DRIVE DEVICE, FLYING VEHICLE AND METHOD FOR COOLING AN ENGINE

Disclosed is a drive device, in particular for a flying vehicle such as an aircraft or a spacecraft, comprising at least one engine and a device for cooling the engine, the device for cooling the engine comprising a cryogenic refrigerator, i.e. refrigerating to a temperature between −100° C. and −27...

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Bibliographische Detailangaben
Hauptverfasser:	JEUNESSE, Loïc, DELAUTRE, Guillaume, ZIMMERMANN, Baptiste, STAEMPFLIN, Martin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BASIC ELECTRIC ELEMENTS BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS COSMONAUTICS DYNAMO-ELECTRIC MACHINES ELECTRICITY EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GENERATION HEAT EXCHANGE IN GENERAL HEAT PUMP SYSTEMS HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING ICE-BOXES INDUCTANCES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MAGNETS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PARACHUTES PERFORMING OPERATIONS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed is a drive device, in particular for a flying vehicle such as an aircraft or a spacecraft, comprising at least one engine and a device for cooling the engine, the device for cooling the engine comprising a cryogenic refrigerator, i.e. refrigerating to a temperature between −100° C. and −273° C., the refrigerator comprising a working circuit forming a loop and containing a working fluid, the working circuit forming a cycle comprising, in series: a mechanism for compressing the working fluid, a mechanism for cooling the working fluid, a mechanism for expanding the working fluid and a mechanism for heating the working fluid, the refrigerator comprising a portion for heat exchange between the working fluid expanded in the expansion mechanism and the engine, the refrigerator being configured to produce a first determined maximum refrigeration power, characterized in that the device for cooling the engine further comprises an additional refrigeration system comprising a cryogenic fluid store that can be brought into heat exchange with the refrigerator and/or the engine, the additional refrigeration system being configured to supply a second determined maximum refrigeration power to the refrigerator and/or to the engine when the cryogenic fluid is brought into heat exchange with the refrigerator and/or the engine.