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US 2002/0000086 A1Published application
Tip treatment bars in a gas turbine engine
AssigneeROLLS-ROYCE plc
InventorsPeter Allford, Mark J. Houle
Life of this patent
Estimating the term…
Abstract
A gas turbine engine casing includes a tip treatment ring 20 which comprises end supports 18 which support tip treatment bars 16. Each tip treatment bar 16 is mounted at its ends within the respective end supports 18 by means of damping elements 22, which isolate the bar 16 from the end supports 18. The elements 22 damp vibrations induced in the tip treatment bars 16 so inhibiting the initiation of high cycle fatigue cracking.
Claims27
A gas turbine engine casing comprising:
- oppositely disposed annular end supports;
- a plurality of tip treatment bars having opposite ends, each bar being supported at each end by the end supports;
- and
- damping means provided at at least one end of each bar, the damping means isolating the bar from the respective end support.
1 more element
A gas turbine engine casing comprising:
- oppositely disposed annular end supports provided with openings;
- a plurality of tip treatment bars having opposite ends which are disposed within the respective openings of the end supports;
- and
- an elastomeric damping element provided at each end of each bar, each damping element being provided between a respective one of the tip treatment bars and the wall of the respective opening in the adjacent end support, the damping elements thereby isolating the bar from the end supports.
1 more element
A gas turbine engine including an engine casing which comprises:
- oppositely disposed annular end supports provided with openings;
- a plurality of tip treatment bars having opposite ends which are disposed within the respective openings of the end supports;
- and
- an elastomeric damping element provided at each end of each bar, each damping element being provided between a respective one of the tip treatment bars and the wall of the respective opening in the adjacent end support, the damping elements thereby isolating the bar from the end supports.
1 more element
Dependencies are inferred from the claim text.