US 12,421,869 B2
Torsional vibration damper mechanism for gas turbine engine
Praveen Sharma, Bengaluru (IN)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Cincinnati, OH (US)
Filed on Jul. 25, 2024, as Appl. No. 18/784,078.
Claims priority of application No. 202311084357 (IN), filed on Dec. 11, 2023.
Prior Publication US 2025/0188850 A1, Jun. 12, 2025
Int. Cl. F01D 25/04 (2006.01)
CPC F01D 25/04 (2013.01) [F05D 2240/60 (2013.01); F05D 2260/96 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A torsional vibration damper mechanism for damping tortional vibration of a first drive shaft, a second drive shaft, or both, the torsional vibration damper mechanism comprising:
a third drive shaft mechanically coupled to the first drive shaft, the second drive shaft, or both at a first location to provide a first coupling spring constant and at a second location spaced apart from the first location to provide a second coupling spring constant, the second coupling spring constant being greater than the first coupling spring constant,
wherein the third drive shaft is configured to reduce or substantially to eliminate torsional vibration in the first drive shaft, the second drive shaft, or both.