintenu approximativement à la température ambiante. Pour ce faire, les compartiments opérationnels contenant du gaz doivent être axialement juxtaposés et raccordés par paires au moyen de soupapes d'échange coniques (12a/212b) pour éviter un espace mort, lesdites soupapes occupant toute l'épaisseur de la paroi du rebord de soupape (5a/5b) séparant les compartiments renfermant de l'air.

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