| abstract |
This device comprises: a compression unit ( 4 ) having a plurality of stages, said unit being supplied with gas from the cryogenic tank ( 2 ) and delivering gas at an engine supply pressure, a reliquefaction system ( 20 ) having an outlet for liquid to the cryogenic tank ( 2 ), and an exchanger ( 10 ) arranged between the cryogenic tank ( 2 ) and the compression unit ( 4 ), in order to heat the evaporation gas coming from the tank ( 2 ) before it enters the compression unit ( 4 ). The evaporation gas coming from the cryogenic tank ( 2 ) is heated by gas compressed inside the compression unit ( 4 ) to a pressure lower than the engine supply pressure. The reliquefaction system ( 20 ) is supplied with gas compressed inside the compression unit ( 4 ) to a pressure lower than the supply pressure of the engine. |