Selective power distribution for an aircraft propulsion system
AssigneeRtx Corporation
InventorPaul R. Hanrahan
Life of this patent
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Abstract
An assembly is provided for an aircraft propulsion system. This assembly includes a carrier, a first gear system, a second gear system and a lock device. The first gear system includes a sun gear, a first ring gear and a plurality of first intermediate gears between and meshed with the sun gear and the first ring gear. Each of the first intermediate gears is rotatably mounted to the carrier. The second gear system includes a second ring gear and a plurality of second intermediate gears meshed with the second ring gear. Each of the second intermediate gears is rotatably mounted to the carrier. The lock device is configured to lock rotation of the carrier about an axis during a first mode. The lock device is configured to unlock rotation of the carrier about the axis during a second mode.
Claims18
An assembly for an aircraft propulsion system, comprising:
- a carrier;
- a first gear system including a sun gear, a first ring gear and a plurality of first intermediate gears between and meshed with the sun gear and the first ring gear, and each of the plurality of first intermediate gears rotatably mounted to the carrier;
- a second gear system including a second ring gear and a plurality of second intermediate gears meshed with the second ring gear, and each of the plurality of second intermediate gears rotatably mounted to the carrier;
- a lock device configured to lock rotation of the carrier about an axis during a first mode, and the lock device configured to unlock rotation of the carrier about the axis during a second mode;
- and
- a gas turbine engine core including a compressor section, a combustor section, a turbine section and a rotating structure;
- the rotating structure comprising a turbine rotor within the turbine section;
- and
- the rotating structure coupled to and configured to drive rotation of the sun gear.
An assembly for an aircraft propulsion system, comprising:
- a carrier;
- a first gear system including a sun gear, a first ring gear and a plurality of first intermediate gears between and meshed with the sun gear and the first ring gear, and each of the plurality of first intermediate gears rotatably mounted to the carrier;
- a second gear system including a second ring gear and a plurality of second intermediate gears meshed with the second ring gear, and each of the plurality of second intermediate gears rotatably mounted to the carrier;
- a lock device configured to lock rotation of the carrier about an axis during a first mode, and the lock device configured to unlock rotation of the carrier about the axis during a second mode;
- and
- a first propulsor rotor coupled to and configured to be rotatably driven by the first ring gear.
An assembly for an aircraft propulsion system, comprising:
- a carrier;
- a first gear system including a sun gear, a first ring gear and a plurality of first intermediate gears between and meshed with the sun gear and the first ring gear, and each of the plurality of first intermediate gears rotatably mounted to the carrier;
- a second gear system including a second ring gear and a plurality of second intermediate gears meshed with the second ring gear, and each of the plurality of second intermediate gears rotatably mounted to the carrier;
- and
- a lock device configured to unlock rotation of the second ring gear about an axis during a first mode, and the lock device configured to lock rotation of the second ring gear about the axis during a second mode;
- wherein each of the plurality of second intermediate gears is rotationally fixed to a respective one of the plurality of first intermediate gears.
Dependencies are inferred from the claim text.