Gearbox assembly
AssigneeGeneral Electric Company
InventorsAhmet Dindar, Kedar S. Vaidya, Bugra H. Ertas, Arthur W. Sibbach
Life of this patent
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Abstract
A gearbox assembly for a turbine engine. The turbine engine includes a drive shaft and a fan shaft. The gearbox assembly includes a first gear, a second gear, an output, and a journal pin. The first gear is connected to the drive shaft. The second gear is supported by a planet carrier. The output is connected to the fan shaft. Torque is transferred from the drive shaft of the core turbine engine to the fan shaft through the gearbox assembly. The journal pin is inserted into the planet carrier. The second gear rotates about the journal pin. A coupling of the journal pin and the planet carrier is characterized by an interference ratio greater than a minimum interference ratio of 1.0e-5.
Claims20
A gearbox assembly for a turbine engine including a drive shaft and a fan shaft, the gearbox assembly comprising:
- a first gear coupled to the drive shaft;
- a second gear supported by a planet carrier;
- an output coupled to the fan shaft of the turbine engine, wherein torque is transferred from the drive shaft to the fan shaft through the gearbox assembly;
- and
- a journal pin inserted into the planet carrier, the second gear rotating about the journal pin,
- wherein a coupling of the journal pin and the planet carrier is characterized by an interference ratio greater than a minimum interference ratio of 1.0e-5.
A turbine engine comprising:
- a fan section including a fan having a fan shaft;
- a core turbine engine including a drive shaft;
- and
- a gearbox assembly comprising:
- a first gear connected to the drive shaft;
- a second gear supported by a planet carrier;
- an output connected to the fan shaft, wherein torque is transferred from the drive shaft to the fan shaft through the gearbox assembly;
- and
- a journal pin inserted into the planet carrier, the second gear rotating about the journal pin,
- wherein a coupling of the journal pin and the planet carrier is characterized by an interference ratio greater than a minimum interference ratio of 1.0e-5.
Dependencies are inferred from the claim text.