PRESSURISING OF LUBRICATION CHAMBERS IN A TURBOMACHINE WITH COUNTER-ROTATING TURBINE

Disclosed is a turbomachine (10) with counter-rotating turbine for an aircraft, comprising: -a high-pressure body, -a low-pressure counter-rotating turbine (22), -a planetary-type mechanical epicyclic reduction gear (42), -a guide bearings (56-62) for the turbine shafts (36, 38), characterised in th...

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Bibliographische Detailangaben
Hauptverfasser:	BELMONTE, Olivier, LEVISSE, Paul Ghislain Albert, CATY, Fabien Roger Gaston, CHASSAGNE, Amélie Argie Antoinette
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed is a turbomachine (10) with counter-rotating turbine for an aircraft, comprising: -a high-pressure body, -a low-pressure counter-rotating turbine (22), -a planetary-type mechanical epicyclic reduction gear (42), -a guide bearings (56-62) for the turbine shafts (36, 38), characterised in that said reduction gear (42) and certain of the bearings (60, 62) are housed in a lubrication chamber (86) supplied with oil and comprising dynamic seals (86a-86d), and in that the turbomachine comprises circuits (C1, C2) for pressurising these seals.