Invention Grant
- Patent Title: Energy damping system for gas turbine engine stationary vane
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Application No.: US14687052Application Date: 2015-04-15
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Publication No.: US09777594B2Publication Date: 2017-10-03
- Inventor: Matthew H. Lang
- Applicant: Siemens Energy, Inc.
- Applicant Address: US FL Orlando
- Assignee: SIEMENS ENERGY, INC.
- Current Assignee: SIEMENS ENERGY, INC.
- Current Assignee Address: US FL Orlando
- Main IPC: F01D25/04
- IPC: F01D25/04 ; F01D9/04 ; F01D5/22 ; F01D25/24

Abstract:
A stage (10) of stationary vanes (12) of a gas turbine engine, including: a plurality of stationary vanes disposed in an annular array (14); and an energy damping system (30) having a plurality of connection assemblies (32), each joining respective adjacent stationary vanes. A spring (34) is configured to circumferentially bias respective adjacent stationary vanes, and a damper (36) is configured to oppose relative circumferential movement between the respective adjacent stationary vanes. The connection of the overall assembly disclosed herein allows for the oscillating system to decrease its amplitude over the shortest time period no matter the conditions. This reduces wear compared to underdamped arrangements that do not decrease amplitude as quickly.
Public/Granted literature
- US20160305278A1 ENERGY DAMPING SYSTEM FOR GAS TURBINE ENGINE STATIONARY VANE Public/Granted day:2016-10-20
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