Closed cycle engine

Details Closed cycle engine Closed cycle engine

F - Mech Eng,Light,Heat,Weapons

02

B

F02B 47/10 (2006.01) B63G 8/12 (2006.01)

Patent

CA 2655866

A closed cycle engine system comprises an engine unit operable to combust fuel with combustion supporting gas, and a gas circuit providing fluid communication between the intake and the exhaust of the engine unit. In operation, the engine unit produces exhaust gases. The gas circuit is provided with an absorber to at least partially absorb the exhaust gases and a flow resistance. The flow resistance is located between the absorber and the intake, and is arranged such that the pressure at the intake is less than the pressure at the exhaust. Such an arrangement improves the efficiency of the absorber, and thus the overall efficiency of the engine. A method of operating such an engine system, and vehicles comprising such an engine system, are also disclosed.

Système de moteur à cycle fermé comprenant une unité de moteur qui fonctionne par combustion de carburant à l'aide d'un gaz de combustion, et un circuit de gaz assurant une communication fluidique entre l'admission et l'échappement de l'unité de moteur. En fonctionnement, l'unité de moteur produit des gaz d'échappement. Le circuit de gaz comporte un absorbeur, pour absorber au moins partiellement les gaz d'échappement, et un dispositif de résistance à l'écoulement. Le dispositif de résistance à l'écoulement est situé entre l'absorbeur et l'admission, et est disposé de telle sorte que la pression au niveau de l'admission est inférieure à la pression au niveau de l'échappement. Cette disposition améliore le rendement de l'absorbeur, et donc le rendement total du moteur. Un procédé d'actionnement de ce système de moteur, et des véhicules comprenant ce système de moteur, sont également décrits.

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