PLANETARY GEARBOX FOR GAS TURBINE ENGINE

• Main Author: MITROVIC, Lazar
• Format: Patent
• Language: English; French; German
• Published: 04.08.2021
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; COSMONAUTICS; ENGINEERING ELEMENTS AND UNITS; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; GAS-TURBINE PLANTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PARACHUTES; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

An aircraft (1) includes first and second engines (10, 10A, 10B), one or more aircraft rotors (12, 12P) associated with the first and second engines (10, 10A, 10B), a first epicyclic gearbox (20) having: a) an output operatively connected at least one of the one or more aircraft rotors (12, 12P), and b) an input defined by a sun gear (32) of the first epicyclic gearbox (20); and a second epicyclic gearbox (58) having: a) an output operatively connected to at least one of the one or more aircraft rotors (12, 12P), and b) an input defined by a sun gear (60) of the second epicyclic gearbox (58). Output of the first epicyclic gearbox (20) is defined by the carrier (40). Output of the second epicyclic gearbox (58) is defined by its ring gear (62). A multi-engine aircraft (1) and a method of operating a multi-engine aircraft (1) are also described.